by Chris Adams | May 25, 2022 | Accessibility Testing, Blog |
According to a survey by WebAIM, low contrast text is the most widely seen bug with regard to accessibility as it is present in 86.3% of the top one million home pages on the web. So despite the different preferences of the users when it comes to font color, the focus should always be on the legibility of the text. Color Contrast Analysis goes beyond the text color as proper contrast levels have to be maintained even in visual elements like graphs, infographics, and interactive elements such as links, buttons, and so on. But how will you determine if the contrast levels used are in line with the standards set by WCAG? We simply can’t take a look at it and come to a conclusion on our own. That is where Color Contrast Analyser comes into play.
So in this blog, we will be explaining to you how to use a Color Contrast Analyser for your testing with a few sample scenarios as well. Even though the process itself is very simple, the effectiveness of using a color contrast analyzing tool comes with the maximum coverage we can attain. So we will also be seeing a general checklist and a few common challenges that you will be facing during your testing.
Why should we use a Colour Contrast Analyzer for Accessibility Testing?
People with visual impairments such as color blindness and low vision find it difficult to identify the difference between certain color combinations like Red-Green, Red-Black, Blue-Yellow, and so on. As a result, if online sites contain text with such color combinations, or if there is a lot of content with small font size on a non-white backdrop, it becomes hard for anyone with visual impairments to see and understand it. So color contrast analyser is an easy-to-use, yet effective tool that will let you know if your choice of color combinations will pass the visibility test.
How to test Color Contrast for Accessibility?
Though there are numerous color contrast analyzing tools available, we always opt to use the Color Contrast Analyser provided by TPGi as it is widely used for accessibility testing by testers. You can download both the Windows and macOS versions by visiting the TPGi website.
So once you have installed the Color Contrast Analyser by following the mentioned steps, you will be able to check if the contrast levels fulfill the success criteria defined by WCAG. We all know that accessibility is measured by the level of compliance (A, AA, & AAA). So the level of color contrast ratio comes under the AA & AAA compliance levels. The specific success criteria that can be used to find out if the text is accessible for sighted people is WCAG 1.4.3. The contrast ratio should be greater than 4.5:1 in order to pass this success criterion from WCAG 2.1. Likewise, for non-text content, the success criteria to comply with is 1.4.11 and the contrast ratio should be higher than 3:1 to pass.
Now that we know what the goal is, the first step would be to check the size of the font and get an idea of whether it will be considered small or large text. If the text size is 18 points (24 pixels), it will be considered large text. And if the text size is 14 points (18 pixels) it will be considered small text. The reason is that there are distinct success criteria for both small and large text.
S. No |
Type of Content |
WCAG Success Criteria |
Required Contrast Level for Level AA |
Required Contrast Level for Level AAA |
1 |
Text Content |
WCAG 1.4.3 |
4.5:1 (Small Text) 3.1(Large Text) |
7:1(Small Text) 4.5:1(Large Text) |
2 |
Image Of Text |
WCAG 1.4.5 |
4.5:1 |
– |
3 |
Non-Text Content (Link, Graph, Buttons, And So On) |
WCAG 1.4.11 |
3:1 |
– |
You can easily use the Color Contrast Analyzer by following the below-mentioned steps
- Click on the Color Picker option in CCA.
- Place the picker correctly on the background of the text and click to pick the color.
- Look for the darkest part of the text and pick the color using the tool.
- You can even input the hex codes of the colors you wish to check if you do not want to use the eyedropper tool.
If the contrast levels between the background and text are okay, we will see a green color tick mark in the contrast tool. If not, it will show a red color X mark. The same process can be repeated for all other content such as images of text, links, buttons, radio buttons, and so on.
How to check color contrast on a mobile app?
Since there aren’t any mobile applications that can do the same tasks as the Color Contrast Analyser, you can use the color palette of your app to check the color contrast levels. But if you do not have access to the mobile app’s color palette, one easy alternative is to just take screenshots of the various screens you want to test and transfer them to your computer to test it using CCA. But if your app is large in scale, you might want to use a simulator to get your testing done.
Whichever method you opt to use, you have to keep a few things in mind when it comes to testing color contrast for mobile apps. Though we do not turn on high contrast mode in computers, dark mode & high contrast settings are important as both Android and iOS have recently introduced system-wide “Dark Mode” functionality. So you have to make sure to test the color contrast levels in both the dark and light modes.
It is also tough to judge the text size with just the appearance on mobile devices as they have a broad range of DPI and screen sizes. So make sure you do not presume the text is huge unless you know for sure that it is 18+ pt or 14+ pt bold (24px or 19px bold for online).
Checklist
- Make sure to test web elements by shifting focus to them, hovering over them, and so on to see if the desired visual indicators such as outline/border creation, or color/background changes.
- Check if the outline or border width is at least 2 px.
- Make sure no meaning is conveyed only by color if there are additional formatting options such as bold, italics, or underline.
- If texts are there in an image, ensure that the font size is at least 16 px to maintain legibility.
- Ensure that pie charts have a gap between each portion to make it possible for people with color blindness to see and understand it clearly. Based on the level of compliance, you can even add labels with arrows to ensure there is no type of miscommunication.
- Since logos and decorative images are exempt from color contrast analysis, you need not waste time worrying about them.
- If there are any outlines behind a text, to make up for the change in the opacity of the text or the luminance of the background, the color of the outline should only be considered as the background color.
- Make sure the ‘High Contrast’ or Night modes are turned off when performing these tests on your computer.
- If any drop-down or flyout vanishes whenever the CCA comes into focus, make sure to take a screenshot of the flyout and then test it using the CCA.
Sample Scenarios
We have used a random website in the below scenarios for our explanation purposes. We will be a success scenario and a failure scenario as it will help you get a clear picture of using a Color Contrast Analyser.
Scenario 1:
In this scenario, the regular text has failed at the AA level and the large text has failed at the AAA level of the compliance. It is also evident that it has passed only in the non-text contrast testing. As a result, the image will be very hard for visually impaired viewers to view.
Scenario 2:
Since it is black text on a white background, all the conditions have been satisfied in the color contrast analyzing text.
Conclusion
Though color contrast analysis is a very simple process, the ability to yourself in the shoes of a visually impaired person is the key to attaining the best results. Thanks to our years of experience in providing accessibility testing services to numerous clients, we have a well-trained accessibility testing team that has delivered the best results with maximum coverage. And that knowledge is what has helped us convey such informative content. So make sure to subscribe to our newsletter to stay tuned with Codoid.
by Hannah Rivera | May 9, 2022 | Accessibility Testing, Blog |
Apple is one of the biggest technology companies in the world with over 1.8 billion active devices as of 2022. VoiceOver is an in-built screen reader that was first introduced by Apple in 2009. It is now available on all their devices like Macs, iPhones, iPads, and so on. So as an accessibility tester, knowing to use VoiceOver for testing is mandatory. Being a leading web accessibility testing services provider, we have written this VoiceOver Quick Reference Guide that will help you in using VoiceOver for your accessibility testing. So we will be covering the various VoiceOver shortcut keys you’ll need to know when it comes to Macs and the various VoiceOver gestures when it comes to iPhones & iPads.
How to Get VoiceOver Started?
So let’s start this VoiceOver Quick Reference Guide by seeing how to start VoiceOver across all the devices. On a Mac, you can start VoiceOver by either using the shortcut keys (Command + F5) or by Settings -> General Section -> Accessibility Menu -> VoiceOver.
If you are using an iPad or iPhone that is supported by Siri, then you could also boot it up using Siri. You can also triple press the side button or the home button to start VoiceOver, or turn it on by Settings -> Accessibility -> VoiceOver.
Rotor
One unique feature in VoiceOver is the rotor, which can be described as a wheel of commands that is dependent on the context. So the user can choose what settings or navigation options that have to appear in the rotor. The rotor is highly customizable as the user can assign different navigation options such as headings, window spots, links, and so on as shown.
You can define the settings you want to display in the rotor by navigating to Settings -> General -> Accessibility -> Voiceover -> Utility -> Web -> Web Rotor.
When it comes to devices such as iPads and iPhones, you can also turn Rotor on by swiping two fingers on the touchscreen like how you would dial with a rotating dial pad. And you will get a similar functionality where you can define the navigation options you need and use them by performing the appropriate gestures.
Accessibility Testing Using VoiceOver
Screen readers are accessibility testing tools that are primarily assistive technologies used by people with disabilities to access the content. So knowing the basic VoiceOver keyboard shortcuts to operate it is a must. In addition to that, there are a few checkpoints that every accessibility tester should validate to ensure that the content is accessible. So in this VoiceOver Quick Reference Guide, we have categorized the VoiceOver keyboard shortcuts with reference to those checkpoints.
- Content Navigation
- Reading Content
- Interactive Element Navigation
- Table Navigation
VoiceOver Keyboard Shortcuts for macOS:
iMacs and Macbooks are the Apple devices where VoiceOver can be controlled using various keyboard shortcuts. Since devices like iPads and iPhones have a touch screen for the input, they will be using touch gestures to control VoiceOver. We will be covering those gestures later on the blog once we have seen the keyboard shortcuts.
Functional :
S. No |
Actions |
Commands |
1 |
Start Or Stop VoiceOver |
Command + F5 |
2 |
VoiceOver Activation Keys (Or VO Keys) |
Control + Option (Referenced As VO) |
3 |
Lock (Or Unlock) VO Keys |
Control + Option + ; |
4 |
Open Rotor |
Control + Option + U |
5 |
Choose Speech Setting Options Such As Speaking Rate, Voice, Pitch, Etc. |
Control + Option + Command + Right Arrow / Left Arrow |
6 |
Modify The Chosen Speech Setting |
Control + Option + Command + Up Arrow / Down Arrow |
7 |
Toggle Screen Curtain On/Off |
Control + Option+ Shift +F11 |
Content Navigation
S. No |
Actions |
Commands |
1 |
Go To The Top Of The Page (IMacs) |
Control + Option + Home |
2 |
Go To The Top Of The Page (Macbooks) |
Control + Option + Fn + Left Arrow |
3 |
Navigate To The Bottom Of The Page (IMacs) |
Control + Option+ End |
4 |
Navigate To The Bottom Of The Page (Macbooks) |
Control + Option + Fn + Right Arrow |
5 |
Go To The Next Heading |
Control + Option + Command + H |
6 |
Go To The Next Table |
Control + Option + Command + T |
7 |
Go To The First Item On Page |
Control + Option + A |
8 |
Scroll (Vertically Or Horizontally) |
Shift Key + Scroll |
9 |
Go To Previous (Heading, Table, Etc.) |
Control + Option + Shift + Command + (H, T, Etc.) |
Reading Content:
S. No |
Actions |
Commands |
1 |
Start Reading |
Control + Option+ A |
2 |
Stop Reading |
Control |
3 |
Start Reading Continuously From This Point On |
Control + Option + Down Arrow |
4 |
Read The Entire Page |
Control + Option + Up Arrow / Down Arrow |
5 |
Read The Next Line, Word, Character |
Control + Option + Right Arrow |
6 |
Read The Previous Line, Word, Character |
Control + Option + Left Arrow |
7 |
Repeat The Last Spoken Phrase |
Control + Option + Z |
8 |
Read The Selected Paragraph |
Control + Option + P |
9 |
Read The Selected Sentence |
Control + Option + S |
10 |
Read The Selected Word |
Control + Option + W |
11 |
Spell The Selected Word Alphabetically |
Control + Option + W + W |
12 |
Spell The Selected Word Phonetically |
Control + Option + Shift + Command + (H, T, Etc.) |
13 |
Read From Top To Current Location |
Control + Option +B |
Interactive Elements Navigation:
If you are unsure of what interactive elements are, they are what the name suggests. They are web elements that a user can interact with or elements that respond to inputs from the user.
S. No |
Actions |
Commands |
1 |
Go To The Next/Previous Focusable Item (Link, Button, Input, Etc.) |
Tab / Shift + Tab |
2 |
Next Link |
Control + Option + Command + L |
3 |
Next Visited Link |
Control + Option + Command + V |
4 |
Next Form Element |
Control + Option+ Command + J |
5 |
Next List |
Control + Option + Command + X |
6 |
Next Graphic |
Control + Option+ Command + G |
7 |
Activate A Link Or Form Control |
Control + Option Enter (Or) Space Bar |
8 |
Interact With (Go Into/Out Of) Objects (Like Iframes, Menus, Application Regions, Etc.) |
Control + Option + Shift + Down Arrow / Up Arrow |
Table Navigation:
S. No |
Actions |
Commands |
1 |
Next Table |
Control + Option + Command + T |
2 |
Read Column Header |
Control + Option + C |
3 |
Read Row From VO Cursor Location To End Of Row |
Control + Option + R |
4 |
Read Column From VO Cursor Location To The Bottom Of Column |
Control + Option + R + C |
5 |
Move Up Or Down In A Column |
Up Arrow Or Down Arrow |
6 |
Move To The Left Or Right In A Row |
Left Arrow Or Right Arrow |
iOS VoiceOver gestures
Apart from the way VoiceOver is controlled on these touch-enabled devices, it does provide a very uniform experience across the Apple ecosystem. So let’s take a look at the various gestures in the same categorized view as before.
- Functional
- Content Navigation
- Reading Content
- Interactive Element Navigation
- Text Editing
- Table Navigation
Apart from the gestures that you will be seeing in this VoiceOver Quick Reference Guide, you will also have the option to enable typing feedback for VoiceOver to read out the words or characters that have been typed by Settings -> General -> VoiceOver -> Typing Feedback. Since VoiceOver changes the way gestures work on an iPad or iPhone, make sure to disable them in the Settings.
Functional:
S. No |
Action |
Command |
1 |
Start Or Stop VoiceOver (When It Is Enabled) |
Triple-Press Home Button Or Side Button (IPhone X +) |
2 |
Gesture Help |
4-Finger Double-Tap |
3 |
Split Tap Quick-Activation |
Select And Hold With One Finger, Tap With Another |
4 |
Double-Press Button |
Triple-Tap |
5 |
Next/Previous App |
4-Finger Swipe Right/Left |
6 |
Drag Mode |
Tap Twice And Hold |
7 |
Toggle Screen Curtain On/Off |
Three-Finger Triple-Tap |
8 |
Item Chooser: |
Two-Finger Triple-Tap |
9 |
Choose Speech Setting Options Such As Speaking Rate, Voice, Pitch, Etc. |
VO + Command + Right/Left Arrow Key |
10 |
Modify The Chosen Speech Setting |
VO + Command+ Up/Down Arrow Key |
11 |
Open Rotor |
Rotate Two Fingers |
Content Navigation
S. No |
Action |
Gesture |
1 |
Go To The Top Of The Page |
Two-Finger Swipe Up |
2 |
Navigate To The Bottom Of The Page |
Two-Finger Double-Tap One-Finger Tap |
3 |
Go To The Next Heading |
Set Headings On Rotor And Swipe Down |
4 |
Go To The Next Table |
Rotor, Swipe Down |
5 |
Go To Previous (Heading, Table, Etc.) |
Swipe Up |
6 |
Go Back, Close A Popup, Or Cancel The Last One. |
Two-Finger Scrub |
7 |
Go To The First Item On The Page |
4-Finger Tap On The Upper/Lower Half Of The Screen |
8 |
Scroll (Vertically Or Horizontally) |
3-Finger Swipe Up, Down, Left, Or Right |
9 |
Go Back To One Link, List, Table, Landmark, Heading, Etc. |
Swipe Up |
Reading Text:
S. No |
Action |
Command |
1 |
Start/Stop Reading |
Two-Finger Tap |
2 |
Start Reading Continuously From This Point On |
Two-Finger Swipe Down |
3 |
Read The Entire Page |
Two-Finger Swipe Up |
4 |
Read Next Line, Word, Character |
Rotor, Swipe Down |
5 |
Read The Previous Line, Word, Character |
Rotor, Swipe Up |
6 |
Read The Selected Paragraph |
Swipe Down – Two Fingers |
7 |
Read The Selected Sentence |
Swipe Down – Two Fingers |
8 |
Read The Selected Word |
Read The Selected Word |
9 |
Read From Top To Current Location |
VO + B |
10 |
Toggle Speech On/Off |
Three-Finger Double-Tap |
Interactive Elements Navigation:
S. No |
Action |
Command |
1 |
Go To The Next/Previous Focusable Item (Link, Button, Input, Etc.) |
Swipe Right |
2 |
Next Link |
Rotor, Swipe Down |
3 |
Next Visited Link |
VO + Command +V |
4 |
Next Form Or Button Element |
VO + Command + J |
5 |
Select And Deselect Checkboxes, Radio Buttons |
Double-Tap |
6 |
Next Checkbox. Combo Box, Radio Button |
Rotor (Same Item Or Form Controls), Swipe Down |
7 |
Open Combo Box |
Double-Tap |
8 |
Hear Combo Box Options: |
Drag Finger Through The List/td>
|
9 |
Activate The Link Or Button |
Double-Tap |
10 |
Next List |
Rotor, Swipe Down |
11 |
Next Graphic |
Rotor, Swipe Right |
12 |
Interact With (Go Into/Out Of) Objects (Like Iframes, Menus, Application Regions, Etc.) |
VO + Shift + Down/Up Arrow |
Text Editing:
S. No |
Actions |
Gestures |
1 |
Select/Deselect Text |
Pinch Out/In |
2 |
Copy The Last Spoken Text To The Clipboard |
Three-Finger Quadruple-Tap |
3 |
Change Case |
Three-Finger Swipe Up/Down* |
4 |
Insert Space |
Two-Finger Swipe Right* |
5 |
Backspace |
Two-Finger Swipe Left* |
Table:
S. No |
Actions |
Command |
1 |
Next Table |
Rotor, Swipe Down |
2 |
Move Up In A Column |
Swipe Up |
3 |
Move Down In A Column |
Swipe Down |
4 |
Move To The Left In A Row |
Swipe Left |
5 |
Move To The Right In A Row |
Swipe Right |
Advantages of VoiceOver:
- The layout and gestures of VoiceOver are universal across all devices making the shift from one device to another seamless.
- The curtain mode enables users to turn off the screen when the screen reader is being used to enable a more private user experience.
- Users will also be able to change the speech rate if they wish to speed things up.
- Numerous voice options with different accent options such as UK, Ireland, Australia, and South Africa.
- Users can also determine what information has to be read by the screen reader such as punctuation, emojis, hyperlinks, and so on.
Disadvantages of VoiceOver
- VoiceOver will not read any content from Microsoft Office for Mac.
- Likewise, it will also not read any content from Adobe Acrobat.
Conclusion:
So as stated earlier, knowing how to use VoiceOver across all Apple devices is very crucial for an accessibility tester. The categorized tables can serve as an effective VoiceOver keyboard shortcuts guide for macOS or as a VoiceOver gestures cheat sheet for iOS. So we hope this VoiceOver Quick Reference Guide improves your accessibility testing skills. Make sure to subscribe to our newsletter to stay up to date with such informative content.
by admin | Jan 25, 2022 | Accessibility Testing, Blog, Latest Post |
ChromeVox is an in-built screen reader developed by Google for Chromebooks. It can also be added to Chrome as an extension even if it is running on Windows or macOS. Since Windows and macOS have their own dedicated screen readers like Narrator and VoiceOver, you might not have the need to use ChromeVox. But if you are looking to test your website on a Chromebook, then knowing ChromeVox will definitely come in handy. As a leading web accessibility testing services company, we always make it a point to master all the resourceful tools for our accessibility testing projects. So we have written this guide to help you get started with accessibility testing using the ChromeVox Screen Reader and to explore all the important ChromeVox keyboard shortcuts.
There are two ways to run ChromeVox on your Chromebook.
1. You can click on ‘Options’ that can be found on the right side corner of your Chromebook and click on the accessibility symbol.
2. Or you can use the press shortcut keys Ctrl+Alt+Z to turn on ChromeVox.
ChromeVox Keyboard Shortcuts:
Once you have got ChromeVox up and running, you can use the various shortcuts to use it effectively. We have created a table of the most important ChromeVox keyboard shortcuts that you’ll need to know by categorizing them into different categories as well.
Main Content Navigation
Skimming through a page’s content is a very common activity that most of us do. So you have to test if your heading levels have been assigned properly as it will also impact regular reading as well. Once the user finds the part they want to be read out by the screen reader, they should be able to start the reading. So use the below ChromeVox keyboard shortcuts for easily testing all these aspects.
S. No |
Functions |
Shortcut Key |
1 |
Heading Navigation |
Search Bar + H |
2 |
Previous Heading |
Shift +H |
3 |
Next Level 1 Heading |
Search Bar + 1 |
4 |
Previous Level 1 Heading |
Shift + 1 |
5 |
Next Level 2 Heading |
Search Bar + 2 |
6 |
Previous Level 2 Heading |
Shift + 2 |
7 |
Next Level 3 Heading |
Search Bar + 3 |
8 |
Previous Level 3 Heading |
Shift + 3 |
9 |
Next Level 4 Heading |
Search Bar + 4 |
10 |
Previous Level 4 Heading |
Shift + 4 |
11 |
Next Level 5 Heading |
Search Bar + 5 |
12 |
Previous Level 5 Heading |
Shift + 5 |
13 |
Next Level 6 Heading |
Search Bar + 6 |
14 |
Previous Level 6 Heading |
Shift + 6 |
15 |
Landmarks |
Search Bar + Semicolon |
16 |
Pervious Landmarks |
Shift + Semicolon |
17 |
Start Reading From Current Location |
Search Bar + R |
We also all know that not all users would want their screen readers to read everything that is on the display. So it is extremely important for you to test the Skip to main content feature. So once the user hits the enter or spacebar key, the focus should move to the main content area. It should also be verified on each and every page of your site without fail.
Line by Line Navigation
Being able to skim through the content alone isn’t enough. So we also have to test if line by line and word by word navigation also works well with your content.
S. No |
Functions |
Shortcut Key |
1 |
Next Line |
Search Bar + Down Arrow |
2 |
Previous Line |
Search Bar + Up Arrow |
3 |
Next Word |
Search Bar + Ctrl + Shift + Right Arrow |
4 |
Previous Word |
Search Bar + Ctrl + Shift + Left Arrow |
Interactive Elements Navigation
The tab is the primary key when it comes to navigating through the different interactive elements in the page like links, forms, edit fields, menu items, and so on. You can access the interactive element that has the focus by pressing enter or spacebar. But if you are testing if there are any broken links or if the links have a proper anchor text, you can even navigate across just the links or even get a list of the links on the page by using the mentioned ChromeVox keyboard shortcuts.
S. No |
Functions |
Shortcut Key |
1 |
Forward Navigation Of Interactive Elements (Links, Forms, Edit Field) |
Tab |
2 |
Backward Navigation Of Interactive Elements (Links, Forms, Edit Field) |
Shift + Tab |
3 |
Next Link |
Search Bar + L |
4 |
Previous Link |
Search Bar + Shift + L |
5 |
Next Visited Link |
Search Bar + V |
6 |
Previous Visited Link |
Search Bar + Shift + V |
7 |
Show Links List |
Search Bar + Ctrl + L |
8 |
Show Form List |
Search Bar + Ctrl + F |
9 |
To Move Focus To Pop-Up And Dialog |
Alt + Shift +A |
Table Navigation
Since tables can have many rows and columns, navigation around each cell using the search bar and arrow keys could turn out to be difficult and confusing. But since we can’t leave any content on the page untested, we have specified the ChromeVox keyboard shortcuts that will help you navigate any table with ease.
S. No |
Functions |
Shortcut Key |
1 |
Show Table List |
Search Bar + Ctrl + T |
2 |
Next Table |
Search Bar + T |
3 |
Previous Table |
Search Bar + Shift +T |
4 |
First Cell In The Table |
Search Bar + Alt + Shift + Left Arrow |
5 |
Last Cell In The Table |
Search Bar + Alt + Shift + Right Arrow |
6 |
First Cell In The Current Row |
Search Bar + Alt + Shift + Ctrl + Left Arrow |
7 |
Last Cell In The Current Row |
Search Bar + Alt + Shift + Ctrl + Right Arrow |
8 |
First Cell In The Current Column |
Search Bar + Alt + Shift +Ctrl + Up Arrow |
9 |
Last Cell In The Current Column |
Search Bar + Alt + Shift + Ctrl + Down Arrow |
Multimedia Content
There is almost no page that doesn’t have images and videos making alt text, transcripts, and audio descriptions key factors to check. You can use the shortcuts to quickly navigate to all the graphic images and test if proper alt text has been used.
S. No |
Functions |
Shortcut Key |
1 |
Next Graphic Image |
Search Bar + G |
2 |
Previous Graphic Image |
Search Bar + Shift + G |
If there is a video on the webpage, keyboard playback controls must be available for the user to pause or play the content easily. Audio descriptions are important for videos that rely on visual cues to convey meaning.
Advantages of the ChromeVox Screen Reader:
Docked and full-screen Magnifier:
As a leading Accessibility Testing Company provider, we understand that Screen readers are not just for people who have total loss of vision. So you have to test your content with ChromeVox’s two types of screen magnifiers that will enable low-vision users to view and read the content of the page without any difficulties.
Of the two types, one is a full-screen magnifier and the other is a docked magnifier. Once the full-screen magnifier is enabled, the entire page is magnified with a zoom level that can be changed as per the need. So if the webpage isn’t optimized for this feature, then the content will start overlapping to create a bad user experience. Since the full screen is getting magnified, it should also be possible to navigate the content with ease at any given zoom level. So make sure to use the Ctrl + Alt + Arrow keys to test that as well.
Since not all users will require the entire page to be magnified, ChromeVox’s Docked Magnifier allows the users to magnify the part of the page where the cursor is. These are a few of the add-on features that are exclusive to the Chromebook that cannot be used in any other system. So make sure to test the content on your page and see if it is compatible with these features as well.
The ChromeVox Screen Reader Chrome Extension
Apart from these exclusive features for the Chromebook, ChromeVox can be added as an extension to Google Chrome on other platforms like Windows and Macs. Installing the ChromeVox extension is no different from installing any other Chrome extension. Though the extension does not have all the features the full version does, it surely has its own benefits as it offers some basic screen reader functionalities.
ChromeVox’s Speech Viewer
Once the ChromeVox Screen Reader has been turned on, the speech viewer will automatically be displayed on top of the screen. This is a great advantage in ChromeVox when compared to other screen readers such as NVDA that don’t have a separate speech viewer as it will overlap the web content.
Disadvantages of ChromeVox:
As you can see, the search bar key and the shift key are important when it comes to ChromeVox keyboard shortcuts.
For Example: Unlike other screen readers, pressing the H key without pressing the search bar key will not move to the heading levels.
But the major drawback in the ChromeVox Screen Reader when it comes to testing is taking screenshots as the content in the speech viewer will not be covered. So you would have to rely on videos for your bug reports. Videos for major bugs are fine, but it will be a cumbersome task to add videos even for small bugs.
The Definitive Mobile App Accessibility Testing Checklist for Android & iOS
Conclusion:
Apart from the few disadvantages, ChromeVox is a great screen reader for testing your content on a Chromebook. The unique ChromeVox Screen Reader Chrome extension might also turn out to be useful in rare scenarios. So we hope you are now clear on how you can use ChromeVox to get effective web accessibility testing done using the various ChromeVox keyboard shortcuts. If you are looking to test your content across various platforms and screen readers, there are various options such as JAWS, NVDA, Narrator, OKRA, Voice Over, and so on.
by admin | Jan 7, 2022 | Accessibility Testing, Blog, Latest Post |
A screen reader is an assistive technology that helps people with disabilities such as blindness, vision impairment, and low vision. The screen reader renders the various webpage elements like the text, buttons, and images as speech and braille output. There are various types of screen readers for different environments. As one of the leading accessibility testing companies, we make it a point to familiarize ourselves with all the top tools. And JAWS is definitely one of the best options out there. So in this JAWS Testing Tutorial, we will be exploring the important JAWS Hotkeys and have a step-by-step guide to get started with JAWS for testing purposes.
Did You Know?
JAWS was created by Ted Henter in 1989 who is a former motorcyclist who lost his eyesight due to a fatal car accident in 1978.
Why JAWS?
Jaws (Job Access With Speech) is the most popular screen-reading tool available in the market. It can be used to read the content in documents, web apps, emails, eBooks, and so on. It is available in over 10 different languages and has multilingual Eloquence & Vocalizer expressive synthesizers that enhance the overall experience. It helps a visually disabled user to read the content by just using the standard keys, has skim-reading capabilities, and has screen magnification options that make it a complete package. So, we can use JAWS without any second thoughts to ensure that the web pages have been designed according to the accessibility norms and regulations.
How to Install JAWS?
The installation process we will be covering is for a Windows machine.
- Download the latest version of JAWS from their official website.
- Open the downloaded exe file.
- Click on “YES” in the popup dialog box that appears.
- Click on the checkbox to accept the agreements and click “Install”.
- Once the installation has been completed, close the window and restart the computer when prompted.
Now that we have seen the installation process, let’s take a look at the JAWS Hotkeys you’ll need to know.
JAWS Hotkeys/Keyboard Shortcuts:
S. No |
Functions |
Shortcut Key |
1 |
Start Reading |
Insert+Down Arrow Key |
2 |
Stop Reading |
Ctrl |
3 |
Heading Navigation |
H |
4 |
Direct Heading Navigation (H1 To H6) |
1 To 6 |
5 |
Landmarks |
R |
6 |
To Go To Main Content Region |
Q |
7 |
Tables |
T |
8 |
Data In The Table |
Ctrl+Shift+Right/Left/Up/Down Arrow Key |
9 |
List |
L |
10 |
Items In A List |
I |
11 |
Previous Line |
Up Arrow |
12 |
Next Line |
Down Arrow |
13 |
Previous Word |
Left Arrow |
14 |
Next Word |
Right Arrow |
15 |
Links And Form Controls To Navigate Forward |
Tab |
16 |
Links And Form Controls To Navigate Backward |
Shift + Tab |
17 |
To Activate Links And Form Controls |
Enter/Space |
18 |
Select From A Group Of Radio Buttons |
Up/Down Arrow Key |
19 |
To Submit A Form |
Enter |
20 |
To View The History Of Speech Viewer |
Insert+Space+H |
21 |
Page Refresh |
F5/Shift+F5 |
22 |
Select And Deselect Checkboxes |
Space |
23 |
Go To Graphic |
G |
24 |
Unvisited Link |
U |
25 |
Visited Link |
V |
We have listed only the most important JAWS Hotkeys you’ll be needing here. If you can’t find a JAWS keyboard shortcut combination you are looking for or want to explore all the JAWS Hotkeys, kindly use this file.
How to perform JAWS testing?
To test a website using JAWS, you have to open a browser and navigate to the website you’d like to test, and start using JAWS. Though it sounds simple, you might feel lost and not know what to do to get conclusive results. Thanks to our years of experience in providing the best web accessibility testing services to all our clients, we have created this list that will help you get started with JAWS testing.
Navigation
Being able to access the entire page and understand the content is one of the most basic actions that every user must be able to do. You can check that by navigating the page using the TAB key to ensure that all interactive elements receive tab focus. Also, verify if non-interactive elements don’t receive tab focus. Check if the focus order is from left to right or right to left.
Just like how we try to skim through the article by seeing the headings to get an idea, people using JAWS should also be able to do that. Since the screen readers can’t convey the visual representation, make sure to check the heading tag’s flow as if it is not in order from H1 to H6.
Once you’ve checked that, move down the page using the down arrow key and observe if all the content is read properly in a meaningful sequence without any repetitions or sections getting skipped. You also have to make sure that everything works well when going back to the previous lines using the up arrow key.
Multimedia Content Alternatives
Websites don’t shy away from using various multimedia content like photos, videos, and so on to make an impact. As a first step, verify if all the images receive focus. If they do, check the alt text (alternative text) and see if it is relevant and if it describes the image well enough.
Videos that have voiceovers or dialogues will not be much of an issue as it can be understood by listening to the audio. But if the video has burnt in the text without any voice-over, then you have to make sure to add a transcript that can be read by JAWS for the user to understand. Likewise, if the video is entirely visual, you can add an audio description to make it possible for the user to get at least an idea. It is recommended to not have videos auto-play when the site is opened. So it must be possible to control the playback of the videos using your keyboard.
Videos that have voiceovers or dialogues will cause much of an issue as it can be understood by listening to the audio. But if the video has burnt in the text without any voice-over, you have to make sure to add a transcript that can be read by JAWS for the user to understand. Likewise, if the video is entirely reliant on the visual, you can add an audio description to make it possible for the user to get at least an idea. It is recommended to not have videos auto-play when the site is opened. So it must be possible to control the playback of the videos using your keyboard.
Other Content Types
Internal and external links are very common on all web pages. So ensure that the change of context is clear and avoid vague lines like ‘Click Here’ or ‘Read More’ out of nowhere.
If there are any lists on the webpage, then it will be read properly only if the content has been fed as an ordered or unordered list. Likewise, if there are any tables, you should check if JAWS reads all the content with the respective rows and columns using standard keys.
Check if the table row and column headers are read out for each table cell to make it easy to understand. Verify if all form fields, links, and buttons are accessible when using the space/enter key.
Avoid Visual Reliance
It’s a common practice to make certain words, phrases, or even lines appear bold to emphasize their importance. But since they are only visual cues, they will not be picked up by the screen reader. So make sure to use ‘strong’ and ’em’ tags when needed. The same applies to any color variations used for the same purpose.
Yes, Captcha is an important feature in a website. But that doesn’t mean you have to use only visual options as it will not be possible for JAWS to pick it up.
Though flashy signs and calls to action are of the past and can no longer be found on many websites, it is still important to check for them. JAWS will have a tough time if an image with the words download is hovering over a vague hyperlink text like ‘Click Here’.
General JAWS Testing Checks
- Make sure if your page has a bypass block, the main content, and a landmark region.
- Verify if all the ARIA attributes have been implemented properly.
- Ensure that there are no black hat SEO techniques such as using hidden text to boost ranking as it will disrupt JAWS.
- Check if all the content is in a single language and if there are any different languages used, do mention it in your code to avoid confusion. It is also a good practice to use a language attribute to mention the language.
Conclusion
We hope you have found this JAWS Testing Tutorial and the JAWS Hotkeys to be helpful and now have an idea of how to test your website’s accessibility by using JAWS. You can even check out our blog that explains how you can easily test your website for accessibility. Though those easy checks will not be enough, it is always good to get started as you yield the twin benefits of fulfilling a person with disabilities their right to information and reaching a wider audience.
by admin | Dec 22, 2021 | Accessibility Testing, Blog, Latest Post |
Performing comprehensive web accessibility testing for any website is no easy task. There are so many guidelines to be followed to become compliant with standards like WCAG. But at the same time, you have to at least make sure to make your website is accessible on a basic level. So we have created this basic Website Accessibility Testing Checklist with reference to the easy checks issued by W3C. Though they are not definitive methods, it’s definitely a great place to start and evolve from that point onwards.
A Basic Website Accessibility Testing Checklist
- Page Title and Content Headings
- Alt Text and Multimedia Alternatives
- Moving and Flashing Content
- Text Size and Contrast ratio
- Keyboard access
Page Title and Content Headings
Since Page Titles appear in search results, browser tabs, bookmarks, and so on, make sure to make it clear and unique. See if the main content is properly visible in all these places and use a screen reader to see if it read properly. Unclear page titles will make it very hard to navigate across different pages.
Using headings in a random order will make it hard for the user to understand the structure of your content. So in addition to confusing regular readers, it will also confuse the screen readers and cause them not to function properly.
Alt Text and Multimedia Alternatives
Alt Text and Multimedia Alternatives are key points in our Website Accessibility Testing Checklist as websites are now filled with a lot of visual content. Visually impaired users won’t be able to see any graphical content that you use on your webpage. So if you are adding an image, make sure to add appropriate alt text to the images as that will help the user understand the purpose of the image using words. Similarly, make sure to add closed captions and transcripts for videos based on the type. The media shouldn’t always start to play as soon as the page opens. Even if it does, then make sure to make it easy to pause it by adding keyboard controls for the playback.
Moving and Flashing Content
Carousel posts on websites have become a very commonly used feature. Flashing contents are instrumental in helping certain content stand out from the rest. But you have to make sure that the content doesn’t flash more than 3 times every second as it might cause seizures. Moving content and carousel content shouldn’t be too rapid that it becomes incomprehensible for your users. Similar to the media controls, the user must also be able to control the moving content to prevent the features from becoming a distraction.
Text Size and Contrast ratio
It is always a good idea to keep your text size fairly big as content with small text sizes rarely works. Even if you keep the text size big enough and fail to use proper text and background colors, the text will become hard to read. You should also test it from the perspective of a person with color blindness to see there are no contrast issues. There is even a tool called the Color Contrast Analyzer that you could use to check if the contrast ratio will pass the required standards. Few people will be able to read the content only when the text is enlarged beyond the regular size. So make sure there is enough spacing in places you add the text and not cram in too much content. Keep it simple, yet catchy.
Keyboard access
We have added this factor to our Website Accessibility Testing Checklist as it is one of the most overlooked aspects. Not everybody will be able to navigate through your website using a mouse. So make sure it is possible to navigate to the different elements like drop-down lists, text fields, menus, and so on. The labels used for text boxes should convey the requirement and be on the left side of the box for left-to-right languages. Make sure to highlight mandatory fields with the asterisks (*) sign and not just color to differentiate it.
Why is Accessibility Testing Mandatory?
So this is a basic Website Accessibility Testing Checklist that you can concentrate on, to begin with. But they are in no way sufficient to get a proper standardization as your website might pass all these checks and still have major accessibility issues. If your website isn’t accessible, there are possibilities of getting sued based on the part of the world you are in. Why go through all the hassle and be at risk when you can simply outsource the web accessibility testing to one of the best web accessibility testing service providers like us? Making your product accessible is no longer a choice you can ignore as it is an important part of making your product available to a wider audience and enhancing the product’s overall usability.
by admin | Dec 20, 2021 | Accessibility Testing, Blog, Latest Post |
It is not a simple yes or no question as it depends on a lot of factors like the core purpose of the website, who runs it, and the country it is used in. Though the Web Content Accessibility Guidelines (WCAG) are the universally accepted standards to be followed on the web, it is not a global law followed in every country. Countries like the United States of America do have accessibility-related laws, but there are no dedicated laws when it comes to the web. So in this blog, we will explore the various Web Accessibility Laws around the world to see how WCAG non-compliance can end up becoming a punishable offense.
The Web Accessibility Laws in Different Regions
So if you are located in the U.S and if the website belongs to a federal agency or their contractors, those websites must comply with WCAG 2.0. But if the website belongs to a private business, the website definitely has to be accessible as per the ADA. The Americans with Disabilities Act (ADA) requires every place of public accommodation to be accessible in terms of infrastructure (Wheel Chair accessible Entry elevators, and so on). Though websites do come under this category as a place of public accommodation as the users do visit the website to obtain information, make a purchase, and perform such activities, there are no defined guidelines or standards that the websites have to adhere to.
Likewise, if you are in countries like Canada, New Zealand, or Australia, only government sites have to meet the WCAG guidelines. There are no defined standards for public sites with a few exceptions in certain areas. Argentina requires their public sites to be compliant with WCAG 1.0 and Ecuador’s public sites have to comply with WCAG 2.0. The European Union is where we can find the best Accessibility standards. They have created the Web Accessibility Directive which is in many ways similar to WCAG 2.0. It even has a few additional requirements where users should be able to report such issues, and so on. Though it was initially launched with only government sites to be compliant in 2016, by 2018 even public websites have been instructed to meet the standards.
There are also numerous countries that do not have any prominent Web Accessibility Laws. But if you are running a business website, it is always better to have a site that is accessible as there is always a possibility of getting sued by the consumer.
The Case against Dominos
Companies have been sued in the past for having inaccessible websites and apps. For example, Domino’s was sued by a visually impaired man when he was unable to order pizza from their website despite using a Screen Reader. Despite the case being very strong on the plaintiff’s side, it took more than 3 years for the judgment to come through. The court ruled Dominos’ website to be inaccessible and ordered them to meet the compliance. But the real question here is why would Dominos fight the case instead of just making their website accessible.
The Business Angle
Any company that doesn’t consider people with disabilities as viable customers are missing out on a lot of business. According to a report by Forbes, 1 in every 4 Americans have some form of disability, and about 57 million Americans have a disability that hinders their ability to view and use online services. In the digital age we live in, it wouldn’t be wise to leave out such a huge part of the population assuming it is not essential. But beyond the business aspect
Global Scale
So it is evident that the Web Accessibility Laws are different in different areas of the world. But what if you have a website that functions on a global scale? The only solution here would be to have your website meet the highest standards of accessibility so that you wouldn’t have to worry about any disputes. You could achieve this goal by outsourcing the task to one of the best web accessibility testing service providers like us. If we do take a look at it beyond the business aspect, fulfilling the rights of people with disabilities should be a moral responsibility that shouldn’t be overlooked.