Look alike unicode chars Screen reader compatibility

Last updated: September 5, 2016

Expected Result: causes problems in some screen readers

Actual Result: causes problems in 28 screen reader / browser combinations

For expected failures, the results show which AT combos the failures affect. Results are recorded from the user's viewpoint, so describe the user impact of authoring errors.

WCAG Failure: F71

Code used for this test:

<pre>
    ϲоοk
    </pre>

Change History

Last updated: September 5, 2016

Screen readerBrowserModeNotesWhat the user hears
Fail NVDA 2016.2FF48 ReadingLook-alike character codes read out instead of word. Speak Letter 3F2, omicron K
Fail NVDA 2016.2IE11 ReadingLook-alike character codes read out instead of word. Speak Letter 3F2, omicron K
Fail NVDA 2015.2FF41 ReadingLook-alike character codes read out instead of word. Speak Letter 3F2, omicron K
Fail NVDA 2015.2IE11 ReadingLook-alike character codes read out instead of word. Speak Letter 3F2, omicron K
Fail NVDA 2014.1FF29 ReadingLook-alike character codes read out instead of word. Speak Letter 43, letter F2, omicron K
Fail NVDA 2014.1IE11 ReadingLook-alike character codes read out instead of word. Speak Letter 43, letter F2, omicron K
Fail NVDA 2012.1FF29 ReadingLook-alike character codes read out instead of word. Speak Letter 43, letter F2, omicron K
Fail NVDA 2012.1IE11 ReadingLook-alike character codes read out instead of word. Speak Letter 43, letter F2, omicron K
Fail JAWS 17.0.2619FF48 ReadingMost look-alike characters ignored. Speak Omichron K
Fail JAWS 17.0.2619IE11 ReadingMost look-alike characters ignored. Speak Omichron K
Fail JAWS 16.0.4350FF41 ReadingMost look-alike characters ignored. Speak Omichron K
Fail JAWS 16.0.4350IE11 ReadingMost look-alike characters ignored. Speak Omichron K
Fail JAWS 15.0.9023FF29 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail JAWS 15.0.9023IE11 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail JAWS 14.0.9002FF29 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail JAWS 14.0.9002IE11 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail JAWS 13.0.852FF29 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail JAWS 13.0.852IE11 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail WindowEyes 9.2IE11 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail WindowEyes 8.4IE11 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail VoiceOver OSX 10.11Safari 9.1.2 ReadingLook-alike characters skipped or pronounced using rules of language character is from. Speak Omichron
Fail VoiceOver OSX 10.10Safari 9.0.1 ReadingLook-alike characters skipped or pronounced using rules of language character is from. Speak Omichron
Fail VoiceOver OSX 10.9Safari 7.0.3 ReadingLook-alike characters skipped or pronounced using rules of language character is from. Speak Omichron
Fail VoiceOver iOS 9.1Safari iOS 9.1TouchLook-alike characters skipped completely.
Fail VoiceOver iOS 8.4Safari iOS 8.4TouchLook-alike characters skipped completely.
Fail VoiceOver iOS 7.1Safari iOS 7.1TouchLook-alike characters skipped or pronounced using rules of language character is from. Speak Ooh omichron kay
Fail Dolphin SR 15.05IE11 ReadingLook-alike characters ignored, only last letter of word read. Speak K
Fail SaToGo 3.4.96.0IE11 ReadingLook-alike characters ignored, only last letter of word read. Speak K

SortSite rules: AccWcag2-F71-1

Test notes

The threshold for inclusion in these results is 5% usage in the most recent WebAIM screen reader survey. Chrome and Android still fall below the 5% threshold.

All tests were carried out with screen reader factory settings. JAWS in particular has a wide variety of settings controlling exactly what gets spoken.

Screen readers allow users to interact in different modes, and can produce very different results in each mode. The modes used in these tests are:

In the «What the user hears» column: