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img with null alt Screen reader compatibility

HTML WCAG
Nov 26, 2024

Expected Result: works in a screen reader

Actual Result: works in all tested screen readers

WCAG Technique: H67

Code used for this test:


		<img src='1234.png' alt=''>

Reliability Trend

This graph shows reliability over time for this code in NVDA, JAWS and Voiceover. Other screen readers don't have enough historical data yet to plot trends.

100%80%60%40%20%0%2014100%2015100%2016100%2017100%2018100%2019100%2020100%2021100%2022100%2023100%2024100%

Change History

Last updated: November 26, 2024

  • Good NVDA with Chrome Stable - OK from NVDA 2018.4 to NVDA 2024.4
  • Good NVDA with IE Stable - OK from NVDA 2012.3 to NVDA 2019.2
  • Good NVDA with FF Stable - OK from NVDA 2012.1 to NVDA 2024.4
  • Good JAWS with Chrome Stable - OK from JAWS 2018.1811.2 to JAWS 2024.2409.2
  • Good JAWS with IE Stable - OK from JAWS 13.0.852 to JAWS 2019.1912.1
  • Good JAWS with FF Stable - OK from JAWS 13.0.852 to JAWS 2024.2409.2
  • Good VoiceOver macOS Stable - OK from VoiceOver macOS 10.9 to VoiceOver macOS 14.6
  • Good VoiceOver iOS Stable - OK from VoiceOver iOS 7.1 to VoiceOver iOS 17.7
  • Good WindowEyes with IE Stable - OK from WindowEyes 8.4 to WindowEyes 9.2
  • Good Dolphin with IE OK in Dolphin SR 15.05
  • Good SaToGo with IE OK in SaToGo 3.4.96.0
Screen readerBrowserModeNotesWhat the user hears
OK NVDA 2024.4Chrome 131 Reading Ignored as expected
OK NVDA 2024.4FF 128 Reading Ignored as expected
OK NVDA 2024.4Edge 131 Reading Ignored as expected
OK NVDA 2023.3Chrome 120 Reading Ignored as expected
OK NVDA 2023.3FF 115 Reading Ignored as expected
OK NVDA 2023.3Edge 120 Reading Ignored as expected
OK NVDA 2022.2Chrome 105 Reading Ignored as expected
OK NVDA 2022.2FF 102 Reading Ignored as expected
OK NVDA 2022.2Edge 105 Reading Ignored as expected
OK NVDA 2021.2Chrome 94 Reading Ignored as expected
OK NVDA 2021.2FF 91 Reading Ignored as expected
OK NVDA 2021.2Edge 94 Reading Ignored as expected
OK NVDA 2020.2Chrome 86 Reading Ignored as expected
OK NVDA 2020.2FF 78 Reading Ignored as expected
OK NVDA 2020.2Edge 92 Reading Ignored as expected
OK NVDA 2019.2Chrome 79 Reading Ignored as expected
OK NVDA 2019.2FF 68 Reading Ignored as expected
OK NVDA 2019.2IE11 Reading Ignored as expected
OK NVDA 2018.4Chrome 73 Reading Ignored as expected
OK NVDA 2018.4FF 60 Reading Ignored as expected
OK NVDA 2018.4IE11 Reading Ignored as expected
OK NVDA 2017.3FF 60 Reading Ignored as expected
OK NVDA 2017.3IE11 Reading Ignored as expected
OK NVDA 2016.2FF 48 Reading Ignored as expected
OK NVDA 2016.2IE11 Reading Ignored as expected
OK NVDA 2015.2FF 40 Reading Ignored as expected
OK NVDA 2015.2IE11 Reading Ignored as expected
OK NVDA 2014.1FF 28 Reading Ignored as expected Blank
OK NVDA 2014.1IE11 Reading Ignored as expected
OK NVDA 2012.1FF 28 Reading Ignored as expected Blank
OK NVDA 2012.3IE11 Reading Ignored as expected
OK JAWS 2024.2409.2Chrome 131 Reading Ignored as expected
OK JAWS 2024.2409.2FF 128 Reading Ignored as expected
OK JAWS 2024.2409.2Edge 131 Reading Ignored as expected
OK JAWS 2023.2311.34Chrome 120 Reading Ignored as expected
OK JAWS 2023.2311.34FF 115 Reading Ignored as expected
OK JAWS 2023.2311.34Edge 120 Reading Ignored as expected
OK JAWS 2022.2207.25Chrome 105 Reading Ignored as expected
OK JAWS 2022.2207.25FF 102 Reading Ignored as expected
OK JAWS 2022.2207.25Edge 105 Reading Ignored as expected
OK JAWS 2021.2107.12Chrome 94 Reading Ignored as expected
OK JAWS 2021.2107.12FF 91 Reading Ignored as expected
OK JAWS 2021.2107.12Edge 94 Reading Ignored as expected
OK JAWS 2020.2008.24Chrome 86 Reading Ignored as expected
OK JAWS 2020.2008.24FF 78 Reading Ignored as expected
OK JAWS 2020.2008.24Edge 92 Reading Ignored as expected
OK JAWS 2019.1912.1Chrome 79 Reading Ignored as expected
OK JAWS 2019.1912.1FF 68 Reading Ignored as expected
OK JAWS 2019.1912.1IE11 Reading Ignored as expected
OK JAWS 2018.1811.2Chrome 73 Reading Ignored as expected
OK JAWS 2018.1811.2FF 60 Reading Ignored as expected
OK JAWS 2018.1811.2IE11 Reading Ignored as expected
OK JAWS 18.0.5038FF 52 Reading Ignored as expected
OK JAWS 18.0.5038IE11 Reading Ignored as expected
OK JAWS 17.0.2619FF 48 Reading Ignored as expected
OK JAWS 17.0.2619IE11 Reading Ignored as expected
OK JAWS 16.0.4350FF 40 Reading Ignored as expected
OK JAWS 16.0.4350IE11 Reading Ignored as expected
OK JAWS 15.0.9023FF 29 Reading Ignored as expected
OK JAWS 15.0.9023IE11 Reading Ignored as expected
OK JAWS 14.0.9002FF 29 Reading Ignored as expected
OK JAWS 14.0.9002IE11 Reading Ignored as expected
OK JAWS 13.0.852FF 28 Reading Ignored as expected
OK JAWS 13.0.852IE11 Reading Ignored as expected
OK WindowEyes 9.2IE11 Reading Ignored as expected
OK WindowEyes 8.4IE11 Reading Ignored as expected
OK VoiceOver macOS 14.6Safari 17.6 Reading Ignored as expected
OK VoiceOver macOS 13.6Safari 16.6 Reading Ignored as expected
OK VoiceOver macOS 12.5Safari 15.6 Reading Ignored as expected
OK VoiceOver macOS 11.5Safari 15.0 Reading Ignored as expected
OK VoiceOver macOS 10.15Safari 14.1 Reading Ignored as expected
OK VoiceOver macOS 10.14Safari 13.0 Reading Ignored as expected
OK VoiceOver macOS 10.13Safari 12.1 Reading Ignored as expected
OK VoiceOver macOS 10.12Safari 10.1.2 Reading Ignored as expected
OK VoiceOver macOS 10.11Safari 9.1.2 Reading Ignored as expected
OK VoiceOver macOS 10.10Safari 8.0.6 Reading Ignored as expected
OK VoiceOver macOS 10.9Safari 7.0.3 Reading Ignored as expected
OK VoiceOver iOS 17.7Safari iOS 17.7TouchIgnored as expected
OK VoiceOver iOS 16.6Safari iOS 16.6TouchIgnored as expected
OK VoiceOver iOS 15.6Safari iOS 15.6TouchIgnored as expected
OK VoiceOver iOS 14.7Safari iOS 14.7TouchIgnored as expected
OK VoiceOver iOS 13.3Safari iOS 13.3TouchIgnored as expected
OK VoiceOver iOS 12.4Safari iOS 12.4TouchIgnored as expected
OK VoiceOver iOS 11.4Safari iOS 11.4TouchIgnored as expected
OK VoiceOver iOS 10.3Safari iOS 10.3TouchIgnored as expected
OK VoiceOver iOS 9.1Safari iOS 9.1TouchIgnored as expected
OK VoiceOver iOS 8.4Safari iOS 8.4TouchIgnored as expected
OK VoiceOver iOS 7.1Safari iOS 7.1TouchIgnored as expected
OK Dolphin SR 15.05IE11 Reading Ignored as expected
OK SaToGo 3.4.96.0IE11 Reading Ignored as expected

Test notes

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:

  • Reading Content read using the “read next” command in a screen reader
  • Tabbing Content read using the “tab” key in a screen reader
  • Heading Content read using the “next heading” key in a screen reader
  • Touch Content read when touching an area of screen on a mobile device

In the “What the user hears” column:

  • Commas represent short pauses in screen reader voicing
  • Full Stops represent places where voicing stops, and the “read next” or “tab” or “next heading” command is pressed again
  • Ellipsis … represent a long pause in voicing
  • (Brackets) represent voicing that requires a keystroke to hear