Lighthouse: SEO Score not affected by img without alt attribute

Created on 18 Apr 2019  路  2Comments  路  Source: GoogleChrome/lighthouse

Provide the steps to reproduce

  1. Run LH on https://www.w3schools.com/code/tryit.asp?filename=G37S02M71XEE . This page contains this code
<!DOCTYPE html>
<html>
<body>

<p>
An image that is a link:
<a href="https://www.w3schools.com">
<img src="smiley.gif" width="42" height="42" border="0">
</a>
</p>

</body>
</html>
  1. Search for SEO score
  2. No warning about the missing alt attribute

What is the current behavior?

LH say nothing about img without alt tag

What is the expected behavior?

LH should warn about img without alt tag . Google in this document https://support.google.com/webmasters/answer/114016?hl=en says to use descriptive alt text

Environment Information

  • Affected Channels: DevTools
  • Lighthouse version: 4.0.0
  • Node.js version: 6.4.1
  • Operating System: updated windows 10
picture andreabisello
👍2

Most helpful comment

Yes, very good catch! From an SEO standpoint, your images should have an alt attribute. Thanks for flagging this, @andreabisello

picture AVGP on 18 Apr 2019
❤3

All 2 comments

Thanks @andreabisello good catch! We flag this in accessibility but not SEO.

cc @rviscomi / @AVGP for their blessing

patrickhulce picture patrickhulce on 18 Apr 2019

Yes, very good catch! From an SEO standpoint, your images should have an alt attribute. Thanks for flagging this, @andreabisello

AVGP picture AVGP on 18 Apr 2019
❤3
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