If no visible anchor text is present, the alt should convey the purpose of the link. For e.g <a href="http://www.unhcr.org/innovation/10-infographics-that-show-the-insane-scale-of-the-global-displacement-crisis"><img class="grow" src="refugeecrisis.jpg"></a> Should become <a href="http://www.unhcr.org/innovation/10-infographics-that-show-the-insane-scale-of-the-global-displacement-crisis"><img class="grow" src="refugeecrisis.jpg" alt="Photo showing refugees walking on a railway track"></a> You should include alt tags to your images to fix this. See: 1. https://dequeuniversity.com/guide/fireeyes/index-issues/issue-details?i=SC244LNK&v=5.2 2. https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#ax_text_04
If no visible anchor text is present, the alt should convey the purpose of the link.
For e.g
Should become
You should include alt tags to your images to fix this.
See: