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Developer priorities by diagnostic The Royal Society

Developer priorities allow you to review the important aspects of your assessment from a technical view point. Typically, these priorities relate to changes that cannot be addressed by content editors easily.

Assessment completed on 01 Jan 2023 at 11:05 looking at https://royalsociety.org/.


  • 125 pages

  • 190 pages in 10 documents

  • 3 documents

  • None found

  • None found

Five slowest URLs by time to first byte



Top five accessibility issues

Occurrences What We Checked
573 G91 : Providing link text that describes the purpose of a link
550 F65 : Failure of Success Criterion 1.1.1 due to omitting the alt attribute on img elements, area elements, and input elements of type "image"
550 H37 : Using alt attributes on img elements
550 G196 : Using a text alternative on one item within a group of images that describes all items in the group
550 G100 : Providing a short text alternative which is the accepted name or a descriptive name of the non-text content

Top five code quality issues

Occurrences What We Checked
999+ A "301 Moved Permanently" response was received
107 A redundant close tag was found
33 Invalid attribute name
16 Invalid attribute value
3 A start tag is missing required attributes

Top five functions / links issues

Occurrences What We Checked
22 File not found
17 Image file has incorrect type
11 Error status code received from web server
4 Host not found in DNS
3 Timeout downloading file