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Developer priorities by diagnostic Portsmouth City Council

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 08 Jul 2020 at 16:27 looking at https://www.portsmouth.gov.uk/.


  • 125 pages

  • 23 pages in 10 documents

  • 5 documents

  • None found

  • None found

Five slowest URLs by time to first byte



Top five accessibility issues

Occurrences What We Checked
370 F17 : Failure of Success Criterion 1.3.1 and 4.1.1 due to insufficient information in DOM to determine one-to-one relationships (e.g., between labels with same id) in HTML
370 F77 : Failure of Success Criterion 4.1.1 due to duplicate values of type ID
370 H93 : Ensuring that id attributes are unique on a Web page
275 G141 : Organizing a page using headings
156 H30 : Providing link text that describes the purpose of a link for anchor elements

Top five code quality issues

Occurrences What We Checked
370 Invalid attribute value
119 A "301 Moved Permanently" response was received
77 A start tag is missing required attributes
2 Image file size or dimensions do not match
2 URL contains misleading description

Top five functions / links issues

Occurrences What We Checked
11 Timeout downloading file
6 File not found
3 Access is denied
2 Exception while downloading file
1 URL scheme was unrecognised