screenshot 1.4

Developer priorities by diagnostic Blokker Holding

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 10 Jan 2021 at 07:36 looking at http://www.blokker.nl/.


  • 125 pages

  • 21 pages in 6 documents

  • None found

  • None found

  • None found

Five slowest URLs by time to first byte



Top five accessibility issues

Occurrences What We Checked
999+ 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
999+ H93 : Ensuring that id attributes are unique on a Web page
999+ F77 : Failure of Success Criterion 4.1.1 due to duplicate values of type ID
732 H30 : Providing link text that describes the purpose of a link for anchor elements
498 G131 : Providing descriptive labels

Top five code quality issues

Occurrences What We Checked
999+ Invalid attribute value
999+ Invalid attribute name
48 A "301 Moved Permanently" response was received
11 A start or end tag was found which was unrecognised
4 Fragment identifier not found

Top five functions / links issues

Occurrences What We Checked
89 Timeout downloading file
52 File not found
4 Error status code received from web server
1 Web server attempted to set invalid cookie
0 Access is denied