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Site Report

This tab shows pages that do not comply with W3C standards.

StatusSummary
FailureW3C HTML/XHTML Validation - Some pages fail validation.
SuccessW3C CSS Validation - All pages valid.
SuccessW3C Deprecated Features - No issues found.
PriorityDescription and URLGuideline and Line#Count

Priority 2

1 issues on 1 pages

Very ImportantSection lacks heading. Consider using h2-h6 elements to add identifying headings to all sections. HTML5 1 pages
https://nodejs.org/en/black-lives-matter/Line 169 371 388 424 456

Informative

These messages are for information only and do not indicate errors

InformationProperty or at-rule is vendor specific. CSS Validation 1 pages
Properties and at-rules prefixed by a dash or underscore, the zoom property and the expression() function are vendor specific and only work on one browser engine.
-webkit-text-stroke-color -webkit-text-stroke-color -webkit-text-stroke-color -webkit-text-stroke-color
https://nodejs.org/en/black-lives-matter/
Line 156 156 208 208
Expand all 2 issues