HTML Validation
Posted: Sun Jan 26, 2025 3:25 am
It's surprising how in 2023, 0 out of 100 websites have 0 HTML validation errors. Only Adobe, Speedtest, and Spotify were very close to validation, with 1 error each. And 14 more had a reasonable number of errors, below 10. But 37 of these websites are far from meeting the specifications, with 100 or more errors. The average number of HTML errors is 132.14.
CSS Validation
The W3C CSS validator is in need of updating as there effective venezuela mobile numbers list appear to be many false positives and probably some false negatives, raising concerns that the results are no longer practically useful. CSS validation is not as critical as HTML validation, but it is important to have a reliable CSS validator. 12 out of 94 websites tested have 0 CSS conformance errors. 34 were close to conformance, with an error count of less than 10. 7 were far off with 100 or more errors, and one site contained over 1000 errors. The average number of CSS errors is 46.79.
HTML and CSS validation over time
Compared to the analysis by Jens Oliver from Meiert.com, a considerable increase in HTML and also CSS validation errors can be observed:
Conclusion
The goal of organizations like W3C is “To make the Web work, the World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.”. Standardization is undoubtedly key to a robust web ecosystem that allows scaling and guarantees accessibility, for example W3C’s WCAG. But as we can see in the analysis, good practices are being neglected or standards are not kept up to date, it is difficult to draw clear conclusions.
CSS Validation
The W3C CSS validator is in need of updating as there effective venezuela mobile numbers list appear to be many false positives and probably some false negatives, raising concerns that the results are no longer practically useful. CSS validation is not as critical as HTML validation, but it is important to have a reliable CSS validator. 12 out of 94 websites tested have 0 CSS conformance errors. 34 were close to conformance, with an error count of less than 10. 7 were far off with 100 or more errors, and one site contained over 1000 errors. The average number of CSS errors is 46.79.
HTML and CSS validation over time
Compared to the analysis by Jens Oliver from Meiert.com, a considerable increase in HTML and also CSS validation errors can be observed:
Conclusion
The goal of organizations like W3C is “To make the Web work, the World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.”. Standardization is undoubtedly key to a robust web ecosystem that allows scaling and guarantees accessibility, for example W3C’s WCAG. But as we can see in the analysis, good practices are being neglected or standards are not kept up to date, it is difficult to draw clear conclusions.