I assume most of you guys are aware there’s a service called “Markup Validation Service”. If you develop Websites it’s a good idea you validate them before publishing to make sure the conform the Specifications that exit for HTML/XHTML or even CSS.
If you wonder what validation is all about you might want to check the W3C Page on “Validation Basics”.
Because i do this for all HTML/XTHML/CSS Projects i do, i was curious if others do to or to be more specific, if major Sites do. So i did some quick checks (just the Markups, not the CSS):
1. Apple.com (Doctype HTML 4.01 Transitional)
2. Amazon.com (Doctype HTML 4.01 Transitional)
3. Dell.com (Doctype HTML 4.0 Transitional (WTF?!))
4. Digg.com (Doctype XHTML 1.0 Transitional)
5. Ebay.com (Doctype HTML 4.01 Transitional)
6. Facebook.com (XHTML 1.0 Strict)
7. Flickr.com (Doctype HTML 4.01 Strict)
8. Google.com (Doctype HTML 4.01 Transitional)
9. Microsoft.com (Doctype XHTML 1.0 Transitional)
10. Mozilla.org (Doctype HTML 4.01 Strict)
11. Myspace.com (Doctype XHTML 1.0 Transitional)
12. Paypal.com (Doctype HTML 4.01 Transitional)
13. Youtube.com (Doctype HTML 4.01 Transitional)
14. Wikipedia.org (Doctype XHTML 1.0 Strict)
15. Wordpress.org (Doctype XHTML 1.0 Transitional)
16. Yahoo.com (Doctype HTML 4.01 Transitional)
Yes, lot’s of Sites do validate, but obviously not much of the Major ones. Sites that do validate for example: Microformats.org, Zeldman.com and others.
Mostly a CMS or even better the Content maintained by Users produces a lot of Errors that haven’t been there when the Site was launched. Other Errors might be because of Scripts used for Adverts or additional Features.
Tags: accessability, clean, html, majorsites, tidy, validate, xhtml
Posted in web |