WC3 XHTML and CSS Validation Tools Rule

I’ve seen too many websites with a stunning design and terrible code. So what does it matter if a beautiful new website is standards compliant anyway? The viewer doesn’t see the code directly. Here’s a few things to consider:

  1. W3C valid XHTML will load faster, because the browser doesn’t have to fix errors (which most don’t do effectively or expediently)
  2. Standards-compliant XHTML can be parsed faster by search engine spiders, and can help search visibility by decreasing extraneous and duplicate code
  3. Valid CSS will be much more likely to be compatible across browsers, and can eliminate the need for clumsy workarounds that require more code or browser-specific style sheets and javaScript
  4. Staying standards-compliant improves the scalability of your site, especially if you use multiple vendors to create content over time

Certainly, there are situations when it’s not possible to stay 100% compliant, and I’m not advocating that every single minute issue needs to be fixed in every circumstance, that could be a big waste of time. I’m just saying that the tools are out there, we might as well start using them:
W3C Markup Validation

W3C CSS Validation

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