HTML Validators

Following are links to several online HTML validation services. After giving the URL to a page in your Web site, these programs will scan your HTML and report back any problems it finds in the structure or syntax of the page. Some will even report on links to external resources (pages or files) that appear to be no longer valid.

If your web page is not loading properly (i.e. if parts of your page are not showing up, or you're seeing HTML tags showing up in your pages instead of being interpreted by the browser) these are valuable tools for tracking down the causes of such problems.

NOTE: You will not want to use a custom domain name when supplying your URL to these validation services. You will want to enter your URL in the form of http://webcom.com/~webcom/userid/filename.html, and not http://www.yourdomain.com/filename.html.

HTML Validators

• W3C HTML Validation Service
• Doctor HTML
• Net Mechanic
• WDG HTML Validator
• Weblint Gateways
• WWWeblint

Other Validators

• BrowserCaps   Resource on the capabilities of web browsers.
• URL Minder   (monitor the validity of embedded hotlinks).

Using Netscape Navigator as a Validator

When using the Windows version of Netscape Navigator 2.0 or later, selecting "View Source" from the View pull-down menu will show you the HTML scripting for the current page. In most cases common syntax errors, such as missing quotes or brackets, will be shown in blinking text.

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