How to define HTML Validator and services provided by HTML Validator

[Aldous]

Can anyone please define me what are the HTML Validator, and the services provided by the HTML Validator, this is because I had seen the HTML validators in some blogs but at that time I was totally unaware about what is HTML Validator. But it is now important to know more about it.

[Mecurtis]

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. Validome allows Web Publishers to check their syntax with a reliable, high-speed validation service, in accordance to current official Standards.The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing. CSE HTML Validator for Windows helps you eliminate website problems that cause visitors to abandon websites.

[StoaVio]

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. Validating your site code mostly consistent display for your sites with many browsers (which display the one and same - unvalid - page very differently) Allows validation of XML 1.0 documents according to W3C specifications and making your site more readable for different user agents helping exposing and repairing barriers to accessibility, The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing.It is also possible to ask HTML Validator to propose a corrected version of the page in HTML or convert it to XHTML

[Aabhas]

The WDG HTML Validator is similar in many ways, the validation is done automatically and just by looking the page. The two validators differ significantly from other checking tools such as Weblint and CSE 3310 HTML Validator. (Despite its name, the latter is not a true "validator.") Just press CTRL+U (page view) and all yours errors are there.It is done based on the page source and without accessing a second time the web server to get the HTML source.