The validity of the HTML code is a very important aspect of web site promotion, but many webmasters overlooked it.
Do you know what is valid HTML code?
Most web pages are written in HTML. Every document written in HTML is supposed to follow these rules because HTML has its own grammar, vocabulary and syntax like very language.
Those does not follow the official rules is called invalid HTML code. HTML is constantly changing like any language. It’s very easy to make mistakes as HTML has become a relative complex language.
Why is valid HTML code important?
Search engines will find the relevant content of your web site via parsing the HTML code. If there is errors in your HTML code, search engines might not be able to find everything on the page.
The crawler programs of search engine obey the HTML standard. Only if your pages are compliant to the HTML standard can they index your site. Make sure that there is no mistake in your web page code, or they might stop crawling your web site and lose what they’ve collected so far because of the error.
Although most major search engines can deal with minor errors in HTML code, a single missing bracket in your HTML code can be the reason if your web page cannot be found in search engines.
If you miss some important tags, of close some tags improperly, search engines might ignore the complete content of that page.
How can you check the validity of your HTML code?
Luckily, you can have free services to check the validity of your HTML code. The most common HTML validator is the W3 HTML Validator.
It is a service to check HTML documents for conformance to W3C HTML and XHTML recommendations and other HTML standards.
The validator will tell your what errors are on the page when you enter the address of a web page on this page.
Although not all HTML errors will cause problems for your search engine rankings, some of them can keep web spiders from indexing your web pages.
Valid HTML code is very helpful for search engine spiders to index your site, so you should be sure that you have corrected the biggest mistakes in HTML code.