All Validation

Validation simply means ensuring through a test program that your web site is written in valid code, or error free.Validation is important, and  it basically refers to using a program or an online service to check that the web page that you created is free of errors.Validating your web pages is a good habit to get into to help ensure your web pages function properly in all web browsers and search engines. There are various types of validators - some check only for errors, others also make suggestions about your code, telling you when a certain way of writing things might lead to unexpected results ,some  validators are HTML validators, CSS validators, Accessibility validators, and broken link validators.

HTML Validation : HTML Validation simply means ensuring that your web site is written in valid code, or error free.The process of using such software is known as "validation" and the primary goal of validation is to ensure that the submitted code contains no error or facial mistakes.The W3 Consortium has its own online validator which you can use for free.  You can go to http://validator.w3.org/ to validate both HTML and XHTML pages.

CSS validator : A CSS validator checks your Cascading Style Sheets in the same manner; basically, most will check them to make sure that they comply with the CSS standards set by the W3 Consortium. There are a few which will also tell you which CSS features are supported by which browsers.You can go to http://jigsaw.w3.org/css-validator/ get free validation for your style sheets.

Accessibility Validators : Accessibility Validators allow you to verify that your site is viewable by people who are differently abled. You can go http://www.section508.info/  to check your Accessibility Validation. 

Broken Link Validators : Broken Link Validation simply means ensuring that your web site how many links are broken .Broken links are not good for search engines because crawling robots will stop doing their thing and that makes your site no poste on Google, Yahoo and Bing.You can http://validator.w3.org/checklink to check free your broken link.