How important is HTML validation?

[arianagrand]

Hello friends,

How important is HTML validation?

Is it useful in terms of SEO

[stylelifefame]

The W3C is the World Wide Web Consortium and provides guidelines based on best practice, regarding how websites and web pages should be structured and created for long–term durability. The W3C validation is just a standard for specified machine language, checking web documents, spelling, grammar, syntax, and proofreading.

[Eric Rowan]

As a website owner/webmaster, HTML validation will definitely help you in correcting the website errors, warnings or issues.