WC3 Validation how much effect IN SEO?

Do you think if a website’s Code is WC3 validated code it will get higher priority or advantage from all competitor who don’t have WC3 validated code. Please give me your feedback.

I think this is the video you’re referring to:

About as much effect as the price of eggs has on how fast a plane can fly between London and New York.

Having the page pass validation means the page is more likely to display correctly in more browsers. It has no noticeable impact on SEO. Using the semantically correct HTML tags will have a much greater impact on SEO.

Valid code will not per se help your rankings in SERPs. However, there are a number of advantages that valid and semantically correct code will give you:

  • Better experience for users, as it will work consistently and reliably across all modern and future browsers
  • Generally leaner code, giving a higher content-to-code ratio
  • Appropriate use of semantic elements helps search engines to understand the content

There’s no good reason to use invalid code, when valid code works so much better. Making the occasional mistake is unlikely to hurt your search rankings but could hurt people using your site.

no its not true W3C validation gives any site the priority and advantage from competitor. Its the only that you following the rules to make search engine friendly website.

Google looks towards (and recognises) HTML markup and as Stephen said, if it’s well formed, semantic and makes appropriate sense then it will rank highly. This does mean that validation can play a part in SEO… if your HTML is well formed (no syntax errors like broken elements which leak the semantic value) you may be better ranked (as Google will recognise the elements and give it the appropriate value to it - As Stevie said). However validation is just a tool, if you can’t write well formed code then you have bigger problems on your mind than SEO, people who rely on validation or tools to tell them their code meets some level of standard need a reality check. The W3C validator doesn’t have some magic wand to recognize contextual value… don’t base your decision to code properly on SEO. :slight_smile:


According to me WC3 validation is important as far as SEO concerned what do u thick??


I think you can’t read the thread :slight_smile:

I agrees with all the previous postings and may I add…

…I reckon if your site has no validation errors and/or warnings then it will load faster because your browser can allocate the script according to the rules. The browser does not have to go through additonal checks before displaying your script.

OK the time saved will be minimal but it must make a slight difference :slight_smile:



I read the thread that’s why i posted previous thread. if you feel anything wrong then please tell me then i will correct.

sonal sahani

Well if you re-read the responses, you will see your question has already been answered :slight_smile:

You might want to include an explanation of why you think W3C matters in SEO.

Otherwise we’ll end up with an unhelpful thread full of:

  • I think W3C is important
  • I don’'t think W3C is important
  • I think W3C helps SEO
  • I don’t think W3C helps SEO

That kind of thing helps nobody.

Well I can tell you guys I have a blog on wordpress which shows around 300 errors on W3C validation, but still I am on top 10 of google.
So it shows google ranking will not depend on validation.

But if you had better code, could you be at #1?
Anyone can get into the top 10 on Google - just build a site targeting a particularly obscure phrase and you won’t have any competition!

I think there are some cases where you have to go outside of the w3c standards to ensure the appropriate user functionality. I do not think this has much if any bearing on SEO. However as others have noted using the proper html html tags to describe your content is very important.

For instance the <h1> tags. These would describe the main header of a block of content or the main content of a page. You could easily achieve the same visual effect and your page would still validate if you just used a styled <p> tag.

<p style="font-size:2em;font-weight:bold">My Page Heading</p>

This still validates but doesn’t do much for you SEO. The following would be more correct when it comes to html, still validates and satisfies the SEO gods

<h1>My Page Heading</h1>

So here you have two situations. Both validate, both look the same but one is likely to do better for SEO.

Now, here’s one situation that doesn’t validate (strict) but I feel it’s ok to do this in certain situations where the user would expect this behavior.

<h1><a href="somepage.html" target="_blank">My Page Heading Opens in a new page</a></h1>

When you take a look at the codes sheets of the most top Google ranking websites you would find a lot of errors and mistakes while this never affects their rankings.

Wc3 validation as mentioned would simply be a score on how pages load on browsers.

Personally I dont belive in W3c vaidation, its just ok to realize that search engines will have no problem to crawl the website, and this is something valuable in case if you are running a huge database website with like million of pages having links from homepage … But for a small site it is not mandatory (In my opinion only)

Oh jeez I’m so confused I thought search engines only needs the “text” part of the site and doesn’t give a damn about the “code” part. :frowning:

Didn’t Matt Cutts say in one of his videos that Google doesn’t care about validation?

Validation for W3C has never had a Search Engine requirement attached to it.

There are some small side-benefits to your site validating, but actual website/page ranking in search engines is not considered one, other than when you factor in the following:

  • Validation normally ensures semantic mark-up is employed. Semantic markup does provide better hints to the importance of your content (headings, emphasis etc)
  • Validation normally results in a better code/content ratio. The less code required to present the content means the page is parsed quicker and processed faster. This maybe slightly redundant, but an older process of Google was to only request/parse the first few 100kb of a webpage.
  • Validation normally results in your page rendering in most browsers correctly. There is some debate on landing-page quality in the SEM sphere influencing how those pages are treated in an organic sense.

It’s also important to remember:

  • A valid page can contain masses of table-based and redundant markup
  • Google’s own pages mostly don’t validate
  • Most top-ranking pages don’t validate (across all industries and spaces)

My personal belief is that you should try to create well crafted, sematically correct and valid (x)HTML as part of best practice. However you should balance that with not letting perfection getting in the way of better, and you shouldn’t do it with the belief you will rank higher because of it.