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Search Engine Optimization (SEO) Verifying Web Site Information


Search Engine Optimization (SEO) Verifying Website Information.


You design develop a website but how would you know if have put all the HTML syntax  a correct way. Most browsers do not complain against your wrong syntax, but wrong is wrong.

There are many Search Engine Optimization (SEO)  is not dependent on site HTML/XML verification. But we will discuss various reasons why your website should be w3c Compliance.

Why HTML/XTML Verification is Required?
There are various reasons to verify your website before hosting it over the internet.


  • Any web page Quality depends on how  well you have webpage. It should be syntactically correct and should pass all the Quality Gates.
  • When any search engine does indexing for your web page content, it might get confused if the HTML tags are not written properly, and much of the web page content might not be indexed properly.
  • There might be many HTML tags, which you are using in your web page but then have been depreciated and many of the search engines do not support them.
  • Consistency, HTML Code Beauty, Process Compliance are always appreciated by good webmasters.
What is W3c Compliance?

W3C is the world wide web consortium and since 1994, the W#C has provided the guidelines by which, websites and web pages should be structured and created, Here are the links to validate your web  pages:-


  • Validate HTML/XHTML file aganist W3C Standard HTL/XHTML Validator.
  • Validate CSS File against W3C Standard CSS Validator.
While verification, you may get errors along with appropriate reasons. all the validations will be done using XHTML DTD, Which is a refined version of HTML.

Rules for W3C Compline information:

There following rules, are to be following while developing a web page.

  • Use XHTML declaration statements to start every XHTML page.
    • <!DOCTYPE html PUBLIC
    • "-W3C//DTD XHTML 1.0 strict//EN" " DTD/html-stricet.dtd">
  • Everu tags must be closed.
  • The head and body tags are now mandatory.
  • Empty tags get a terminating slash. An empty tag is a tag that doesn;t require an tag. Examples include <br> and <hr>.
    • <br> tech onfo is now</br>
    • <hr> tech info is now</hr>
      • <img SRC="#"> tech info is now<img src="#"/>

  • All tages must be lower-case. This does not apply to attributes, only tags. for example, both of the formats are acceptable under the XHTML DTD:
    • <Font color="#ffffcc" is invalid
    • <font color="#fffcc"> is valid
      • <font color="#fffcc"> is also valid
  • All the attribute values should be put with in quotes.
  • Tags may not be nested.
    • <b><i>Text</b></i> This is invlid
    • <b><i>Text</i> This is valid it is right.
  • The <pre> tag should not contain: img, object, big small, Sub, or Sup.
  • One<from> tag cannot be inside another<form>tag.
  • If your code contains a &, it must be written as &amp;.
  • Any use of CSS Should all lower-case letter.

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