In SEOmoz.org, there is an article named "Search Engine Ranking Factors".

The author says:

This article contains a large list of the factors that can influence a web document's rank at the major search engines (Yahoo!, MSN, Google & AskJeeves) for a particular term or phrase. Although it is impossible to say for certain which of these items affects which search engine or how important the factors are individually, I've created an estimated ranking importance scale< …>

As you can guess, it's something like a small research. The author asked 13 people for their opinion what factors are important to search engine page rank.

There are 4 categories in which people checked the most important factors for high rankings:

• In-document (on-page) factors that affect ranking
• Factors that affect the link value
• Factors towards hosting, technical and URL
• Factors of detrimental ranking

From these categories, the respondents agreed upon 10 most important things that have a great impact on the ranking:

1. Title tag
2. Links anchor text
3. Keyword within the text of the document
4. Document accessibility
5. Internal linking
6. Site primary subject matter
7. External linking
8. Link popularity
9. Global site link popularity
10. Keyword stuffing

Although this is not a 100% guaranteed information, as the survey was made questioning not too many people, our experience shows the data does make sense. After all, you never lose anything to try improving your site in all ways.

"Per aspera ad astra".

This is because XHTML leaves the site code quite clean and clear if compared with normal HTML. The robots value readability.

The more unnecessary things there will be, the more difficult for robots the text will remain to understand.

What else is obligatory for improving your website? Headings. Of course. You can style the sub-headings from H1 to H6. The thing you cannot forget is to use keywords in headings, or else there will be no use of improvements. Styling H1 with CSS, you will reach the design effect you want: a better readable website.

XHTML is an abbreviation for the term of Extensible Hypertext Markup Language. It can be considered the new part of HTML and XML. The pages made with XHTML look the same as made with the classic HTML, but they are based on XML in general and have most of its advantages.

The next question would be „what are those advantages of XML and why is it good to use this language for web sites?“. The answer would consist of a few main points:
1. XHTML is extensible. This means that it‘s much easier to make changes in this language than in HTML.
2. XHTML is portable and interoperable. This language can be used in different portable devices with displays, e.g. cell phones, PDAs, etc.
3. One can use any XML tool to change or adjust Web documents.
4. Documents made with XHTML are more accessible. They tolerate screen readers better than HTML.
5. What is recommended for HTML, it‘s often obligatory for XHTML. This makes XHTML better and more reliable than HTML.

After all, HTML with all its components, helps increasing the quality of a website and raising its positions to the top results in the Search Engines.

Definition of XHTML

This is not a question of luck, in most cases. This is a question of technical architecture. For technical SEO, there are a few points that should be mentioned:

• Analysing the site structure. This means checking every page of the website and watching if some pages are seen by the search engine spiders better than other ones.
• Checking the URLs. They should not be complex and not understandable.
• Checking the HTML code. It should be clean and structured. Spiders should reach it and find the content.

It's very important to have a search engine-friendly website. It helps promote it and keep it visible. Try it!

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We work for different SEO companies and also for private clients in US, UK and Asia. All work is done onsite with no outsourcing - this assures us we provide the quality code.

What else? We're open. You can chat us using IM or call us. You can request free review of your code - main points can be seen in minutes. You can comment any post leaving your questions or fill our mail form. Or you can Just read this blog - we're hope it can become useful for any involved person.