I have made a list of my favourite on-line tools that I use to analyse websites. They help me to explore in depth the structure of pages. They show me the errors that I have made during the development of the site. I also find lots of tips for on-page and off-page search engine optimization there. The best thing about these instruments is that, they are available for free use, and you are able to take advantage of this favourable fact. :)

You know that the most important thing for successful SEO optimization is a quality unique content. If the search engines find duplicate content on your sites, it can cost you the indexing of your pages.

01The first web tool that I want to show you is "Duplicate Content Checker".

Thanks to this tool will quickly learn about the problems with duplicate content. It tests for a shortcoming in settings on your servers or omissions in creating unique content.

In the photo below clearly shows that you forget to forward from "www.", which in some search engines are interpreted as multiple sites with identical content.

Duplicate content checker from Virante

The solution is to add an instruction for redirection in your htaccess file.

# mod_rewrite in use

RewriteEngine On

RewriteCond %{HTTP_HOST} ^www.itprism\.com
RewriteRule ^(.*)$ http://itprism.com/$1 [R=301,L]

02Next of my favourite tools is "Markup Validation Service".

The valid HTML source code is not importance for search engines, but is very important for me.

Whenever I see a green superscription "This document was successfully checked as XHTML 1.0 Transitional!", invade at me a wonderful feeling of a job well done.

03Next is "Google Trends" - one of the most useful tools from Google.

Google Trends shows the frequency of keywords in a period of three years. So learn when is the best time of my publications

If you are wondering about the next topic for your article, you can consult it. Just look at "Hot Searches" and "Hot Topics" to get detailed information on the most wanted now, not in principle.


Google hot trends


04SEO-Stats.eu propose an implement which I liked a lot, and is en route to become one of my favourites. Data are neatly arranged and beautifully exposed. Easy to get to lists of backlinks from social media - Twitter, Facebook, Del.icio.us and Technorati. You will find lists of indexed backlinks to pages from which analyse.


SEO Stats EU SEO Stats Rank EU

05Here it is the champion in all SEO free tools - WOOrank.

Provides comprehensive information for in-site and off-site optimization. Analyse web site for more than 50 criteria. It will help you quickly and easily navigate within the current state of your site. You'll find excellent advices for solving problems.

WOO Rank

06The next one that I want you to see it is "Keyword Density Checker". This tool inspects the content of your page and sorts the words by density. This helps you see the whole picture, which will help you to improve rating of the site in search engines.

07Try this wonderful instrument for keyword suggestions. Thanks to this tool will expand your list of phrases. It evaluates and arranges the phrases by traffic, which makes it extremely useful as brings more customers.


Website keyword suggestions


08The last one is "SEO Workers Analyser".

I like it because makes a close analysis and gives me valuable advices. There are video presentations of Matt Cutts, Head of Google's Webspam Team. Entirely focused on in-site optimization, but the results are really good.

SEO worker analysis tool

It was the list of my favourite tools for web sites analysing. I am sure will be useful for you.

Use them wisely and you will see your site on the first page in search engines. And whenever you use them have fun.

Which are your favourite free SEO tools? You will make me happy if you share them with me and readers of my blog.

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