What are the best ways to boost your position in search engines? What keywords should you use on your web-pages? And which tools should you use to improve the quality of backlinks, link popularity and Google Pagerank? We deliver answers. Here is the list of the most useful SEO-tools you might be willing to use, developing and optimizing your next web-site. Our personal choice: 

Alexa

• Alexa-Ranking
  Alexa page-rank-and-rating-results
  

Backlink

• Anchor Text Backlink Checker
  This tool is to check your backlinks and the anchor text used in those backlinks.
• Backlink Analyzer
  Research and analyze websites for link quality. Checks for Indexed Pages, Links to Website, EDU & .GOV Links, Domain Age & Expiration, Google PageRank, Alexa Traffic Rank, DMOZ Listing
• Backlink Anchor Text Analyzer
  This tools help you determine the backlinks of your website and link text used by your backlinks to Link to your website
• Backlink Builder
  Building Quality backlinks is one of the most important factors in Search Engine Optimization…

Domain Popularity, Domain Stats Tools…

• Domain Age Tool
  This tools displays the approximate age of a website on the Internet and allows you to view how the website looked when it first started
• Domain Dossier
  Investigate domains and IP addresses
• Domain Popularity
  This tool shows you all backlinks for the given domain, including up to 10 subpages per backlinking domain, host IP and Google PageRank
• Domain Stats Tool
  This tool helps you get all kind of statistics of your competitor’s domains. The statistics include Alexa Taffic Rank, Age of the domains, Yahoo WebRank, Dmoz listings, count of backlinks and number of pages indexed in Search Engines like Google, Yahoo, Msn etc.
• HTTP / HTTPS Header Check
  This tools allow you to inspect the HTTP headers that the web server returns when requesting a URL. Works with HTTP and HTTPS URLs
• View HTTP Headers
  This little tool lets you view the HTTP headers for a HTTP request
• View HTTP Path
  This little tool lets you view the path/redirects a request takes to get fulfilled

Google Page Rank Checker, Adwords Keyword Tools,Google Banned Tools…

• Advanced Google searches
  Use this tool to search google in many special ways. A useful resource for search engine optimization (especially keyword research) among other things
• Check Google Pagerank
  Now you can check the Google PageRank of any web page without installing the Google toolbar
• Check PageRank by Google data center
  With this tool you can check the PageRank from different data centers
• Free Google Adsense Keywords & YPN Keywords Search Tool
  With the ability to search a growing database of tens of thousands of high-dollar Adsense keywords, Iotaweb allows publishers to find the keywords and key phrases that will allow them to focus their content to monetize their site most effectively.
• Google Adwords Keyword Tool
  Keyword tool from Google that provides Specific and Similar keywords.
• Google Banned Tool
  This tool uses two methods to check to see if a URL you enter is in the Google database. Its a great way to check to see if you have been banned by Google for various reasons….
• Google Keyword Ranking Tool
  Search with list of keywords from differnet Google search sites
• Google Page Rank Checker
  Instantly check the PageRank of any website or web page
• Google Page Rank Checker
  A simple tool that checks and your PageRank so you can display it on your website
• Google Sets
  Automatically create sets of items from a few examples.
• PageRank Authenticity Check
  This tool shows you the PageRank of a given domain. Also the PageRank will be checked of authenticity
• Page Rank Tool
  Our PageRank Tool will query and return the Google PageRank values for submitted URL from various Google datacenters…
• Visual PageRank
  The Visual PageRank – Tool shows all links and there corresponding PageRanks

Keyword Analysis Tool, Keyword Density, Keyword Suggestion Tools…

• McDar Keyword Analysis Tool
  Enter URL and keyword, it will display Pagerank and Back links pages for the Top 10 websites.
• Keyword Density
  This tool shows you how often appears which word in content of given domain
• Keyword Density
  The keyword density tool is useful for helping webmasters and SEOs achieve their optimum keyword density for a set of key terms.
• Keyword Density Checker
  Keyword Density is the percentage of occurrence of your keywords to the text in the rest of your webpage. This tool will crawl the specified URL, extract text as a search engine would, remove common stop words and Analyze the density of the keywords.
• Keyword Difficulty Tool
  The keyword difficulty tool is used to analyze the competitive landscape of a particular search term or phrase, this tool issues a percentage score and provides a detailed analysis of the top ranking sites at Google and Yahoo…
• KwMap.net
  A Keyword Map For the Whole Internet
• Keyword Suggestion Tool
  This keyword suggestion tool will help you with the choosing of the right keywords for your website. You can see which keyword combinations are more popular and also get ideas for more keyword combinations..
• Website Keyword Suggestions
  This tools tries to determine the theme of your website and provides keyword suggestions along with keyword traffic estimates.
• Ontology Finder
  Related Keywords Lookup Tool

Link Popularity Check, Site Link Analyzer, Link Value…

• Deep Link Ratio Tool
  This tool was created to analyze how the deep link ratio of a site affects its rank in search engines. We can use this tool to compare the DLRs for the best ranking sites for a search phrase.
• Link Popularity Check
  Link popularity check is one of the best ways to quantifiably and independently measure your website’s online awareness and overall visibility…
• Link Popularity Checker
  The Link Popularity Checker tells you how many websites are linking to yours…
• LINK VALIDATION SPIDER
  Free Online Broken Link Checker
• Link Price Calculator
  This tools will help you determine the approximate amount you should be paying (or charging) per month for a text link (ad) from each and every page of the specified website
• Link Value
  This tool calculates the link value per month of a given website.
• Reciprocal Link Check
  This tool helps you ensure that your link partners are linking back to your website. It also determines the anchor text used by your link partners to link to your website.
• Site Link Analyzer
  This tool will analyze a given web page and return a table of data containing columns of outbound links and their associated anchor text…
• The Link Reputation Measurement Tool
  Reveals backlinks pointing to your target url along with the following: Link Survey – Link Reputation Score – Text used in links pointing to you – Alexa traffic analysis for the site corresponding to each backlink
• Outbound Links
  This tool shows every outgoing link from the given domain. Separated in external and internal links

Meta Tag Generators

• Meta Tag Generator
  Our Meta Tag Generator will read the page you specify, remove common words from it, and pick the most used words on the page. It will then generate a Meta Keywords tag using the words it has found…
• Meta Tag Generator
  Use this tool to generate a search engine friendly Head Tag for your web site
• Title & Meta Tags Generator
  his code generator will build the title and meta tags for your site to help improve your website’s search engine ranking using our Meta Tag Generator

Miscellaneous Tools

• Directory Submission Manager
  Use this free tool to track your submissions to various web directories….
• Copyscape
  Search for copies of your page on the Web
• Site Analysis including Link Popularity
  This tool generates a complete site analysis e.g. amount of backlinks, indexed sites, Google PageRank and also if your domain is listed in DMOZ and Yahoo directory
• Sitemap Generator
  Create your Google Sitemap Online
• Similar Page Checker
  Search Engines are known to penalize websites that contain Duplicate / Similar content. Your content could be similar to other websites on the Internet, or pages from within your own website could be similar to each other. This tool allows you to determine the percentage of similarity between two pages
• Speedtester
  This tool shows the duration of a given website. This value can be used for showing how long a website take to load and if it is better to optimize the website or change a (slow) ISP.
• mod_rewrite RewriteRule Generator
  Our mod_rewrite RewriteRule generator will take a dynamic url given to it, and generate the correct syntax to place in a .htaccess file to allow the url to be rewritten in a spiderable format
• URL Rewrite (mod_rewrite)
  With this tool you can generate dynamic urls to search engine friendly urls..
• URL Rewriting Tool
  Create Search Engine Friendly URLs
• User Agent Cloaking Detector
  This tool simulates the Googlebot (based on User-Agent) to detect cloaked content
• What is Hosted on that IP
  This little tool lets you view the virtual hosts on a particular IP

Search Engine Position Checker, Spider Simulator, Ranking Report, SERP Tracker

• Google vs Yahoo Graph
  This tool looks at the results from Yahoo and Google, finds the similarities and then gives you a graphical display of what results are in both search engines
• Search Engine Position Checker
  The Search Engine Position Checker tool will automatically query the search engines you specify and check if your URL appears in the first 50 results for your chosen keywords….
• Search Engine Spider Simulator
  With this tool you see all informations a search engine spider receive from a website.
• Marketleap Search Engine Verification Tool
  Our verification tool checks to see if your site is in the top three pages of a search engine result for a specific keyword
• Number of pages indexed
  This tool will generate a report showing how many pages of your website has been indexed by the search engines so far. It supports all major search engines: Google, Yahoo, MSN, Alltheweb, Hotbot and AltaVista.
• Search Engine Ranking Report
  Input key phrase list get Google rankings
• Serps Position
  Use this tool to find out, on which position your domain is ranked for the given keyword and compare the first 100 results by Google, search.MSN and Yahoo.
• SERP Tracker
  The SERP Tracker reports on search engine results and charts performance over time

SEO Analyzer, Scanner

• Free SEO Tools
  SEOToolSet
• Cool SEO Tool!
  This internet marketing tool checks the top 10 sites that rank in Google. After that, it checks to see how those 10 sites rank in Yahoo and in MSN….
• SEO Analyzer
  The SEO Analyzer is a FREE tool that uses a sophisticated algorithm that detects how optimized your web design is for search engines
• SEO Scanner
  An all-in-one advanced SEO analysis, tracking, and reporting tool

Robots.txt Tools

• Robots Txt Generator
  Use this tool to generate a simple robots file for your website…
• Robots.txt syntax checker
  This robots.txt syntax checker checks the contents of a site’s robots.txt…