101 Great Free SEO Tools & Resources

With Search Engine Optimization there is simply no 'one tool does all' (yet). So I've compiled a list of 101 great tools and resources to help your site's SEO strategies. The best part is, they're all free!

Keyword Rank Checker – Track your website’s ranking in Google, MSN and Yahoo!

Google vs Yahoo Graph – Graphic display of top 50 in Google & Yahoo linked

PageRank Lookup – check the PageRank for a website

PageRank Verification – check if the displayed PageRank is real

Yahoo! WebRank Checker – check your Yahoo WebRank without needing to install the Yahoo toolbar

Google PageRank Prediction – check predicted PR of a site

Page Strength Tool – quickly assess a site/page's relative importance and visibility

Site Stats Tool – A quick snapshot of many indices of your website(s)

Poodle Predictor – see what your site will look like in search-engine results

Multi-Rank Checker – View your Google PageRank and Alexa Ranking in bulk

PageRank Checker – View your Google PageRank on differnet Google servers

PageRank for Mac – PageRank toolbar widget For Macintosh

PulseRank – Tracks Ranking movement on Google for 1000 keywords

Bookmark & Blog Search Check – Find your backlinks in the major bookmarking sites and blog search engines

Reciprocal Link Check – check whether your link partners are linking back to your website

Link Popularity Checker – a popularity score given to a website based on inbound links

LinkPrice Lookup – check the price of your link

Link Price Calculator – another tool for checking the price of links

Link Checker – check your links to see if it’s still valid or not

Link Verification Tool – regularly monitors text links, alerts you to problems

Backlink Tracker – check search engines for the number of back links to any specific URL over time

Backlink Summary – This tool will give you a summary of your competitors backlinks

Xenu's Link Sleuth – Find broken links on web sites

Link Popularity – checks the total number of web pages which link to a website

Link Quality – Link popularity checker and link quality assessment

Link Price Calculator – help to 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

Site Link Analyzer – analyze a given web page and return a table of data containing columns of outbound links and their associated anchor text

PayPerPost – Get quality contextual links though sponsored blog postings

High Traffic Blog Advertising – get your article and links published across hundreds of blogs

ReviewMe – Get your service or Web site reviewed by bloggers

URL Rewriting – convert dynamic URLs into static looking HTML URLs

Link Extractor – Extract links from a specific web page

Link Shortener – shorten a web address

Directory Lister – only submit your site to the highest quality directories

Directory Search Tool – check if your website is on major directories

Co-op Advertising Network – get text ads across 20,000+ sites

Back Links Finder – Build relevant website back links

Backlink Anchor Text Analyzer – check link text used by your backlinks to Link to your wesbite

Similar Page Checker – determine the percentage of similarity between two pages

Keyword Verification – checks to see if your site is in the top three pages of a search engine result for a specific keyword

Keyword Density Analyser – another SEO tools for keywords

Indexed Pages Checker – find how many pages of your website have been indexed by Google, Yahoo,
MSN, Alltheweb, Hotbot and AltaVista.

Keyword Cloud – a visual representation of keywords used on a website

Keyword Density – another SEO tool for checking keyword density

Keyword Analysis – analyse keywords on your website in specific Google datacenters

Keyword Data Miner – keyword search volume

Keyword Playground – determine key phrases and report on their monthly search estimate

Search Engine Saturation Tool – check the number of pages a given search engine has in its index for your website domain

Keyword Difficulty Check – see how difficult it would be to rank for specific keywords or phrases

Keyword Optimizer – optimizer your keywords with this tool

Keyword Typo Generator – generate a list of suggestions for likely human misspellings and typos

Comprehensive Typo Generator – generate more human misspellings and typos

Keyword Suggestion – Find related keywords matching your search

Another Keyword Suggection tool – suggest variations in WordTracker & Overture

Keyword Domain Suggestion – suggest keyword rich domain names

Free Keyword Research Tool – analyze the meta keywords of your competition

XML-Sitemaps – Build your Site Map online (XML, ROR, Text, HTML)

Gsitecrawler – Google (and Yahoo!) Sitemap Generator for Windows

Validate XML Sitemap – Search Engine Optimizion Tool for validating your xml sitemaps

Google Analytics – tells you everything about your visitors

Google Backlinks Check – Check Google and 9 data centers for backward link updates

Google Banned Checker – check whether a site is banned by Google or not

Search Engine Bot Simulator – SEO Tool to simulate search engine parsing of webpages and display discovered links.

Indexed pages – check the no. of indexed pages for your blog

Spider Simulator – simulates a search engine by displaying the contents of a web page

Search Engine Friendly Redirect Checker – checks the exact HTTP headers that a web server is sending with an HTTP response.

Search Engine Position – Locate your search listings on Google and Yahoo!

Search Listings Preview – Preview your website on Google, MSN and Yahoo! Search

HTML Encrypt – Hide your HTML source code

HTML Optimizer – Optimize and clean your HTML source code

HTTP Headers – Extract the HTTP Headers of a web page

HTTP Headers Viewer – check HTTP headers for any specific URL

Meta-tags Extractor – Extract meta-tags information from a web page

Meta-tags Generator – Generate and configure your meta-tags

META Analyzer – analyze a website’s meta tags

Meta Tag Generator – help you to generate meta tags

Meta Tag Optimization – Check your Title and Meta Tags for keyword optimization

Source Code Viewer – View the source code of a page

Alexa Traffic Rank – View and compare Alexa Ranking graphs

Domain Age Tool – find out the age of your competitor’s domains

Domain Stats Tool – get all kind of statistics of your competitor’s domains

Domain Availability – Check the availability of domains

Domain Look-up – Retrieve a range of information about a domain

Domain Whois – Retrieve domain whois information

Instant Domain Checker – Check the availability of domains instantly

Reverse IP/Look-up – Resolve a host to an IP address

Server Status – Check if your website is online or offline

Website Speed Test – Find out how fast your website loads

What Is My IP Address – shows your ip address

Class C Checker – check if some sites are hosted on the same Class C IP Range

IP to City – determine the Country, City, Latitude and Longitude of an IP Address

Website to Country – determine the Country in which the specified website is Hosted

Geo Visitors – detect where in the world visitors are coming from

Statcounter – famous free web tracker

Web Counter – very simple, free web counter

HiStats – Free, real time updated web stats service

Addfreestats – provide free website statistics

FEED Validator – for Atom and RSS

W3C Markup Validation Service – check for conformance to W3C Recommendations and other standards

Browser Screen Resolution Checker – shows what your site looks like with different screen resolutions

Your Browser Details – View your IP address and your browser details

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