Page Rank

Rank Checker (http://www.iwebtool.com/rank ) - Get a overview of your website's ranking
PageRank Lookup (http://www.seochat.com/seo-tools/pagerank-lookup/ ) - check the PageRank for a website
Google PageRank Prediction (http://www.iwebtool.com/pagerank_prediction ) - check predicted PR of a site
Multi-Rank Checker (http://www.iwebtool.com/multirank ) - View your Google PageRank and Alexa Ranking in bulk
PageRank Checker (http://www.iwebtool.com/pagerank_checker ) - View your Google PageRank on differnet Google servers

Links related

Bookmark & Blog Search Check (http://www.searchbliss.com/seo-tools...log-search.asp ) - Find your backlinks in the major bookmarking sites and blog search engines
Reciprocal Link Check (http://www.webconfs.com/reciprocal-link-checker.php ) - check whether your link partners are linking back to your website
Link Popularity Checker (http://www.linkworth.com/link_popularity.php ) - a popularity score given to a website based on inbound links
LinkPrice Lookup (http://www.linkworth.com/tools/price-quote.php ) - check the price of your link
Link Price Calculator (http://www.webconfs.com/link-value.php ) - another tool for checking the price of links
Link Checker (http://www.ranks.nl/cgi-bin/ranksnl/tools/checklink.pl ) - check your links to see if it's still valid or not
Link Popularity (http://www.seochat.com/seo-tools/link-popularity/ ) - checks the total number of web pages which link to a website
Link Price Calculator (http://www.seochat.com/seo-tools/link-price/ ) - 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 (http://www.seochat.com/seo-tools/site-link-analyzer/ ) - analyze a given web page and return a table of data containing columns of outbound links and their associated anchor text
URL Rewriting (http://www.seochat.com/seo-tools/url-rewriting/ ) - convert dynamic URLs into static looking HTML URLs
Link Extractor (http://www.iwebtool.com/link_extractor ) - Extract links from a specific web page
Link Shortener (http://www.iwebtool.com/link_shortener ) - shorten a web address
Back Links Finder (http://www.searchbliss.com/seo-tools...nks-finder.asp ) - Build relevant website back links
Backlink Anchor Text Analyzer (http://www.webconfs.comURLnchor-text-analysis.php ) - check link text used by your backlinks to Link to your wesbite

Keyword related

Keyword Verification (http://www.marketleap.com/verify/default.htm ) - checks to see if your site is in the top three pages of a search engine result for a specific keyword
Keyword Density Analyser (http://www.markhorrell.com/tools/density.asp ) - another SEO tools for keywords
Keyword Cloud (http://www.seochat.com/seo-tools/keyword-cloud/ ) - a visual representation of keywords used on a website
Keyword Density (http://www.seochat.com/seo-tools/keyword-density/ ) - another SEO tool for checking keyword density
Keyword Difficulty Check (http://www.seochat.com/seo-tools/keyword-difficulty/ ) - see how difficult it would be to rank for specific keywords or phrases
Keyword Optimizer (http://www.seochat.com/seo-tools/keyword-optimizer/ ) - optimizer your keywords with this tool
Keyword Typo Generator (http://www.seochat.com/seo-tools/key...ypo-generator/ ) - generate a list of suggestions for likely human misspellings and typos
Keyword Suggestion (http://www.iwebtool.com/keyword_suggestion ) - Find related keywords matching your search
Free Keyword Research Tool (http://www.apogee-web-consulting.com ...yword_tool.php) - analyze the meta keywords of your competition

Sitemap

XML-Sitemaps (http://www.xml-sitemaps.com/ ) - Build your Site Map online (XML, ROR, Text, HTML)
Gsitecrawler (http://gsitecrawler.com/ ) - Google (and Yahoo!) Sitemap Generator for Windows
Validate XML Sitemap (http://www.xml-sitemaps.com/validate-xml-sitemap.html ) - Search Engine Optimizion Tool for validating your xml sitemaps

Search Engines

Google Analytics (http://www.google.comURLnalytics/ ) - tells you everything about your visitors
Google Backlinks Check (http://www.searchbliss.com/seo-tools...-backlinks.asp ) - Check Google and 9 data centers for backward link updates
Google Banned Checker (http://www.iwebtool.com/google_banned ) - check whether a site is banned by Google or not
Search Engine Bot Simulator (http://www.xml-sitemaps.com/se-bot-simulator.html ) - SEO Tool to simulate search engine parsing of webpages and display discovered links.
Indexed pages (http://www.seochat.com/seo-tools/indexed-pages/ ) - check the no. of indexed pages for your blog
Spider Simulator (http://www.seochat.com/seo-tools/spider-simulator/ ) - simulates a search engine by displaying the contents of a web page
Search Engine Friendly Redirect Checker (http://www.seochat.com/seo-tools/redirect-check/ ) - checks the exact HTTP headers that a web server is sending with an HTTP response.
Search Engine Position (http://www.iwebtool.com/search_engine_position ) - Locate your search listings on Google and Yahoo!
Search Listings Preview (http://www.iwebtool.com/search_listings_preview ) - Preview your website on Google, MSN and Yahoo! Search

HTML related

HTML Encrypt (http://www.iwebtool.com/html_encrypter ) - Hide your HTML source code
HTML Optimizer (http://www.iwebtool.com/html_optimizer ) - Optimize and clean your HTML source code
HTTP Headers (http://www.iwebtool.com/http_headers ) - Extract the HTTP Headers of a web page
HTTP Headers Viewer (http://www.xml-sitemaps.com/http-headers-viewer.html ) - check HTTP headers for any specific URL
Meta-tags Extractor (http://www.iwebtool.com/metatags_extractor ) - Extract meta-tags information from a web page
Meta-tags Generator (http://www.iwebtool.com/metatags_generator ) - Generate and configure your meta-tags
META Analyzer (http://www.seochat.com/seo-tools/meta-analyzer/ ) - analyze a website's meta tags
Meta Tag Generator (http://www.seochat.com/seo-tools/meta-tag-generator/ ) - help you to generate meta tags
Meta Tag Optimization (http://www.searchbliss.com/seo-tools...timization.asp ) - Check your Title and Meta Tags for keyword optimization
Source Code Viewer (http://www.iwebtool.com/code_viewer ) - View the source code of a page

Domain related

Alexa Traffic Rank (http://www.iwebtool.comURLlexa_traffic_rank ) - View and compare Alexa Ranking graphs
Domain Age Tool (http://www.webconfs.com/domain-age.php ) - find out the age of your competitor's domains
Domain Stats Tool (http://www.webconfs.com/domain-stats.php ) - get all kind of statistics of your competitor's domains
Domain Availability (http://www.iwebtool.com/domain_availability ) - Check the availability of domains
Domain Look-up (http://www.iwebtool.com/domain_lookup ) - Retrieve a range of information about a domain
Domain Whois (http://www.iwebtool.com/whois ) - Retrieve domain whois information
Instant Domain Checker (http://www.iwebtool.com/instant ) - Check the availability of domains instantly
Ping Test (http://www.iwebtool.com/ping ) - Check the presence of an active connection
Reverse IP/Look-up (http://www.iwebtool.com/reverse_ip ) - Resolve a host to an IP address
Server Status (http://www.iwebtool.com/server_status ) - Check if your website is online or offline
Website Speed Test (http://www.iwebtool.com/speed_test ) - Find out how fast your website loads
What Is My IP Address (http://www.whatismyipaddress.com/ ) - shows your ip address
Class C Checker (http://www.webrankinfo.com/english/t...-c-checker.php ) - check if some sites are hosted on the same Class C IP Range
IP to City (http://www.webconfs.com/ip-to-city.php ) - determine the Country, City, Latitude and Longitude of an IP Address
Website to Country (http://www.webconfs.com/website-to-country.php ) - determine the Country in which the specified website is Hosted

Web stats

Statcounter (http://www.statcounter.com/ ) - famous free web tracker
HiStats (http://www.histats.com/ ) - Free, real time updated web stats service
Addfreestats (http://www.addfreestats.com/ ) - provide free website statistics