Analyzing webpages document markup for logics, robots, visitors and user friendliness. This tool analyzes a Web page and lets you know if it is focused on you, or on your visitors. Web pages must be written with the focus on visitors, not serach engines or ourselves. Custormer Focus Calculator
Page Rank Checker Spider Simulator and Backlink Checker.
This site has three different tools a Search Engine Spider Simulator, Google Backlink Checker, and a Page Checker that determine the similarity between two pages. SEO Tools.
Marketleap Search Engine Marketing Tools
Compare your site to five other sites to determines how many pages a given search engine has in its index for your Web site. This Keyword Verification Tool checks to see if your page is in the top 30 of a search engine's results for a certain keyword or keyword phrase. Search Engine Marketing Tools
Reinforcing Your Computer's Security
Gibson Research Corporation offers a really neat (and frëe) tool for checking the security of your computer. Just scroll down on the page to the Hot Spots
link to ShieldsUp. Be sure to go through each of the checks in the ShieldsUp section (File Sharing, Common Ports, etc.). Find Computer Security
Website Security Check Report
This very cool tool lets you find out how secure your Web site is. When I first used it, it found more holes in the security of my Web site than the laws allows, and I promptly changed to a different hostïng company! Website Security Report
Reverse DNS Internet provider Address Lookup
This service converts an IP address to the host name by searching domain name service tables.
Searching Domain Name
Html Document Structure Image Syntax and Table Analysis
Clïck on Single Page, and the frëe service will analyze your Web page based on document structure, image syntax, table analysis, browser support, verify hyperlinks, and much more.
HTML Doctor
Compressing GIF, JPEG Aand Animated GIF Images
GifBot will compress your GIF, JPEG, and animated GIF images by decreasing the file size without sacrificing the quality of the image. So, your pages load faster!
Compress your Images.
Webpage Accessibility Checker And Guidelines Help
This online service allows you to test Web pages to help expose and repair barriers to accessibility and encourage compliance with existing accessibility guidelines. It's very important to make sure your Web pages are accessible for those who surf the Internet with disabilities. Help with Accessibility Guidelines
Any Browser and Screen Size Resolutions Tester
At the Screen Size Tester, you can test your Web pages in different screen resolutions so that you can be assured that all of your visitors can view your site in its entirety.
Any Browser & Screen Size Tester
A Comprehensive Guide to .htaccess
Check out this comprehensive and detailed Guide to .htaccess. Though not a "tool" per se, this comprehensive tutorial about how to use the .htaccess file is excellent. Guide to .htaccess
