linear / links / Webmaster
- .htaccess banning
- a spambot trap
Neil Gunton's thorough approach to blocking spambots - a1 sitemap generator - generate rich web
Sitemap generation tool - google dance tool
check multiple google datacenters with a single query - htaccess code generator
- juicy studio: colour contrast analyser
Make sure your foreground and background colors contrast sufficiently with this handy tool that implements the algorithm suggested in the Web content Accessibility Guidelines 1.0 - juicy studio: readability test
Calculates the Gunning Fog, Flesch Reading Ease, and Flesch-Kincaid scores for your webpage to allow you to assess the readability of the content. - keyword density analyzer
- keyword density analyzer
This is the best keyword density analysis available, period. - ms web stress tester
- performance testing using httpd-test's flood
Article decribing load testing Apache with free tools - poodle predictor
- robots and spiders resource
Robots, spiders and other user agents: a resource for WebMasters has a nice usable front end to a great categorized list of user agent strings. Plus, it will generate a .htaccess file for you. Most excellent tool. - robots.txt file tutorial
- robots.txt validator
- sbox: put cgi scripts in a box
- search term suggestion tool
a tool that suggest keywords and keyphrases similar to one you provide - spider simulator
- the web credibility project - stanford university
Our goal is to understand what leads people to believe what they find on the Web. - touchgraph googlebrowser
- view http request and response header
A nice online way to inspect http server headers and page source code. - w3c web content accessibility guidelines 1.0
- wannabrowser | http user agent spoofing
- webhostingtalk forums
- webmaster toolkit
a nice collection of SEO and other tools - webmasterworld
- webpage size checker
checks size in bytes, plus calculates text/markup ratio--very useful - whois report - domain name search engine