| General Tools | |
|---|---|
| IntoDNS | Check DNS - especially missing nameservers |
| Domaintools | Check domain active, crawlable, where hosted |
| Rex Swain's Viewer | View redirection, BOMs, chunking, headers. |
| Web Sniffer | View source color-coded, spoof User-agents, headers |
| If-Modified-Since Check | Check if a server supports If-Modified-Since GETs |
| Copyscape | Search for copies on the web |
| Google Safebrowsing | Don't forget to check the networks too |
| Keywords | |
| Keyword Suggestions | From recent searches |
| Google Keywords | Keyword suggestions from Google search |
| Google Trends | Check viability of search keywords |
| Validators | |
| robots.txt Validator | Good robots.txt checker - doesn't like Allow: |
| HTML Validator | WDG validator - batch mode does up to 100 pages |
| HTML Validator | W3C Validator - source display option |
| Accessibility | Compliance with Disability Discrimination Act 1995/2005 |
| Readability | Gunning Fog Index & Flesch-Kincaid |
| Spider Simulator | See exactly what the Googlebot sees |
| Linking | |
| Bad Neighbourhood | Check for links to bad neighbourhoods |
| Site Explorer | Yahoo's Linkfinder |
| Management | |
| Site Summary | Most information in one place |
| Web Page Analyzer | Reasonable idea of page performance |
| Google Analytics | Analytics Overview |
| Google Webmaster Tools | Webmaster Tools Overview |
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