Site checking tools
Cacheabilty Query: See how caches handle web pages.
http://www.web-caching.com/cacheability.html
Link Popularity Checker: Measures a site’s online awareness and overall visibility
http://www.marketleap.com/publinkpop/
Page Rank Search: Page rank & Google Postion Search (plus Yahoo and MSN)
http://www.prsearch.net/
W3C Validator: (X)HTML compliance
http://validator.w3.org/
W3C CSS Validator: Funnily enough, CSS validation
http://jigsaw.w3.org/css-validator/
Feed Validator: Check RSS feeds are correct
http://feedvalidator.org/check.cgi
Cynthia: Section 508 and WCAG checking
http://www.contentquality.com/fulloptions.asp?EMSG=%0D%0A%3Cbr%3EYou+must+enter+a+URL+to+check.
W3C Link checker: For exactly that, checking links
http://validator.w3.org/checklink
WebXACT: Link checking and WCAG
http://webxact.watchfire.com/scanform.aspx?sa=1
Silktide: Overall design, WCAG and British Disability Discrimination Act compliance
http://www.silktide.com/tools/sitescore
Speed Report: Page sizing, speed and design
http://www.websiteoptimization.com/services/analyze/index.html
Design Tools
PHP Markdown: Plain text markup syntax and converts plain text to HTML.
http://www.michelf.com/projects/php-markdown/dingus/
Mask Email Image Generator: Outputs as a JPG and has more options than the one below
http://digitalcolony.com/02/maskemail/inc/genEmailMask.asp
Email Address to Image Converter: Outputs as a PNG
http://chxo.com/labelgen/
FireFox WebDevloper Toolbar: Name says it all, Thanks to Sottwell for this
https://addons.mozilla.org/extensions/moreinfo.php?application=firefox&category=Developer%20Tools&numpg=10&id=60
IE developer Toolbar: Microsoft had to keep up with FF
http://www.microsoft.com/downloads/details.aspx?FamilyID=e59c3964-672d-4511-bb3e-2d5e1db91038&DisplayLang=en
Safari WebDevAdditions: Web Devloper toolbar for Safari, thanks to scotty Delicious for the link.
http://www.laszlo.com.pl/webdev/index.php
Web Development Bookmarklets: Safari, Opera and IE bookmarklets for web developers
http://www.squarefree.com/bookmarklets/webdevel.html#test_styles
Quick Lookup: Quickly look up PHP, MySQL, JS and CSS syntaxs.
http://ql.aonic.net/
BrowserShot: Take shots of your site with various browsers / OS’s. Takes a 1-2 hours to complete a job run.
http://browsershots.org
Templating
Open Source Web Design: Free CSS / XHTML templates which you can easily port to MODx
http://www.oswd.org/
FamFamFam: Free 16x16 Icons (PNG format), great for menus etc
http://www.famfamfam.com/lab/icons/
Statistics Packages
Trace Watch: Once you get used to the page analysis system its very good. Uses PHP so logs Search Engines
http://www.tracewatch.com/
AWSats: Uses website logs, but can use PHP script if you don’t have log access
http://awstats.sourceforge.net/
Mint: Uses JS so doesn’t record Search Engines but very flexible. See
http://modxcms.com/mint-modx.html for MODx intergration
http://haveamint.com/
Slimstats: A lightweight stats program. See
http://modxcms.com/slimstat-plugin-for-modx.html for MODx intergration
http://wettone.com/code/slimstat
phpMyVisites: Another PHP web stat application, has nice vistor maps. Program comes in English, but demo seems to lack translation.
http://www.phpmyvisites.net/
BBClone: As they say, its a counter on steroids, not really stats.
http://bbclone.de/
Visitorville: Commercial package that gives statitics a 3D "Sims" apperance, very orgianl
http://www.visitorville.com/
Search Engines
Kartoo: Visual results, either love or hate it.
http://www.kartoo.com/
Teoma: Looks at natural occurring communites
http://www.teoma.com/
Previewseek: Shows page thumbnails (doesn’t require FireFox extension)
http://beta.previewseek.com/
Clusty: Clustering search results
http://clusty.com/
Blinkx TV: TV & video searching
http://www.blinkx.tv/
Google Base: Put non website stuff on to Google
http://base.google.com/