Hosting & Website Optimization Tools

List of Tools to troubleshoot, optimize and analyse websites and hosting

Troubleshooting

Pingability - DNS Troubleshooting
http://pingability.com/

Robtex - Dig through IP's DNS and hostnames
http://www.robtex.com/

Optimization

Load Speed Analysis
Look at all objects loaded from a particular URL.
Find the slowest objects or improve the loadtime of pictures and cluttered CSS

Pingdom
http://tools.pingdom.com/

Yahoo! Slow
http://developer.yahoo.com/yslow/

PageSpeed
http://code.google.com/speed/page-speed/

Monitoring

Wormly
http://www.wormly.com/

Pingdom
http://www.pingdom.com/
Free account: 1 check 1 minute frequency monitor

The famous pingdom tool
http://tools.pingdom.com/

Further Reading - Articles and Tool Reviews

Ultimate Guide To Web Optimization (Tips & Best Practices)
http://www.hongkiat.com/blog/ultimate-guide-to-web-optimizat...