Nice tools: http://www.gwebtools.com/

Nice Tools on gwebtools.com. Not really much unique stuff, and not
really "Amazing tools to increase your Network and Website
performance", but still fast and with some nice ideas.
Personally i don't like totally anonymous sites like gwebtools without
any name on it - but the author might have his/her reasons.
 
http://webwiki.de/g/gw/gwe/www.gwebtools.com/htmlreport
http://webwiki.de/b/bl/blo/blog.gwebtools.com/htmlreport
 
Be sure to check out the hosts-on-ns-function. It supports only
.com/.net, but it's using the .com/.net-zonefiles and is therefore
much more complete than Serversniffs NS-Catalog at
http://serversniff.net/nscatalog when it comes to these two tlds.
 
tom