Here are some quick tools and scripts I’ve put together over the years:

dWHO.IS Lookup


Pingdom Probe IPs

Pingdom helpfully offer a RSS feed of their monitoring nodes.

I created a simple script which extracts the IPs from this XML feed and present a list of IPs in both plain-text and HTML.

VAT Number Validation

Simple validator for EU VAT numbers to see immediately if it’s valid.