Shortly after the AWS outage, I was looking around if I can easily see what pages are running on what cloud providers.
I could not find any suitable tool. The closest was simple iplookup/whois.
I though there must be a better way.
It looks like every decent cloud provider (Looking at you, Microsoft) provides public lists of IP ranges. But there was no tool to check it against given website.
So I decided to create easy way to lookup this information.
In the first version, I scanned the whole website, grabbed all the links resolved the DNS, compared it to the list.
In current version, I only check the requested domain.
I hope you will find it useful.