SpyOnWeb

research tool

Check out our API

We take the information from public sources, then structure it for your quick and convenient search for the websites that probably belong to the same owner.

243,101,616 Unique Domains
21,444,939 Unique IP Addresses
6,454,165 Unique Nameservers
11,994,159 Unique Analytics IDs
1,779,188 Unique Adsense IDs