New AS-Lookup

Serversniff offers a new script and API-script doing lookups for the Autonomous-System of an IP or hostname.

Backend for this script is currently team cymrus very fine AS-Lookup - this should be fine unless we see a really huge demand for this. We used to operate a pwhois-like BGP-Parser that offered a bit more information, but the work/requestcount-ratio brought us to drop this service. Finally, we brought it back on using the cymru-backend.

tom