We’ve added two pieces of technical information about each phish URL on the PhishTank phish detail page: ASN and whois.

Look for the new “View Technical Details” tab underneath the voting links.

First, we provide the ASN number. ASN stands for Autonomous System Number, and it’s a way of uniquely identifying networks on the Internet. For more details, see the Wikipedia entry. RSS feeds by ASN are still on the to do list. Stay tuned.

Second, when available, we provide the whois information. Depending on the registrar, this data may or may not be useful, well-formatted (we echo it back to you pretty much as is), or available. But we’ll try to provide it for every suspected phish going forward, and I’m inquiring about better data sources. (If you are a better data source, please get in touch!)

This data is not yet available via the API, but we plan to add it eventually, starting with ASN.