About
Ansafi is technographics for B2B sales teams. We observe which companies run which web technologies, month by month, and sell that as lead lists and change alerts you can act on: who just switched off your competitor's product, when they did it, and who to email about it.
What makes us different is the source. Detection comes from HTTP Archive, an Internet Archive project backed by Google, Mozilla, Fastly and Akamai, which has loaded millions of real websites in a real browser every month since 2011 and published everything openly.
That matters twice over. You do not have to trust a private crawler you cannot inspect — the dataset underneath is public. And because the archive is continuous, we can tell you not just what a company runs but when they changed it, which is the part a rep can actually act on.
We are not the biggest dataset and we say so on the coverage page. What we offer instead is an open source you can verify, the whole stack on every row, and a straight answer about what we cannot see.
I built Ansafi because every technographics tool I tried asked me to trust a crawler I could not inspect, and priced the answer per record so that asking a bigger question cost more. The underlying crawl here is public and free — my work is turning it into something a rep can act on the same morning, and being honest about the months and segments where it is thin. If a row looks wrong, open the site and check it. That is the whole promise.