Dear colleagues, In November of last year, we released version 1.0.0 of RIPE IPmap. The main feature of that version was the new latency engine, but we also included a prototype of the “reverse-dns” engine, which used very basic pattern matching of hostnames from PTR to provide location guesses. We are pleased to announce that with v1.1.0 the reverse-dns engine has received a major upgrade, allowing it to provide much better geolocation answers through pattern analysis of the entire IPmap “latency” and “worlds” datasets, with daily analysis performed mostly thanks to the sc_hoiho tool from CAIDA’s scamper toolkit. More information about the new engine, as well as links to information on the sc_hoiho tool and its theoretical underpinnings can be found at: https://ipmap.ripe.net/docs/01.manual/#reverse-dns As well as the new and improved reverse-dns engine, the suggestion system has been improved to better combine results from the various geolocation engines, and the "single-radius" engine has been more closely integrated into the "latency" engine, with both offering basic anycast detection. As always, you can get started with the API with the IPmap docs at: https://ipmap.ripe.net/docs/ Kind regards, Chris Amin RIPE NCC