IP History shows a free A/AAAA passive-DNS sample for 1d2715au-kos2228-aucom.a6177231-942c-4467-b965-6cdc9ab0d410.e9d7d8510afd.i2.checkpoint.com after security verification. For complete DNS history, export and API access, open Profundis. You can also browse domains or learn more.