IP History shows a free A/AAAA passive-DNS sample for 8be7d9us-den6190-uscom.36a9091d-0a28-4319-a14b-74d81b967cfa.92141943c0e7.i2.checkpoint.com after security verification. For complete DNS history, export and API access, open Profundis. You can also browse domains or learn more.