drdobbs.com
Observed Jul 24, 2026, 21:17 UTC (6d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Not responding
Email byMimecast
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat drdobbs.com actually stands on - every host below is a signed observation
drdobbs.com
NS
ns1.ubmdns.comns2.ubmdns.com
ubmdns.comanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
DNS Records
MX 2
10us-smtp-inbound-1.mimecast.com10us-smtp-inbound-2.mimecast.com
TXT 4
MS=ms37562900MS=ms53497286MS=ms59909043v=spf1 mx include:spf.ubm-us.net include:spf-mcst.ubm.com ip4:64.18.0.0/20 ip4:192.155.57.15/32 ip4:192.155.57.171/32 -all
NS 2
ns1.ubmdns.comns2.ubmdns.com
SOA 1
ns1.ubmdns.com dns.cloudflare.com
TLS Certificates (0)
None.
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_47fd2512f1f31dba- Output Hash
2ce139b29825dc9fe7c58fb91b525ee649bf9e21f9e6120e02e81938bded39ba- Signature
ed25519:64b23a45b5a9ca049aacff7e05656dc59c0481fc08b240dd29f8e2a9ea5607323c3305c92867380c6920d1dbc15bb8737fc6d07fb912ec9171e2c8216069bd08- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast