CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 33,601 material changesacross 31,525+ domains · 24h to ~7h ago · a floor, 17h of 24 walkedNOW553 curated domains not reachablelast probe, steadySITE ERRORS34,011 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 154,849 sites429 rate-limit / 403 bot-block, a posture signal

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.com
  • 10us-smtp-inbound-2.mimecast.com

TXT 4

  • MS=ms37562900
  • MS=ms53497286
  • MS=ms59909043
  • v=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.com
  • ns2.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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for drdobbs.com. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for drdobbs.com <a href="https://domaindrift.io/t/drdobbs.com"> <img src="https://domaindrift.io/badge/drdobbs.com.svg" width="300" height="64" alt="DomainDrift signed observations for drdobbs.com"> </a>

Ed25519 Receipt

Receipt ID
rcpt_47fd2512f1f31dba
Output Hash
2ce139b29825dc9fe7c58fb91b525ee649bf9e21f9e6120e02e81938bded39ba
Signature
ed25519:64b23a45b5a9ca049aacff7e05656dc59c0481fc08b240dd29f8e2a9ea5607323c3305c92867380c6920d1dbc15bb8737fc6d07fb912ec9171e2c8216069bd08
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser