masscec.com

Observed Aug 12, 2026, 03:44 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of masscec.com was taken 4d ago

masscec.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting masscec.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch masscec.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Email byMimecast
Secured byLet's Encrypt
Also usesMicrosoft 365AnthropicGoogle Search ConsoleOpenAIProwly
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat masscec.com actually stands on - every host below is a signed observation
masscec.com
A / AAAA
44.204.29.103
unattributedserves the site
NS
ns-1207.awsdns-22.orgns-1851.awsdns-39.co.ukns-409.awsdns-51.comns-542.awsdns-03.net
awsdns-22.org + awsdns-39.co.uk + moreanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
TLS
masscec.com
Let's Encryptissued its certificate

DNS Records

A 1

  • 44.204.29.103

MX 2

  • 10us-smtp-inbound-1.mimecast.com
  • 10us-smtp-inbound-2.mimecast.com

TXT 11

  • 0ed1fe018a1433b750d30748ec934e38deacf5e349
  • 7rhjdd01in1cqhfm7fja1pk6ke
  • MS=ms99057252
  • anthropic-domain-verification-s25w03=EC5h624ZnY8Adre8r1jK4pont
  • asv=5b8c570954dc056e43b18feb96d98889
  • google-site-verification=GLsuNWevsZqo9_27RcvT6FbJgLBmbjGt_bro7ycKvaM
  • j2phhhu1r6nu1nvshdjakk4s48
  • openai-domain-verification=dv-sCCopGjanOYo0HOkveroUJ9F
  • prowly-verification=87d20c66840d1468ab0d94d7514fa675c35d5ea06f590a783fe4361b45c3e87e
  • sprout-social-724911f3-bac8-4616-b6b9-81b4928e018e

NS 4

  • ns-1207.awsdns-22.org
  • ns-1851.awsdns-39.co.uk
  • ns-409.awsdns-51.com
  • ns-542.awsdns-03.net

SOA 1

  • ns-1851.awsdns-39.co.uk awsdns-hostmaster.amazon.com

DMARC_RECORDS 1

  • v=DMARC1; p=none;

TLS Certificates (3)

Common NameIssuerExpires
masscec.com C=US, O=Let's Encrypt, CN=YR1 Wed, 23 Sep 2026 22:37:48 +0000
YR1 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_5b13316bb01dc515
Output Hash
4700f6434b51752d9890c6a4a3c4b41c8a22d825296666a928f3de3d65c26e88
Signature
ed25519:ab2517f8db82c5d8eef0c369847961dec79d72ab0ac4718dc2b9ae71bc3a6c54cdea37cbf1acf65cc58bd09bce9a8b7d75fcb8c45a26411e159b2b7ec0c9ce0d
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT41,559 material changesacross 40,090 domains · 24h to ~2h ago · -1,948 vs yesterdayROTATION56 domains moved DNS from koaladns.com to magpiedns.com, 56 moved backa rotation loop, not a migration · 24hNOW496 curated domains not reachablelast probe, steadySITE ERRORS36,272 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 117,484 sites429 rate-limit / 403 bot-block, a posture signal