CONTINUOUS INTERNET TELEMETRY24H DRIFT1,913 material changesacross 1,718 domains · -165 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination alidns.com · +1 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.comCERT DRIFT46 domains switched issuing CA24hNOW1,660 curated domains not answering+534 vs yesterdayERRORS11,774 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED31,858 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT1,913 material changesacross 1,718 domains · -165 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination alidns.com · +1 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.comCERT DRIFT46 domains switched issuing CA24hNOW1,660 curated domains not answering+534 vs yesterdayERRORS11,774 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED31,858 throttled or blocked our scanner429 rate-limit / 403 bot-block

comcast.com

Observed Jul 17, 2026, 19:58 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding
Email byProofpoint
Registered withCSC Corporate Domains, Inc.
Also usesDocuSign1PasswordDockerFacebook/MetaGoogle Search ConsoleAtlassian
fortune_500
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat comcast.com actually stands on - every host below is a signed observation
comcast.com
A / AAAA
96.99.227.0
unattributedserves the site
NS
dns103.comcast.netdns102.comcast.netdns101.comcast.netdns105.comcast.net+1 more
comcast.netanswers its DNS
MX
mxa-00143702.gslb.pphosted.commxb-00143702.gslb.pphosted.com
Proofpointreceives its email

HTTPS probe

server_error Server error (5xx) 521 Server Error
HTTP status521
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time886 ms
DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

  • 96.99.227.0

MX 2

  • 5mxa-00143702.gslb.pphosted.com
  • 5mxb-00143702.gslb.pphosted.com

TXT 39

  • airtable-verification=d9386eea22fce5ee0d01209512aa7706
  • apple-domain-verification=XRKeuEf5cWtc2oDC
  • airtable-verification=644c0c83b6807a2a10c20d4cf57505d7
  • teamviewer-sso-verification=4a24e296450940f48ac4faba9a172fc0
  • paloaltonetworks-site-verification=b6c919476067691db128e9375b002b801db8ab2a1de767bc27acb829530c59bd
  • atlassian-domain-verification=C34TI2IiJOrziv9uyV2Yva6ZoRRCSZPjqc15wZASQfypHgNMl6esmkpDsYYXhjk7
  • docusign=0ead29a6-1c9c-4b0c-865a-85a5a127e776
  • intersight=3c7c5c60389a6b81830ef696f8761bc121ecf3f10d7cf8eef08f66af90451a8f
  • airtable-verification=00fd4b2a11b394abba9d040c40502707
  • mongodb-site-verification=ucqyDX29txaTTi3K4euWVtieT0zCXRrg

NS 5

  • dns103.comcast.net
  • dns102.comcast.net
  • dns101.comcast.net
  • dns105.comcast.net
  • dns104.comcast.net

SOA 1

  • dns101.comcast.net domregtech.comcastonline.com

TLS Certificates (0)

None.

Subdomains (17)

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 comcast.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
9660677c-d976-48ce-8f01-97ea3a7cc52c
Output Hash
6cbe7429163594329414598d00fde0b5e41ed097ec141c70e0778bae264af8ff
Signature
ed25519:5004616aa29a5ad3e8030beea1dcb157153e55a3a4d6835d482c8ae65c59358f36d17addabc785513fb2ff6c6bddbf3a491f5ca479cb7b913649d22ba1d0c00a
Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent
(genesis)
Plane
fast
Verify this in your browser