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.com5mxb-00143702.gslb.pphosted.com
TXT 39
airtable-verification=d9386eea22fce5ee0d01209512aa7706apple-domain-verification=XRKeuEf5cWtc2oDCairtable-verification=644c0c83b6807a2a10c20d4cf57505d7teamviewer-sso-verification=4a24e296450940f48ac4faba9a172fc0paloaltonetworks-site-verification=b6c919476067691db128e9375b002b801db8ab2a1de767bc27acb829530c59bdatlassian-domain-verification=C34TI2IiJOrziv9uyV2Yva6ZoRRCSZPjqc15wZASQfypHgNMl6esmkpDsYYXhjk7docusign=0ead29a6-1c9c-4b0c-865a-85a5a127e776intersight=3c7c5c60389a6b81830ef696f8761bc121ecf3f10d7cf8eef08f66af90451a8fairtable-verification=00fd4b2a11b394abba9d040c40502707mongodb-site-verification=ucqyDX29txaTTi3K4euWVtieT0zCXRrg
NS 5
dns103.comcast.netdns102.comcast.netdns101.comcast.netdns105.comcast.netdns104.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 receiptEd25519 Receipt
- Receipt ID
9660677c-d976-48ce-8f01-97ea3a7cc52c- Output Hash
6cbe7429163594329414598d00fde0b5e41ed097ec141c70e0778bae264af8ff- Signature
ed25519:5004616aa29a5ad3e8030beea1dcb157153e55a3a4d6835d482c8ae65c59358f36d17addabc785513fb2ff6c6bddbf3a491f5ca479cb7b913649d22ba1d0c00a- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast