CONTINUOUS INTERNET TELEMETRY24H DRIFT2,038 material changesacross 1,847 domains · +79 vs yesterdayDNS DRIFT25 domains changed DNS providertop destination parity.domains · +6 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.com · +5 vs yesterdayCERT DRIFT1 domains switched issuing CA24h · -1 vs yesterdayNOW3,476 curated domains not answeringlast probe, steadyERRORS8,527 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,336 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT2,038 material changesacross 1,847 domains · +79 vs yesterdayDNS DRIFT25 domains changed DNS providertop destination parity.domains · +6 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.com · +5 vs yesterdayCERT DRIFT1 domains switched issuing CA24h · -1 vs yesterdayNOW3,476 curated domains not answeringlast probe, steadyERRORS8,527 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,336 throttled or blocked our scanner429 rate-limit / 403 bot-block

comcast.net

Observed 2026-07-15T04:26:53.348Z (11h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding
Runs onCloudflare
Registered withCSC Corporate Domains, Inc.
Also usesGoogle Search Console
24 subdomains · tranco_1k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat comcast.net actually stands on - every host below is a signed observation
comcast.net
A / AAAA
96.99.227.0
Cloudflareserves the site
NS
dns101.comcast.netdns102.comcast.netdns104.comcast.netdns105.comcast.net+1 more
comcast.netanswers its DNS
MX
mx2h1.comcast.netmx1.mxge.comcast.netmx1c1.comcast.netmx2.mxge.comcast.net+4 more
comcast.netreceives its email

HTTPS probe

server_error Server error (5xx) 521 Server Error
HTTP status521
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time79 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 8

  • 50mx2h1.comcast.net
  • 5mx1.mxge.comcast.net
  • 50mx1c1.comcast.net
  • 5mx2.mxge.comcast.net
  • 50mx2c1.comcast.net
  • 50mx2a1.comcast.net
  • 50mx1h1.comcast.net
  • 50mx1a1.comcast.net

TXT 7

  • v=spf1 ip4:96.103.146.48/28 ip4:96.102.19.32/28 ip4:96.102.200.0/28 include:_spfv6.comcast.net include:_spf.mdp.comcast.net include:_ipspf.yahoo.com ~all
  • yahoo-verification-key=t0ftaXXV8MB1pon3jzauB3Fz5ezusB2l9jy3GVNPQRw=
  • google-site-verification=g7KA0NF2z-1XIBz7vWW88zvVYlJeiG56UPOYHF2tqY0
  • google-site-verification=gxiEHT6grgMJE52lhl4OYIt5Q3XpA5qt-8Okrxq-mcE
  • v=DMARC1;p=reject;sp=reject;rua=mailto:dmarc-rua@dmarctest.comcast.net
  • v=STSv1; id=1667432290;
  • v=DNSSEC1; (detected)

NS 5

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

SOA 1

  • dns101.comcast.net domregtech.comcastonline.com

TLS Certificates (0)

None.

Subdomains (24)

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

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

Ed25519 Receipt

Receipt ID
1a36cc05-c6c5-48f1-bd6c-ad781b23d18b
Output Hash
4d92bcc4597fdffe3e3fc0fc464db14ac54c8d11c781b16623cb288c5b6f8eeb
Signature
ed25519:1229c16b5e06f780c755335eb0f99b2d162876b12c0d5790db6c821307fdc0b958cdb3aff5d190424c4d59ac4111e9e9e8a662ed82c9b10f5d7b51455c6fe801
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser