CONTINUOUS INTERNET TELEMETRY24H DRIFT925 material changesacross 748 domains · +779 vs yesterdayDNS DRIFT25 domains changed DNS providertop destination cloudflare.com · +25 vs yesterdayEMAIL DRIFT9 domains switched email providertop destination outlook.com · +8 vs yesterdayCERT DRIFT23 domains switched issuing CA24h · +22 vs yesterdayNOW2,672 curated domains not answering-1,662 vs yesterdayERRORS23,977 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED90,547 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT925 material changesacross 748 domains · +779 vs yesterdayDNS DRIFT25 domains changed DNS providertop destination cloudflare.com · +25 vs yesterdayEMAIL DRIFT9 domains switched email providertop destination outlook.com · +8 vs yesterdayCERT DRIFT23 domains switched issuing CA24h · +22 vs yesterdayNOW2,672 curated domains not answering-1,662 vs yesterdayERRORS23,977 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED90,547 throttled or blocked our scanner429 rate-limit / 403 bot-block

chiefs.com

Observed Jul 21, 2026, 17:14 UTC (3h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Email byMimecast
Secured byLet's Encrypt
Also usesGoogle Search Console
1 subdomain · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat chiefs.com actually stands on - every host below is a signed observation
chiefs.com
A / AAAA
151.101.193.55151.101.129.55151.101.1.55151.101.65.55
unattributedserves the site
NS
udns1.ultradns.netudns2.ultradns.net
ultradns.netanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
TLS
clubs.nfl.com
Let's Encryptissued its certificate

DNS Records

A 4

  • 151.101.193.55
  • 151.101.129.55
  • 151.101.1.55
  • 151.101.65.55

MX 2

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

TXT 3

  • google-site-verification=Y3sYI2f7arciXsZuZYkEbAGkeuo95lsdKdvjU3P5dqE
  • v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ip4:204.141.129.80 ip4:204.141.129.81 ip4:204.141.133.80 ip4:204.141.106.120 ip4:54.236.128.150 ip4:54.236.109.30 ~all
  • v=DMARC1;p=reject;fo=1;rua=mailto:infrastructuretechnologyteam@chiefs.nfl.com;ruf=mailto:infrastructuretechnologyteam@chiefs.nfl.com

NS 2

  • udns1.ultradns.net
  • udns2.ultradns.net

SOA 1

  • udns1.ultradns.net dm\.dnsrequest.nfl.com

TLS Certificates (3)

Common NameIssuerExpires
clubs.nfl.com C=US, O=Let's Encrypt, CN=YR2 Tue, 22 Sep 2026 17:32:25 +0000
YR2 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; nothing leaves your machine.

Verify this receipt

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

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

Ed25519 Receipt

Receipt ID
rcpt_ea2783138aea304a
Output Hash
ed5d02a1aa2867b5d2aff4eeaf9bbc295f2784c230411ed108ee46b7b47a28d8
Signature
ed25519:0dc2313223a77dcb7d5f3940e6222481d5b0e6e222abc39f8b1827a5d6aa08bc81ab3a2cdacb96c22fb99965ad7739a2c9f0a44422e7976d7acfaf8dec3bea0f
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
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