CONTINUOUS INTERNET TELEMETRY24H DRIFT2,825 material changesacross 2,510 domains · -573 vs yesterdayDNS DRIFT22 domains changed DNS providertop destination cloudflare.com · -5 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination h-email.net · -3 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,327 curated domains not answering-6,391 vs yesterdayERRORS10,948 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT2,825 material changesacross 2,510 domains · -573 vs yesterdayDNS DRIFT22 domains changed DNS providertop destination cloudflare.com · -5 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination h-email.net · -3 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,327 curated domains not answering-6,391 vs yesterdayERRORS10,948 responded with an errorlast probe · 5xx / 404 / 429 / 403

bt.com

Observed 2026-07-13T00:05:24.310354858+00:00 (15h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onIncapsula
Email byMicrosoft 365
Secured byDigiCert
Also usesGoogle Search ConsoleFacebook/MetaAtlassian
11 subdomains · telecom
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bt.com actually stands on - every host below is a signed observation
bt.com
A / AAAA
45.60.65.2345.60.72.23
Incapsulaserves the site
NS
EDDNS0.bt.comDYDNS1.bt.comDYDNS0.bt.comEDDNS1.bt.com
bt.comanswers its DNS
MX
btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.bt.com
DigiCert Incissued its certificate

DNS Records

A 2

  • 45.60.65.23
  • 45.60.72.23

MX 1

  • 10btgroupcloud-mail-onmicrosoft-com.mail.protection.outlook.com

TXT 54

  • _m3f8ep2c1pbboco1rh90guadk9uqjla
  • globalsign-domain-verification=CE9FD7B27BF880B6F922A3C2CC99BB0A
  • e_mKF3VwiervayPJ5VUm
  • _7z0ek0xby5dewx0vdggiubvqtnrbc1x
  • autodesk-domain-verification=vmIPnr1GseHte8Ol4tdd
  • vrelnrisb1a3v4qqq54fjbjbbs
  • google-site-verification=jqIuLoI2xscRdokU7DZrf026zMImlQIQwAHVT3bgMUk
  • MS173292
  • globalsign-domain-verification=DAA742FBA19F6967D3D3A8DC2BE96867
  • _2m131ofp1dqn1d8ff97ufl265w6be3d

NS 4

  • EDDNS0.bt.com
  • DYDNS1.bt.com
  • DYDNS0.bt.com
  • EDDNS1.bt.com

SOA 1

  • EDDNS0.bt.com zzdnsr.bt.com

SRV 1

  • nxpfs.ucfederationcloud.com:5269 p20

TLS Certificates (2)

Common NameIssuerExpires
www.bt.com C=US, O=DigiCert Inc, CN=GeoTrust EV RSA CA G2 Thu, 04 Mar 2027 23:59:59 +0000
GeoTrust EV RSA CA G2 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Tue, 02 Jul 2030 12:42:57 +0000

Subdomains (11)

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

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

Ed25519 Receipt

Receipt ID
6213b73e-a9c1-4058-a951-a62d28165819
Output Hash
b1a51436b9c2bd5d6bb1500aee49b5f4e384f8b871e1d1e05d12be5e0a2ec442
Signature
ed25519:e9d044bb053b96e49de200dc65f30f4c1a3663d5f948b97fd711f22bc41e95fc5a9388b54c4faea28463bf3105e4ce34d3ce82d5ec2c8811fb9fc39b01aa6d0d
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser