CONTINUOUS INTERNET TELEMETRY24H DRIFT2,542 material changesacross 2,314 domains · -9 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination cloudflare.comEMAIL DRIFT5 domains switched email providertop destination google.comCERT DRIFT4 domains switched issuing CA24h · -1 vs yesterdayNOW3,331 curated domains not answeringlast probe, steadyERRORS10,917 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT2,542 material changesacross 2,314 domains · -9 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination cloudflare.comEMAIL DRIFT5 domains switched email providertop destination google.comCERT DRIFT4 domains switched issuing CA24h · -1 vs yesterdayNOW3,331 curated domains not answeringlast probe, steadyERRORS10,917 responded with an errorlast probe · 5xx / 404 / 429 / 403

bt.cn

Observed 2026-07-13T01:51:17.600Z (22h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Also usesGoogle Search Console
IPv6 · 18 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bt.cn actually stands on - every host below is a signed observation
bt.cn
A / AAAA
157.255.129.2512001:19f0:7001:54fc:5400:2ff:fe9b:97f9
Cloudflareserves the site
NS
vip4.alidns.comvip3.alidns.com
alidns.comanswers its DNS
MX
mail.bt.cn
bt.cnreceives its email

HTTPS probe

redirect Redirecting (3xx) 302 → https://www.bt.cn/
HTTP status302
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time205 ms
DNS resolutionNOERROR
Redirect chain
https://www.bt.cn/

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

DNS Records

A 1

  • 157.255.129.251

AAAA 1

  • 2001:19f0:7001:54fc:5400:2ff:fe9b:97f9

MX 1

  • 10mail.bt.cn

TXT 5

  • google-site-verification=T_Dp27KV30n1mzB0BwaVHZzAR7CYJ7E6DCNU30fz1CY
  • 202006140135465jku4f66s84knkzqfhymyot20dlksu51gbge4j93nmd9rutp4i
  • v=spf1 a mx -all
  • v=DMARC1;p=quarantine;rua=mailto:admin@bt.cn
  • v=DKIM1; (detected)

NS 2

  • vip4.alidns.com
  • vip3.alidns.com

SOA 1

  • vip3.alidns.com hostmaster.hichina.com

TLS Certificates (0)

None.

Subdomains (18)

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

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

Ed25519 Receipt

Receipt ID
3fbb1e55-a549-476c-9331-157166f66f46
Output Hash
8cf7766af5a3a1e5ca1618ae19bc30060144891a0d3898efc4af82b1e0bef1bc
Signature
ed25519:d01b52843f544374b7e04c448eabf68d9883031406b7be1f9d4c41b6ee54b19167b6b82536341ee0718cd8062c7ea0938275bf427bde60caa2b1863951043208
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser