bir.ch

Observed Aug 11, 2026, 00:14 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of bir.ch was taken 5d ago

bir.ch is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting bir.ch under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch bir.ch Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesAnthropicFacebook/MetaGoogle Search ConsoleHave I Been PwnedPs CdWork Accounts
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bir.ch actually stands on - every host below is a signed observation
bir.ch
A / AAAA
54.243.86.2834.202.203.4718.211.166.153
Cloudflareserves the site
NS
sean.ns.cloudflare.comvivienne.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
smtp.google.com
Google Workspacereceives its email
TLS
bir.ch
Let's Encryptissued its certificate

DNS Records

A 3

  • 54.243.86.28
  • 34.202.203.47
  • 18.211.166.153

MX 1

  • 1smtp.google.com

TXT 9

  • anthropic-domain-verification-4n262p=IxaJJBtT67EiqDWZSSg4eF5gC
  • facebook-domain-verification=g7e2p02p0pk94cu2o1wm852bwk5naj
  • google-site-verification=O34h0YMHyOFUzN8NhJxzVJyzlwYWTQbzb78QcwAyozg
  • google-site-verification=SF__iajwj_XnA6mazz477g763cLm3DQ3b2aP_CALIKA
  • have-i-been-pwned-verification=dweb_25579kl2kjwwhtrktp84bca1
  • one-time-verification=a79be250-99e9-45df-bb8c-d89b796bb12c
  • ps-cd-verification=ae1e6ada-7de1-460d-846a-66a1592043a0
  • v=spf1 include:_spf.google.com include:amazonses.com ~all
  • work-accounts-domain-verification=7vpcnk7U0l9wFFd1YLCqdK41e4i7t4

NS 2

  • sean.ns.cloudflare.com
  • vivienne.ns.cloudflare.com

SOA 1

  • sean.ns.cloudflare.com dns.cloudflare.com

CAA 19

  • iodef "mailto:support@bir.ch"
  • issue "amazon.com"
  • issue "amazonaws.com"
  • issue "amazontrust.com"
  • issue "awstrust.com"
  • issue "comodoca.com"
  • issue "digicert.com; cansignhttpexchanges=yes"
  • issue "letsencrypt.org"
  • issue "pki.goog; cansignhttpexchanges=yes"
  • issue "ssl.com"

DMARC_RECORDS 1

  • v=DMARC1; p=reject; adkim=s; aspf=r; rua=mailto:24a7c5d26393410f8039e90e80eb9ba8@dmarc-reports.cloudflare.net;

TLS Certificates (3)

Common NameIssuerExpires
bir.ch C=US, O=Let's Encrypt, CN=YR1 Fri, 18 Sep 2026 03:12:35 +0000
YR1 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 (0)

None observed.

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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_ed3ba4385a249131
Output Hash
94cbc67049a2db85983d0a00b2dbc5ce5d4dced56b5707c4a19e6203d05c440d
Signature
ed25519:30656a6c19bf6b5bf31349f647bc5947d3470c01b637dcf2514d717d0970d559c56e9269bde8ecfd66c0a2bddbc9f9ef05451d353e8ea10b04425d94177e0609
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT39,653 material changesacross 38,279 domains · 24h to ~3h ago · -3,854 vs yesterdayROTATION63 domains moved DNS from magpiedns.com to koaladns.com, 55 moved backa rotation loop, not a migration · 24hNOW496 curated domains not reachablelast probe, steadySITE ERRORS36,305 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 117,478 sites429 rate-limit / 403 bot-block, a posture signal