biriukov.dev

Observed Aug 11, 2026, 05:15 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of biriukov.dev was taken 2d ago

biriukov.dev is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting biriukov.dev 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 biriukov.dev Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Runs onFastly
Secured byLet's Encrypt
Registered withNamecheap Inc.
Also usesGoogle Search Console
IPv6 · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat biriukov.dev actually stands on - every host below is a signed observation
biriukov.dev
A / AAAA
185.199.109.153185.199.111.153185.199.110.153185.199.108.153+4 more
Fastlyserves the site
NS
dns1.registrar-servers.comdns2.registrar-servers.com
registrar-servers.comanswers its DNS
MX
eforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.com+1 more
registrar-servers.comreceives its email
TLS
biriukov.dev
Let's Encryptissued its certificate

DNS Records

A 4

  • 185.199.109.153
  • 185.199.111.153
  • 185.199.110.153
  • 185.199.108.153

AAAA 4

  • 2606:50c0:8000::153
  • 2606:50c0:8001::153
  • 2606:50c0:8002::153
  • 2606:50c0:8003::153

MX 5

  • 10eforward1.registrar-servers.com
  • 10eforward2.registrar-servers.com
  • 10eforward3.registrar-servers.com
  • 15eforward4.registrar-servers.com
  • 20eforward5.registrar-servers.com

TXT 2

  • v=spf1 include:spf.efwd.registrar-servers.com ~all
  • google-site-verification=rlvzO3MpBq-DfAA9BaCEI_fUEv8Gudk1fqyCcpRaIEY

NS 2

  • dns1.registrar-servers.com
  • dns2.registrar-servers.com

SOA 1

  • dns1.registrar-servers.com hostmaster.registrar-servers.com

TLS Certificates (3)

Common NameIssuerExpires
biriukov.dev C=US, O=Let's Encrypt, CN=YR1 Sun, 20 Sep 2026 14:52:50 +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.

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Ed25519 Receipt

Receipt ID
rcpt_103314c6d9614239
Output Hash
d95892a8e6a4bfdf7c0b0efb28a13ebbcb3fdeb9999b23b170fbc331787ec1b7
Signature
ed25519:115aaf97f1b70faa7494a958f87b2670f7771b859d04a83fd1db6804109e84201d4c94083888f9dd84f44d79e9b69b1f46717d4e6c8931aa535f346b84558f04
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT45,300 material changesacross 43,169 domains · 24h to ~80m ago · -570 vs yesterdayROTATION56 domains moved DNS from koaladns.com to magpiedns.com, 53 moved backa rotation loop, not a migration · 24hCERT DRIFT1 domains switched issuing CA24hREGISTRAR DRIFT2 changed registrar24hNOW498 curated domains not reachablelast probe, steadySITE ERRORS36,439 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 115,940 sites429 rate-limit / 403 bot-block, a posture signal