bicycletutor.com

Observed Aug 10, 2026, 02:12 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of bicycletutor.com was taken 3d ago

bicycletutor.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting bicycletutor.com 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 bicycletutor.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Guarded by a firewall
Runs onCloudflare
Secured byLet's Encrypt
Registered withGoDaddy.com, LLC
majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bicycletutor.com actually stands on - every host below is a signed observation
bicycletutor.com
A / AAAA
104.237.158.18
Cloudflareserves the site
NS
ns2.serverhostgroup.comns3.serverhostgroup.comns1.serverhostgroup.com
serverhostgroup.comanswers its DNS
MX
bicycletutor.com
bicycletutor.comreceives its email
TLS
*.bicycletutor.com
Let's Encryptissued its certificate

DNS Records

A 1

  • 104.237.158.18

MX 1

  • 0bicycletutor.com

TXT 1

  • v=spf1 a mx include:relay.mailchannels.net ?all

NS 3

  • ns2.serverhostgroup.com
  • ns3.serverhostgroup.com
  • ns1.serverhostgroup.com

SOA 1

  • ns1.serverhostgroup.com rasmus\.boye.gmail.com

TLS Certificates (3)

Common NameIssuerExpires
*.bicycletutor.com C=US, O=Let's Encrypt, CN=YR1 Sun, 11 Oct 2026 17:13:47 +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_6b160550716c3433
Output Hash
d891ec8d5ae2d16ec5b106c0162dbd63fea97a394c3f4d2f4c91a2ed5f12b7b5
Signature
ed25519:33ba70541b873474b5f9e40bcb6ee0b7b6fb04706a40179617bb96b19c25175e3904416560305b3f77d1ae6edd5bb21b76f5ac2e7122b423d1f8ac9f94e49009
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT45,300 material changesacross 43,169 domains · 24h to ~2h ago · -570 vs yesterdayROTATION57 domains moved DNS from koaladns.com to magpiedns.com, 52 moved backa rotation loop, not a migration · 24hCERT DRIFT1 domains switched issuing CA24hREGISTRAR DRIFT2 changed registrar24hNOW498 curated domains not reachablelast probe, steadySITE ERRORS36,455 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 115,917 sites429 rate-limit / 403 bot-block, a posture signal