CONTINUOUS INTERNET TELEMETRY24H DRIFT35,821 material changesacross 32,384 domains · 24h to ~40m agoSHIFT26 domains moved DNS from brainydns.com to koaladns.coma coordinated move · 24hNOW559 curated domains not reachablelast probe, steadySITE ERRORS34,062 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,368 sites429 rate-limit / 403 bot-block, a posture signal

arcf.org

Observed Aug 2, 2026, 15:59 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of arcf.org was taken 2d ago

arcf.org is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting arcf.org 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 arcf.org Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Email byMicrosoft 365
Secured byLet's Encrypt
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat arcf.org actually stands on - every host below is a signed observation
arcf.org
A / AAAA
167.99.159.95
unattributedserves the site
NS
ns91.worldnic.comns92.worldnic.com
worldnic.comanswers its DNS
MX
arcf-org.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.arcf.org
Let's Encryptissued its certificate

DNS Records

A 1

  • 167.99.159.95

MX 1

  • 10arcf-org.mail.protection.outlook.com

TXT 1

  • v=spf1 ip4:149.72.210.191 include:spf.protection.outlook.com -all

NS 2

  • ns91.worldnic.com
  • ns92.worldnic.com

SOA 1

  • NS91.WORLDNIC.COM namehost.WORLDNIC.COM

DMARC_RECORDS 1

  • v=DMARC1; p=reject; adkim=r; aspf=r; rua=mailto:rua@arcf.org; ruf=mailto:ruf@arcf.org; sp=reject; ri=84600; pct=100

TLS Certificates (2)

Common NameIssuerExpires
www.arcf.org C=US, O=Let's Encrypt, CN=E8 Sat, 22 Aug 2026 22:33:49 +0000
E8 C=US, O=Internet Security Research Group, CN=ISRG Root X1 Fri, 12 Mar 2027 23:59:59 +0000

Subdomains (1)

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

Ed25519 Receipt

Receipt ID
rcpt_90fd240a7a7914d3
Output Hash
b7ae9ff58b336ba9c0311b4a59ed2c75c9dc155196dda095ee0cb62b5eaea2f1
Signature
ed25519:ba8c681c3ba7683278434bd631e2266a40c612f7eae02d30f4a1c31e5448bacd1c3ca6d2172cbb79d696effb8fe004e51f38bf550e986f60fd43dbb9a258ca04
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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