CONTINUOUS INTERNET TELEMETRY24H DRIFT48,209 material changesacross 44,537 domains · 24h to ~80m ago · +13,592 vs yesterdaySHIFT66 domains moved DNS from koaladns.com to magpiedns.coma coordinated move · 24hNOW537 curated domains not reachablelast probe, steadySITE ERRORS33,882 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 144,834 sites429 rate-limit / 403 bot-block, a posture signal

arb.org.uk

Observed Aug 2, 2026, 11:29 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of arb.org.uk was taken 3d ago

arb.org.uk is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting arb.org.uk 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 arb.org.uk Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Verify this receipt yourself + Watch this domain
Up right now
Email byMimecast
Secured byDigiCert
10 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat arb.org.uk actually stands on - every host below is a signed observation
arb.org.uk
A / AAAA
20.108.20.140
unattributedserves the site
NS
ns0.ukfast.netns1.ukfast.net
ukfast.netanswers its DNS
MX
eu-smtp-inbound-2.mimecast.comeu-smtp-inbound-1.mimecast.com
Mimecastreceives its email
TLS
*.arb.org.uk
DigiCert Incissued its certificate

DNS Records

A 1

  • 20.108.20.140

MX 2

  • 10eu-smtp-inbound-2.mimecast.com
  • 10eu-smtp-inbound-1.mimecast.com

TXT 8

  • MS=413A8F255F8420B1C69BA4487047E9AA42853E2E
  • <<KL-%-DF$>>
  • 4jv5BMrOKBgM9tepZr1Ht4d3XTM7745k+1ku5iBUjQoG9Gsh3aR9Mn4zASF8Pbo7kWEoIxDi4mHxp12hqOl95Q==
  • 077xh5bsrj4fyd31pd8kkz94xb7yffrq
  • v=spf1 include:eu._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.mailanyone.net include:kallidus-suite.com ip4:20.58.22.103 ip4:20.49.202.3 ip4:51.11.109.172 ip4:137.116.240.241 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:134.128.64.0/19 ip4:134.128.96.0/19 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ip4:81.145.136.32/28 ip4:20.49.129.243 include:_spf.salesforce.com include:_spf.intacct.com ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 include:_spf.eu.mailgun.org -all
  • apple-domain-verification=GE1gqh8icJk6Iugn
  • intacct-esk=1DFCD337F50047B7E0634906410A4A84
  • intacct-esk=15B92C08FCBE53E6E0634306410A8AD4

NS 2

  • ns0.ukfast.net
  • ns1.ukfast.net

SOA 1

  • ns0.ukfast.net support.ukfast.co.uk

DMARC_RECORDS 1

  • v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-rua@dmarc.service.gov.uk,mailto:re+hwwgpzivywi@dmarc.postmarkapp.com; aspf=r;

MTA_STS_RECORDS 1

  • v=STSv1; id=20230630

TLS Certificates (3)

Common NameIssuerExpires
*.arb.org.uk C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=GeoTrust TLS RSA CA G1 Thu, 24 Sep 2026 23:59:59 +0000
GeoTrust TLS RSA CA G1 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Tue, 02 Nov 2027 12:23:37 +0000
DigiCert Global Root G2 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Fri, 15 Jan 2038 12:00:00 +0000

Subdomains (10)

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_a4da01a703210fb8
Output Hash
50fab04c9dc958f5a42e4387965be694cab082e410245ad86e2d83b558fa6269
Signature
ed25519:91f7059b45222c26cd2507ac839242b12f4dddf3d79e95d40a1795548cb66143dd2978333d089d97c968e4443c0f93f8404980915319074c56ce2d22aaf1de0e
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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