sis.gov.uk

Observed Aug 9, 2026, 19:46 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of sis.gov.uk was taken 2d ago

sis.gov.uk is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting sis.gov.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 sis.gov.uk Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Guarded by a firewall
Runs onCloudflare
Email byMicrosoft 365
Secured byDigiCert
Registered toD. Admin
Registered withCentral Digital & Data Office
Also usesGoogle Search Console
IPv6 · 1 subdomain · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat sis.gov.uk actually stands on - every host below is a signed observation
sis.gov.uk
A / AAAA
172.65.90.16172.65.90.17172.65.90.18172.65.90.19+4 more
Cloudflareserves the site
NS
keanu.ns.cloudflare.comsreeni.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
sis-gov-uk.mail.protection.outlook.com
Microsoft 365receives its email
TLS
sis.gov.uk
DigiCert Incissued its certificate

DNS Records

A 4

  • 172.65.90.16
  • 172.65.90.17
  • 172.65.90.18
  • 172.65.90.19

AAAA 4

  • 2606:4700:78::90:0:100
  • 2606:4700:78::90:0:101
  • 2606:4700:78::90:0:102
  • 2606:4700:78::90:0:103

MX 1

  • 0sis-gov-uk.mail.protection.outlook.com

TXT 11

  • MS=ms48982150
  • _2y7lww6hwdz2ic80m3uucx60b1v97jj
  • _az8ty5zzv7y2u2z7m3flu5rvfaipyjt
  • _aztw1stt0w0wtd8jgi199e1zhe5cf4w
  • _fqbw4k6cv5ez86zqml7xuo0q8ezxmv2
  • _iglvyalhksa83d3ikij6j3ocb0jrx1i
  • _j5u1sr9yv8wwjdvz5eh6gezzief1rzm
  • _kq0c9mx4s533ddk34xg0usbpo61j98w
  • y546rjmrctxgrbtdn5sl9b5gcymv2k0y
  • v=spf1 include:spf.protection.outlook.com -all

NS 2

  • keanu.ns.cloudflare.com
  • sreeni.ns.cloudflare.com

SOA 1

  • keanu.ns.cloudflare.com dns.cloudflare.com

DMARC_RECORDS 1

  • v=DMARC1; p=reject; fo=1; pct=100

TLS Certificates (3)

Common NameIssuerExpires
sis.gov.uk C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=GeoTrust TLS RSA CA G1 Sun, 13 Dec 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 CA Sun, 09 Nov 2031 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; the only network request the check makes is for the published public keys.

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Ed25519 Receipt

Receipt ID
rcpt_1e75378e1cbe960c
Output Hash
af85ce440a5f8d3d89b0912336c1bed8f6980d2751e256b43b9144ff2fed41b7
Signature
ed25519:fb4ae38ced9ed862294abc7c19f078ec2e8706b07b117cd06307bfcbcc86c11b2f76f3a71f4956f99dcec98aeb435303da52df6ba5166167e9b29cb667f9f504
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT31,069 material changesacross 27,732 domains · 24h to ~40m ago · +19,271 vs yesterdayROTATION61 domains moved DNS from magpiedns.com to koaladns.com, 60 moved backa rotation loop, not a migration · 24hNOW520 curated domains not reachablelast probe, steadySITE ERRORS36,547 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,586 sites429 rate-limit / 403 bot-block, a posture signal