CONTINUOUS INTERNET TELEMETRY24H DRIFT2,259 material changesacross 2,058 domains · -292 vs yesterdayDNS DRIFT14 domains changed DNS providertop destination selectel.ru · -2 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination google.comCERT DRIFT1 domains switched issuing CA24h · -4 vs yesterdayNOW3,390 curated domains not answeringlast probe, steadyERRORS10,886 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT2,259 material changesacross 2,058 domains · -292 vs yesterdayDNS DRIFT14 domains changed DNS providertop destination selectel.ru · -2 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination google.comCERT DRIFT1 domains switched issuing CA24h · -4 vs yesterdayNOW3,390 curated domains not answeringlast probe, steadyERRORS10,886 responded with an errorlast probe · 5xx / 404 / 429 / 403

headlessui.com

Observed 2026-07-14T01:55:40.537Z (7h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withTucows Domains Inc.
IPv6 · 1 subdomain · misc
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat headlessui.com actually stands on - every host below is a signed observation
headlessui.com
A / AAAA
172.67.188.196104.21.49.122606:4700:3033::ac43:bcc42606:4700:3032::6815:310c
Cloudflareserves the site
NS
roxy.ns.cloudflare.comanuj.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt2.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK
HTTP status200
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time180 ms
DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

  • 172.67.188.196
  • 104.21.49.12

AAAA 2

  • 2606:4700:3033::ac43:bcc4
  • 2606:4700:3032::6815:310c

MX 5

  • 1aspmx.l.google.com
  • 5alt2.aspmx.l.google.com
  • 10alt4.aspmx.l.google.com
  • 5alt1.aspmx.l.google.com
  • 10alt3.aspmx.l.google.com

TXT 2

  • v=spf1 include:_spf.google.com ~all
  • v=DKIM1; (detected)

NS 2

  • roxy.ns.cloudflare.com
  • anuj.ns.cloudflare.com

SOA 1

  • anuj.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

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

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for headlessui.com. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for headlessui.com <a href="https://domaindrift.io/t/headlessui.com"> <img src="https://domaindrift.io/badge/headlessui.com.svg" width="300" height="64" alt="DomainDrift signed observations for headlessui.com"> </a>

Ed25519 Receipt

Receipt ID
c2ad4273-ffc5-4741-a241-c15903d40934
Output Hash
f80caeeb29e673e5d4cf38676ee004a3db8a4f675eccce0e327046d96591fa38
Signature
ed25519:495d0be410b946b9391592eb0468ddec5496b5bfaf60b3c430d75803ebed4e51988376d589d5353f780ecc10cdd3fcf9585209df56c6a13a83f9293af9ed9701
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser