CONTINUOUS INTERNET TELEMETRY24H DRIFT3,032 material changesacross 2,720 domains · -366 vs yesterdayDNS DRIFT24 domains changed DNS providertop destination cloudflare.com · -3 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination h-email.net · -3 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,312 curated domains not answering-6,406 vs yesterdayERRORS10,951 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT3,032 material changesacross 2,720 domains · -366 vs yesterdayDNS DRIFT24 domains changed DNS providertop destination cloudflare.com · -3 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination h-email.net · -3 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,312 curated domains not answering-6,406 vs yesterdayERRORS10,951 responded with an errorlast probe · 5xx / 404 / 429 / 403

ul.com

Observed 2026-07-13T01:09:43.359Z (12h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Email byMicrosoft 365
Registered withNetwork Solutions, LLC
Also usesMiroDockerAtlassianDocuSignFigmaGoogle Search Console
IPv6 · 12 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ul.com actually stands on - every host below is a signed observation
ul.com
A / AAAA
23.185.0.42620:12a:8001::42620:12a:8000::4
Cloudflareserves the site
NS
carlos.ns.cloudflare.comulla.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
ul-com.mail.protection.outlook.com
Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.ul.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time523 ms
DNS resolutionNOERROR
Redirect chain
https://www.ul.com/

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

DNS Records

A 1

  • 23.185.0.4

AAAA 2

  • 2620:12a:8001::4
  • 2620:12a:8000::4

MX 1

  • 0ul-com.mail.protection.outlook.com

TXT 30

  • v=spf1 mx ip4:12.32.81.100 ip4:12.32.81.172 ip4:38.142.64.130 include:spf.protection.outlook.com ~all
  • miro-verification=dbb26ddf6929b25347fbe031be4bf1ef357ee3c0
  • adobe-idp-site-verification=4df6e249fa302c36737e197df5a07b86f7a2912de319a82411daf46f427bb916
  • docker-verification=740e233c-fa7b-4754-9f83-7e63156a8a65
  • atlassian-domain-verification=Er/1vFeKCgT3HBTmn0XLa9W1Sit4XUBejOL2aVj3aZstquVEJ00dZDG5FfR4SQFa
  • apple-domain-verification=OFjBXbeCi8NhZgQJ
  • ufe8g4u2phcsj1s5ku6761n3cm
  • _94kdqa1jd3gl0h1e83oqz7e2cy4j2od
  • 00D300000000QxT=1TBPQ00000002cw
  • 00D30000001I4Ud=1TBQo00000003qk

NS 2

  • carlos.ns.cloudflare.com
  • ulla.ns.cloudflare.com

SOA 1

  • carlos.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (12)

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 ul.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
466d17b1-d411-47dc-a333-3292cbfff42f
Output Hash
85492811822f89abb5897b0add3ab1f676aca4bd5f8d203a77df4f90a764bc74
Signature
ed25519:df6a387d439e25f1e7dcd88a999d08f9fdb73d9ff30f4e99ba398e24142ef4e1f88ed9cff19b9e7c16eda73d300e1d8bfed682f6f0dcb5a172abb7dc76a3cf0a
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser