CONTINUOUS INTERNET TELEMETRY24H DRIFT2,063 material changesacross 1,856 domains · -488 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination cloudflare.comEMAIL DRIFT5 domains switched email providertop destination google.comCERT DRIFT1 domains switched issuing CA24h · -4 vs yesterdayNOW3,391 curated domains not answeringlast probe, steadyERRORS10,887 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT2,063 material changesacross 1,856 domains · -488 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination cloudflare.comEMAIL DRIFT5 domains switched email providertop destination google.comCERT DRIFT1 domains switched issuing CA24h · -4 vs yesterdayNOW3,391 curated domains not answeringlast probe, steadyERRORS10,887 responded with an errorlast probe · 5xx / 404 / 429 / 403

understood.org

Observed 2026-07-13T10:04:07.131Z (19h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Email byGoogle Workspace
Also usesGoogle Search ConsoleMiroFacebook/MetaAtlassian
IPv6 · 44 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat understood.org actually stands on - every host below is a signed observation
understood.org
A / AAAA
104.18.14.133104.18.15.1332606:4700::6812:e852606:4700::6812:f85
Cloudflareserves the site
NS
jill.ns.cloudflare.comfred.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
smtp.google.com
Google Workspacereceives its email

HTTPS probe

redirect Redirecting (3xx) 308 → https://www.understood.org/
HTTP status308
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time58 ms
DNS resolutionNOERROR
Redirect chain
https://www.understood.org/

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

DNS Records

A 2

  • 104.18.14.133
  • 104.18.15.133

AAAA 2

  • 2606:4700::6812:e85
  • 2606:4700::6812:f85

MX 1

  • 0smtp.google.com

TXT 22

  • fcp51l2t5mpdzf6d6x1ptmzlnnnn807f
  • bs0tw4pbx73ck9b5hrw9w4cfvsy2fsl1
  • contractworksverify = 2XFwQ3o62jdjdyQyJFfzwt
  • _jr2013rd8nglahx0ag3qlqt569265d4
  • tmes=0bb5c6ba1c638cde600907776df1f1f9
  • 84dw58n4ws11qbtlc6pwbkwvj0gs70m8
  • securitystudio-site-verification=G8gyGWRTEswJT49hGOwMvg==
  • twilio-domain-verification=8260bdea6b9954209f72e17245c2f656
  • MS=ms36583737
  • v=spf1 include:emsd1.com include:us._netblocks.mimecast.com include:mail.zendesk.com include:mg-spf.greenhouse.io include:spf.mandrillapp.com include:servers.mcsv.net include:_spf.google.com include:spf.protection.outlook.com ~all

NS 2

  • jill.ns.cloudflare.com
  • fred.ns.cloudflare.com

SOA 1

  • fred.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (44)

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 understood.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
e4378fa1-36ca-4fba-9278-17f42a710dc8
Output Hash
293a5d1c655655d919015f05d9a56131b9c6eb444259a001cb83cb7b912fa40b
Signature
ed25519:201df10114710069dc4e387f26ce2179f7523cabf6bed2f0e1bd6cb4c6ca7b023b23854c64e95e06997122bb765fb1a0fcd79a6635b1e6c776b1cafa801e1505
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser