CONTINUOUS INTERNET TELEMETRY24H DRIFT8,870 material changesacross 8,548 domainsDNS DRIFT627 domains changed DNS providertop destination parity.domainsEMAIL DRIFT128 domains switched email providertop destination google.comCERT DRIFT201 domains switched issuing CA24hNOW1,595 curated domains not reachable-1,115 vs yesterdaySITE ERRORS20,428 sites serving errorslast probe · 5xx / 404 / TLSTHROTTLED93,667 throttled or blocked our scanner429 rate-limit / 403 bot-block

taxfoundation.org

Observed Jul 22, 2026, 00:15 UTC (18h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Up right now
Runs onFastly
Email byMicrosoft 365
Secured byLet's Encrypt
Registered withAmazon Registrar, Inc.
Also usesAtlassianGoogle Search ConsoleHubSpot
IPv6 · 1 subdomain · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat taxfoundation.org actually stands on - every host below is a signed observation
taxfoundation.org
A / AAAA
23.185.0.32620:12a:8001::32620:12a:8000::3
Fastlyserves the site
NS
ns-1011.awsdns-62.netns-1235.awsdns-26.orgns-139.awsdns-17.comns-1800.awsdns-33.co.uk
awsdns-62.net + awsdns-26.org + moreanswers its DNS
MX
taxfoundation-org.mail.protection.outlook.com
Microsoft 365receives its email
TLS
taxfoundation.org
Let's Encryptissued its certificate

DNS Records

A 1

  • 23.185.0.3

AAAA 2

  • 2620:12a:8001::3
  • 2620:12a:8000::3

MX 1

  • 0taxfoundation-org.mail.protection.outlook.com

TXT 10

  • 00dj0000001rzlyea2
  • 267C363244
  • MS=ms36814630
  • apple-domain-verification=mPbx7o8ujRHkicTi
  • atlassian-domain-verification=ykDElOfDhkD0ZZ+GGs7eC8ZoaZitugLS9Qzo8MI6hG6UJ/v5KRGNnxGP1GErXxzW
  • canva-site-verification=8AznUPvo56Es8O6TY8JF2w
  • google-site-verification=bN-7qDjNP_IqgiV4HXKgX5rNze_vXtger_0tG4y-k3c
  • include:spf-us.emailsignatures365.com
  • v=spf1 a mx ptr include:spf.protection.outlook.com include:spf.dynect.net include:servers.mcsv.net include:20785128.spf02.hubspotemail.net include:_spf.salesforce.com -all
  • v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@taxfoundation.org; ruf=mailto:dmarc-failure@taxfoundation.org;

NS 4

  • ns-1011.awsdns-62.net
  • ns-1235.awsdns-26.org
  • ns-139.awsdns-17.com
  • ns-1800.awsdns-33.co.uk

SOA 1

  • ns-1235.awsdns-26.org awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common NameIssuerExpires
taxfoundation.org C=US, O=Let's Encrypt, CN=YR1 Thu, 15 Oct 2026 04:38:17 +0000
YR1 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 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; nothing leaves your machine.

Verify this receipt

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

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

Ed25519 Receipt

Receipt ID
rcpt_5b9fd3d5f4511669
Output Hash
590417b33fd6422c9706f7851dd4e8c4a683ad5fd273c4ec436900973eb78056
Signature
ed25519:4b0ccca5c7b69086d4f126119ad6b7b9b1d6285c967348963583ab6b7bc3d3f945b27c8c4cecececcb248a0afc981e3d3a7020546a90b0f4e97a826b62ef2b00
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser