CONTINUOUS INTERNET TELEMETRY24H DRIFT1,851 material changesacross 1,673 domains · -227 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination alidns.com · +1 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.comCERT DRIFT46 domains switched issuing CA24hNOW1,528 curated domains not answering+402 vs yesterdayERRORS11,012 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED29,914 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT1,851 material changesacross 1,673 domains · -227 vs yesterdayDNS DRIFT16 domains changed DNS providertop destination alidns.com · +1 vs yesterdayEMAIL DRIFT8 domains switched email providertop destination google.comCERT DRIFT46 domains switched issuing CA24hNOW1,528 curated domains not answering+402 vs yesterdayERRORS11,012 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED29,914 throttled or blocked our scanner429 rate-limit / 403 bot-block

head-fi.org

Observed Jul 18, 2026, 13:43 UTC (14h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onGoogle
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search ConsoleFacebook/Meta
1 subdomain · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat head-fi.org actually stands on - every host below is a signed observation
head-fi.org
A / AAAA
35.190.46.56
Googleserves the site
NS
ns1.bmatter.comns0.bmatter.com
bmatter.comanswers its DNS
MX
alt3.aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
www.head-fi.org
Let's Encryptissued its certificate

DNS Records

A 1

  • 35.190.46.56

MX 5

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

TXT 6

  • v=spf1 include:_spf.google.com include:amazonses.com ~all
  • google-site-verification=4x6TtPKKlr9ClyEFIwNA7u-BxUCPtk1BJWaWi6rUEA8
  • facebook-domain-verification=d8mjz8olzflhfqv50nkskt2ju6w9kd
  • have-i-been-pwned-verification=dweb_atu072709gj7y7szkc0s2lgo
  • google-site-verification=f3EeT2CuoOW41Ago4LfY5gaxugI9fx49jpIj9bfIfOM
  • v=DMARC1; p=quarantine; sp=none; rua=mailto:joe+dmarc@head-fi.org; aspf=r; adkim=r

NS 2

  • ns1.bmatter.com
  • ns0.bmatter.com

SOA 1

  • ns10.dnsmadeeasy.com dns.dnsmadeeasy.com

CAA 5

  • issue "pki.goog"
  • issuewild "pki.goog"
  • issuewild "letsencrypt.org"
  • issue "letsencrypt.org"
  • iodef "mailto:feedback@head-fi.org"

TLS Certificates (4)

Common NameIssuerExpires
www.head-fi.org C=US, O=Let's Encrypt, CN=YE1 Wed, 30 Sep 2026 00:35:53 +0000
YE1 C=US, O=ISRG, CN=Root YE Sat, 02 Sep 2028 23:59:59 +0000
Root YE C=US, O=Internet Security Research Group, CN=ISRG Root X2 Thu, 02 Sep 2032 23:59:59 +0000
ISRG Root X2 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 head-fi.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
8d928fa3-d28e-4efd-90ee-bd2b5a9f0ef6
Output Hash
4918bc27f0f2e5a19d49eb2c3a132efff8df4bb701e41c26b874a0419ba130d2
Signature
ed25519:fa11b9c85bfde5b58acde822e7938c1c20d0ae5b6f031acc79070cf274ea063ed63a238cfaa67fce12390d9c9eabf35e8ddb6b56752c0ea737b6fcad06f9b708
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser