CONTINUOUS INTERNET TELEMETRY24H DRIFT7,042 material changesacross 5,536 domains · last 24hNOW530 curated domains not reachable+28 vs yesterdaySITE ERRORS35,023 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 153,365 sites429 rate-limit / 403 bot-block, a posture signal

zen-browser.app

Observed Jul 28, 2026, 17:31 UTC (17h 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.

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Up right now
Runs onCloudflare
Secured byGoogle Trust Services
Also usesGoogle Search Console
IPv6 · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zen-browser.app actually stands on - every host below is a signed observation
zen-browser.app
A / AAAA
104.26.5.92172.67.73.96104.26.4.922606:4700:20::681a:45c+2 more
Cloudflareserves the site
NS
aaden.ns.cloudflare.comnia.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mail.tutanota.de
tutanota.dereceives its email
TLS
zen-browser.app
Google Trust Servicesissued its certificate

DNS Records

A 3

  • 104.26.5.92
  • 172.67.73.96
  • 104.26.4.92

AAAA 3

  • 2606:4700:20::681a:45c
  • 2606:4700:20::681a:55c
  • 2606:4700:20::ac43:4960

MX 1

  • 0mail.tutanota.de

TXT 7

  • Ticket ID - 290639
  • google-site-verification=HldAn6UqCyfGT0c_pGO-oWGcRgu6zvvRGs1FUA3xiZA
  • t-verify=ec3c2f26709549ccc384921789146c27
  • v=spf1 include:spf.tutanota.de -all
  • v=DMARC1; p=none; rua=mailto:e50c6edb8a8349f09a40ade67a224235@dmarc-reports.cloudflare.net
  • v=DMARC1; p=quarantine; adkim=s
  • v=STSv1; id=20190723;

NS 2

  • aaden.ns.cloudflare.com
  • nia.ns.cloudflare.com

SOA 1

  • aaden.ns.cloudflare.com dns.cloudflare.com

CAA 10

  • issue "comodoca.com"
  • issue "digicert.com; cansignhttpexchanges=yes"
  • issue "letsencrypt.org"
  • issue "pki.goog; cansignhttpexchanges=yes"
  • issue "ssl.com"
  • issuewild "comodoca.com"
  • issuewild "digicert.com; cansignhttpexchanges=yes"
  • issuewild "letsencrypt.org"
  • issuewild "pki.goog; cansignhttpexchanges=yes"
  • issuewild "ssl.com"

TLS Certificates (3)

Common NameIssuerExpires
zen-browser.app C=US, O=Google Trust Services, CN=WE1 Mon, 07 Sep 2026 10:18:14 +0000
WE1 C=US, O=Google Trust Services LLC, CN=GTS Root R4 Tue, 20 Feb 2029 14:00:00 +0000
GTS Root R4 C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA Fri, 28 Jan 2028 00:00:42 +0000

Subdomains (0)

None observed.

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 zen-browser.app. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_ae5c2a97852d1ed0
Output Hash
1467196f876db3a547889d6f026bcdc84c8c623da8bbc7601ea05fd620b98580
Signature
ed25519:bd1e82d26558deefce5b36c80a4a6b909e316a0a2e40e89b334be227ddbb1a8ff15008063bf5519a0eade736c5407c309de1918ddfe6bf952dbfc75a960b9c00
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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