block.io

Observed Aug 12, 2026, 03:31 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of block.io was taken 3d ago

block.io is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting block.io under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch block.io Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Guarded by a firewall
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
IPv6 · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat block.io actually stands on - every host below is a signed observation
block.io
A / AAAA
104.26.8.44104.26.9.44172.67.69.2262606:4700:20::681a:82c+2 more
Cloudflareserves the site
NS
justin.ns.cloudflare.comserena.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
block.io
Google Trust Servicesissued its certificate

DNS Records

A 3

  • 104.26.8.44
  • 104.26.9.44
  • 172.67.69.226

AAAA 3

  • 2606:4700:20::681a:82c
  • 2606:4700:20::681a:92c
  • 2606:4700:20::ac43:45e2

MX 5

  • 1aspmx.l.google.com
  • 5alt1.aspmx.l.google.com
  • 5alt2.aspmx.l.google.com
  • 10aspmx2.googlemail.com
  • 10aspmx3.googlemail.com

TXT 1

  • v=spf1 ip4:168.245.44.186 include:_spf.google.com -all

NS 2

  • justin.ns.cloudflare.com
  • serena.ns.cloudflare.com

SOA 1

  • justin.ns.cloudflare.com dns.cloudflare.com

CAA 11

  • iodef "mailto:support@block.io"
  • 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"

DMARC_RECORDS 1

  • v=DMARC1; p=none;

TLS Certificates (3)

Common NameIssuerExpires
block.io C=US, O=Google Trust Services, CN=WE1 Thu, 01 Oct 2026 09:49:47 +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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_fd2ec65703f4a96d
Output Hash
e9bf426a0138f3201f9a6e22516ea8b5ef325b3ba077e44edb890193da360177
Signature
ed25519:5a54dcb8cdb8d2235666a35bac4c53c66dac209dcbd1fee44ab77e2a8cf38ababf5d0cf49d6aa9a65e48e6940f76b24d7bc42e011cd82509fdc0fc47dd217504
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT45,283 material changesacross 43,517 domains · 24h to ~60m ago · +1,201 vs yesterdayROTATION55 domains moved DNS from magpiedns.com to koaladns.com, 55 moved backa rotation loop, not a migration · 24hNOW494 curated domains not reachablelast probe, steadySITE ERRORS36,548 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,575 sites429 rate-limit / 403 bot-block, a posture signal