CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 8,280 material changesacross 7,874+ domains · 24h to ~22h ago · a floor, 2h of 24 walkedNOW562 curated domains not reachablelast probe, steadySITE ERRORS34,497 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 155,779 sites429 rate-limit / 403 bot-block, a posture signal

responsive.dev

Observed Jul 27, 2026, 19:12 UTC (4d 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.

Verify this receipt yourself + Watch this domain
Up right now
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search Console
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat responsive.dev actually stands on - every host below is a signed observation
responsive.dev
A / AAAA
76.76.21.21
unattributedserves the site
NS
darwin.ns.cloudflare.comnaomi.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
responsive.dev
Let's Encryptissued its certificate

DNS Records

A 1

  • 76.76.21.21

MX 5

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

TXT 5

  • google-site-verification=QJ-syQZY4y7VdypCyJd_Z4W3AGG3NRZolUeyL9zOl9M
  • google-site-verification=WyJmCJXqWUmSP5W3Ynt4DJrjIB8Q5K28FfftWcJ4Kf4
  • mongodb-site-verification=dyiCPL5zgl2MBdViPzIzlPLQNYhumtXC
  • v=spf1 include:_spf.google.com ~all
  • v=DMARC1;p=none;sp=none;pct=100;rua=mailto:apurva@responsive.dev;ruf=mailto:apurva@responsive.dev;ri=86400;aspf=s;adkim=s;fo=1

NS 2

  • darwin.ns.cloudflare.com
  • naomi.ns.cloudflare.com

SOA 1

  • darwin.ns.cloudflare.com dns.cloudflare.com

CAA 12

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

TLS Certificates (3)

Common NameIssuerExpires
responsive.dev C=US, O=Let's Encrypt, CN=YR2 Wed, 23 Sep 2026 15:11:31 +0000
YR2 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 (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 responsive.dev. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_f8e43d1b81ed9e78
Output Hash
ca698c18601d80a675b7a9152b32304ee37b67582acb9d9738ef9ab872d4eeb8
Signature
ed25519:eb76df460d8df980317401d37cf23f514feb57bac023ba597a06a0eaa2e481a90ec86394ff8daed9de3f9b20c497be5885d6d15d88f082d4a5d9d183d986010a
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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