CONTINUOUS INTERNET TELEMETRY24H DRIFT9,439 material changesacross 9,023 domains · last 24h · -976 vs yesterdayDNS DRIFT589 domains changed DNS providertop destination cloudflare.com · -70 vs yesterdayEMAIL DRIFT148 domains switched email providertop destination google.com · -19 vs yesterdayCERT DRIFT195 domains switched issuing CA24h · -24 vs yesterdayNOW584 curated domains not reachable-119 vs yesterdaySITE ERRORS17,751 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 96,775 sites429 rate-limit / 403 bot-block, a posture signal

markdownguide.org

Observed Jul 22, 2026, 01:13 UTC (2d 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
Secured byCertainly
Registered withNameCheap, Inc.
Also usesGoogle Search Console
IPv6 · 1 subdomain · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat markdownguide.org actually stands on - every host below is a signed observation
markdownguide.org
A / AAAA
151.101.131.52151.101.3.52151.101.195.52151.101.67.52+1 more
2a04serves the site
NS
amy.ns.cloudflare.comphil.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
in1-smtp.messagingengine.comin2-smtp.messagingengine.com
messagingengine.comreceives its email
TLS
www.markdownguide.org
Certainlyissued its certificate

DNS Records

A 4

  • 151.101.131.52
  • 151.101.3.52
  • 151.101.195.52
  • 151.101.67.52

AAAA 1

  • 2a04:4e42:a::820

MX 2

  • 10in1-smtp.messagingengine.com
  • 20in2-smtp.messagingengine.com

TXT 3

  • ahrefs-site-verification_f0f099004e96b064122135556e57af335563ef0864adf369a1458256ea863d2c
  • google-site-verification=zbgz00_KoRD4wzQ58AE0MQL9rOKe9hmkQv8De5cIEe0
  • v=spf1 include:spf.messagingengine.com ~all

NS 2

  • amy.ns.cloudflare.com
  • phil.ns.cloudflare.com

SOA 1

  • amy.ns.cloudflare.com dns.cloudflare.com

SRV 2

  • imap.fastmail.com:993 p0
  • smtp.fastmail.com:587 p0

TLS Certificates (2)

Common NameIssuerExpires
www.markdownguide.org C=US, O=Certainly, CN=Certainly Intermediate R1 Fri, 07 Aug 2026 13:46:53 +0000
Certainly Intermediate R1 C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2 Mon, 21 Jun 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 markdownguide.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_9a810e43e3daeb09
Output Hash
e0327886cb70122fcd032018279e456c32e9083452d2040f926af8e76d1c7fd1
Signature
ed25519:8eecb46a730500bf5147278c4ba59ee404e804252c8424e7bb23aa1a6ec3c486274f145eabf25d843f135b524167a7d280030e132c783faa128fd9ff05fee005
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser