CONTINUOUS INTERNET TELEMETRY24H DRIFT34,824 material changesacross 32,961 domains · 24h to ~3h agoROTATION55 domains moved DNS from koaladns.com to kirklanddc.com, 50 moved backa rotation loop, not a migration · 24hNOW594 curated domains not reachablelast probe, steadySITE ERRORS33,540 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 118,506 sites429 rate-limit / 403 bot-block, a posture signal

learncodethehardway.org

Observed Aug 3, 2026, 08:27 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of learncodethehardway.org was taken 5d ago

learncodethehardway.org is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting learncodethehardway.org 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 learncodethehardway.org Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Secured byLet's Encrypt
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat learncodethehardway.org actually stands on - every host below is a signed observation
learncodethehardway.org
A / AAAA
138.201.193.136
unattributedserves the site
NS
ns-113-c.gandi.netns-98-a.gandi.netns-252-b.gandi.net
gandi.netanswers its DNS
MX
mail.learncodethehardway.org
learncodethehardway.orgreceives its email
TLS
learncodethehardway.org
Let's Encryptissued its certificate

DNS Records

A 1

  • 138.201.193.136

MX 1

  • 0mail.learncodethehardway.org

TXT 2

  • v=spf1 mx:mail.learncodethehardway.org ip4:138.201.193.136 ip4:95.216.45.211 include:shop.learncodethehardway.org a:learncodethehardway.org ~all
  • google-site-verification=1wTsc2OXvJUhTAjlfxUbYkZG49I4wmX8_RD3k1_UAe4

NS 3

  • ns-113-c.gandi.net
  • ns-98-a.gandi.net
  • ns-252-b.gandi.net

SOA 1

  • ns1.gandi.net hostmaster.gandi.net

DMARC_RECORDS 1

  • v=DMARC1; p=none; rua=mailto:postmaster@learncodethehardway.org

TLS Certificates (4)

Common NameIssuerExpires
learncodethehardway.org C=US, O=Let's Encrypt, CN=YE2 Fri, 18 Sep 2026 16:39:18 +0000
YE2 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 (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_898300d7621e1c7b
Output Hash
4d5c67e66613991a3d9ce7826f060e6672694e44e0e5e674bae5861c2b8761b0
Signature
ed25519:c67cf6f78d76f46c0ce1cce01abe91359bc49f26b095d76048f07e6ced6e4609f6b8b441ee3ef9603cbd372d52c3c5bdb8698b7b0d07377b150a2259a8f7e404
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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