langchain.dev

Observed Aug 12, 2026, 03:38 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of langchain.dev was taken 1d ago

langchain.dev is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting langchain.dev 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.

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Not responding
Email byGoogle Workspace
Also usesMicrosoft 365DocuSignRipplingAirtableOpenAIPylonRilletServal
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat langchain.dev actually stands on - every host below is a signed observation
langchain.dev
NS
ns-cloud-d1.googledomains.comns-cloud-d2.googledomains.comns-cloud-d3.googledomains.comns-cloud-d4.googledomains.com
googledomains.comanswers its DNS
MX
smtp.google.com
Google Workspacereceives its email

DNS Records

MX 1

  • 1smtp.google.com

TXT 18

  • MS=ms50742513
  • docusign=4f4d6f77-81d2-41d8-80ac-683fa0497944
  • rippling-domain-verification=63fc83ef88a631a7
  • airtable-verification=99d26aecd895b13e496517abcab67ce3
  • openai-domain-verification=dv-orYg62NuHB1Vn0UytI47V07Q
  • pylon-domain-verification-4609k3=XlulM6zvAHo562xF3V2QoWvcS
  • pylon-domain-verification-av8d96=vo2srXWIl2NaLT4rmeticvUgY
  • rillet-domain-verification-ptvsbr=GGBuLKDsry37knbl7jCSztJPo
  • serval-domain-verification-rw5p3x=Cd0QhPSWTkp5SCySGlSZ6ZGhJ
  • anthropic-domain-verification-3ztt88=QlupmkjoLSVO7tygdvnG3EmK1

NS 4

  • ns-cloud-d1.googledomains.com
  • ns-cloud-d2.googledomains.com
  • ns-cloud-d3.googledomains.com
  • ns-cloud-d4.googledomains.com

SOA 1

  • ns-cloud-d1.googledomains.com cloud-dns-hostmaster.google.com

DMARC_RECORDS 1

  • v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=r; rua=mailto:postmaster@langchain.dev,mailto:254220@dmarcmntr.com; ruf=mailto:254220@dmarcmntr.com; fo=1

TLS Certificates (0)

None.

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_162f78fed55a4e19
Output Hash
f2d7255047b2e6d49c911adac46e90ecd79b1e79d0e1006b5ad9a1cf427bd7fa
Signature
ed25519:bbd9f7fc8af828ad0ca9f500dab2af1c2e7baf4d7232544c9038dd2929c5c3029b4fad7ebca05fe1a84e13042994493008de401b5f1051829cf75439bac14508
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT42,741 material changesacross 40,769 domains · 24h to ~3h ago · -3,129 vs yesterdayROTATION60 domains moved DNS from koaladns.com to magpiedns.com, 58 moved backa rotation loop, not a migration · 24hCERT DRIFT1 domains switched issuing CA24hREGISTRAR DRIFT2 changed registrar24hNOW500 curated domains not reachablelast probe, steadySITE ERRORS36,474 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 115,897 sites429 rate-limit / 403 bot-block, a posture signal