langchain.com

Observed 2026-07-14T01:07:45.156Z (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Registered withGoDaddy.com, LLC

Also usesGoogle Search ConsoleHubSpot

7 subdomains · ai_ml

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat langchain.com actually stands on - every host below is a signed observation

langchain.com

A / AAAA

198.202.211.1

Cloudflareserves the site

ns-cloud-c1.googledomains.comns-cloud-c4.googledomains.comns-cloud-c2.googledomains.comns-cloud-c3.googledomains.com

googledomains.comanswers its DNS

smtp.google.com

Google Workspacereceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.langchain.com/

HTTP status301

Servercloudflare

TLS protocolHTTP/3

TLS issuernot observed

Behind Cloudflareyes

Response time609 ms

DNS resolutionNOERROR

Redirect chain

https://www.langchain.com/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

198.202.211.1

MX 1

1smtp.google.com

TXT 11

xbuvf8ogot
linkedin-site-verification=f15545d4-d50f-424a-9076-ceebd5e91424
MS=ms60202630
google-site-verification=MZV-DrUglhroyDj0lCk7AP5YOKy4GGEgUaIyLjCXEb8
google-site-verification=d192uA19ZkwkREu9NZKM9hxDB1t90uIMHp5gFbBBuzw
v=spf1 include:_spf.google.com include:242623570.spf06.hubspotemail.net include:servers.mcsv.net ~all
google-site-verification=wP16h2Joxep73RW-Hb8fneAizDK4FCn_6a4DnsbOdrM
google-site-verification=nezqC2hbpeFSFJDIKE_6_ADSKsl4j9dTvwk782NSL9E
google-site-verification=wUPxN5SwJJSQGceU6cVjpkHI-08DZaqJSlAgg_55nj4
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

NS 4

ns-cloud-c1.googledomains.com
ns-cloud-c4.googledomains.com
ns-cloud-c2.googledomains.com
ns-cloud-c3.googledomains.com

SOA 1

ns-cloud-c1.googledomains.com cloud-dns-hostmaster.google.com

CAA 9

issue digicert.com; cansignhttpexchanges=yes
issue letsencrypt.org
issue sectigo.com
issuewild pki.goog; cansignhttpexchanges=yes
issuewild letsencrypt.org
issue amazon.com
issuewild digicert.com; cansignhttpexchanges=yes
issuewild sectigo.com
issue pki.goog; cansignhttpexchanges=yes

TLS Certificates (0)

None.

Subdomains (7)

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 langchain.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 9df99c84-2d8b-4135-bebe-6fa92abcce52
Output Hash: d824b06d4dbb55390052de834bbd95eec7a223b4e5e8ce5a6deae6239464efc7
Signature: ed25519:bd395915868ba0a1bf2402c3024c558d1319ac537b891f88bd32e028a3ee8a66397fdf6bbdc6198133e7b8f50b59253496e1e47915cea424f0952017629b8e01
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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