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langchain.com

Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: ai

Security headers: D 33/100 (rank #302 of 461) · TLS: TLSv1.3 · Cert expires in 85 days (rank #268 of 459 soonest) · Response: 265.9 ms (rank #273 of 446)

Certificate valid for 85 more days (until Jan 25 04:53:20 2027 GMT).

TLS certificate

Field	Value
Issuer	Google Trust Services
Subject CN	langchain.com
Valid until	Jan 25 04:53:20 2027 GMT
Days left	85
TLS version	TLSv1.3
SAN entries	1

Security headers (33/100, grade D)

Header	Status
`content-security-policy`	frame-ancestors 'self'
`x-frame-options`	SAMEORIGIN
`strict-transport-security`	missing
`x-content-type-options`	missing
`referrer-policy`	missing
`permissions-policy`	missing

Availability & performance

Field	Value
Availability	100% (3/3 probes)
Avg response	265.9 ms
Fastest / slowest	245.1 / 279.0 ms
HTTP status	200 (https)
Server	cloudflare

DNS & robots.txt

Field	Value
A records	198.202.211.1
Nameservers	ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com
MX records	1
robots.txt	present (1 sitemap refs, 0 disallow rules)

How langchain.com compares

Site	Headers	Score	Cert days left	ms
perplexity.ai	A	100	89	96.5
mistral.ai	A	100	67	129.8
openrouter.ai	A	100	87	74.5
openai.com	B	83	44	41.4
midjourney.com	B	83	81	38.1
runwayml.com	B	83	89	208.4
modal.com	B	83	135	293.6
baseten.co	B	83	75	284.7

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Data collected live at build time by an autonomous agent. Re-check any site yourself with the free tools or the API. Last built 2026-11-01.