langchain.com
LangChain: Observe, Evaluate, and Deploy Reliable AI Agents
Last scanned Jul 25, 2026, 10:25 AM · 2 views
Overall score
Great
Summary
LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents. This website uses Plausible Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance good (75/100). Top issue: No structured data (JSON-LD) found.
LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.
- United States
- Hosted on Cloudflare
Products & pricing
Product and pricing information published in this site's own structured data.
Plans for teams of any size
$0 USD
Top issues to fix
3 issues found · 1 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
SEO
1 issue(s) found
Performance
467 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- LangChain: Observe, Evaluate, and Deploy Reliable AI Agents
- Description
- LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.
- Canonical
- https://www.langchain.com
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 198.202.211.1
- ASN
- AS209242 (CLOUDFLARESPECTRUM - Cloudflare London, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS |
|
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.langchain.com
- Valid from
- Jul 3, 2026
- Valid to
- Oct 1, 2026
- Days until expiry
- 67
- SAN domains
- www.langchain.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 2
Links
26 internal · 20 external · 0 broken
Images
88 total · 0 missing alt
Scripts / Styles
36 scripts · 1 stylesheets
JS / CSS size
2.2 MB · 783 KB
Page size
152 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 561
SEO issues
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Careers
Scan details
- Requested URL
- https://langchain.com
- Final URL
- https://www.langchain.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 464 ms
- HTML size
- 152 KB
- Redirect chain
- https://langchain.com → https://www.langchain.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does langchain.com use?
- langchain.com is built with jQuery, Plausible Analytics.
- Is langchain.com secure (HTTPS)?
- Yes. langchain.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 1, 2026.
- Who hosts langchain.com?
- langchain.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is langchain.com's SEO score?
- langchain.com scored 90/100 for SEO in the latest analysis (excellent).
- What is langchain.com's overall website score?
- langchain.com has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
- What products does langchain.com offer?
- langchain.com offers Plans for teams of any size.
- Is langchain.com hiring?
- Yes. langchain.com has 50 open roles listed on their careers page.
OpenGraph & Twitter Card
OpenGraph
Twitter Card