posthog.com
PostHog – We make your product self-driving
Last scanned Jul 29, 2026, 2:00 PM · 14 views
Overall score
Fair
Summary
PostHog automatically diagnoses problems, fixes bugs, and generates pull requests – all without you having to prompt it. This website uses Gatsby behind Vercel CDN. SEO is good (75/100) and accessibility is good (75/100). Security scores good (75/100) and performance fair (70/100). Top issue: Multiple H1 headings found.
PostHog automatically diagnoses problems, fixes bugs, and generates pull requests – all without you having to prompt it.
Top issues to fix
10 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+4 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
57 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
+5 overall since Jul 18, 2026
- Overall
- 74
- SEO
- 75
- Security
- 75
- Performance
- 70
- Accessibility
- 75
Organization
Company details published in this site's own structured data.
PostHog automatically diagnoses problems, fixes bugs, and generates pull requests – all without you having to prompt it.
Meta tags
- Title
- PostHog – We make your product self-driving
- Description
- PostHog automatically diagnoses problems, fixes bugs, and generates pull requests – all without you having to prompt it.
- Canonical
- https://posthog.com/
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- Manifest
- https://posthog.com/manifest.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Vercel
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- posthog.com
- Valid from
- Jul 14, 2026
- Valid to
- Oct 12, 2026
- Days until expiry
- 74
- SAN domains
- posthog.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 6 · H3 1
Links
48 internal · 1 external · 20 broken
Images
18 total · 6 missing alt
Scripts / Styles
13 scripts · 0 stylesheets
JS / CSS size
26.2 KB · 594 KB
Page size
1.4 MB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Multiple H1 headings found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
- Missing <html lang> attribute
Scan details
- Requested URL
- https://posthog.com
- Final URL
- https://posthog.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 29 ms
- HTML size
- 1.4 MB
- Redirect chain
- https://posthog.com
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Frequently asked questions
- What technology does posthog.com use?
- posthog.com is built with Gatsby.
- Is posthog.com secure (HTTPS)?
- Yes. posthog.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 12, 2026.
- Who hosts posthog.com?
- Hosting provider information for posthog.com is not available yet.
- What is posthog.com's SEO score?
- posthog.com scored 75/100 for SEO in the latest analysis (fair).
- What is posthog.com's overall website score?
- posthog.com has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.
- Has posthog.com's score changed over time?
- posthog.com's overall score has improved by 5 points (from 69 to 74) since Jul 18, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card