🌐 posthog.com 200 🔒 SSL Valid
Checked: just now 🔗 Visit site
🔗
Also reached via: posthog.app, posthog.co, posthog.me, posthog.org
✨ About this site
This site belongs to a well-established product analytics and software development platform built for engineers and product teams. It provides widely used tools for feature flags, session replay, and error tracking to help companies understand user behavior.
📊 What the data says
This website is hosted on Vercel and built with React, Gatsby, and Tailwind CSS. Registered six years ago, it maintains an active SSL certificate until December 2026 and utilizes HSTS security headers. Currently, it exhibits a mobile performance score of 25 and a desktop score of 44.
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 43d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 85d
Hosting ?The company and location where this website's server is physically located.Read more →
Unknown
Security ?Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
1/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
216.150.1.1
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
25 mob
Uptime
100%
⚡ Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 25
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Mobile
25
Score
80
Accessibility
88
Best Practices
92
SEO
LCP 37.51s
CLS 0.101
FCP 6.45s
TTFB 0.05s
TBT 1,910ms
SI 13.13s
Desktop
44
Score
76
Accessibility
92
Best Practices
92
SEO
LCP 3.01s
CLS 0.008
FCP 1.20s
TTFB 0.06s
TBT 1,627ms
SI 2.82s
Checked: 2026-10-29 04:31:11.478398 · View on PageSpeed
🛠️ Tech Stack ?Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 4
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🎨 CSS Framework
Tailwind CSS
☁️ Hosting
Vercel
⚡ JS Framework
React
📄 Static Site Generator
Gatsby
📸 Screenshot Processing...
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⏳

Screenshot is being captured...

🌐 DNS Records ?DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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A (IPv4)216.150.1.1
NSjulissa.ns.cloudflare.comrory.ns.cloudflare.com
MX5 alt2.aspmx.l.google.com1 aspmx.l.google.com10 alt3.aspmx.l.google.com10 alt4.aspmx.l.google.com5 alt1.aspmx.l.google.com
TXT (25)
Services configured via TXT:
Google8 Apple Microsoft 365 OpenAI Sinch Slack Stripe Tiktok Developers Wiz
+8 other TXT record(s)
Show all TXT records
tiktok-developers-site-verification=lhlLSOG6nN8VhySQd9N00K8kezUO085W
v=spf1 include:_spf.google.com include:mail.zendesk.com include:servers.mcsv.net include:spf.mandrillapp.com include:amazonses.com include:mailgun.org -all
anthropic-domain-verification-fk0e2j=R5tx8jvOBLON93kYQoe7azTT5
google-site-verification=y_lIMB59lFcZyw-aDkPwQH04ErnkAuswbPDI48kj7NU
google-site-verification=HlrzEAPHS7VRZcGfvU39mhF86LLDPz-Nm88y6vEHSUk
openai-domain-verification=dv-neQHJF2tLgKhhJ9cppTLIyQX
hubspot-developer-verification=MjAwNTY0MDEtNjg3Zi00ZDYyLWEwMmEtOWRlY2M4NGMwMWEx
google-site-verification=2aAHS6wwKXEihn7xmDkURVERdCE1Ud1oDL257IR1JEY
stripe-verification=0758FA8B9CFF58AD6C7CA769A4CBCD1F538FD3CAE856ED865B600E0C85F8AF9C
warpstream-verification=W8ZSnRMODyyK7db-HsqH0g==
zapier-domain-verification-challenge=2d19d8f3-abea-4e65-9d76-afc2cfabbea2
hubspot-developer-verification=ZjBiZGU4ZWEtMmQzNS00YTIzLTg1NzktOWFhYmZhZWYyNGRj
apple-domain-verification=LVLu2hGeleHVVEIh
google-site-verification=rV-p0xIuoSPKEOsbXiFRdpuRNAIvkmvqUCMKQdQNiQQ
hubspot-developer-verification=NmM3ZGZjOGItMTFkNC00Y2JlLTk2OGMtNWI5NGRlNWE2MTk1
xmpYvq0qq2jlJ41DdaHeshLvvw
google-site-verification=OzoiNToqd-3naAZ8v66RAlu4GFLD83oLYTAFuVkhDJw
wiz-domain-verification=3357378f04c747f632241dede60682807fdd2f1cbf17eaad4433626cadba1d34
slack-domain-verification=pJ3bCWRyJrqVBSqaEFOoL5beWxNfWUAdsHqCv7bq
google-site-verification=JnVdTQN5QXDDrPw09cSFIRwc_hkmVQgwgpyuEUe3qgg
google-site-verification=8iSexCUhAjrq9sdND8snbBMQkxgT1uPyuLn8qMKCC3g
MS=ms19564166
cloudflare_dashboard_sso=bf5bb621cae6f03b04deaeb95a4fbb47
google-site-verification=XcqIYCKBCZjObwHn5VVmsi92SLnaVx1XYruncLCUldM
sinch-domain-verification=3b91dbc6-6227-41f1-8251-f208d684cb4b
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarAmazon Registrar, Inc.
Registered2020-01-23
Expires2027-01-23 (in 85 days)
Last Updated2026-05-15
Statusclient transfer prohibited
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)posthog.com
IssuerLet's Encrypt
Valid From2026-09-13
Valid Until2026-12-12 (43 days left)
SANs (1)posthog.com
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
ServerVercel
Content-Typetext/html; charset=utf-8
Final URLhttps://posthog.com/
strict-transport-securitymax-age=63072000
cache-controlpublic, max-age=0, must-revalidate
Security headers ?HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
HSTS
Content-Security-Policy
X-Frame-Options
🏠 Hosting ?Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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IP Address216.150.1.1
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score F (2/7)
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Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
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Open to search engines
This site's robots.txt lets crawlers access its main content. Search engines can index it normally.
Areas hidden from crawlers:
📁 Other paths 1
Show raw disallow rules (1)
/*.md$
Sitemap Found 1 sitemaps (index) pages
🔗 Social & Meta Tags Complete
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TitlePostHog – Your product’s context layer
DescriptionPostHog automatically diagnoses problems, fixes bugs, and generates pull requests – all without you having to prompt it.
OG TitlePostHog – Your product’s context layer
OG DescriptionPostHog automatically diagnoses problems, fixes bugs, and generates pull requests – all without you having to prompt it.
OG Imagehttps://posthog.com/images/og/default.png
OG preview
OG Typewebsite
Twitter Cardsummary_large_image
Canonical URLhttps://posthog.com/
Languageen
📧 Mail Security ?Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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SPF✓ Present
v=spf1 include:_spf.google.com include:mail.zendesk.com include:servers.mcsv.net include:spf.mandrillapp.com include:amazonses.com include:mailgun.org -all
DMARC✓ Present
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected]; aspf=r; adkim=r; sp=reject;
MX Records
5 → alt2.aspmx.l.google.com
1 → aspmx.l.google.com
10 → alt3.aspmx.l.google.com
10 → alt4.aspmx.l.google.com
5 → alt1.aspmx.l.google.com
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 10 active 6 for sale 7 available
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.com current
.net taken
.org ●
.info taken
.io taken
.co ●
.dev taken
.app ●
.me ●
.biz taken
.eu taken
.xyz ●
.fi Available
.se Available
.de ●
.uk ●
.fr Available
.nl Available
.es Available
.it Available
.us ●
.ca ●
.com.au Available
.co.uk ●
📡 Uptime Monitor
▼
Current Status 🟢 Online
HTTP Status 200
Response Time 70ms
Last Checked 2026-10-29 02:45:06.396243
Uptime (30d) 100%