PostHog's tech stack
What does PostHog use?
PostHog (posthog.com) uses at least 42 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, HubSpot for sales and Zendesk for customer support. Last checked .
“The single platform to analyze, test, observe, and deploy new features”
- Industry
- Analytics
- Size
- 51–200 employees
- Based in
- San Francisco, United States
- Company page
- Tools found
- 42
- Categories
- 21
- Oldest proven tool
- Jan 2020
- Last checked
- Oct 2026
PostHog's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
5 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
11 tools, what the product is built with
Backend & Database
Payments & Billing
Media & UI
Data & Observability
7 tools, what they measure and store
Flags & Experiments
Go-to-market
6 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
13 tools, what the team runs on day to day
Collaboration
Dev Tools
Finance & Legal
Security & Compliance
What changed at PostHog
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Companies like PostHog also use
Tools common among companies with a similar stack that we haven't found at PostHog.
Companies with a stack like PostHog's
Ranked by shared tools, with rare tools counting more.
Crusoecrusoe.ai12in common
Massey ServicesPest Control7in common
MongoDBBusiness Software · 5,001–10,000 people16in common
RobinhoodFinancial Services16in common
RevenueCatEngineering, Product and Design · 51–200 people15in common
Engel & VölkersReal Estate Agent · 10,000+ people12in common
Moca InteractiveMarketing and Advertising · 51–200 people8in common
Aircall.io, Inc.201–1,000 people18in common
More Analytics companies
Other Analytics companies we've checked.
PostHog tech stack FAQ
What tools does PostHog use?
We've found 42 tools at PostHog (posthog.com). Edge & Hosting: Cloudflare, Amazon Web Services and Amazon CloudFront. Application: Google Fonts, React and Anthropic. Data & Observability: web-vitals, PostHog and Bugsnag. Go-to-market: Mailchimp, HubSpot and Shopify. Company Ops: Microsoft 365, Google Workspace and Apple Business. Last checked October 7, 2026.
What cloud does PostHog run on?
PostHog uses Amazon Web Services, Vercel and DigitalOcean for hosting. We found Amazon Web Services through custom domain and website code since January 2020.
What CRM does PostHog use?
PostHog uses HubSpot for sales and CRM. We found HubSpot through website code.
What email provider does PostHog use?
PostHog uses Microsoft 365, Google Workspace and Apple Business for email and documents. We found Microsoft 365 through DNS verification records.
What does PostHog use for customer support?
PostHog uses Zendesk for customer support. We found Zendesk through email records and website code.
What payment provider does PostHog use?
PostHog uses Stripe for payments. We found Stripe through DNS verification records and website code.
Does PostHog use Microsoft 365?
Yes. We found Microsoft 365 at PostHog through DNS verification records. Microsoft 365 is used by 685,682 companies we track.
How does runsonwhat know what PostHog uses?
We read public traces only: PostHog's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.