Courier's tech stack
What does Courier use?
Courier (courier.com) uses at least 29 tools we can see from public records, including Vercel for hosting, Google Workspace for email and documents, Intercom for customer support and Google Tag Manager for analytics. Last checked .
“The fastest way for developers to build notifications for their app.”
- Industry
- Engineering, Product and Design
- Size
- 11–50 employees
- Based in
- San Francisco, United States
- Founded
- 2019
- Company page
- Tools found
- 29
- Categories
- 19
- Layers
- 5 of 5
- Last checked
- Oct 2026
Courier'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
3 tools, where the bytes are served from
Application
7 tools, what the product is built with
Auth & Identity
Backend & Database
Payments & Billing
Media & UI
Data & Observability
6 tools, what they measure and store
Analytics
Data Pipeline
Go-to-market
4 tools, how they find and keep customers
Website & CMS
Marketing
Support & Docs
Company Ops
9 tools, what the team runs on day to day
Email Delivery
Collaboration
Dev Tools
Security & Compliance
Courier tech stack FAQ
What tools does Courier use?
We've found 29 tools at Courier (courier.com). Edge & Hosting: Cloudflare, Amazon Route 53 and Vercel. Application: Google Fonts, Anthropic and OpenAI. Data & Observability: Google Tag Manager, Sentry and Atlassian Statuspage. Go-to-market: Intercom, Framer and UserVoice. Company Ops: Google Workspace, SendGrid and Apple Business. Last checked October 2, 2026.
What cloud does Courier run on?
Courier uses Vercel for hosting. We found Vercel through custom domain, DNS verification records, DNS records and website code.
What email provider does Courier use?
Courier uses Google Workspace and Apple Business for email and documents. We found Google Workspace through email records.
What does Courier use for customer support?
Courier uses Intercom and UserVoice for customer support. We found Intercom through email records and website code.
What payment provider does Courier use?
Courier uses Stripe for payments. We found Stripe through DNS verification records and subprocessor list.
What analytics tools does Courier use?
Courier uses Google Tag Manager and Segment for analytics. We found Google Tag Manager through website code.
Does Courier use Cloudflare?
Yes. We found Cloudflare at Courier through custom domain, website code and subprocessor list. Cloudflare is used by 147,753 companies we track.
How does runsonwhat know what Courier uses?
We read public traces only: Courier'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.