runsonwhat

Peter Cai's tech stack

What does Peter Cai use?

Peter Cai (petercai.com) uses at least 7 tools we can see from public records, including Fly.io for hosting, Google Workspace for email and documents, Google Analytics for analytics and Ghost for its website. Last checked .

Re-check liveVisit petercai.com
Tools found
7
Categories
7
Layers
5 of 5
Last checked
Oct 2026

Peter Cai'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

2 tools, where the bytes are served from

Hosting & Cloud

CDN & Edge

Application

1 tool, what the product is built with

AI

Data & Observability

1 tool, what they measure and store

Analytics

Go-to-market

2 tools, how they find and keep customers

Website & CMS

Marketing

Company Ops

1 tool, what the team runs on day to day

Workspace

Companies like Peter Cai also use

Tools common among companies with a similar stack that we haven't found at Peter Cai.

Companies with a stack like Peter Cai's

Ranked by shared tools, with rare tools counting more.

Peter Cai tech stack FAQ

What tools does Peter Cai use?

As of October 2026, runsonwhat has found 7 tools at Peter Cai (petercai.com) in public records. Edge & Hosting: Cloudflare and Fly.io. Data & Observability: Google Analytics. Go-to-market: Ghost. Company Ops: Google Workspace. Last checked October 21, 2026.

What cloud does Peter Cai run on?

Peter Cai uses Fly.io for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Fly.io through Fly.io code on petercai.com. Fly.io is used by 4,961 companies runsonwhat tracks.

What email provider does Peter Cai use?

Peter Cai uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 406,184 companies runsonwhat tracks.

What analytics tools does Peter Cai use?

Peter Cai uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on petercai.com. Google Analytics is used by 891,092 companies runsonwhat tracks.

What is Peter Cai's website built with?

Peter Cai uses Ghost for its website, according to runsonwhat (October 2026). runsonwhat found Ghost through Ghost code on petercai.com. Ghost is used by 879 companies runsonwhat tracks.

Does Peter Cai use Cloudflare?

Yes. runsonwhat found Cloudflare at Peter Cai through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 709,728 companies runsonwhat tracks.

Which companies have a tech stack similar to Peter Cai's?

The companies with the stacks most like Peter Cai's are Comfy Deploy, Ents24, Addingwell By Didomi and Logseq, according to runsonwhat (October 2026). Each shares 2 to 5 tools with Peter Cai, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Peter Cai uses?

runsonwhat reads public records only. Of the 7 tools at Peter Cai, 3 were found through code on petercai.com, 2 through DNS records, 1 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and petercai.com about 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.