# What does Peter Cai use?

Peter Cai (petercai.com) shows public evidence of 7 tools, according to runsonwhat (last checked 2026-11-08).

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Email records, Website code |  |
| [Fly.io](https://www.runsonwhat.com/reverse/fly) | Hosting & Cloud | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Ghost](https://www.runsonwhat.com/reverse/ghost) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |

## FAQ

### What tools does Peter Cai use?

As of November 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 November 8, 2026.

### What cloud does Peter Cai run on?

Peter Cai uses Fly.io for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Fly.io through Fly.io code on petercai.com. Fly.io is used by 5,480 companies runsonwhat tracks.

### What email provider does Peter Cai use?

Peter Cai uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 418,241 companies runsonwhat tracks.

### What analytics tools does Peter Cai use?

Peter Cai uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on petercai.com. Google Analytics is used by 903,814 companies runsonwhat tracks.

### What is Peter Cai's website built with?

Peter Cai uses Ghost for its website, according to runsonwhat (November 2026). runsonwhat found Ghost through Ghost code on petercai.com. Ghost is used by 892 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 731,393 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, Addingwell By Didomi, Maev and Swipe Pages, according to runsonwhat (November 2026). Each shares 5 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.


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Source: runsonwhat, https://www.runsonwhat.com/company/petercai.com (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.