# What does Square use?

Square (square.site) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-11-15).

- Industry: Software
- Size: 1,001–5,000 employees
- Based in: San Francisco, Japan
- Founded: 2022
- LinkedIn: https://www.linkedin.com/company/joinsquare

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code |  |
| [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [SvelteKit](https://www.runsonwhat.com/reverse/sveltekit) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Pinterest](https://www.runsonwhat.com/reverse/pinterest) | Ads & Pixels | Website code |  |
| [Contentful](https://www.runsonwhat.com/reverse/contentful) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code |  |

## FAQ

### What tools does Square use?

As of November 2026, runsonwhat has found 10 tools at Square (square.site) in public records. Edge & Hosting: Cloudflare and Amazon Route 53. Application: SvelteKit. Data & Observability: Sentry. Go-to-market: Pinterest and Contentful. Company Ops: OneTrust. Last checked November 15, 2026.

### What is Square's website built with?

Square uses Contentful for its website, according to runsonwhat (November 2026). runsonwhat found Contentful through Contentful code on square.site. Contentful is used by 4,373 companies runsonwhat tracks.

### What monitoring tools does Square use?

Square uses Sentry for monitoring, according to runsonwhat (November 2026). runsonwhat found Sentry through Sentry code on square.site. Sentry is used by 80,270 companies runsonwhat tracks.

### Does Square use Cloudflare?

Yes. runsonwhat found Cloudflare at Square through Cloudflare code on square.site. Cloudflare is a CDN & Edge tool used by 737,875 companies runsonwhat tracks.

### Which companies have a tech stack similar to Square's?

The companies with the stacks most like Square's are Jaid, Hospital São Domingos, 724 Care and Trigger, according to runsonwhat (November 2026). Each shares 1 to 4 tools with Square, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Square uses?

runsonwhat reads public records only. Of the 10 tools at Square, 7 were found through code on square.site, 2 through DNS records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and square.site about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/square.site (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.