# What does GitHub use?

GitHub (useoptic.com) shows public evidence of 11 tools, according to runsonwhat (last checked 2026-10-20).

- Industry: Engineering, Product and Design
- Size: 1–10 employees
- Based in: New York City, United States

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records |  |
| [GitHub Pages](https://www.runsonwhat.com/reverse/github-pages) | Hosting & Cloud | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS records |  |
| [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint) | Security & Compliance | Email records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Amazon Trust Services](https://www.runsonwhat.com/reverse/amazon-trust) | Security & Compliance | DNS records |  |
| [HackerOne](https://www.runsonwhat.com/reverse/hackerone) | Security & Compliance | Website config |  |

## FAQ

### What tools does GitHub use?

As of October 2026, runsonwhat has found 11 tools at GitHub (useoptic.com) in public records. Edge & Hosting: Amazon Route 53 and GitHub Pages. Company Ops: Google Workspace, Let's Encrypt and GlobalSign. Last checked October 20, 2026.

### What cloud does GitHub run on?

GitHub uses GitHub Pages for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found GitHub Pages through GitHub Pages code on useoptic.com. GitHub Pages is used by 3,975 companies runsonwhat tracks.

### What email provider does GitHub use?

GitHub 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 401,470 companies runsonwhat tracks.

### Does GitHub use Amazon Route 53?

Yes. runsonwhat found Amazon Route 53 at GitHub through DNS records that point at Amazon Route 53. Amazon Route 53 is a DNS tool used by 84,487 companies runsonwhat tracks.

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

The companies with the stacks most like GitHub's are Vocode, Mozilla, Carnival Cruise Deals and GOV.UK, according to runsonwhat (October 2026). Each shares 2 to 6 tools with GitHub, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what GitHub uses?

runsonwhat reads public records only. Of the 11 tools at GitHub, 6 were found through DNS records, 2 through email records, 2 through website configuration files and 1 through code on useoptic.com. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and useoptic.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/useoptic.com (updated October 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.