# What does Open Source Weekend use?

Open Source Weekend (opensourceweekend.org) shows public evidence of 12 tools, according to runsonwhat (last checked 2026-10-31).

- LinkedIn: https://www.linkedin.com/company/open-source-weekend

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [Astro](https://www.runsonwhat.com/reverse/astro) | Frontend | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Brevo](https://www.runsonwhat.com/reverse/brevo) | Marketing | DNS verification records |  |
| [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | DNS verification records, Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records |  |
| [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 |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records |  |

## FAQ

### What tools does Open Source Weekend use?

As of November 2026, runsonwhat has found 12 tools at Open Source Weekend (opensourceweekend.org) in public records. Edge & Hosting: Cloudflare. Application: Google Fonts and Astro. Go-to-market: Brevo and Zoho. Company Ops: Microsoft 365, Google Workspace and Let's Encrypt. Last checked October 31, 2026.

### What CRM does Open Source Weekend use?

Open Source Weekend uses Zoho for its CRM, according to runsonwhat (November 2026). runsonwhat found Zoho through a DNS verification record for Zoho and email records. Zoho is used by 63,712 companies runsonwhat tracks.

### What email provider does Open Source Weekend use?

Open Source Weekend uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 720,940 companies runsonwhat tracks.

### What marketing software does Open Source Weekend use?

Open Source Weekend uses Brevo for marketing, according to runsonwhat (November 2026). runsonwhat found Brevo through a DNS verification record for Brevo. Brevo is used by 81,562 companies runsonwhat tracks.

### Does Open Source Weekend use Google Fonts?

Yes. runsonwhat found Google Fonts at Open Source Weekend through Google Fonts code on opensourceweekend.org. Google Fonts is a Media & UI tool used by 825,837 companies runsonwhat tracks.

### How does runsonwhat know what Open Source Weekend uses?

runsonwhat reads public records only. Of the 12 tools at Open Source Weekend, 8 were found through DNS records, 2 through code on opensourceweekend.org and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and opensourceweekend.org about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/opensourceweekend.org (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.