# What does AppSumo use?

AppSumo (sumo.com) shows public evidence of 13 tools, according to runsonwhat (last checked 2026-10-20).

- Industry: Internet
- Size: 11–50 employees
- Based in: Austin, United States
- Founded: 2010
- LinkedIn: https://www.linkedin.com/company/sumo-group-sumo.com-appsumo.com-

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Help Scout](https://www.runsonwhat.com/reverse/helpscout) | Support & Docs | Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code |  |
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Mailgun](https://www.runsonwhat.com/reverse/mailgun) | Email Delivery | Email records, Website code |  |
| [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 |  |
| [Amazon Trust Services](https://www.runsonwhat.com/reverse/amazon-trust) | Security & Compliance | DNS records |  |

## FAQ

### What tools does AppSumo use?

As of October 2026, runsonwhat has found 13 tools at AppSumo (sumo.com) in public records. Edge & Hosting: Cloudflare. Application: React and Tailwind CSS. Go-to-market: Help Scout. Company Ops: Google Workspace, SendGrid and Let's Encrypt. Last checked October 20, 2026.

### What email provider does AppSumo use?

AppSumo uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on sumo.com. Google Workspace is used by 406,488 companies runsonwhat tracks.

### What does AppSumo use for customer support?

AppSumo uses Help Scout for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Help Scout through email records that authorize Help Scout. Help Scout is used by 2,935 companies runsonwhat tracks.

### Does AppSumo use Cloudflare?

Yes. runsonwhat found Cloudflare at AppSumo through DNS records that point at Cloudflare and code on sumo.com. Cloudflare is a CDN & Edge tool used by 712,212 companies runsonwhat tracks.

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

The companies with the stacks most like AppSumo's are CV.fr, Molecule, Wafeq and Search On Media Group, according to runsonwhat (October 2026). Each shares 4 to 7 tools with AppSumo, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what AppSumo uses?

runsonwhat reads public records only. Of the 13 tools at AppSumo, 7 were found through DNS records, 4 through email records and 2 through code on sumo.com. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and sumo.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/sumo.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.