# What does Envelope use?

Envelope (openenvelope.org) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-10-20).

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |
| [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | Subprocessor list |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Plausible](https://www.runsonwhat.com/reverse/plausible) | Analytics | Website code, Subprocessor list |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records |  |
| [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records, Subprocessor list |  |
| [Replit](https://www.runsonwhat.com/reverse/replit) | Dev Tools | DNS verification records |  |
| [GitHub](https://www.runsonwhat.com/reverse/github) | Dev Tools | Subprocessor list |  |

## Recent changes at Envelope

- 2026-10-09: started using [Google Search Console](https://www.runsonwhat.com/reverse/gsc)
- 2026-10-09: started using [Replit](https://www.runsonwhat.com/reverse/replit)
- 2026-10-09: started using [Amazon SES](https://www.runsonwhat.com/reverse/ses)

## FAQ

### What tools does Envelope use?

As of October 2026, runsonwhat has found 10 tools at Envelope (openenvelope.org) in public records. Edge & Hosting: Cloudflare. Application: Next.js and Stripe. Data & Observability: Plausible. Company Ops: Amazon SES, Resend and Replit. Last checked October 20, 2026.

### What payment provider does Envelope use?

Envelope uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through Stripe on openenvelope.org's subprocessor list. Stripe is used by 29,210 companies runsonwhat tracks.

### What analytics tools does Envelope use?

Envelope uses Plausible for analytics, according to runsonwhat (October 2026). runsonwhat found Plausible through Plausible code on openenvelope.org and its subprocessor list. Plausible is used by 7,175 companies runsonwhat tracks.

### Does Envelope use Cloudflare?

Yes. runsonwhat found Cloudflare at Envelope through email records that authorize Cloudflare and DNS records. Cloudflare is a CDN & Edge tool used by 707,935 companies runsonwhat tracks.

### Has Envelope changed tools recently?

Yes. On runsonwhat's rechecks, Envelope started using Google Search Console, Replit and Amazon SES (latest on October 9, 2026). A change counts only between two checks of openenvelope.org done the same way.

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

The companies with the stacks most like Envelope's are Choicely, bugzero, Plentific and Stadia Maps, according to runsonwhat (October 2026). Each shares 4 to 6 tools with Envelope, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Envelope uses?

runsonwhat reads public records only. Of the 10 tools at Envelope, 3 were found through email records, 2 through DNS records, 2 through code on openenvelope.org, 2 through its own subprocessor list and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and openenvelope.org about monthly.


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