# What does Preauth use?

Preauth (preauth.io) shows public evidence of 8 tools, according to runsonwhat (last checked 2026-11-10).

- Industry: Internet
- Size: 11–50 employees
- Based in: Delaware, United States
- Founded: 2021
- LinkedIn: https://www.linkedin.com/company/preauth

## Edge & Hosting

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

## Application

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

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [GitBook](https://www.runsonwhat.com/reverse/gitbook) | Support & Docs | Custom domain |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [PowerDMARC](https://www.runsonwhat.com/reverse/powerdmarc) | Security & Compliance | Email records |  |

## FAQ

### What tools does Preauth use?

As of November 2026, runsonwhat has found 8 tools at Preauth (preauth.io) in public records. Edge & Hosting: Amazon Route 53 and Amazon CloudFront. Application: Next.js. Go-to-market: GitBook. Company Ops: Google Workspace, SendGrid and PowerDMARC. Last checked November 10, 2026.

### What email provider does Preauth use?

Preauth uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 420,125 companies runsonwhat tracks.

### What does Preauth use for customer support?

Preauth uses GitBook for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found GitBook through a subdomain that points at GitBook. GitBook is used by 2,080 companies runsonwhat tracks.

### Does Preauth use SendGrid?

Yes. runsonwhat found SendGrid at Preauth through email records that authorize SendGrid. SendGrid is a Email Delivery tool used by 200,307 companies runsonwhat tracks.

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

The companies with the stacks most like Preauth's are Molecule, Veikul, Day By Day and Planet Crust, according to runsonwhat (November 2026). Each shares 4 to 5 tools with Preauth, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Preauth uses?

runsonwhat reads public records only. Of the 8 tools at Preauth, 3 were found through email records, 2 through DNS records, 2 through code on preauth.io and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and preauth.io about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/preauth.io (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.