Captchainbox's tech stack
What does Captchainbox use?
Captchainbox (captchainbox.com) uses at least 6 tools we can see from public records, including Vercel for hosting, Cloudflare for content delivery and Resend for email delivery. Last checked .
“Pay-to-deliver inbox protection. Unknown senders pay the price set by the inbox owner while trusted contacts get through normally.”
- Tools found
- 6
- Categories
- 6
- Layers
- 3 of 5
- Last checked
- Oct 2026
Captchainbox's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
3 tools, where the bytes are served from
Application
2 tools, what the product is built with
Frontend
Company Ops
1 tool, what the team runs on day to day
Email Delivery
Captchainbox tech stack FAQ
What tools does Captchainbox use?
We've found 6 tools at Captchainbox (captchainbox.com). Edge & Hosting: Cloudflare, Vercel and Namecheap. Application: Next.js. Company Ops: Resend. Last checked October 2, 2026.
What cloud does Captchainbox run on?
Captchainbox uses Vercel for hosting. We found Vercel through custom domain, DNS records and website code.
Does Captchainbox use Cloudflare?
Yes. We found Cloudflare at Captchainbox through website code. Cloudflare is used by 147,753 companies we track.
How does runsonwhat know what Captchainbox uses?
We read public traces only: Captchainbox's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.