runsonwhat

Proton AG's tech stack

What does Proton AG use?

Proton AG (protonmail.com) uses at least 12 tools we can see from public records, including Proton Mail for email and documents, Discord for customer support, Ahrefs for marketing and Let's Encrypt for security. Last checked .

“Proton provides easy-to-use encrypted email, calendar, cloud storage, password manager, and VPN services, built on the principle of your data, your rules.”

Based in
Plan-les-Ouates, Switzerland
Founded
2014
LinkedIn
Company page
Re-check liveVisit protonmail.com
Tools found
12
Categories
6
Layers
3 of 5
Last checked
Oct 2026

Proton AG'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.

Application

3 tools, what the product is built with

Frontend

Media & UI

Go-to-market

5 tools, how they find and keep customers

Marketing

Support & Docs

Company Ops

4 tools, what the team runs on day to day

Workspace

Security & Compliance

Companies like Proton AG also use

Tools common among companies with a similar stack that we haven't found at Proton AG.

Companies with a stack like Proton AG's

Ranked by shared tools, with rare tools counting more.

Proton AG tech stack FAQ

What tools does Proton use?

As of October 2026, runsonwhat has found 12 tools at Proton (protonmail.com) in public records. Application: YouTube, Tailwind CSS and Astro. Go-to-market: Ahrefs, Yandex Webmaster and Discord. Company Ops: Let's Encrypt, Sectigo and DigiCert. Last checked October 20, 2026.

What email provider does Proton use?

Proton uses Proton Mail for email and office software, according to runsonwhat (October 2026). runsonwhat found Proton Mail through email records that authorize Proton Mail. Proton Mail is used by 2,497 companies runsonwhat tracks.

What does Proton use for customer support?

Proton uses Discord for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Discord through Discord code on protonmail.com. Discord is used by 6,225 companies runsonwhat tracks.

What marketing software does Proton use?

Proton uses Ahrefs for marketing, alongside Yandex Webmaster and Brave Creators, according to runsonwhat (October 2026). runsonwhat found Ahrefs through a DNS verification record for Ahrefs. Ahrefs is used by 23,879 companies runsonwhat tracks.

Does Proton use YouTube?

Yes. runsonwhat found YouTube at Proton through YouTube code on protonmail.com. YouTube is a Media & UI tool used by 390,037 companies runsonwhat tracks.

Which companies have a tech stack similar to Proton's?

The companies with the stacks most like Proton's are Icoa, Goldcore.com, Windows Central and Hubly Technologies, according to runsonwhat (October 2026). Each shares 2 to 3 tools with Proton, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Proton uses?

runsonwhat reads public records only. Of the 12 tools at Proton, 7 were found through DNS records, 4 through code on protonmail.com and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and protonmail.com about 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.