What is Proton Mail?
OtherProton Mail is a web technology: Encrypted email service. Tech Stack Detector identifies Proton Mail on any website by analysing DNS records.
Proton Mail is a web technology (Other). See websites using Proton Mail ↓
How Tech Stack Detector detects Proton Mail
Proton Mail is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.
- DNSProton mail servers in MX records
Websites using Proton Mail
No websites in our public index are known to use Proton Mail yet. Scan a site above that uses it to be the first. Your result becomes a shareable /site/… page.
Alternatives to Proton Mail
Other Other technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.
Compare Proton Mail
Side-by-side comparisons of Proton Mail with other Other technologies.
Popular technologies
The technologies most often detected across all websites scanned on Tech Stack Detector.
Frequently asked questions
What is Proton Mail?
Proton Mail is a web technology: Encrypted email service. Tech Stack Detector identifies Proton Mail on any website by analysing DNS records. Its official website is https://proton.me.
How can I tell if a website uses Proton Mail?
Enter any URL into Tech Stack Detector and it reports whether Proton Mail is present, with a confidence score and the exact evidence it matched. Detection is based on DNS records. No login or crawling of the site is required.
What are some alternatives to Proton Mail?
Other Other technologies Tech Stack Detector detects include Progressive Web App, Google Workspace, Microsoft 365, Zoho Mail, YouTube Embed and Google Maps. You can compare any of them side by side with Proton Mail.
Data last updated October 20, 2026 · based on 618 recently scanned websites.