Websites using Proton Mail
We detect Proton Mail on 140 websites, <0.01% of the 12.7 million live sites we have crawled — and <0.01% of the 12,113 most popular, from authjs.dev to ericclapton.com.
Free with a verified account · up to 3 samples a month · CSV or JSON · ranks, contact pages, e-mails
Top sites using Proton Mail
Full list (140 sites) →Filter by rank and language. Contact pages and e-mails included.
Download a free sample →Where it is used
From the domain extension, not from where the site is hosted.
Country domains
- United Kingdom.uk4
- Italy.it3
- Switzerland.ch2
- Canada.ca2
- Japan.jp1
- Germany.de1
Languages
- English
- French
- Spanish
- German
- Italian
Proton Mail at a glance
We detect Proton Mail on 140 websites, <0.01% of the 12.7 million live sites we have crawled. It ranks 6th out of 12 in the Webmail category. It is more common among the most popular sites: <0.01% of the top 12,113 uses it (1), and <0.01% of the top 1.3 million (25). Sites using it often also use Cloudflare, Shopify and Cloudflare DNS. Its main alternatives in Webmail are Google Workspace, Microsoft 365 and Outlook Web App. The sites using it are most often in English, followed by French and Spanish.
Most popular sites: domains in the top 10,000 or the top 1 million of at least one public ranking (Tranco, Majestic, Open PageRank).
Tracked since October 2026.
140 live sites today
Counts follow the sites we crawl. Our crawl grew sharply in October 2026, so part of that month's rise reflects coverage, not adoption.
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