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Proton Mail on new websites

Swiss end-to-end encrypted email service.

#22 of 4746 in Email Hosting In our data since Apr 2026 Last seen: Oct 16, 2026 Most recent launch: gRit · See your Git workflow. Shape it., Oct 16, 2026 Website: proton.me

9,878 sites

9,244 found by StackScope, 634 via launch platforms

StackScope Wider Web 6,553 StackScope Discovery (Indie) 2,691 Product Hunt 388 Hacker News 113 PeerPush 67 Other 66
  • StackScope Wider Web 6,553
  • StackScope Discovery (Indie) 2,691
  • Product Hunt 388
  • Hacker News 113
  • PeerPush 67
  • Other 66
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web

Proton Mail appeared on about 2,400 new sites in the last 30 days.

These figures cover websites that went live since April 2026, not the web as a whole.

Stackdar alerts

Get told when a new site ships with Proton Mail.

2,421 new sites with Proton Mail first seen in the last 30 days.

Stackdar watches every launch we detect and sends you the ones using Proton Mail, by email, Slack or webhook. On every plan, from £15 a month.

See how alerts work

Share of new sites using Proton Mail

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026.

0.1%
last 7 days
-0.0pp vs prior week
0.1%
30 days to Oct 15
-0.0pp vs 30 days before
9,878
sites all time
since Apr 2026
Proton Mail daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 10 September 2026: we improved our infrastructure to index new sites much sooner, often on the day they go live, so the cohort this share is measured against changes here. 5% 2% 0% Apr May Jun Jul Aug Sep Oct Weekly averages before this point, daily after. Jul 18 · 48 / 24700 = 0.2% Jul 19 · 50 / 27640 = 0.2% Jul 20 · 50 / 23851 = 0.2% Jul 21 · 62 / 22944 = 0.3% Jul 22 · 66 / 24372 = 0.3% Jul 23 · 62 / 18101 = 0.3% Jul 24 · 44 / 13980 = 0.3% Jul 25 · 31 / 9550 = 0.3% Jul 26 · 65 / 21750 = 0.3% Jul 27 · 86 / 37233 = 0.2% Jul 28 · 99 / 41885 = 0.2% Jul 29 · 123 / 53559 = 0.2% Jul 30 · 106 / 48256 = 0.2% Jul 31 · 122 / 56048 = 0.2% Aug 1 · 142 / 54886 = 0.3% Aug 2 · 127 / 53850 = 0.2% Aug 3 · 110 / 52614 = 0.2% Aug 4 · 103 / 40704 = 0.3% Aug 5 · 85 / 35346 = 0.2% Aug 6 · 104 / 39149 = 0.3% Aug 7 · 87 / 40250 = 0.2% Aug 8 · 84 / 42805 = 0.2% Aug 9 · 95 / 37777 = 0.3% Aug 10 · 65 / 32323 = 0.2% Aug 11 · 74 / 34557 = 0.2% Aug 12 · 86 / 37135 = 0.2% Aug 13 · 124 / 55468 = 0.2% Aug 14 · 113 / 56751 = 0.2% Aug 15 · 115 / 55907 = 0.2% Aug 16 · 117 / 56270 = 0.2% Aug 17 · 86 / 45696 = 0.2% Aug 18 · 110 / 56636 = 0.2% Aug 19 · 112 / 51679 = 0.2% Aug 20 · 101 / 68973 = 0.1% Aug 21 · 185 / 93843 = 0.2% Aug 22 · 154 / 94188 = 0.2% Aug 23 · 172 / 93592 = 0.2% Aug 24 · 133 / 81708 = 0.2% Aug 25 · 125 / 71529 = 0.2% Aug 26 · 108 / 66854 = 0.2% Aug 27 · 164 / 87832 = 0.2% Aug 28 · 158 / 87905 = 0.2% Aug 29 · 137 / 88061 = 0.2% Aug 30 · 169 / 100668 = 0.2% Aug 31 · 189 / 100235 = 0.2% Sep 1 · 147 / 103413 = 0.1% Sep 2 · 174 / 108914 = 0.2% Sep 3 · 146 / 103275 = 0.1% Sep 4 · 163 / 98530 = 0.2% Sep 5 · 178 / 102853 = 0.2% Sep 6 · 128 / 89271 = 0.1% Sep 7 · 109 / 86119 = 0.1% Sep 8 · 126 / 77964 = 0.2% Sep 9 · 110 / 75510 = 0.1% Sep 10 · 97 / 83643 = 0.1% Sep 11 · 123 / 85544 = 0.1% Sep 12 · 76 / 56763 = 0.1% Sep 13 · 71 / 57987 = 0.1% Sep 14 · 87 / 59224 = 0.1% Sep 15 · 88 / 58180 = 0.2% Sep 16 · 67 / 58939 = 0.1% Sep 17 · 62 / 56745 = 0.1% Sep 18 · 65 / 53080 = 0.1% Sep 19 · 56 / 45268 = 0.1% Sep 20 · 62 / 44755 = 0.1% Sep 21 · 62 / 51659 = 0.1% Sep 22 · 80 / 55401 = 0.1% Sep 23 · 78 / 58304 = 0.1% Sep 24 · 71 / 53457 = 0.1% Sep 25 · 63 / 50756 = 0.1% Sep 26 · 158 / 101513 = 0.2% Sep 27 · 79 / 52130 = 0.2% Sep 28 · 69 / 61105 = 0.1% Sep 29 · 128 / 77847 = 0.2% Sep 30 · 108 / 69707 = 0.2% Oct 1 · 83 / 69219 = 0.1% Oct 2 · 85 / 64714 = 0.1% Oct 3 · 63 / 53731 = 0.1% Oct 4 · 71 / 52048 = 0.1% Oct 5 · 75 / 63685 = 0.1% Oct 6 · 78 / 67582 = 0.1% Oct 7 · 99 / 67654 = 0.1% Oct 8 · 81 / 69304 = 0.1% Oct 9 · 76 / 70336 = 0.1% Oct 10 · 73 / 60630 = 0.1% Oct 11 · 82 / 65589 = 0.1% Oct 12 · 68 / 66620 = 0.1% Oct 13 · 82 / 70915 = 0.1% Oct 14 · 88 / 70641 = 0.1% Oct 15 · 109 / 93404 = 0.1%
Mar 30, 2026 90 days Oct 15, 2026

The shaded areas were measured against a different set of sites, so the line can step there without Proton Mail itself changing.

Coverage details

Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.

Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.

Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.

The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

What kind of sites use Proton Mail

3,906 sites with a known type, all time

Developer Tools
17.7%
Health
11.5%
Productivity
10.4%
Finance
10.0%
Content
7.0%
Marketing
7.0%
AI
6.4%
Education
6.0%
E-commerce
5.7%
Games
5.4%
Social
4.6%
Crypto
3.5%
Design
2.6%
Hiring & HR
1.4%
Directory
0.7%

Domain endings using Proton Mail

9,865 sites, all time

  • .com 49.7%
  • .app 6.6%
  • .io 4.9%
  • .dev 4.4%
  • .ai 4.3%
  • .org 4.1%
  • .uk 3.2%
  • .net 2.6%
  • .ca 2.5%
  • .co 2.1%
  • .fr 2.1%
  • .me 1.5%
  • .xyz 1.2%
  • .tech 1.1%
  • .ch 1.1%

Country

Country likely for 1,429 of 9,878 sites (14.5%), all time.

How we know

Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.

  • United Kingdom United Kingdom 22.1%
  • France France 16.4%
  • United States United States 14.5%
  • Canada Canada 11.2%
  • Switzerland Switzerland 6.7%
  • Sweden Sweden 3.5%
  • Germany Germany 3.4%
  • Australia Australia 2.9%
  • Netherlands Netherlands 2.2%
  • New Zealand New Zealand 2.0%
  • Ireland Ireland 1.8%
  • Estonia Estonia 1.5%
  • Spain Spain 1.3%
  • India India 1.2%
  • Poland Poland 1.1%

Green hosting

634 checked sites since Apr 2026.

What this means

The share whose web host The Green Web Foundation lists as running on green energy, against the average for every new site we checked.

  • Proton Mail 59%
  • Average 47%

Email Hosting leaders

Tool % of sitesall time % of categoryall time
#1 – Google Workspace 5.7% 20.0%
#2 – Hostinger Email 4.8% 16.7%
#3 – GoDaddy Email 2.2% 7.8%
#4 – Microsoft 365 1.9% 6.8%
#5 ▲1 IONOS Email 1.7% 5.9%
…
#22 ▼5 Proton Mail Current page 0.2% 0.6%

Percentages show all-time adoption across the new sites we track: the share of all of them, and of the sites using any Email Hosting tool.The most common alternatives to Proton Mail on new websites are Google Workspace and GoDaddy Email.Among September launches it ranked #24 in Email Hosting, down from #19 in August. All 4746 in Email Hosting →

Recent launches using Proton Mail

3,325 of the 9,878 sites using Proton Mail are product launches we list individually. The other 6,553 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works

gRit · See your Git workflow. Shape it. Oct 16, 2026 · Developer Tools Also detected Next.js React Vercel Atlassian Běž podle trati, ne podle stopek | Threshold Oct 16, 2026 Also detected Next.js React Vercel Cloudflare DNS Kraampje: van DM naar betaalde bestelling in één link Oct 16, 2026 · Marketing Also detected Next.js React Cloudflare Resend Ara · Better in pairs Oct 16, 2026 · Social Also detected Astro Amazon Web Services Gandi DNS Lunexis — A calmer way to checkout Oct 16, 2026 · E-commerce Also detected Next.js React Railway Cloudflare DNS AI automation for infrastructure and CDN Oct 16, 2026 · Developer Tools Also detected Google Fonts Hetzner DNS nginx Tealbrick: ready-made mini apps for the people who deploy AI agents Oct 16, 2026 · AI Also detected Next.js React Railway Clerk File tools that never upload your files — Reshape File Oct 16, 2026 · Productivity Also detected Cloudflare Google Search Console Lucide Icons Tailwind CSS Free PDF Tools in Your Browser – No Upload | pdftools Oct 16, 2026 · Productivity Also detected SvelteKit Svelte Cloudflare Google Ads Vidarte · Bald da Oct 16, 2026 Also detected INWX DASTEC Insights | Boutique Offensive-Security Advisory Oct 16, 2026 Also detected Cloudflare Bower: a private place for your people | Bower Oct 16, 2026 · Social Also detected Rails Cloudflare Google Sign-In Hotwire Turbo

Showing the most recent 12 of 3,325.

The StackScope API serves all 9,878 sites using Proton Mail, filterable and exportable, from £15 a month.

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.