We're live on Product Hunt. If you have found StackScope useful, a comment would mean a lot. See the launch

← All technologies

Sites using Proton Mail

Swiss end-to-end encrypted email service.

#20 of 3045 in Email Hosting Tracked since Apr 2026 Last seen: Sep 1, 2026 Website: proton.me
Stackdar alerts

Get told when a new site ships with Proton Mail.

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

5,718 sites

5,244 found by StackScope, 474 via launch platforms

StackScope Wider Web 3,754 StackScope Discovery (Indie) 1,490 Product Hunt 316 Hacker News 87 PeerPush 52 Other 19
  • StackScope Wider Web 3,754
  • StackScope Discovery (Indie) 1,490
  • Product Hunt 316
  • Hacker News 87
  • PeerPush 52
  • Other 19
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.2% -0.0pp
Most used with Google Search Console, HSTS, Cloudflare DNS
Top product types Developer Tools, Productivity, Health
Green hosting 57% vs 45% avg

Proton Mail has been detected on 5,718 launches we've crawled. The 7-day rolling share is 0.2%, roughly steady week on week. Most recent detection: Catchalog, today.

It's most commonly paired with Google Search Console, HSTS, and Cloudflare DNS. By product type, the launches using it are most often Developer Tools (20%), Productivity (11%), and Health (11%). By estimated origin, the United States (26%) and the United Kingdom (18%) lead close together. By domain ending, launches using it are 2.6 times as likely as the average launch to live on a .studio domain.

What kind of products ship with Proton Mail

2,301 launches

Developer Tools
19.60%
Productivity
11.21%
Health
10.56%
Finance
9.82%
AI
7.00%
Marketing
6.95%
Content
6.08%
Education
6.08%
E-commerce
5.30%
Social
4.65%
Games
4.52%
Crypto
3.65%
Design
2.43%
Hiring & HR
1.43%
Directory
0.70%

Domain endings using Proton Mail

5,708 sites

  • .com 44.59%
  • .app 8.34%
  • .io 6.36%
  • .dev 5.75%
  • .ai 5.55%
  • .ca 3.82%
  • .org 3.78%
  • .uk 2.72%
  • .co 2.68%
  • .net 2.44%
  • .me 1.89%
  • .xyz 1.59%
  • .tech 1.37%
  • .ch 1.03%
  • .online 0.95%

Country

129 of 5,718 sites, where we are confident of the country.

  • United States United States 25.58%
  • United Kingdom United Kingdom 17.83%
  • Estonia Estonia 6.98%
  • Australia Australia 6.20%
  • France France 5.43%
  • Netherlands Netherlands 5.43%
  • Germany Germany 3.10%
  • United Arab Emirates United Arab Emirates 2.33%
  • Belgium Belgium 2.33%
  • Canada Canada 2.33%
  • Switzerland Switzerland 2.33%
  • Cyprus Cyprus 1.55%
  • Czechia Czechia 1.55%
  • Denmark Denmark 1.55%
  • Finland Finland 1.55%

Share of new sites using Proton Mail

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

0.2%
last 7 days
-0.0pp vs prior week
5,718
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. 5% 2% 0% Apr May Jun Jul Aug Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount. Weekly averages before this point, daily after. Jun 3 · 2 / 714 = 0.3% Jun 4 · 6 / 599 = 1.0% Jun 5 · 2 / 581 = 0.3% Jun 6 · 4 / 436 = 0.9% Jun 7 · 1 / 404 = 0.2% Jun 8 · 0 / 515 = 0.0% Jun 9 · 6 / 876 = 0.7% Jun 10 · 3 / 722 = 0.4% Jun 11 · 1 / 577 = 0.2% Jun 12 · 0 / 449 = 0.0% Jun 13 · 3 / 380 = 0.8% Jun 14 · 2 / 345 = 0.6% Jun 15 · 5 / 532 = 0.9% Jun 16 · 2 / 1052 = 0.2% Jun 17 · 6 / 907 = 0.7% Jun 18 · 6 / 674 = 0.9% Jun 19 · 3 / 547 = 0.5% Jun 20 · 1 / 443 = 0.2% Jun 21 · 2 / 383 = 0.5% Jun 22 · 2 / 576 = 0.3% Jun 23 · 5 / 900 = 0.6% Jun 24 · 1 / 737 = 0.1% Jun 25 · 0 / 618 = 0.0% Jun 26 · 6 / 534 = 1.1% Jun 27 · 2 / 431 = 0.5% Jun 28 · 3 / 383 = 0.8% Jun 29 · 3 / 503 = 0.6% Jun 30 · 9 / 801 = 1.1% Jul 1 · 4 / 795 = 0.5% Jul 2 · 0 / 604 = 0.0% Jul 3 · 3 / 499 = 0.6% Jul 4 · 3 / 411 = 0.7% Jul 5 · 1 / 367 = 0.3% Jul 6 · 2 / 551 = 0.4% Jul 7 · 2 / 1171 = 0.2% Jul 8 · 42 / 12590 = 0.3% Jul 9 · 74 / 23745 = 0.3% Jul 10 · 82 / 22551 = 0.4% Jul 11 · 47 / 15979 = 0.3% Jul 12 · 41 / 20291 = 0.2% Jul 13 · 48 / 20922 = 0.2% Jul 14 · 48 / 20408 = 0.2% Jul 15 · 45 / 17242 = 0.3% Jul 16 · 32 / 14264 = 0.2% Jul 17 · 41 / 19732 = 0.2% Jul 18 · 44 / 22700 = 0.2% Jul 19 · 43 / 26075 = 0.2% Jul 20 · 51 / 22586 = 0.2% Jul 21 · 58 / 21649 = 0.3% Jul 22 · 69 / 23202 = 0.3% Jul 23 · 59 / 16863 = 0.3% Jul 24 · 44 / 12855 = 0.3% Jul 25 · 28 / 8946 = 0.3% Jul 26 · 62 / 19976 = 0.3% Jul 27 · 85 / 33865 = 0.3% Jul 28 · 96 / 38221 = 0.3% Jul 29 · 122 / 50103 = 0.2% Jul 30 · 113 / 43951 = 0.3% Jul 31 · 125 / 51109 = 0.2% Aug 1 · 138 / 50479 = 0.3% Aug 2 · 138 / 49661 = 0.3% Aug 3 · 109 / 48190 = 0.2% Aug 4 · 105 / 37326 = 0.3% Aug 5 · 88 / 32706 = 0.3% Aug 6 · 102 / 36580 = 0.3% Aug 7 · 97 / 37888 = 0.3% Aug 8 · 87 / 39680 = 0.2% Aug 9 · 88 / 34205 = 0.3% Aug 10 · 72 / 28846 = 0.2% Aug 11 · 72 / 32017 = 0.2% Aug 12 · 84 / 33478 = 0.3% Aug 13 · 120 / 49911 = 0.2% Aug 14 · 109 / 51428 = 0.2% Aug 15 · 113 / 51492 = 0.2% Aug 16 · 111 / 51804 = 0.2% Aug 17 · 86 / 41406 = 0.2% Aug 18 · 117 / 53842 = 0.2% Aug 19 · 112 / 49414 = 0.2% Aug 20 · 112 / 66830 = 0.2% Aug 21 · 191 / 90357 = 0.2% Aug 22 · 166 / 91514 = 0.2% Aug 23 · 171 / 90226 = 0.2% Aug 24 · 144 / 78837 = 0.2% Aug 25 · 134 / 69248 = 0.2% Aug 26 · 122 / 65053 = 0.2% Aug 27 · 168 / 83367 = 0.2% Aug 28 · 171 / 83305 = 0.2% Aug 29 · 143 / 84154 = 0.2% Aug 30 · 166 / 92073 = 0.2% Aug 31 · 183 / 88567 = 0.2%
Mar 30, 2026 90 days Aug 31, 2026

The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.

⋮ Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount.

Email Hosting leaders

Tool % of launches % of category
#1 ▼1 PrivateEmail 6.69% 19.52%
#2 ▼1 Google Workspace 6.64% 19.37%
#3 ▲2 Hostinger Email 6.43% 18.76%
#4 ▼1 Zoho Mail 1.89% 5.50%
#5 ▲1 IONOS Email 1.78% 5.18%
…
#20 ▼6 Proton Mail Current page 0.23% 0.67%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Email Hosting tool.The most common alternatives to Proton Mail among indie launches are PrivateEmail and Google Workspace.Among August launches it ranked #21 in Email Hosting, down from #15 in July. All 3045 in Email Hosting →

Often used with

Tool Launches
Google Search Console 338
HSTS 279
Cloudflare DNS 253
Cloudflare 240
Tailwind CSS 240

Tools most often detected on the same launches as Proton Mail.

Recent launches we can show

1,964 of the 5,718 sites using Proton Mail are product launches we list individually. The other 3,754 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works

Catchalog Sep 1, 2026 SlantScan — See any news article's slant in 10 seconds Sep 1, 2026 Kelvin Compute — Turning waste Energy into High-Performance Compute Sep 1, 2026 ThaiTripPlanner — The #1 Thailand Trip Planner on the Internet Sep 1, 2026 Calmis — Ваше пространство. Только свои Sep 1, 2026 Productivity Cascade, the gap Sep 1, 2026 Developer Tools Quantlix — The AI Runtime Control Plane Sep 1, 2026 GMatchr | Pokémon Card Trading Sep 1, 2026 Wander-Points — Wandelknooppunten-routes Sep 1, 2026 無料オンラインリズムマシン・ドラム打ち込みツール・リズムゲーム＆MIDI生成 | RhythmPedia.com Sep 1, 2026 Screenshot of KindLumen, a launch using Proton Mail KindLumen Sep 1, 2026 · score 7.6 United States Finance Screenshot of OutOnTime, a launch using Proton Mail OutOnTime Sep 1, 2026 · score 7.1 Productivity

Showing the most recent 12 of 1,964.

The StackScope API serves all 5,718 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.