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Sites using OpenSRS Hosted Email

White-label hosted email platform sold to registrars and resellers by OpenSRS.

#13 of 3766 in Email Hosting Tracked since Apr 2026 Last seen: Sep 17, 2026 Website: opensrs.com
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18,642 sites

18,592 found by StackScope, 50 via launch platforms

StackScope Wider Web 18,354 StackScope Discovery (Indie) 238 Product Hunt 41 Hacker News 4 PeerPush 4 Other 1
  • StackScope Wider Web 18,354
  • StackScope Discovery (Indie) 238
  • Product Hunt 41
  • Hacker News 4
  • PeerPush 4
  • Other 1
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.5% -0.1pp
Most used with HostedEmail, HSTS, Cloudflare
Top product types E-commerce, Health, Games
Green hosting 54% vs 46% avg

OpenSRS Hosted Email has been detected on 18,642 launches we've crawled, with 6966 of those in September 2026 (0.6% of the month's launches so far). The 7-day rolling share is 0.5%, roughly steady week on week. Most recent detection: Arcis | From insights to impact, today.

It's most commonly paired with HostedEmail, HSTS, and Cloudflare. By product type, the launches using it are most often E-commerce (66%), Health (14%), and Games (3%). By domain ending, launches using it are 15.4 times as likely as the average launch to live on a .store domain. The 50 scored launches using OpenSRS Hosted Email average a StackScope score of 7.4 out of 10, against 6.4 across all launches we score.

What kind of products ship with OpenSRS Hosted Email

5,136 launches

E-commerce
66.24%
Health
13.71%
Games
2.88%
Finance
2.32%
Content
2.28%
Design
2.24%
Social
2.10%
Education
1.97%
Productivity
1.97%
Marketing
1.77%
Developer Tools
0.99%
AI
0.66%
Directory
0.39%
Hiring & HR
0.33%
Crypto
0.16%

Domain endings using OpenSRS Hosted Email

18,630 sites

  • .com 71.02%
  • .store 6.55%
  • .co 5.19%
  • .in 4.13%
  • .uk 2.96%
  • .net 2.35%
  • .ca 2.25%
  • .us 1.76%
  • .org 1.39%
  • .online 0.42%
  • .nz 0.35%
  • .se 0.24%
  • .fr 0.20%
  • .app 0.18%
  • .io 0.12%

Country

1,602 of 18,642 sites, where we are semi-confident of the country.

  • India India 31.27%
  • United Kingdom United Kingdom 27.28%
  • Canada Canada 15.92%
  • United States United States 13.55%
  • New Zealand New Zealand 3.06%
  • Sweden Sweden 2.56%
  • France France 2.25%
  • Spain Spain 1.00%
  • Italy Italy 0.75%
  • Australia Australia 0.69%
  • Netherlands Netherlands 0.56%
  • Germany Germany 0.37%
  • Poland Poland 0.19%
  • Switzerland Switzerland 0.12%
  • Czechia Czechia 0.06%

Share of new sites using OpenSRS Hosted Email

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

0.5%
last 7 days
-0.1pp vs prior week
0.6%
September so far
6,966 of 1,186,216 sites
18,642
sites all time
since Apr 2026
OpenSRS Hosted Email 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 Sep 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 19 · 0 / 547 = 0.0% Jun 20 · 0 / 443 = 0.0% Jun 21 · 0 / 382 = 0.0% Jun 22 · 0 / 576 = 0.0% Jun 23 · 1 / 900 = 0.1% Jun 24 · 0 / 737 = 0.0% Jun 25 · 0 / 618 = 0.0% Jun 26 · 0 / 534 = 0.0% Jun 27 · 0 / 431 = 0.0% Jun 28 · 0 / 382 = 0.0% Jun 29 · 0 / 502 = 0.0% Jun 30 · 0 / 801 = 0.0% Jul 1 · 1 / 795 = 0.1% Jul 2 · 0 / 604 = 0.0% Jul 3 · 1 / 499 = 0.2% Jul 4 · 0 / 411 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 0 / 551 = 0.0% Jul 7 · 0 / 1179 = 0.0% Jul 8 · 19 / 12587 = 0.2% Jul 9 · 26 / 23770 = 0.1% Jul 10 · 26 / 22591 = 0.1% Jul 11 · 3 / 16063 = 0.0% Jul 12 · 95 / 20356 = 0.5% Jul 13 · 82 / 20982 = 0.4% Jul 14 · 61 / 20473 = 0.3% Jul 15 · 41 / 17319 = 0.2% Jul 16 · 40 / 14324 = 0.3% Jul 17 · 55 / 19797 = 0.3% Jul 18 · 59 / 22785 = 0.3% Jul 19 · 53 / 26281 = 0.2% Jul 20 · 58 / 22655 = 0.3% Jul 21 · 93 / 21686 = 0.4% Jul 22 · 109 / 23242 = 0.5% Jul 23 · 45 / 16896 = 0.3% Jul 24 · 43 / 12865 = 0.3% Jul 25 · 30 / 8965 = 0.3% Jul 26 · 68 / 20032 = 0.3% Jul 27 · 123 / 33955 = 0.4% Jul 28 · 71 / 38363 = 0.2% Jul 29 · 59 / 50314 = 0.1% Jul 30 · 48 / 44093 = 0.1% Jul 31 · 80 / 51292 = 0.2% Aug 1 · 70 / 50687 = 0.1% Aug 2 · 74 / 49888 = 0.1% Aug 3 · 98 / 48423 = 0.2% Aug 4 · 76 / 37458 = 0.2% Aug 5 · 287 / 32795 = 0.9% Aug 6 · 291 / 36686 = 0.8% Aug 7 · 333 / 37968 = 0.9% Aug 8 · 463 / 39786 = 1.2% Aug 9 · 271 / 34349 = 0.8% Aug 10 · 198 / 29035 = 0.7% Aug 11 · 161 / 32211 = 0.5% Aug 12 · 196 / 33701 = 0.6% Aug 13 · 260 / 50215 = 0.5% Aug 14 · 245 / 51674 = 0.5% Aug 15 · 270 / 51767 = 0.5% Aug 16 · 272 / 52052 = 0.5% Aug 17 · 164 / 41735 = 0.4% Aug 18 · 246 / 54183 = 0.5% Aug 19 · 257 / 49706 = 0.5% Aug 20 · 367 / 67221 = 0.5% Aug 21 · 477 / 90903 = 0.5% Aug 22 · 555 / 91905 = 0.6% Aug 23 · 629 / 90718 = 0.7% Aug 24 · 458 / 79454 = 0.6% Aug 25 · 359 / 69812 = 0.5% Aug 26 · 330 / 65600 = 0.5% Aug 27 · 508 / 84138 = 0.6% Aug 28 · 554 / 83982 = 0.7% Aug 29 · 524 / 84892 = 0.6% Aug 30 · 605 / 93374 = 0.6% Aug 31 · 547 / 91122 = 0.6% Sep 1 · 586 / 92658 = 0.6% Sep 2 · 616 / 98887 = 0.6% Sep 3 · 590 / 93891 = 0.6% Sep 4 · 633 / 89580 = 0.7% Sep 5 · 618 / 93572 = 0.7% Sep 6 · 526 / 82326 = 0.6% Sep 7 · 424 / 79151 = 0.5% Sep 8 · 430 / 72318 = 0.6% Sep 9 · 355 / 68744 = 0.5% Sep 10 · 404 / 72443 = 0.6% Sep 11 · 443 / 77869 = 0.6% Sep 12 · 306 / 51322 = 0.6% Sep 13 · 290 / 53600 = 0.5% Sep 14 · 237 / 53618 = 0.4% Sep 15 · 227 / 52973 = 0.4% Sep 16 · 281 / 53264 = 0.5%
Mar 30, 2026 90 days Sep 16, 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 Google Workspace 6.26% 22.12%
#2 ▲1 Hostinger Email 6.00% 21.19%
#3 ▲1 IONOS Email 1.83% 6.45%
#4 ▼1 Zoho Mail 1.72% 6.08%
#5 – Microsoft 365 1.01% 3.57%
…
#13 ▲6 OpenSRS Hosted Email Current page 0.51% 1.80%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Email Hosting tool.Among August launches it ranked #12 in Email Hosting, up from #18 in July. All 3766 in Email Hosting →

Often used with

Tool Sites
HostedEmail 18,637
HSTS 16,346
Cloudflare 15,086
Google Domains DNS 14,334
Vite 14,255

Tools most often detected on the same sites as OpenSRS Hosted Email.

Recent launches we can show

288 of the 18,642 sites using OpenSRS Hosted Email are product launches we list individually. The other 18,354 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

Arcis | From insights to impact Sep 16, 2026 jukestr — run the game night they talk about all week Sep 16, 2026 Games Screenshot of Wasteclock for Slack, a launch using OpenSRS Hosted Email Wasteclock for Slack Sep 16, 2026 · score 1.5 Senior Circle | Family Care Coordination Sep 16, 2026 Health throttleQ™ TO/GA Throttle Assembly | SVK Aero Sep 15, 2026 Content Factory AI | Turn one video into original content Sep 14, 2026 Content Portfolio Club Sep 13, 2026 Finance Discq — Music database and marketplace Sep 13, 2026 Plectra Earth Technologies Sep 12, 2026 AgenticSMO Sep 12, 2026 Marketing Untitled site Sep 12, 2026 Proof · Prove it happened Sep 12, 2026

Showing the most recent 12 of 288.

The StackScope API serves all 18,642 sites using OpenSRS Hosted Email, filterable and exportable, from £15 a month.

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