Sites using Krystal Email 
Business email hosting bundled with Krystal hosting plans (UK).
Get told when a new site ships with Krystal Email.
Stackdar watches every launch we detect and sends you the ones using Krystal Email, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work1,081 sites
1,064 found by StackScope, 17 via launch platforms
- StackScope Wider Web 966
- StackScope Discovery (Indie) 98
- Product Hunt 11
- Hacker News 4
- PeerPush 2
Krystal Email has been detected on 1,081 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Creel — the fishing journal that learns your water, today.
It's most commonly paired with Google Search Console, HTTP/3, and Google Fonts. By product type, the launches using it are most often Health (19%), E-commerce (13%), and Education (12%).
What kind of products ship with Krystal Email
304 launches
Domain endings using Krystal Email
1,080 sites
- .uk 65.65%
- .com 22.87%
- .org 2.50%
- .app 1.30%
- .online 1.20%
- .io 0.93%
- .ai 0.83%
- .co 0.83%
- .net 0.74%
- .dev 0.37%
- .site 0.37%
- .xyz 0.37%
- .me 0.28%
- .ca 0.19%
Share of new sites using Krystal Email
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 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% |
| … | ||||
| #63 | ▼10 | Krystal Email Current page | 0.04% | 0.13% |
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 #65 in Email Hosting, down from #55 in July. All 3045 in Email Hosting →
Often used with
| Tool | Launches |
|---|---|
Google Search Console
|
12 |
| HTTP/3 | 11 |
Google Fonts
|
9 |
| Krystal DNS | 9 |
LiteSpeed Web Server
|
8 |
Tools most often detected on the same launches as Krystal Email.
Recent launches we can show
115 of the 1,081 sites using Krystal Email are product launches we list individually. The other 966 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
Obstruction | A daily sliding puzzle
Games
Help return lost phones safely — FoundPhones
Chta
Productivity
The global food business leaderboard - BiteBid
Record the Stories Behind Old Family Photos | VellumHold
Social
Modelattice - Model + Attice for governed delivery evidence
NI Teacher Jobs – Teaching Jobs in Northern Ireland
Solar Sizing Calculator - Free Solar and Off-Grid Sizing Tools
POWERPPV | Live Streaming & Pay-Per-View Platform
Content
RoboCopy GUI - Powerful File Copying Made Simple
V-Tune — Precision Strobe Tuner for Handpans
Showing the most recent 12 of 115.
The StackScope API serves all 1,081 sites using Krystal Email, filterable and exportable, from £15 a month.