Cross-platform web server for ASP.NET Core.
Get told when a new site ships with Kestrel.
Stackdar watches every launch we detect and sends you the ones using Kestrel, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work864 sites
808 found by StackScope, 56 via launch platforms
- StackScope Wider Web 576
- StackScope Discovery (Indie) 232
- Product Hunt 45
- Hacker News 4
- PeerPush 4
- Other 3
Kestrel has been detected on 864 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: lnkys - lnkys, today.
It's most commonly paired with Google Search Console, HSTS, and ASP.NET. By product type, the launches using it are most often Developer Tools (18%), Productivity (13%), and Health (11%). By domain ending, launches using it are 2.1 times as likely as the average launch to live on a .net domain. The 55 scored launches using Kestrel average a StackScope score of 6.5 out of 10, against 6.4 across all launches we score.
What kind of products ship with Kestrel
269 launches
Domain endings using Kestrel
860 sites
- .com 49.07%
- .app 8.84%
- .online 4.65%
- .net 3.84%
- .uk 3.60%
- .io 3.14%
- .ai 2.91%
- .org 2.44%
- .dev 2.33%
- .in 1.98%
- .co 1.74%
- .tech 1.63%
- .site 1.51%
- .xyz 1.51%
- .me 1.28%
Share of new sites using Kestrel
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.
Server leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲1 |
|
9.81% | 33.47% |
| #2 | ▼1 |
|
9.01% | 30.72% |
| #3 | – |
|
7.54% | 25.71% |
| #4 | – |
|
4.03% | 13.76% |
| #5 | – |
|
2.43% | 8.30% |
| … | ||||
| #15 | ▼1 |
|
0.03% | 0.12% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Server tool. All 108 in Server →
Recent launches we can show
288 of the 864 sites using Kestrel are product launches we list individually. The other 576 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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
Showing the most recent 12 of 288.
The StackScope API serves all 864 sites using Kestrel, filterable and exportable, from £15 a month.