Technology report · Web server
Kestrel usage report
Kestrel, a web server, was found on 71 of the 66086 websites we scanned, with data dated 2026-10-28. That is a share of 0.1%. All 71 sites also run ASP.NET, and Google Tag Manager appears on 49.3% of them. Industry is known for only 12 sites, and no version information was detected.
- 71websites using it
- 0.1%of 66,086 scanned websites with a detected technology
- 2026-10-28data date
The companion technologies show a clear pattern. ASP.NET is present on 71 sites, which is 100.0%. Google Tag Manager follows with 35 sites at 49.3%. Google Analytics and jQuery each appear on 16 sites, 22.5%. Google Fonts is on 15 sites at 21.1%. The script hosts cdnjs and jsDelivr each appear on 11 sites, 15.5%, and Bootstrap on 8 sites, 11.3%.
The industry breakdown covers just 12 sites, since industry is unknown for the rest. Education, Food and restaurants, and Software and SaaS each account for 2 sites, or 16.7%. E-commerce and retail and Healthcare each have 1 site, or 8.3%. With so few classified sites, each site shifts the percentages noticeably, so treat the split as a rough indication.
Version data is absent here. The number of sites with a detected Kestrel version is 0, and the version list is empty. This page therefore cannot tell you which releases are in use. It is better suited to judging how often Kestrel appears, what it is paired with, and which sectors show up in the classified sample.
Industries using Kestrel
| Industry | Websites | Share of 12 classified |
|---|---|---|
| Education | 2 | 16.7% |
| Food and restaurants | 2 | 16.7% |
| Software and SaaS | 2 | 16.7% |
| E-commerce and retail | 1 | 8.3% |
| Healthcare | 1 | 8.3% |
Technologies used together with Kestrel
| Technology | Websites | Share of Kestrel sites |
|---|---|---|
| ASP.NET | 71 | 100% |
| Google Tag Manager | 35 | 49.3% |
| Google Analytics | 16 | 22.5% |
| jQuery | 16 | 22.5% |
| Google Fonts | 15 | 21.1% |
| cdnjs | 11 | 15.5% |
| jsDelivr | 11 | 15.5% |
| Bootstrap | 8 | 11.3% |
Example company websites
newtonsoft.com, scentsy.us, htv.vn, thingvellir.is, event-us.kr
FAQ
- How many websites use Kestrel?
- Kestrel was detected on 71 of the 66086 websites scanned, which is a share of 0.1%. The data is dated 2026-10-28 and the technology is categorized as a web server.
- What technologies are most often found alongside Kestrel?
- ASP.NET appears on all 71 sites. Google Tag Manager is next at 49.3%, then Google Analytics and jQuery at 22.5% each, Google Fonts at 21.1%, cdnjs and jsDelivr at 15.5% each, and Bootstrap at 11.3%.
- Which industries use Kestrel according to this data?
- Among the 12 sites with a known industry, Education, Food and restaurants, and Software and SaaS each have 2 sites at 16.7%. E-commerce and retail and Healthcare each have 1 site at 8.3%.
- Which Kestrel versions are in use?
- This scan does not say. The number of sites with a detected version is 0 and the version list is empty, so no release breakdown is available for Kestrel.
Check your own list
Run the same detection on the websites you care about, or browse popular sites in the Tech Stack Index.