Websites Powered by Kestrel

37,011 websites tracked using Kestrel (Web servers) · docs.microsoft.com

Kestrel is a web server that delivers the site's pages. Its official site is docs.microsoft.com. PoweredBy tracks the websites that use Kestrel across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the web servers ecosystem.

Usage trend

Domains observed using Kestrel in each month's HTTP Archive crawl, May 2019 to Oct 2026 · peak 13,127 in Oct 2026. The tracked total above also counts sites not re-crawled recently.

Core Web Vitals

LCP 1.7 s INP 75 ms CLS 0 TTFB 600 ms

Median site among 18,106 Kestrel sites with Chrome UX data, p75 values, Sep 2026.

Top countries

United States 7,567
United Kingdom 3,355
India 2,966
Germany 2,498
Brazil 2,478
Canada 2,287
France 1,989
Netherlands 1,967

Sites using Kestrel by audience country, Chrome UX Report.

Usage by industry

IndustryShareWebsites
Automotive 1.78% 1,490
Arts and entertainment 0.50% 257
Government 0.35% 33
Finance and insurance 0.21% 43
Education 0.15% 93
Software and apps 0.13% 213
Non-profit and religious 0.11% 11
Games 0.08% 6
Travel and hospitality 0.07% 64
Sports and fitness 0.07% 15
News and media 0.07% 32
Beauty and wellness 0.05% 16

Share of each industry's websites with a detected stack that use Kestrel; industries come from what sites declare in their own structured data.

Top sites by authority

9+ 5% · 18 of 372 sites
8+ 3% · 205 of 7,677 sites
7+ 1% · 646 of 45,712 sites
6+ <1% · 1,076 of 110,136 sites
5+ <1% · 1,570 of 246,751 sites

The share of the web's most authoritative domains, by Open Page Rank tier, seen running Kestrel in recent crawls. Only 372 domains worldwide score 9 or higher.

Websites using Kestrel

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
101 radio-canada.ca 8.53/10 44 183 May 2019
102 morningstar.com 8.52/10 3,059,300 538,025 Sep 2026
103 iucn.org 8.52/10 56,700 20,244 Jul 2024
104 paloaltonetworks.com 8.50/10 143,200 36,610 Oct 2024
105 iom.int 8.50/10 59,900 29,608 Jun 2022
106 au.dk 8.50/10 500 473 May 2019
107 asm.org 8.50/10 123,600 24,833 Aug 2026
108 fastly.net 8.49/10 - - Sep 2026
109 ok.gov 8.49/10 19,600 6,776 May 2019
110 uc.edu 8.49/10 420,100 75,319 Mar 2025
111 panasonic.com 8.48/10 42,700 27,959 Feb 2024
112 wv.gov 8.48/10 43,200 7,124 May 2023
113 ford.com 8.47/10 4,207,400 404,686 Mar 2026
114 osd.mil 8.46/10 - - Apr 2025
115 gov.si 8.46/10 6,300 3,751 Mar 2020
116 state.fl.us 8.46/10 - - Aug 2020
117 aad.org 8.45/10 1,068,800 199,733 Sep 2026
118 gov.hu 8.44/10 - - May 2025
119 kbb.com 8.43/10 13,217,400 1,184,359 Apr 2025
120 asic.gov.au 8.42/10 27,000 16,507 Aug 2026
121 bts.gov 8.40/10 262,300 25,744 Sep 2024
122 telerik.com 8.39/10 19,700 24,132 Apr 2024
123 britishmuseum.org 8.39/10 410,000 90,980 May 2025
124 state.co.us 8.37/10 - - Feb 2023
125 toronto.ca 8.37/10 187,100 72,925 Nov 2025
126 lodz.pl 8.37/10 90 193 May 2024
127 gov.sk 8.36/10 - - May 2019
128 dyndns.org 8.36/10 - - Mar 2021
129 st-andrews.ac.uk 8.36/10 48,900 16,687 Oct 2026
130 imo.org 8.34/10 46,400 17,669 Jul 2025
131 caixa.gov.br 8.32/10 42,900 8,619 Jan 2021
132 abb.com 8.31/10 14,000 15,537 Apr 2020
133 uniroma1.it 8.31/10 5,100 3,214 Aug 2022
134 arm.com 8.29/10 171,800 8,174 Dec 2020
135 baylor.edu 8.29/10 93,700 12,314 Aug 2026
136 unilever.com 8.28/10 91,400 30,357 Jun 2021
137 careerbuilder.com 8.28/10 89,800 67,401 Sep 2020
138 kyushu-u.ac.jp 8.28/10 680 731 Mar 2025
139 com.ru 8.27/10 - - Aug 2026
140 blackrock.com 8.27/10 250,300 67,050 Aug 2024
141 overdrive.com 8.26/10 130,100 98,935 Oct 2023
142 allstate.com 8.25/10 2,889,800 135,815 Oct 2026
143 mercedes-benz.com 8.25/10 186,400 15,625 Aug 2022
144 toyota.com 8.25/10 6,010,700 283,955 Aug 2022
145 theiet.org 8.25/10 19,600 4,631 Aug 2022
146 dukeupress.edu 8.25/10 37,200 9,000 Aug 2024
147 furunavi.jp 8.25/10 16 46 Jan 2026
148 netapp.com 8.24/10 33,800 13,151 Aug 2023
149 loreal.com 8.24/10 77,200 16,572 Oct 2026
150 bayer.com 8.24/10 81,900 35,978 Jun 2024
151 croix-rouge.fr 8.24/10 830 769 May 2023
152 bp.com 8.24/10 1,607,700 39,699 Apr 2026
153 publico.pt 8.24/10 3,900 10,022 Dec 2020
154 aau.dk 8.24/10 210 165 Oct 2022
155 gda.pl 8.24/10 - - Dec 2025
156 jameda.de 8.23/10 88 708 Jul 2026
157 surrey.ac.uk 8.23/10 8,700 7,648 Oct 2026
158 tower.jp 8.23/10 1,100 3,322 Jan 2021
159 comcast.com 8.22/10 43 75 Aug 2024
160 afnor.org 8.22/10 180 251 Sep 2021
161 health.wa.gov.au 8.22/10 18,600 18,741 Oct 2026
162 trustwave.com 8.21/10 2,600 2,248 Dec 2024
163 bdc.ca 8.21/10 181,200 44,189 Dec 2023
164 uba.ar 8.21/10 670 586 May 2021
165 southampton.ac.uk 8.20/10 39,200 20,825 Dec 2025
166 lublin.pl 8.17/10 4 3 Jan 2025
167 veeam.com 8.16/10 23,200 17,141 Jul 2025
168 u-bordeaux.fr 8.14/10 810 529 Nov 2021
169 imd.org 8.13/10 72,300 30,194 Jul 2026
170 moodys.com 8.11/10 49,000 19,678 May 2026
171 pr.gov 8.11/10 6,100 2,445 Oct 2021
172 newschool.edu 8.11/10 61,500 35,182 Sep 2026
173 unina.it 8.10/10 2,800 1,842 Dec 2021
174 xfinity.com 8.09/10 8,333,700 382,807 May 2019
175 louisville.edu 8.08/10 226,900 65,481 May 2026
176 thetradedesk.com 8.07/10 15,700 2,707 Nov 2023
177 healthgrades.com 8.07/10 2,602,600 1,294,043 Sep 2026
178 lavoro.gov.it 8.07/10 220 536 Apr 2021
179 prefeitura.sp.gov.br 8.07/10 3,800 5,554 Dec 2022
180 itau.com.br 8.06/10 5,300 4,331 Dec 2021
181 ms.gov.pl 8.06/10 - - Apr 2025
182 uantwerpen.be 8.06/10 2,900 2,097 Nov 2022
183 powerschool.com 8.05/10 318,100 29,147 May 2023
184 mod.uk 8.05/10 - - Jul 2021
185 westernsydney.edu.au 8.05/10 21,600 20,869 Apr 2026
186 houstontx.gov 8.05/10 615,100 189,553 Jun 2023
187 uni-augsburg.de 8.05/10 930 889 Sep 2026
188 danfoss.com 8.04/10 36,100 13,302 Feb 2026
189 msmt.cz 8.04/10 - - Mar 2023
190 gov.md 8.03/10 2,100 76 Oct 2026
191 swarthmore.edu 8.03/10 29,600 10,823 Oct 2025
192 arbetsformedlingen.se 8.03/10 3,500 4,467 Sep 2021
193 nissanusa.com 8.02/10 2,493,100 144,182 May 2026
194 synopsys.com 8.02/10 45,200 12,406 Mar 2024
195 astrazeneca.com 8.02/10 27,500 17,341 May 2020
196 churchofjesuschrist.org 8.02/10 2,539,800 495,032 Feb 2020
197 co.ua 8.02/10 - - Aug 2026
198 bg.ac.rs 8.02/10 68 28 Sep 2021
199 westjr.co.jp 8.02/10 27,300 14,339 Jul 2026
200 subway.com 8.01/10 1,174,500 74,670 May 2022

Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.

Download top 10,000 as CSV (zip) →

Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).

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