Websites Powered by OpenSSL
426,192 websites tracked using OpenSSL (Web server extensions) · openssl.org
OpenSSL is a web-server extension or module. Its official site is openssl.org. PoweredBy tracks the websites that use OpenSSL across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the web server extensions ecosystem.
Usage trend
50K
100K
150K
200K
Apr 2018
Jun 2020
Jul 2022
Sep 2024
Oct 2026
Domains observed using OpenSSL in each month's HTTP Archive crawl,
Apr 2018 to Oct 2026 · peak 187,590 in Nov 2022. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.7 s
INP 75 ms
CLS 0
TTFB 700 ms
Median site among 133,855 OpenSSL sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
28,919
Japan
22,279
India
16,626
Brazil
12,544
Germany
11,646
Italy
11,443
South Korea
11,314
United Kingdom
11,177
Sites using OpenSSL by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Government | 1.90% | 178 |
| Education | 1.00% | 628 |
| Beauty and wellness | 0.97% | 300 |
| Arts and entertainment | 0.60% | 308 |
| News and media | 0.42% | 206 |
| Sports and fitness | 0.39% | 84 |
| Software and apps | 0.38% | 615 |
| Automotive | 0.38% | 319 |
| Finance and insurance | 0.36% | 74 |
| Travel and hospitality | 0.35% | 297 |
| Healthcare | 0.29% | 366 |
| Blogs and publishing | 0.29% | 83 |
Share of each industry's websites with a detected stack that use OpenSSL; industries come from what sites declare in their own structured data.
Top sites by authority
9+
9% · 34 of 372 sites
8+
10% · 733 of 7,677 sites
7+
5% · 2,357 of 45,712 sites
6+
4% · 3,971 of 110,136 sites
5+
3% · 6,181 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running OpenSSL in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using OpenSSL
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 4601 | karelia.fi | 5.59/10 | 160 | 56 | Mar 2018 |
| 4602 | friesland.de | 5.59/10 | 1 | 17 | Apr 2020 |
| 4603 | provincia.le.it | 5.59/10 | 150 | 221 | Sep 2021 |
| 4604 | aytobadajoz.es | 5.59/10 | 11 | 114 | Mar 2022 |
| 4605 | kdu.ac.jp | 5.59/10 | 5 | 1 | May 2026 |
| 4606 | town.watari.miyagi.jp | 5.59/10 | 4 | 1 | Apr 2022 |
| 4607 | higashikawa-town.jp | 5.59/10 | 1 | 2 | Oct 2025 |
| 4608 | mvdirona.com | 5.58/10 | 2,700 | 1,543 | Aug 2018 |
| 4609 | wingware.com | 5.58/10 | 150 | 124 | Dec 2020 |
| 4610 | rgub.ru | 5.58/10 | 2 | 8 | Feb 2025 |
| 4611 | shtrih-m.ru | 5.58/10 | - | - | Aug 2018 |
| 4612 | vordingborg.dk | 5.58/10 | 4 | 44 | Sep 2023 |
| 4613 | tabippo.net | 5.58/10 | - | 3 | Feb 2022 |
| 4614 | hospitaloswaldocruz.org.br | 5.58/10 | 330 | 395 | Feb 2019 |
| 4615 | internet4classrooms.com | 5.58/10 | 1,100 | 2,035 | Jan 2016 |
| 4616 | batut.org.rs | 5.58/10 | 3 | 5 | Sep 2021 |
| 4617 | succow-stiftung.de | 5.58/10 | 7 | 25 | Aug 2020 |
| 4618 | innervision.co.jp | 5.58/10 | 17 | 129 | Sep 2020 |
| 4619 | jef.or.jp | 5.58/10 | 270 | 681 | Jul 2022 |
| 4620 | zamosc.pl | 5.58/10 | 16 | 2 | Mar 2020 |
| 4621 | snowmobile.se | 5.58/10 | 6 | 156 | Aug 2018 |
| 4622 | town.ashoro.hokkaido.jp | 5.58/10 | 6 | 10 | Mar 2021 |
| 4623 | town.marumori.miyagi.jp | 5.58/10 | 2 | 1 | Mar 2022 |
| 4624 | unanleon.edu.ni | 5.58/10 | 260 | 339 | Apr 2019 |
| 4625 | iijlab.net | 5.57/10 | 23 | 30 | Dec 2020 |
| 4626 | koddos.net | 5.57/10 | 74 | 44 | Aug 2018 |
| 4627 | chinajoy.net | 5.57/10 | - | 1 | Aug 2026 |
| 4628 | matrixfitness.com | 5.57/10 | 16 | 19 | Mar 2025 |
| 4629 | moepp.gov.mk | 5.57/10 | - | 2 | Jul 2023 |
| 4630 | seb.lv | 5.57/10 | 160 | 218 | Aug 2026 |
| 4631 | trauksmescelejs.lv | 5.57/10 | - | - | Jul 2019 |
| 4632 | eenet.ee | 5.57/10 | 4 | 4 | Mar 2020 |
| 4633 | sanluis.gov.ar | 5.57/10 | 29 | 108 | Apr 2020 |
| 4634 | cambio.be | 5.57/10 | 22 | 62 | Nov 2022 |
| 4635 | spu.ac.th | 5.57/10 | 52 | 42 | Nov 2017 |
| 4636 | nfz-warszawa.pl | 5.57/10 | 54 | 51 | Feb 2024 |
| 4637 | ulsan.ac.kr | 5.57/10 | - | - | Jul 2022 |
| 4638 | ego-gw.it | 5.57/10 | 6 | 32 | Jun 2020 |
| 4639 | city.tsukumi.oita.jp | 5.57/10 | - | - | Aug 2023 |
| 4640 | san-ei-corp.co.jp | 5.57/10 | - | 2 | Mar 2021 |
| 4641 | igakuken.or.jp | 5.57/10 | 8 | 32 | Aug 2022 |
| 4642 | rushpaincenter.com | 5.57/10 | 670 | 340 | Dec 2020 |
| 4643 | penthouse.com | 5.56/10 | 230 | 180 | Jan 2021 |
| 4644 | juit.ac.in | 5.56/10 | 280 | 171 | Jan 2016 |
| 4645 | fleetscience.org | 5.56/10 | 39,000 | 11,188 | May 2023 |
| 4646 | ashland.com | 5.56/10 | 48,200 | 3,395 | Mar 2022 |
| 4647 | mocataipei.org.tw | 5.56/10 | 390 | 53 | Apr 2024 |
| 4648 | northernminer.com | 5.56/10 | 6,200 | 4,812 | Aug 2016 |
| 4649 | knuba.edu.ua | 5.56/10 | 10 | 17 | Dec 2020 |
| 4650 | maringa.pr.gov.br | 5.56/10 | 66 | 37 | Mar 2025 |
| 4651 | ballerup.dk | 5.56/10 | 28 | 35 | Oct 2026 |
| 4652 | deusto-publicaciones.es | 5.56/10 | 5 | 44 | May 2019 |
| 4653 | oep.org.bo | 5.56/10 | 310 | 374 | Nov 2017 |
| 4654 | zosprp.pl | 5.56/10 | 17 | 14 | Aug 2022 |
| 4655 | gccaz.edu | 5.56/10 | 31,500 | 7,162 | Aug 2018 |
| 4656 | tnu.edu.vn | 5.56/10 | 3 | 5 | Jul 2019 |
| 4657 | housetec.co.jp | 5.56/10 | - | - | Jun 2026 |
| 4658 | uniatlantico.edu.co | 5.56/10 | 430 | 813 | Aug 2017 |
| 4659 | enetcom.co.jp | 5.56/10 | - | 2 | Sep 2019 |
| 4660 | wielkopolskie.pl | 5.56/10 | - | - | Nov 2024 |
| 4661 | joho-fukuoka.or.jp | 5.56/10 | - | - | Oct 2022 |
| 4662 | mersin.edu.tr | 5.56/10 | 40 | 111 | Jan 2016 |
| 4663 | tochigisc.jp | 5.56/10 | 16 | 26 | Jul 2021 |
| 4664 | shimane-misato.lg.jp | 5.56/10 | - | - | Oct 2019 |
| 4665 | ssk21.co.jp | 5.56/10 | - | - | Jun 2022 |
| 4666 | incl.ne.jp | 5.56/10 | - | - | Jan 2019 |
| 4667 | ustjogja.ac.id | 5.56/10 | 47 | 2 | Aug 2022 |
| 4668 | gccbjs.com.au | 5.56/10 | 1 | 9 | Aug 2022 |
| 4669 | drshillington.com.au | 5.56/10 | 1 | 13 | Mar 2023 |
| 4670 | newcastlekneeclinic.com.au | 5.56/10 | 41 | 101 | Feb 2025 |
| 4671 | leadertask.ru | 5.55/10 | - | 8 | Feb 2020 |
| 4672 | findu.com | 5.55/10 | 200 | 372 | Jul 2020 |
| 4673 | sfb.gov.tw | 5.55/10 | 5 | 40 | Oct 2024 |
| 4674 | petrsu.ru | 5.55/10 | 14 | 18 | Jun 2021 |
| 4675 | dgliteracy.org | 5.55/10 | 52,100 | 169 | Nov 2019 |
| 4676 | situbondokab.go.id | 5.55/10 | - | 2 | May 2020 |
| 4677 | csi.it | 5.55/10 | - | - | Aug 2022 |
| 4678 | interrisk.pl | 5.55/10 | 5 | 26 | Nov 2025 |
| 4679 | beun.edu.tr | 5.55/10 | - | - | Aug 2018 |
| 4680 | culturarecreacionydeporte.gov.co | 5.55/10 | 5,000 | 3,733 | Jan 2016 |
| 4681 | sunnyskyz.com | 5.55/10 | 2,600 | 4,987 | Sep 2017 |
| 4682 | kedah.gov.my | 5.55/10 | 65 | 9 | Jun 2020 |
| 4683 | yuengling.com | 5.55/10 | 115,200 | 14,856 | May 2022 |
| 4684 | unsa.org | 5.55/10 | 54 | 177 | Nov 2019 |
| 4685 | usc.edu.tw | 5.55/10 | 1 | 11 | Aug 2018 |
| 4686 | jun.co.jp | 5.55/10 | 220 | 52 | Sep 2018 |
| 4687 | grudziadz.pl | 5.55/10 | 3 | 32 | Aug 2023 |
| 4688 | jsass.or.jp | 5.55/10 | 1 | 7 | Mar 2024 |
| 4689 | chugaiigaku.jp | 5.55/10 | 2 | 4 | Jul 2026 |
| 4690 | hanazono.ac.jp | 5.55/10 | - | 3 | Sep 2022 |
| 4691 | tocoo.jp | 5.55/10 | - | 14 | Jan 2016 |
| 4692 | ipdn.ac.id | 5.55/10 | - | - | Sep 2020 |
| 4693 | asojuku.ac.jp | 5.55/10 | 3 | 5 | Aug 2023 |
| 4694 | opentracker.net | 5.54/10 | 14,300 | 2,142 | Jan 2022 |
| 4695 | uom.lk | 5.54/10 | 1,500 | 675 | May 2020 |
| 4696 | niu.com | 5.54/10 | 1,000 | 125 | Jun 2025 |
| 4697 | gachon.ac.kr | 5.54/10 | 300 | 73 | Jan 2019 |
| 4698 | korean.net | 5.54/10 | 33 | 11 | Sep 2022 |
| 4699 | termis.org | 5.54/10 | 230 | 75 | Aug 2026 |
| 4700 | sernanp.gob.pe | 5.54/10 | - | - | Aug 2018 |
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).