Websites Powered by OpenSSL
426,272 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
May 2020
Jul 2022
Aug 2024
Sep 2026
Domains observed using OpenSSL in each month's HTTP Archive crawl,
Apr 2018 to Sep 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 | 1.80% | 145 |
| Beauty and wellness | 1.12% | 287 |
| Education | 1.10% | 549 |
| Arts and entertainment | 0.62% | 257 |
| Software and apps | 0.47% | 540 |
| News and media | 0.44% | 184 |
| Automotive | 0.38% | 266 |
| Finance and insurance | 0.34% | 57 |
| Travel and hospitality | 0.30% | 226 |
| Blogs and publishing | 0.29% | 72 |
| Healthcare | 0.29% | 309 |
| Retail | 0.28% | 850 |
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% · 732 of 7,677 sites
7+
5% · 2,349 of 45,712 sites
6+
4% · 3,989 of 110,136 sites
5+
3% · 6,246 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 |
|---|---|---|---|---|---|
| 3001 | regione.taa.it | 6.62/10 | 20 | 64 | Feb 2026 |
| 3002 | ihu.gr | 6.62/10 | 940 | 131 | Dec 2021 |
| 3003 | ucv.edu.pe | 6.62/10 | 460 | 663 | Sep 2020 |
| 3004 | uohyd.ac.in | 6.62/10 | 1,100 | 1,244 | Apr 2023 |
| 3005 | cycladic.gr | 6.62/10 | 1,500 | 543 | Oct 2023 |
| 3006 | unilibre.edu.co | 6.62/10 | 210 | 627 | Aug 2018 |
| 3007 | nippon1.jp | 6.62/10 | 14 | 41 | May 2017 |
| 3008 | amu.ac.in | 6.62/10 | 1,800 | 1,228 | Dec 2020 |
| 3009 | upsi.edu.my | 6.62/10 | 12 | 42 | Aug 2018 |
| 3010 | niad.ac.jp | 6.62/10 | 3 | 9 | Apr 2018 |
| 3011 | hiroshima-cu.ac.jp | 6.62/10 | 4 | 8 | Jul 2016 |
| 3012 | sanno.ac.jp | 6.62/10 | 3 | 11 | Aug 2018 |
| 3013 | iii.com | 6.61/10 | 11,300 | 381 | Aug 2018 |
| 3014 | dnews.co.kr | 6.61/10 | 5 | 20 | Mar 2021 |
| 3015 | fmcs.gov | 6.61/10 | 9,400 | 6,000 | May 2022 |
| 3016 | asobisystem.com | 6.61/10 | 1,600 | 368 | Apr 2023 |
| 3017 | nstc.gov.tw | 6.61/10 | 94 | 216 | Dec 2022 |
| 3018 | no-ip.info | 6.61/10 | - | - | Jan 2019 |
| 3019 | statoregioni.it | 6.61/10 | 2 | 27 | Apr 2025 |
| 3020 | tsn.at | 6.61/10 | 3 | 2 | Jun 2023 |
| 3021 | dts.edu | 6.61/10 | 15,200 | 5,857 | Sep 2023 |
| 3022 | tc.edu.tw | 6.61/10 | - | 2 | Jan 2018 |
| 3023 | dipucadiz.es | 6.61/10 | 58 | 35 | Jun 2016 |
| 3024 | icts.res.in | 6.61/10 | 490 | 934 | Sep 2022 |
| 3025 | mpil.de | 6.61/10 | 1,100 | 875 | Jan 2019 |
| 3026 | nsula.edu | 6.61/10 | 31,300 | 16,477 | Aug 2022 |
| 3027 | ucol.mx | 6.61/10 | 320 | 593 | Jul 2019 |
| 3028 | uthm.edu.my | 6.61/10 | 81 | 129 | Jan 2018 |
| 3029 | unasus.gov.br | 6.61/10 | 72 | 203 | Mar 2018 |
| 3030 | yodlee.com | 6.60/10 | 2,400 | 1,177 | Sep 2026 |
| 3031 | on1.com | 6.60/10 | 8,500 | 6,038 | Jul 2021 |
| 3032 | browardschools.com | 6.60/10 | 92,100 | 55,335 | Oct 2025 |
| 3033 | gov.sz | 6.60/10 | 1,100 | 318 | Oct 2025 |
| 3034 | imzo.gov.ua | 6.60/10 | - | - | Jul 2018 |
| 3035 | inha.ac.kr | 6.60/10 | 160 | 16 | Jan 2016 |
| 3036 | hankyu-hotel.com | 6.60/10 | 24,500 | 835 | Aug 2026 |
| 3037 | sabor.hr | 6.60/10 | 170 | 203 | Sep 2024 |
| 3038 | org.by | 6.60/10 | - | - | Jan 2019 |
| 3039 | osaka-sandai.ac.jp | 6.60/10 | 22 | 25 | Aug 2018 |
| 3040 | pccu.edu.tw | 6.60/10 | 230 | 18 | Aug 2018 |
| 3041 | itopvpn.com | 6.60/10 | 7,800 | 6,846 | Jul 2021 |
| 3042 | mar.mil.br | 6.60/10 | 2 | 9 | Aug 2018 |
| 3043 | buu.ac.th | 6.60/10 | 97 | 12 | Aug 2018 |
| 3044 | filmstaden.se | 6.60/10 | 1,700 | 1,274 | Apr 2019 |
| 3045 | mcdonalds.es | 6.60/10 | 640 | 2,105 | May 2020 |
| 3046 | subway.co.jp | 6.60/10 | 130 | 52 | Jul 2026 |
| 3047 | makotemplates.org | 6.59/10 | 920 | 16 | Jun 2016 |
| 3048 | aop.bg | 6.59/10 | 38 | 1 | Mar 2022 |
| 3049 | diebayerische.de | 6.59/10 | 34 | 115 | May 2017 |
| 3050 | swtor.com | 6.59/10 | 82,800 | 15,436 | Feb 2024 |
| 3051 | quotezone.co.uk | 6.59/10 | 550 | 934 | Jul 2021 |
| 3052 | tokyotokyo.jp | 6.59/10 | 6,500 | 387 | Jan 2019 |
| 3053 | vallhebron.com | 6.59/10 | 530 | 482 | Sep 2022 |
| 3054 | projectpro.io | 6.59/10 | 12,900 | 19,029 | Nov 2021 |
| 3055 | fing.edu.uy | 6.59/10 | 530 | 836 | May 2017 |
| 3056 | fooyoh.com | 6.59/10 | 77 | 263 | Jan 2021 |
| 3057 | ncnu.edu.tw | 6.59/10 | 46 | 36 | Aug 2018 |
| 3058 | ru.ac.th | 6.59/10 | 110 | 31 | Aug 2018 |
| 3059 | ndhu.edu.tw | 6.59/10 | 210 | 22 | Dec 2018 |
| 3060 | dexonline.ro | 6.59/10 | 11,700 | 4,424 | Aug 2018 |
| 3061 | hollins.edu | 6.59/10 | 7,600 | 4,820 | May 2020 |
| 3062 | newwestcity.ca | 6.59/10 | 3,200 | 4,314 | May 2017 |
| 3063 | odishatv.in | 6.59/10 | 3,200 | 6,915 | Aug 2018 |
| 3064 | verbraucherportal-bw.de | 6.59/10 | 1 | 6 | May 2019 |
| 3065 | nanao.lg.jp | 6.59/10 | - | - | Jul 2022 |
| 3066 | kobegakuin.ac.jp | 6.59/10 | 13 | 12 | Jan 2016 |
| 3067 | ucentral.cl | 6.59/10 | 180 | 365 | Feb 2019 |
| 3068 | selva-i.co.jp | 6.59/10 | - | 2 | Dec 2022 |
| 3069 | gwangju.ac.kr | 6.59/10 | 8 | 4 | Jun 2024 |
| 3070 | telushealth.com | 6.58/10 | 1,300 | 292 | Oct 2023 |
| 3071 | jinr.ru | 6.58/10 | 110 | 238 | May 2017 |
| 3072 | freseniusmedicalcare.com | 6.58/10 | 33,400 | 12,187 | Nov 2024 |
| 3073 | ocsc.go.th | 6.58/10 | 63 | 19 | Aug 2018 |
| 3074 | schulamt-bw.de | 6.58/10 | - | - | Dec 2022 |
| 3075 | freebsdfoundation.org | 6.58/10 | 2,000 | 483 | Feb 2021 |
| 3076 | rcsed.ac.uk | 6.58/10 | 920 | 715 | Aug 2022 |
| 3077 | granada.org | 6.58/10 | 200 | 1,170 | May 2023 |
| 3078 | altarum.org | 6.58/10 | 590 | 608 | Aug 2018 |
| 3079 | iaee.org | 6.58/10 | 1,200 | 384 | Mar 2026 |
| 3080 | skemman.is | 6.58/10 | 390 | 1,547 | Jul 2017 |
| 3081 | msfn.org | 6.58/10 | 3,500 | 7,588 | Jan 2016 |
| 3082 | dip-caceres.es | 6.58/10 | 91 | 81 | Jun 2016 |
| 3083 | senado.gov.co | 6.58/10 | 920 | 1,432 | Jan 2016 |
| 3084 | iiitd.edu.in | 6.58/10 | 9 | 96 | Jun 2018 |
| 3085 | rasc.ca | 6.58/10 | 990 | 452 | Dec 2020 |
| 3086 | saishunkan.co.jp | 6.58/10 | - | 2 | Sep 2020 |
| 3087 | ac.cd | 6.58/10 | - | - | May 2021 |
| 3088 | jihlava.cz | 6.58/10 | 58 | 65 | May 2023 |
| 3089 | mwed.jp | 6.58/10 | 2 | 44 | Jul 2026 |
| 3090 | pens.ac.id | 6.58/10 | 360 | 92 | May 2018 |
| 3091 | twcu.ac.jp | 6.58/10 | 11 | 12 | Mar 2021 |
| 3092 | nacr.cz | 6.58/10 | 4 | 26 | May 2019 |
| 3093 | meisei-u.ac.jp | 6.58/10 | 16 | 7 | Aug 2022 |
| 3094 | decn.co.jp | 6.58/10 | - | 9 | Apr 2022 |
| 3095 | kitami.lg.jp | 6.58/10 | - | - | Apr 2025 |
| 3096 | walsh.edu | 6.58/10 | 8,000 | 5,777 | Apr 2019 |
| 3097 | yaskawa.co.jp | 6.58/10 | 3 | 15 | Jan 2019 |
| 3098 | clickagy.com | 6.57/10 | 40 | 2 | Jul 2023 |
| 3099 | suda.edu.cn | 6.57/10 | 10 | 4 | Nov 2022 |
| 3100 | myfreetaxes.com | 6.57/10 | 58,500 | 3,014 | Dec 2021 |
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).