Websites Powered by mod_ssl
32,642 websites tracked using mod_ssl (Web server extensions) · modssl.org
mod_ssl is a web-server extension or module. Its official site is modssl.org. PoweredBy tracks the websites that use mod_ssl 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
10K
20K
30K
Apr 2018
May 2020
Jun 2022
Jul 2024
Aug 2026
Domains observed using mod_ssl in each month's HTTP Archive crawl,
Apr 2018 to Aug 2026 · peak 24,831 in May 2019. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.5 s
INP 50 ms
CLS 0
TTFB 700 ms
Median site among 9,381 mod_ssl sites with Chrome UX data, p75 values, Aug 2026.
Top countries
Japan
2,600
United States
2,033
South Korea
1,818
Germany
1,087
India
1,084
France
956
United Kingdom
924
Indonesia
884
Sites using mod_ssl by audience country, Chrome UX Report.
Top sites by authority
9+
<1% · 2 of 372 sites
8+
<1% · 41 of 7,677 sites
7+
<1% · 123 of 45,712 sites
6+
<1% · 195 of 110,136 sites
5+
<1% · 268 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running mod_ssl in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using mod_ssl
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | bbc.co.uk | 9.18/10 | 6,004,800 | 2,144,161 | Jun 2024 |
| 2 | mit.edu | 9.18/10 | 161,200 | 27,360 | Apr 2018 |
| 3 | gov.ru | 8.91/10 | 2,700 | 216 | Aug 2018 |
| 4 | nielsen.com | 8.75/10 | 89,300 | 35,566 | Aug 2018 |
| 5 | ucl.ac.uk | 8.74/10 | 154,800 | 93,062 | Aug 2018 |
| 6 | utah.edu | 8.74/10 | 474,600 | 10,598 | Aug 2018 |
| 7 | unibo.it | 8.68/10 | 11,100 | 4,872 | Aug 2018 |
| 8 | caltech.edu | 8.65/10 | 148,700 | 22,852 | Aug 2018 |
| 9 | unam.mx | 8.58/10 | 1,900 | 1,196 | Aug 2018 |
| 10 | cuni.cz | 8.56/10 | 4,400 | 1,637 | Aug 2018 |
| 11 | upm.es | 8.52/10 | 2,100 | 1,692 | Aug 2018 |
| 12 | ladepeche.fr | 8.46/10 | 11,300 | 26,359 | Jan 2019 |
| 13 | tohoku.ac.jp | 8.38/10 | 2,300 | 1,759 | Aug 2018 |
| 14 | index.hu | 8.37/10 | 9,800 | 5,526 | Jan 2019 |
| 15 | dyndns.org | 8.36/10 | - | - | Aug 2018 |
| 16 | fukuoka.lg.jp | 8.36/10 | - | - | Apr 2019 |
| 17 | ufmg.br | 8.36/10 | 3,300 | 1,765 | Aug 2018 |
| 18 | org.ru | 8.35/10 | - | - | Jan 2019 |
| 19 | com.ru | 8.27/10 | - | - | Jan 2019 |
| 20 | vector.co.jp | 8.25/10 | 110 | 403 | Aug 2018 |
| 21 | nagoya-u.ac.jp | 8.25/10 | 11 | 36 | Aug 2018 |
| 22 | ntu.edu.tw | 8.24/10 | 1,500 | 817 | Apr 2018 |
| 23 | uibk.ac.at | 8.24/10 | 7,200 | 4,770 | Dec 2024 |
| 24 | uj.edu.pl | 8.24/10 | 360 | 132 | Aug 2018 |
| 25 | usal.es | 8.22/10 | 3,200 | 1,130 | Aug 2018 |
| 26 | uc.pt | 8.21/10 | 3,500 | 1,118 | Aug 2018 |
| 27 | shu.edu | 8.16/10 | 63,100 | 35,652 | Dec 2025 |
| 28 | bfi.org.uk | 8.16/10 | 250,200 | 57,643 | Apr 2018 |
| 29 | unina.it | 8.10/10 | 2,800 | 1,842 | Aug 2018 |
| 30 | snu.ac.kr | 8.09/10 | 69 | 64 | Aug 2018 |
| 31 | uaf.edu | 8.05/10 | 149,500 | 49,693 | Aug 2018 |
| 32 | embrapa.br | 8.05/10 | 1,700 | 2,896 | Aug 2018 |
| 33 | bn.org.pl | 8.03/10 | 310 | 109 | Jan 2026 |
| 34 | msu.ru | 8.02/10 | 4,500 | 86 | Aug 2018 |
| 35 | bg.ac.rs | 8.02/10 | 68 | 28 | Aug 2018 |
| 36 | uc.cl | 8.02/10 | 2,800 | 2,417 | Aug 2018 |
| 37 | uminho.pt | 8.01/10 | 300 | 85 | Aug 2018 |
| 38 | ntua.gr | 8.01/10 | 1,000 | 53 | Aug 2018 |
| 39 | madrid.org | 8.00/10 | 720 | 4,953 | Aug 2022 |
| 40 | justice.fr | 8.00/10 | 410 | 977 | Jan 2021 |
| 41 | umk.pl | 8.00/10 | 240 | 151 | Aug 2018 |
| 42 | no-ip.org | 7.99/10 | - | - | Jan 2019 |
| 43 | chula.ac.th | 7.99/10 | 5,600 | 2,737 | Aug 2018 |
| 44 | ddns.net | 7.98/10 | - | - | Jan 2019 |
| 45 | tomsk.ru | 7.95/10 | 23 | 11 | Jan 2019 |
| 46 | pw.edu.pl | 7.90/10 | 95 | 170 | Aug 2018 |
| 47 | yamaguchi.lg.jp | 7.88/10 | - | - | Mar 2023 |
| 48 | dothome.co.kr | 7.87/10 | - | 1 | Apr 2021 |
| 49 | anglican.org | 7.87/10 | 1,700 | 100 | Apr 2018 |
| 50 | duckdns.org | 7.86/10 | 150 | 511 | Aug 2026 |
| 51 | unal.edu.co | 7.85/10 | 1,200 | 240 | Aug 2018 |
| 52 | bme.hu | 7.81/10 | 1,300 | 299 | Aug 2018 |
| 53 | karelia.ru | 7.74/10 | - | - | Jan 2019 |
| 54 | u-szeged.hu | 7.74/10 | 880 | 213 | Aug 2018 |
| 55 | cjb.net | 7.73/10 | - | - | Sep 2022 |
| 56 | hinet.net | 7.71/10 | 120 | 43 | Aug 2018 |
| 57 | regione.fvg.it | 7.71/10 | 490 | 1,254 | May 2024 |
| 58 | unipr.it | 7.69/10 | 870 | 954 | Jan 2019 |
| 59 | bas.bg | 7.68/10 | 450 | 52 | Sep 2020 |
| 60 | senac.br | 7.66/10 | 21 | 49 | Aug 2018 |
| 61 | kansai-u.ac.jp | 7.65/10 | 600 | 296 | May 2019 |
| 62 | tyc.edu.tw | 7.64/10 | - | 1 | Aug 2018 |
| 63 | politicheagricole.it | 7.53/10 | - | - | Aug 2018 |
| 64 | uniba.sk | 7.51/10 | 260 | 148 | Aug 2018 |
| 65 | ddo.jp | 7.50/10 | - | - | Aug 2018 |
| 66 | u-ryukyu.ac.jp | 7.49/10 | 29 | 43 | Aug 2018 |
| 67 | hacettepe.edu.tr | 7.47/10 | 390 | 72 | Aug 2018 |
| 68 | lunion.fr | 7.46/10 | 1,500 | 5,011 | Aug 2018 |
| 69 | stuba.sk | 7.45/10 | 320 | 181 | Aug 2018 |
| 70 | moh.gov.my | 7.45/10 | 4,000 | 8,959 | Aug 2018 |
| 71 | ukrstat.gov.ua | 7.45/10 | 10 | 42 | Jun 2022 |
| 72 | imss.gob.mx | 7.45/10 | 21,200 | 45,204 | Aug 2018 |
| 73 | yamaguchi-u.ac.jp | 7.44/10 | 91 | 66 | Aug 2018 |
| 74 | siue.edu | 7.43/10 | 123,800 | 41,581 | Mar 2021 |
| 75 | kmib.co.kr | 7.42/10 | 43 | 44 | May 2025 |
| 76 | mta.hu | 7.42/10 | 83 | 137 | May 2019 |
| 77 | korea.ac.kr | 7.39/10 | 160 | 108 | Aug 2018 |
| 78 | jamaica-gleaner.com | 7.39/10 | 31,500 | 30,452 | Jan 2020 |
| 79 | tu.ac.th | 7.38/10 | 1,500 | 101 | Jan 2019 |
| 80 | city.kyoto.jp | 7.37/10 | - | - | Aug 2022 |
| 81 | unicen.edu.ar | 7.35/10 | 23 | 184 | Aug 2018 |
| 82 | utn.edu.ar | 7.34/10 | 500 | 212 | Oct 2022 |
| 83 | tp.edu.tw | 7.34/10 | - | - | Aug 2018 |
| 84 | ac-dijon.fr | 7.33/10 | 82 | 93 | Aug 2018 |
| 85 | udelar.edu.uy | 7.32/10 | 240 | 197 | Aug 2018 |
| 86 | tku.edu.tw | 7.31/10 | - | 1 | Aug 2018 |
| 87 | tecnm.mx | 7.31/10 | 200 | 443 | May 2019 |
| 88 | pk.edu.pl | 7.31/10 | 66 | 18 | Aug 2018 |
| 89 | busan.go.kr | 7.30/10 | 10,900 | 1,130 | Jun 2023 |
| 90 | ac.ru | 7.26/10 | - | - | May 2022 |
| 91 | bib-bvb.de | 7.25/10 | 2 | 9 | Aug 2018 |
| 92 | kanagawa-u.ac.jp | 7.25/10 | 75 | 52 | Aug 2022 |
| 93 | airnav.com | 7.24/10 | 924,600 | 60,981 | Apr 2018 |
| 94 | p-world.co.jp | 7.21/10 | 20 | 43 | Mar 2023 |
| 95 | nsc.ru | 7.19/10 | 3 | 35 | Apr 2018 |
| 96 | ait.ac.th | 7.18/10 | 730 | 481 | Aug 2018 |
| 97 | sevilla.org | 7.17/10 | 1,300 | 2,701 | May 2018 |
| 98 | univ.kiev.ua | 7.10/10 | - | - | Aug 2018 |
| 99 | whitman.edu | 7.10/10 | 97,900 | 22,869 | Aug 2018 |
| 100 | chubu.ac.jp | 7.10/10 | 15 | 50 | Jul 2019 |
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) →