WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
Disclaimer: The data used in this report is collected from the current VersionDB release (February 2026) containing a total of 12,727,168 domains. All statistics reflect this dataset and do not claim to represent all websites globally.
WordPress 5.1.21 Complementary Technologies
Technologies frequently found with WordPress 5.1.21.
Live WordPress 5.1.21 Sites
3.9k
Complementary Tech
494
Most Frequent Complementary Tech
Websites Using WordPress 5.1.21
An unordered, non-ranked list generated from observed technology data.
| Domain | Server Location | ASN | Crawl Date |
|---|---|---|---|
| rikhtik.com | 🇨🇦 Canada | OVH SAS | February 13, 2026 |
| alternativa33.ru | 🇷🇺 Russia | Beget LLC | February 13, 2026 |
| lkmf.se | 🇸🇪 Sweden | Loopia AB | February 13, 2026 |
| ouvrard-traiteur.fr | 🇫🇷 France | OVH SAS | February 13, 2026 |
| energetikamest.cz | 🇩🇪 Germany | dogado GmbH | February 13, 2026 |
| hoorayheroes.com | 🇺🇸 United States | Amazon.com, Inc. | February 13, 2026 |
| aucom.es | 🇪🇸 Spain | DinaHosting S.L. | February 13, 2026 |
| baseke.com | 🇺🇸 United States | IONOS SE | February 13, 2026 |
| amebleue.fr | 🇫🇷 France | OVH SAS | February 13, 2026 |
| volleyumbria.it | 🇮🇹 Italy | genesys informatica srl | February 13, 2026 |
| thejournalmag.org | 🇺🇸 United States | IONOS SE | February 13, 2026 |
| appleclub.pl | 🇵🇱 Poland | OVH SAS | February 13, 2026 |
| animalparadisehospital.com | 🇺🇸 United States | IONOS SE | February 13, 2026 |
| topiknollen.de | 🇩🇪 Germany | IONOS SE | February 13, 2026 |
| thaiinvestors.com | 🇹🇠Thailand | CS LOXINFO Public Company Limited. | February 13, 2026 |
| staubwolke-krefeld.de | 🇩🇪 Germany | OMCnet Internet Service GmbH | February 13, 2026 |
| comresp.com | 🇩🇪 Germany | Neue Medien Muennich GmbH | February 13, 2026 |
| abul.asso.fr | 🇫🇷 France | OVH SAS | February 13, 2026 |
| tomosoft.jp | 🇯🇵 Japan | SAKURA Internet Inc. | February 13, 2026 |
| atelier14plus1.com | 🇫🇷 France | OVH SAS | February 13, 2026 |
| weidehuehner.de | 🇩🇪 Germany | Neue Medien Muennich GmbH | February 13, 2026 |
| musicaid.fr | 🇫🇷 France | OVH SAS | February 13, 2026 |
| xn----jtbhbideuigr0e.xn--p1ai | 🇷🇺 Russia | Beget LLC | February 13, 2026 |
| arairlor.asso.fr | 🇫🇷 France | OVH SAS | February 13, 2026 |
| lgdpartnerstwoizerskie.pl | 🇵🇱 Poland | Nazwa.pl Sp.z.o.o. | February 13, 2026 |
| beauty-secret-cosmetic.de | 🇩🇪 Germany | IONOS SE | February 13, 2026 |
| montanhas.eco.br | 🇺🇸 United States | DigitalOcean, LLC | February 13, 2026 |
| portailsguyon.com | 🇫🇷 France | OVH SAS | February 13, 2026 |
| baikasblog.com | 🇫🇷 France | OVH SAS | February 13, 2026 |
| gallier-avocat.fr | 🇫🇷 France | OVH SAS | February 13, 2026 |
| lobanhcan.com | 🇺🇸 United States | IONOS SE | February 13, 2026 |
| sreteniefest.ru | 🇷🇺 Russia | Beget LLC | February 13, 2026 |
| rae-baumann-kollegen.de | 🇩🇪 Germany | IONOS SE | February 13, 2026 |
| miramareplatanias.com | 🇫🇷 France | OVH SAS | February 13, 2026 |
| gartenschnack.de | 🇩🇪 Germany | IONOS SE | February 13, 2026 |
| all-inproductions.co.uk | 🇩🇪 Germany | IONOS SE | February 13, 2026 |
| devitkauh.cz | 🇸🇰 Slovakia | WebSupport s.r.o. | February 13, 2026 |
| zhemchuzhinamorya.ru | 🇷🇺 Russia | JSC RTComm.RU | February 13, 2026 |
| uship-marseille-sud.fr | 🇫🇷 France | OVH SAS | February 13, 2026 |
| volksclassics.de | 🇩🇪 Germany | webgo GmbH | February 13, 2026 |
| studio-zok.com | 🇯🇵 Japan | GMO Internet Group, Inc. | February 13, 2026 |
| cmv-steck.de | 🇩🇪 Germany | IONOS SE | February 13, 2026 |
| harald-schwaiger.com | 🇩🇪 Germany | EVANZO e-commerce GmbH | February 13, 2026 |
| mineral-spirit.fr | 🇫🇷 France | OVH SAS | February 8, 2026 |
| konradi-galabau.de | 🇩🇪 Germany | Neue Medien Muennich GmbH | February 6, 2026 |
| aaradon.ch | 🇨🇠Switzerland | Infomaniak Network SA | February 6, 2026 |
| lacliquedarsene.fr | 🇫🇷 France | OVH SAS | February 6, 2026 |
| kammermusiktage.de | 🇩🇪 Germany | IONOS SE | February 6, 2026 |
| middleground-academy.de | 🇩🇪 Germany | Neue Medien Muennich GmbH | February 6, 2026 |
| balashiha.su | 🇷🇺 Russia | JSC Selectel | February 6, 2026 |
Find Your Customers By Their Technologies
12,727,168 domains across 3,651 technologies. Ready for lead generation, market research, and security analysis.
Buy Now — $199.95 USDTop WordPress 5.1.21 Identifiers
Who is using WordPress 5.1.21 and where.
Countries
Top 5 most detected countries for WordPress 5.1.21
ASNs
Top 5 most detected ASNs for WordPress 5.1.21
Languages
Top 5 most detected Languages for WordPress 5.1.21
TLDs
Top 5 most detected TLDs for WordPress 5.1.21
Most Frequent WordPress 5.1.21 Identifiers and Complementary Tech
Most frequently encountered identifiers for WordPress 5.1.21 and its complementary technologies.
| Technology | Sites |
|---|---|
| MySQL | 3,904 |
| PHP | 3,904 |
| jQuery | 3,735 |
| jQuery Migrate | 3,494 |
| Apache HTTP Server | 1,792 |
| Contact Form 7 | 1,583 |
| Yoast SEO | 1,043 |
| Bootstrap | 982 |
| Nginx | 961 |
| Slider Revolution | 642 |
| Modernizr | 583 |
| imagesLoaded | 533 |
| Lightbox | 530 |
| Google Analytics | 433 |
| FitVids.JS | 410 |
| wpBakery | 393 |
| OWL Carousel | 381 |
| Google Maps | 369 |
| YouTube | 357 |
| Magnific Popup | 319 |
| All in One SEO | 314 |
| prettyPhoto | 307 |
| reCAPTCHA | 291 |
| Gravatar | 284 |
| WordPress Block Editor | 273 |
| All in One SEO Pack | 267 |
| Underscore.js | 255 |
| Akismet | 246 |
| WooCommerce | 238 |
| Slick | 230 |
| NextGEN Gallery | 229 |
| parallax.js | 225 |
| HTTP/3 | 214 |
| Google Hosted Libraries | 204 |
| Cloudflare | 196 |
| HSTS | 187 |
| Cookie Notice | 183 |
| Swiper | 168 |
| Ubuntu | 167 |
| Jetpack | 164 |
| Infinite Scroll | 162 |
| jQuery UI | 159 |
| Divi | 150 |
| WPML | 147 |
| OpenResty | 137 |
| CookieYes | 128 |
| Google Tag Manager | 119 |
| WOW | 111 |
| Easy Pie Chart | 111 |
| bxSlider | 108 |
| Language | Sites |
|---|---|
| French | 1,020 |
| English | 963 |
| German | 688 |
| Russian | 292 |
| Spanish | 253 |
| Latin | 249 |
| Polish | 166 |
| Italian | 136 |
| Czech | 115 |
| Dutch | 114 |
| Japanese | 92 |
| Slovak | 79 |
| Catalan | 75 |
| Portuguese | 73 |
| Swedish | 67 |
| Afrikaans | 64 |
| Tagalog | 62 |
| Esperanto | 52 |
| Norwegian Nynorsk | 52 |
| Yoruba | 48 |
| Danish | 47 |
| Hungarian | 45 |
| Norwegian Bokmål | 42 |
| Welsh | 39 |
| Swahili | 34 |
| Chinese | 28 |
| Tswana | 27 |
| Romanian | 27 |
| Finnish | 24 |
| Basque | 24 |
| Indonesian | 23 |
| Korean | 23 |
| Tsonga | 19 |
| Turkish | 19 |
| Estonian | 18 |
| Malay | 17 |
| Southern Sotho | 17 |
| Bulgarian | 17 |
| Lithuanian | 17 |
| Shona | 16 |
| Xhosa | 14 |
| Croatian | 13 |
| Ukrainian | 13 |
| Bosnian | 13 |
| Albanian | 13 |
| Thai | 10 |
| Slovenian | 8 |
| Somali | 7 |
| Serbian | 7 |
| Vietnamese | 6 |
| ASN | Sites |
|---|---|
| OVH SAS | 1,028 |
| IONOS SE | 649 |
| Neue Medien Muennich GmbH | 171 |
| Beget LLC | 151 |
| Hetzner Online GmbH | 100 |
| Cloudflare, Inc. | 94 |
| WebSupport s.r.o. | 88 |
| Combell NV | 68 |
| DinaHosting S.L. | 63 |
| Infomaniak Network SA | 60 |
| DigitalOcean, LLC | 53 |
| Jsc timeweb | 45 |
| EVANZO e-commerce GmbH | 44 |
| Cyber_Folks S.A. | 38 |
| Amazon.com, Inc. | 37 |
| Scaleway S.a.s. | 37 |
| Loopia AB | 33 |
| Webglobe, s.r.o. | 31 |
| New Dream Network, LLC | 30 |
| dogado GmbH | 30 |
| LLC masterhost | 29 |
| Xserver Inc. | 26 |
| Liquid Web, L.L.C | 26 |
| Korea Telecom | 24 |
| Ntirety, Inc. | 24 |
| Akamai Connected Cloud | 21 |
| Nazwa.pl Sp.z.o.o. | 21 |
| GANDI SAS | 20 |
| JSC RTComm.RU | 19 |
| webgo GmbH | 17 |
| ARTERIA Networks Corporation | 16 |
| One.com A/S | 15 |
| Groupe LWS SARL | 15 |
| Celeste SAS | 15 |
| netcup GmbH | 14 |
| PRO-ZETA a.s. | 14 |
| GMO Internet Group, Inc. | 14 |
| Sentia Denmark A/S | 14 |
| SAKURA Internet Inc. | 13 |
| Tecnocratica Centro de Datos, S.L. | 12 |
| Tiger Technologies LLC | 12 |
| united-domains GmbH | 11 |
| Mittwald CM Service GmbH & Co. KG | 11 |
| Aruba S.p.A. | 11 |
| WEDOS Internet, a.s. | 10 |
| ICDSoft Ltd. | 10 |
| MasterDC s.r.o. | 10 |
| IQ PL Sp. z o.o. | 10 |
| Rackforest Zrt. | 9 |
| Totaalnet Internet Works B.V. | 8 |
| TLD | Sites |
|---|---|
| com | 1,229 |
| de | 519 |
| fr | 445 |
| ru | 233 |
| org | 134 |
| pl | 120 |
| cz | 94 |
| net | 81 |
| es | 74 |
| it | 71 |
| be | 69 |
| sk | 65 |
| eu | 63 |
| at | 56 |
| co.uk | 52 |
| ch | 44 |
| nl | 39 |
| hu | 38 |
| info | 36 |
| se | 30 |
| xn--p1ai | 18 |
| jp | 18 |
| dk | 17 |
| no | 16 |
| co.jp | 14 |
| ca | 13 |
| fi | 13 |
| com.ua | 12 |
| ro | 9 |
| com.br | 9 |
| com.pl | 9 |
| gr | 8 |
| su | 8 |
| com.ar | 7 |
| ee | 7 |
| asso.fr | 7 |
| org.uk | 7 |
| co.kr | 6 |
| com.au | 6 |
| us | 6 |
| co | 6 |
| biz | 6 |
| cat | 5 |
| tv | 5 |
| com.tr | 4 |
| pt | 4 |
| in | 4 |
| or.jp | 4 |
| lu | 4 |
| hr | 4 |
| Country | Sites |
|---|---|
| 🇫🇷 France | 1,099 |
| 🇩🇪 Germany | 1,002 |
| 🇺🇸 United States | 308 |
| 🇷🇺 Russia | 289 |
| 🇵🇱 Poland | 135 |
| 🇪🇸 Spain | 102 |
| 🇨🇿 Czech Republic | 98 |
| 🇸🇰 Slovakia | 95 |
| 🇯🇵 Japan | 88 |
| 🇳🇱 Netherlands | 68 |
| 🇨🇠Switzerland | 66 |
| 🇮🇹 Italy | 57 |
| 🇸🇪 Sweden | 40 |
| 🇬🇧 United Kingdom | 38 |
| ðŸ‡ðŸ‡º Hungary | 32 |
| 🇦🇹 Austria | 30 |
| 🇰🇷 South Korea | 25 |
| 🇧🇪 Belgium | 23 |
| 🇩🇰 Denmark | 19 |
| 🇳🇴 Norway | 17 |
| 🇫🇮 Finland | 16 |
| 🇨🇦 Canada | 15 |
| 🇹🇠Thailand | 13 |
| 🇪🇪 Estonia | 12 |
| 🇺🇦 Ukraine | 10 |
| 🇸🇬 Singapore | 10 |
| 🇹🇷 Turkey | 9 |
| 🇧🇷 Brazil | 8 |
| 🇦🇺 Australia | 8 |
| 🇷🇴 Romania | 7 |
| 🇦🇷 Argentina | 7 |
| 🇧🇬 Bulgaria | 6 |
| 🇨🇳 China | 4 |
| 🇮🇷 Iran | 4 |
| 🇮🇪 Ireland | 4 |
| 🇮🇳 India | 4 |
| ðŸ‡ðŸ‡· Croatia | 4 |
| 🇻🇳 Vietnam | 4 |
| ðŸ‡ðŸ‡° Hong Kong | 4 |
| 🇱🇻 Latvia | 3 |
| 🇳🇿 New Zealand | 3 |
| 🇨🇱 Chile | 2 |
| 🇸🇮 Slovenia | 2 |
| 🇹🇼 Taiwan | 2 |
| 🇧🇾 Belarus | 2 |
| 🇱🇹 Lithuania | 2 |
| 🇵🇦 Panama | 1 |
| 🇰🇬 Kyrgyzstan | 1 |
| 🇵🇠Philippines | 1 |
| 🇱🇺 Luxembourg | 1 |
| 🇬🇷 Greece | 1 |
| 🇮🇸 Iceland | 1 |
| 🇦🇪 United Arab Emirates | 1 |
| 🇲🇽 Mexico | 1 |
| 🇰🇿 Kazakhstan | 1 |
| 🇮🇩 Indonesia | 1 |
| 🇩🇿 Algeria | 1 |
| 🇷🇸 Serbia | 1 |
| 🇲🇩 Moldova | 1 |
| 🇲🇰 North Macedonia | 1 |