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 4.9.21 Complementary Technologies
Technologies frequently found with WordPress 4.9.21.
Live WordPress 4.9.21 Sites
84
Complementary Tech
141
Most Frequent Complementary Tech
Websites Using WordPress 4.9.21
An unordered, non-ranked list generated from observed technology data.
| Domain | Server Location | ASN | Crawl Date |
|---|---|---|---|
| kosinvest.org | 🇩🇪 Germany | Amazon.com, Inc. | February 14, 2026 |
| seom-spice.org | 🇺🇸 United States | Amazon.com, Inc. | February 14, 2026 |
| rodolfobarra.com.ar | 🇦🇷 Argentina | NSS S.A. | February 14, 2026 |
| sevpsiholog.ru | 🇷🇺 Russia | Beget LLC | February 14, 2026 |
| lecasedibiana.it | 🇮🇹 Italy | Wind Tre S.p.A. | February 14, 2026 |
| dottor-dente.it | 🇺🇸 United States | Host Europe GmbH | February 14, 2026 |
| bloominglife.com.mx | 🇺🇸 United States | GoDaddy.com, LLC | February 14, 2026 |
| jminled.ru | 🇷🇺 Russia | Domain names registrar REG.RU, Ltd | February 13, 2026 |
| cqgrowing.cn | 🇺🇸 United States | PEG TECH INC | February 13, 2026 |
| butova-advokat.ru | 🇷🇺 Russia | EuroByte LLC | February 13, 2026 |
| liketomove.com | 🇫🇷 France | OVH SAS | February 13, 2026 |
| washingtonlasercenter.com | 🇺🇸 United States | IONOS SE | February 13, 2026 |
| mmk0.com | Unknown | Cloudflare, Inc. | February 13, 2026 |
| baopublishing.it | Unknown | Cloudflare, Inc. | February 13, 2026 |
| chelseaseo.co.uk | 🇬🇧 United Kingdom | OVH SAS | February 13, 2026 |
| funix.edu.vn | 🇸🇬 Singapore | Google LLC | February 13, 2026 |
| au-plovdiv.bg | 🇧🇬 Bulgaria | Bulgarian Research and Education Network Association (BREN) | February 13, 2026 |
| conveyorbeltschains.com | 🇸🇬 Singapore | GoDaddy.com, LLC | February 13, 2026 |
| cordare.eu | 🇵🇱 Poland | TELEKOM.pl Sp. z o.o. | February 8, 2026 |
| your-side.co.jp | 🇯🇵 Japan | Otsuka Corp. | February 8, 2026 |
| osteopathe-mouscron.com | 🇫🇷 France | OVH SAS | February 8, 2026 |
| stratosarchitekten.ch | 🇨🇠Switzerland | VTX Services SA | February 8, 2026 |
| studiolavia.it | 🇩🇪 Germany | Hetzner Online GmbH | February 8, 2026 |
| humbertomauro.net | 🇺🇸 United States | GoDaddy.com, LLC | February 8, 2026 |
| smartepfosten.de | 🇫🇷 France | Host Europe GmbH | February 7, 2026 |
| ledeclic.ch | 🇨🇠Switzerland | VTX Services SA | February 7, 2026 |
| aardvark.eu | 🇫🇷 France | Host Europe GmbH | February 7, 2026 |
| anneru.com | 🇺🇸 United States | GoDaddy.com, LLC | February 7, 2026 |
| betterbusinesscontent.com | Unknown | Cloudflare, Inc. | February 7, 2026 |
| saltonrice.com | 🇺🇸 United States | GoDaddy.com, LLC | February 7, 2026 |
| fundacjadobrychdzialan.org | 🇵🇱 Poland | home.pl sp. z o.o. | February 7, 2026 |
| hanminursingschool.com | 🇺🇸 United States | IONOS SE | February 7, 2026 |
| uc-walkin.com | 🇺🇸 United States | Hostwinds LLC. | February 7, 2026 |
| zsliu.net | 🇨🇳 China | CHINA UNICOM China169 Backbone | February 7, 2026 |
| lamprakopoulos.gr | Unknown | Cloudflare, Inc. | February 7, 2026 |
| pokojemielno.com | 🇵🇱 Poland | dhosting.pl Sp. z o.o. | February 7, 2026 |
| blueemberja.com | 🇺🇸 United States | Sucuri | February 7, 2026 |
| happinessmakessuccess.com | 🇺🇸 United States | GoDaddy.com, LLC | February 7, 2026 |
| norticles.com | 🇵🇱 Poland | OVH SAS | February 7, 2026 |
| thekickoffstore.com | Unknown | Cloudflare, Inc. | February 7, 2026 |
| vneco1.com.vn | 🇻🇳 Vietnam | VNPT Corp | February 7, 2026 |
| hiroshimajohoku.ed.jp | 🇯🇵 Japan | KDDI Web Communications Inc. | February 7, 2026 |
| hmsgangesqld.com | 🇦🇺 Australia | Hostopia Australia Web Pty Ltd | February 7, 2026 |
| rtas.org | 🇩🇪 Germany | Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. | February 7, 2026 |
| arturek.net | 🇵🇱 Poland | Nazwa.pl Sp.z.o.o. | February 7, 2026 |
| vanjoh.co.jp | 🇯🇵 Japan | SAKURA Internet Inc. | February 7, 2026 |
| mediator.co.jp | 🇺🇸 United States | Amazon.com, Inc. | February 7, 2026 |
| brasner.pl | 🇵🇱 Poland | Cyber_Folks S.A. | February 6, 2026 |
| tanjuyildirim.com | 🇹🇷 Turkey | HostLAB Bilisim Teknolojileri A.S. | February 6, 2026 |
| masseriapotenti.it | 🇮🇹 Italy | Aruba S.p.A. | 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 4.9.21 Identifiers
Who is using WordPress 4.9.21 and where.
Countries
Top 5 most detected countries for WordPress 4.9.21
ASNs
Top 5 most detected ASNs for WordPress 4.9.21
Languages
Top 5 most detected Languages for WordPress 4.9.21
TLDs
Top 5 most detected TLDs for WordPress 4.9.21
Most Frequent WordPress 4.9.21 Identifiers and Complementary Tech
Most frequently encountered identifiers for WordPress 4.9.21 and its complementary technologies.
| Technology | Sites |
|---|---|
| MySQL | 84 |
| PHP | 84 |
| jQuery | 82 |
| jQuery Migrate | 66 |
| Apache HTTP Server | 40 |
| Contact Form 7 | 39 |
| Bootstrap | 28 |
| Yoast SEO | 22 |
| Modernizr | 19 |
| Slider Revolution | 19 |
| Nginx | 17 |
| imagesLoaded | 15 |
| wpBakery | 15 |
| HTTP/3 | 14 |
| Google Analytics | 14 |
| Cloudflare | 13 |
| Slick | 12 |
| OWL Carousel | 11 |
| WOW | 10 |
| Cloudflare Browser Insights | 10 |
| WooCommerce | 9 |
| Lightbox | 9 |
| LiteSpeed | 8 |
| reCAPTCHA | 8 |
| YouTube | 7 |
| FitVids.JS | 6 |
| Google Tag Manager | 6 |
| Google Hosted Libraries | 6 |
| Google Maps | 6 |
| Magnific Popup | 6 |
| All in One SEO | 6 |
| Cookie Notice | 5 |
| HSTS | 5 |
| cdnjs | 5 |
| prettyPhoto | 5 |
| Underscore.js | 5 |
| MonsterInsights | 5 |
| ProgressBar.js | 4 |
| Divi | 4 |
| Akismet | 4 |
| Gravatar | 4 |
| jQuery UI | 4 |
| Polylang | 4 |
| Ubuntu | 4 |
| bxSlider | 4 |
| All in One SEO Pack | 4 |
| 3 | |
| Mixitup | 3 |
| OpenSSL | 3 |
| WP Fastest Cache | 3 |
| Language | Sites |
|---|---|
| English | 39 |
| Spanish | 6 |
| Japanese | 6 |
| Polish | 5 |
| Italian | 5 |
| Latin | 5 |
| Russian | 4 |
| Portuguese | 4 |
| Chinese | 4 |
| German | 4 |
| Vietnamese | 2 |
| Turkish | 2 |
| French | 2 |
| Afrikaans | 2 |
| Norwegian Nynorsk | 1 |
| Croatian | 1 |
| Greek | 1 |
| Shona | 1 |
| Danish | 1 |
| Tagalog | 1 |
| Albanian | 1 |
| Romanian | 1 |
| Yoruba | 1 |
| Zulu | 1 |
| Korean | 1 |
| ASN | Sites |
|---|---|
| GoDaddy.com, LLC | 10 |
| Cloudflare, Inc. | 8 |
| Host Europe GmbH | 7 |
| OVH SAS | 5 |
| IONOS SE | 5 |
| Amazon.com, Inc. | 3 |
| VTX Services SA | 2 |
| SAKURA Internet Inc. | 2 |
| PEG TECH INC | 2 |
| Hetzner Online GmbH | 2 |
| Beijing Guanghuan Xinwang Digital | 1 |
| Nazwa.pl Sp.z.o.o. | 1 |
| Beget LLC | 1 |
| EuroByte LLC | 1 |
| Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. | 1 |
| Google LLC | 1 |
| GMO Internet Group, Inc. | 1 |
| HCN CHUNGBUK CABLE TV SYSTEMS | 1 |
| DigitalOcean, LLC | 1 |
| Bulgarian Research and Education Network Association (BREN) | 1 |
| HostLAB Bilisim Teknolojileri A.S. | 1 |
| Heart Internet limited | 1 |
| WHG Hosting Services Ltd | 1 |
| HIVELOCITY, Inc. | 1 |
| Otsuka Corp. | 1 |
| JSC IOT | 1 |
| Hosterion Srl | 1 |
| LeaseWeb Netherlands B.V. | 1 |
| KDDI Web Communications Inc. | 1 |
| Cyber_Folks S.A. | 1 |
| VNPT Corp | 1 |
| VERIUP Bulut Internet Hizmetleri A.S. | 1 |
| Liquid Web, L.L.C | 1 |
| Wind Tre S.p.A. | 1 |
| Sucuri | 1 |
| dhosting.pl Sp. z o.o. | 1 |
| Domain names registrar REG.RU, Ltd | 1 |
| home.pl sp. z o.o. | 1 |
| NSS S.A. | 1 |
| TELEKOM.pl Sp. z o.o. | 1 |
| Iomart Cloud Services Limited | 1 |
| DigiRock, Inc. | 1 |
| Host SpA | 1 |
| Hostwinds LLC. | 1 |
| Universo Online S.A. | 1 |
| Hostopia Australia Web Pty Ltd | 1 |
| Aruba S.p.A. | 1 |
| CHINA UNICOM China169 Backbone | 1 |
| TLD | Sites |
|---|---|
| com | 38 |
| it | 5 |
| co.uk | 5 |
| ru | 4 |
| net | 4 |
| org | 4 |
| co.jp | 3 |
| eu | 2 |
| ch | 2 |
| de | 2 |
| jp | 1 |
| com.vn | 1 |
| ro | 1 |
| at | 1 |
| gr | 1 |
| com.ar | 1 |
| bg | 1 |
| nl | 1 |
| com.au | 1 |
| edu.vn | 1 |
| cn | 1 |
| pl | 1 |
| com.mx | 1 |
| hr | 1 |
| ed.jp | 1 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 22 |
| 🇫🇷 France | 7 |
| 🇩🇪 Germany | 7 |
| 🇵🇱 Poland | 6 |
| 🇯🇵 Japan | 6 |
| 🇷🇺 Russia | 4 |
| 🇬🇧 United Kingdom | 3 |
| 🇮🇹 Italy | 3 |
| 🇨🇠Switzerland | 2 |
| 🇨🇳 China | 2 |
| 🇦🇺 Australia | 2 |
| 🇹🇷 Turkey | 2 |
| 🇸🇬 Singapore | 2 |
| 🇧🇷 Brazil | 1 |
| 🇷🇴 Romania | 1 |
| 🇻🇳 Vietnam | 1 |
| 🇧🇬 Bulgaria | 1 |
| 🇪🇸 Spain | 1 |
| 🇦🇷 Argentina | 1 |
| 🇳🇱 Netherlands | 1 |
| 🇰🇷 South Korea | 1 |