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 3.9.9 Complementary Technologies
Technologies frequently found with WordPress 3.9.9.
Live WordPress 3.9.9 Sites
14
Complementary Tech
46
Most Frequent Complementary Tech
Websites Using WordPress 3.9.9
An unordered, non-ranked list generated from observed technology data.
| Domain | Server Location | ASN | Crawl Date |
|---|---|---|---|
| priekavos.lt | 🇱🇹 Lithuania | UAB Interneto vizija | February 14, 2026 |
| henryandthenightcrawlers.com | 🇺🇸 United States | Liquid Web, L.L.C | February 14, 2026 |
| bevisibleassoc.com | Unknown | Cloudflare, Inc. | February 14, 2026 |
| coolcampers.fr | 🇫🇷 France | OVH SAS | February 14, 2026 |
| tatreezshop.com | 🇩🇪 Germany | IONOS SE | February 13, 2026 |
| danbaoli-blog.cn | 🇨🇳 China | Hangzhou Alibaba Advertising Co.,Ltd. | February 13, 2026 |
| pierwszawojna.info | 🇨🇭 Switzerland | FranTech Solutions | February 8, 2026 |
| xn--80acbicddaug4avfh8v.net | 🇧🇬 Bulgaria | SuperHosting.BG Ltd. | February 8, 2026 |
| rcacommercialtv.com | Unknown | Cloudflare, Inc. | February 8, 2026 |
| makerfaireatl.com | Unknown | Cloudflare, Inc. | February 8, 2026 |
| naftamexico.net | Unknown | Cloudflare, Inc. | February 7, 2026 |
| whitecrosslibrary.com | 🇺🇸 United States | The Producers, Inc. | February 7, 2026 |
| meredithplays.com | Unknown | Cloudflare, Inc. | February 7, 2026 |
| beautyskin-andrea.ch | 🇨🇭 Switzerland | cyon AG | February 7, 2026 |
Find Your Customers By Their Technologies
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Who is using WordPress 3.9.9 and where.
Countries
Top 5 most detected countries for WordPress 3.9.9
ASNs
Top 5 most detected ASNs for WordPress 3.9.9
Languages
Top 5 most detected Languages for WordPress 3.9.9
TLDs
Top 5 most detected TLDs for WordPress 3.9.9
Most Frequent WordPress 3.9.9 Identifiers and Complementary Tech
Most frequently encountered identifiers for WordPress 3.9.9 and its complementary technologies.
| Technology | Sites |
|---|---|
| MySQL | 14 |
| PHP | 14 |
| jQuery | 13 |
| jQuery Migrate | 11 |
| Yoast SEO | 7 |
| Contact Form 7 | 6 |
| Apache HTTP Server | 6 |
| HTTP/3 | 6 |
| Cloudflare Browser Insights | 5 |
| Cloudflare | 5 |
| WooCommerce | 4 |
| HSTS | 3 |
| jQuery UI | 2 |
| WPML | 2 |
| Clicky | 2 |
| Bootstrap | 2 |
| YouTube | 2 |
| Slider Revolution | 1 |
| W3 Total Cache | 1 |
| SWFObject | 1 |
| All in One SEO Pack | 1 |
| jsDelivr | 1 |
| Akismet | 1 |
| mod_ssl | 1 |
| Nginx | 1 |
| jQuery Mobile | 1 |
| OpenSSL | 1 |
| Jetpack | 1 |
| LiteSpeed Cache | 1 |
| mod_dav | 1 |
| Cloudflare Bot Management | 1 |
| 1 | |
| WooCommerce Multilingual | 1 |
| UNIX | 1 |
| Gravatar | 1 |
| Chosen | 1 |
| All in One SEO | 1 |
| WordPress Super Cache | 1 |
| CyberChimps Responsive | 1 |
| Google Tag Manager | 1 |
| Google Publisher Tag | 1 |
| Modernizr | 1 |
| Google Analytics | 1 |
| Magnific Popup | 1 |
| MailChimp | 1 |
| LiteSpeed | 1 |
| Language | Sites |
|---|---|
| English | 6 |
| German | 1 |
| Lithuanian | 1 |
| Bulgarian | 1 |
| Russian | 1 |
| Tagalog | 1 |
| Tsonga | 1 |
| Polish | 1 |
| Romanian | 1 |
| Chinese | 1 |
| French | 1 |
| ASN | Sites |
|---|---|
| Cloudflare, Inc. | 5 |
| IONOS SE | 1 |
| OVH SAS | 1 |
| Liquid Web, L.L.C | 1 |
| cyon AG | 1 |
| The Producers, Inc. | 1 |
| UAB Interneto vizija | 1 |
| FranTech Solutions | 1 |
| Hangzhou Alibaba Advertising Co.,Ltd. | 1 |
| SuperHosting.BG Ltd. | 1 |
| TLD | Sites |
|---|---|
| com | 7 |
| net | 2 |
| lt | 1 |
| info | 1 |
| cn | 1 |
| fr | 1 |
| ch | 1 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 2 |
| 🇨🇭 Switzerland | 2 |
| 🇩🇪 Germany | 1 |
| 🇨🇳 China | 1 |
| 🇫🇷 France | 1 |
| 🇱🇹 Lithuania | 1 |
| 🇧🇬 Bulgaria | 1 |