356 live PHP 5.6.21 sites, ready to export.
That's how many PHP 5.6.21 websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.
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Every PHP 5.6.21 website we detected in China.
Only sites where a personal, company-hosted email was found.
Sites with at least one personnel LinkedIn profile.
Start with the highest-traffic end of the dataset.
Limit results to PHP 5.6.21 websites on .com domains.
Only sites where an organisation phone number was found.
Websites Using PHP 5.6.21
A sample of live PHP 5.6.21 sites from our latest crawl, with the other technologies each one runs.
| Domain | Also runs | Crawl Date |
|---|---|---|
| sentuxueyuan.com | September 27, 2026 | |
| yaas365.com | September 26, 2026 | |
| dusseldorf-hotel.net | September 25, 2026 | |
| takumi-probook.jp | September 25, 2026 | |
| praetor.si | September 24, 2026 | |
| jincaikj.com | September 23, 2026 | |
| glkjszs.com | September 23, 2026 | |
| acc-edu.com | September 20, 2026 | |
| jsck.com | September 19, 2026 | |
| cpasky.com | September 18, 2026 |
How many websites use PHP 5.6.21?
We found PHP 5.6.21 on 356 websites in our September 2026 crawl, across 38 countries.
Which countries use PHP 5.6.21 the most?
By number of websites, the top countries are China (22%, 77 sites), United States (13%, 46 sites), Japan (10%, 34 sites), Argentina (7%, 26 sites) and Italy (4%, 13 sites). Together they account for 55% of the 356 PHP 5.6.21 sites we track. 28% of the sites are in English, and .com is the most used domain ending, on 46% of them.
Where are PHP 5.6.21 websites hosted?
The networks carrying the most PHP 5.6.21 sites are Hangzhou Alibaba Advertising Co.,Ltd. (40 sites), Amazon.com, Inc. (39 sites) and Akamai Connected Cloud (24 sites).
What technologies are used with PHP 5.6.21?
Across the 356 PHP 5.6.21 sites we track, the technologies most often found alongside it are jQuery (81%, 289 sites), Apache HTTP Server (58%, 206 sites), Bootstrap (40%, 143 sites), Windows Server (29%, 105 sites) and OpenSSL (28%, 98 sites).
Breakdown of PHP 5.6.21 websites
What else they run, plus their language, hosting network, domain extension and country.
| Technology | Sites |
|---|---|
jQuery | 289 |
Apache HTTP Server | 206 |
Bootstrap | 143 |
Windows Server | 105 |
OpenSSL | 98 |
MySQL | 91 |
Nginx | 80 |
|
jQuery Migrate | 76 |
WordPress | 63 |
Google Analytics | 57 |
IIS | 53 |
Google Hosted Libraries | 43 |
jQuery UI | 38 |
Cloudflare | 37 |
OWL Carousel | 31 |
Modernizr | 28 |
CentOS | 25 |
| HSTS | 25 |
HTTP/3 | 25 |
YouTube | 24 |
|
jQuery CDN | 24 |
reCAPTCHA | 24 |
osCommerce | 23 |
Google Tag Manager | 21 |
Lightbox | 21 |
| Language | Sites |
|---|---|
| English | 101 |
| Chinese | 77 |
| Japanese | 33 |
| Spanish | 17 |
| Italian | 11 |
| Korean | 11 |
| Latin | 8 |
| Polish | 8 |
| Russian | 8 |
| Dutch | 7 |
| Ukrainian | 6 |
| French | 5 |
| Portuguese | 5 |
| Afrikaans | 4 |
| Norwegian Bokmål | 3 |
| Swahili | 3 |
| Tagalog | 3 |
| Xhosa | 3 |
| Arabic | 2 |
| Czech | 2 |
| German | 2 |
| Norwegian Nynorsk | 2 |
| Southern Sotho | 2 |
| Turkish | 2 |
| Vietnamese | 2 |
| ASN | Sites |
|---|---|
| Hangzhou Alibaba Advertising Co.,Ltd. | 40 |
| Amazon.com, Inc. | 39 |
| Akamai Connected Cloud | 24 |
| Chinanet | 18 |
| Cloudflare, Inc. | 17 |
| IFX Corporation | 15 |
| SAKURA Internet Inc. | 12 |
| NHNCLOUD | 11 |
| Laboratory of Information Technologies LLC | 9 |
| NSS S.A. | 8 |
| Alibaba (US) Technology Co., Ltd. | 7 |
| Fastweb | 6 |
| Hetzner Online GmbH | 6 |
| KIZA | 6 |
| Prox System Design Inc. | 6 |
| Team Blue Carrier Limited | 5 |
| Your Hosting B.V. | 5 |
| CLOUDFLARENET | 4 |
| DigitalOcean, LLC | 4 |
| OVH SAS | 4 |
| CHINANET Liaoning province Dalian MAN network | 3 |
| IONOS SE | 3 |
| JSC Severen-Telecom | 3 |
| Neterra Ltd. | 3 |
| Netlink Sp. z o o | 3 |
| TLD | Sites |
|---|---|
| com | 163 |
| net | 28 |
| ar | 22 |
| cn | 20 |
| jp | 16 |
| ua | 12 |
| org | 10 |
| kr | 7 |
| pl | 7 |
| ru | 7 |
| it | 5 |
| tw | 5 |
| nl | 4 |
| bg | 3 |
| br | 3 |
| at | 2 |
| au | 2 |
| cz | 2 |
| de | 2 |
| fi | 2 |
| fr | 2 |
| hk | 2 |
| mx | 2 |
| no | 2 |
| si | 2 |
| Country | Sites |
|---|---|
| 🇨🇳 China | 77 |
| 🇺🇸 United States | 46 |
| 🇯🇵 Japan | 34 |
| Unknown | 29 |
| 🇦🇷 Argentina | 26 |
| 🇮🇹 Italy | 13 |
| 🇺🇦 Ukraine | 13 |
| 🇰🇷 South Korea | 12 |
| 🇵🇱 Poland | 10 |
| 🇩🇪 Germany | 9 |
| 🇷🇺 Russia | 9 |
| 🇬🇧 United Kingdom | 8 |
| 🇭🇰 Hong Kong | 8 |
| 🇳🇱 Netherlands | 6 |
| 🇹🇼 Taiwan | 6 |
| 🇨🇦 Canada | 5 |
| 🇫🇷 France | 5 |
| 🇦🇺 Australia | 3 |
| 🇧🇬 Bulgaria | 3 |
| 🇧🇷 Brazil | 3 |
| 🇮🇳 India | 3 |
| 🇲🇽 Mexico | 3 |
| 🇸🇮 Slovenia | 3 |
| 🇦🇹 Austria | 2 |
| 🇨🇿 Czech Republic | 2 |
FAQ
Answers drawn from our latest crawl of PHP 5.6.21 websites. Anything else, email us and we will look it up.
Through our own crawl, which checks each site's HTML, scripts and headers rather than relying on self-reported data.