PHP 8.4.21 icon

Websites using PHP 8.4.21

PHP is a general-purpose scripting language used for web development.

Lead List Exporter

42.4k live PHP 8.4.21 sites, ready to export.

That's how many PHP 8.4.21 websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.

Pick a ready-made template, or build your own filters in the Lead List Exporter and pay only for the rows you export.

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Just need a few domains? Export up to 10 free from a subset of our crawl.

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Every PHP 8.4.21 website we detected in the United States.

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 8.4.21 websites on .com domains.

Only sites where an organisation phone number was found.

Create your own

How many websites use PHP 8.4.21?

We found PHP 8.4.21 on 42,435 websites in our September 2026 crawl, across 145 countries.

Which countries use PHP 8.4.21 the most?

By number of websites, the top countries are United States (22%, 9,137 sites), Netherlands (13%, 5,433 sites), Germany (9%, 3,698 sites), United Kingdom (4%, 1,763 sites) and Japan (4%, 1,599 sites). Together they account for 51% of the 42,435 PHP 8.4.21 sites we track. 46% of the sites are in English, and .com is the most used domain ending, on 45% of them.

Where are PHP 8.4.21 websites hosted?

The networks carrying the most PHP 8.4.21 sites are Cloudflare, Inc. (5,212 sites), GoDaddy.com, LLC (4,109 sites) and Hostinger International Limited (3,680 sites).

What technologies are used with PHP 8.4.21?

Across the 42,435 PHP 8.4.21 sites we track, the technologies most often found alongside it are jQuery (72%, 30,717 sites), MySQL (69%, 29,358 sites), WordPress (69%, 29,267 sites), jQuery Migrate (51%, 21,701 sites) and HTTP/3 (37%, 15,635 sites).

Deep Dive

Breakdown of PHP 8.4.21 websites

What else they run, plus their language, hosting network, domain extension and country.

FAQ

Answers drawn from our latest crawl of PHP 8.4.21 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.