OpenSSL icon

Websites using OpenSSL

OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end.

Lead List Exporter

337.6k live OpenSSL sites, ready to export.

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

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Every OpenSSL 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 OpenSSL websites on .com domains.

Only sites where an organisation phone number was found.

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Versions

Which OpenSSL versions are most used?

We could read a version number on 24% of OpenSSL sites. Of those, the most common are OpenSSL 3, on 80,727 sites and OpenSSL 4, on 851 sites.

99% on v3
Versions detected
2
Sites with a version
81,578
Share of sites by version
v3 99% v4 1%

How many websites use OpenSSL?

We found OpenSSL on 337,644 websites in our September 2026 crawl, across 210 countries.

Which countries use OpenSSL the most?

By number of websites, the top countries are United States (20%, 68,476 sites), Japan (14%, 47,068 sites), Netherlands (7%, 24,954 sites), South Korea (6%, 19,122 sites) and Germany (5%, 16,432 sites). Together they account for 52% of the 337,644 OpenSSL sites we track. 32% of the sites are in English, and .com is the most used domain ending, on 43% of them.

Where are OpenSSL websites hosted?

The networks carrying the most OpenSSL sites are Amazon.com, Inc. (45,337 sites), SAKURA Internet Inc. (22,522 sites) and OVH SAS (10,645 sites).

What technologies are used with OpenSSL?

Across the 337,644 OpenSSL sites we track, the technologies most often found alongside it are Apache HTTP Server (over 99%, 337,616 sites), PHP (80%, 268,828 sites), jQuery (63%, 212,280 sites), MySQL (27%, 91,808 sites) and CentOS (27%, 90,082 sites).

Deep Dive

Breakdown of OpenSSL websites

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

Same category

Other technologies in Web server extensions

Web server extensions technologies run on 0.95% of the websites we track. OpenSSL ranks #1 of 14, on 69.57% of Web server extensions sites.

All Web server extensions technologies

FAQ

Answers drawn from our latest crawl of OpenSSL 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.