Download websites that use LiteSpeed

About LiteSpeed

LiteSpeed is unusual in its category because it is commercial software competing in a market where the alternatives are free. That single fact explains most of what the data shows about it. As of September 2026 we detect it on 6,037,801 sites, and almost none of those sites chose it.

Hosting companies chose it. A commercial server wins on operational economics rather than on features that matter to an individual site owner, so adoption happens at the provider level and propagates to every customer on the platform at once. The population therefore clusters extremely tightly by provider, and individual detections are better understood as evidence about a hosting company than about a website.

That makes this one of the more efficient signals in the index for anyone selling into the hosting market. Grouping the population by the other technologies that travel with it surfaces provider boundaries clearly, because customers of one host share a fingerprint that customers of another do not. Finding the providers is a clustering exercise over a full list, not a series of lookups.

It also has a specific relationship with the surrounding ecosystem. The server ships with a caching integration for the dominant content platform, so its presence frequently coincides with that platform and with the performance plugin that pairs with it. Those co-occurrences are visible only when every detection on a domain sits on the same row.

United States accounts for 1,935,813 of detections and the .com zone leads, following where the hosting companies that adopted it operate rather than any end-user preference.

For competitors in the server market, and for anyone selling performance or migration services, the useful population is defined by intersection: this server, plus a specific platform, plus evidence of a performance problem the owner has already tried to solve. That combination identifies sites where the pain is established rather than hypothetical.

The webatla export provides the full population with every co-detected technology, the hosting country and the TLD on one row, rebuilt daily and filtered locally.

The provider clustering has a practical consequence for anyone using this data competitively. Because adoption happens at the fleet level, a displacement opportunity is not a thousand small conversations but a handful of large ones, and identifying which fleet a set of domains belongs to is the entire problem. The domains are visible and the provider is not, at least not directly.

Recovering it is a clustering exercise over the surrounding stack. Hosts leave consistent traces: the same control panel, the same caching plugin, the same mail configuration, the same certificate issuance pattern. Grouping the population by those co-detections separates one fleet from another with reasonable reliability, and the result converts a long list of sites into a short list of companies worth calling.

LiteSpeed Technologies sells it under a Proprietary license and has been shipping it since 2002. Because it is licensed to hosts rather than to sites, the vendor's own customer list counts providers while the web counts installations, and the two numbers describe very different things.