Companies Using LiteSpeed Cache

I run the crawler that stores the response headers of every domain we visit, and LiteSpeed Cache is a row I'd split before anyone prospects from it. Our October 2026 crawl counts 1,560,073 domains, 1st of 12 in Caching with 55.18%, and 811,110 matched to a company. On 16 October 2026 I re-requested a random 600 domains from the clean set, read every header and page, and resolved each address to its network.

Three signals, two products

A domain counts when it sends x-litespeed-cache, sends x-turbo-charged-by: LiteSpeed, sets the plugin's litespeed_docref variable or loads files from the plugin's folder. The first is the server's cache: LiteSpeed's developer docs say the server inserts it when it serves from cache. The second only names the server. In the sample, 377 domains (62.83%) sent the cache header, 132 (22.00%) sent only the server banner, 9 loaded the plugin's files with no LiteSpeed header and 82 showed nothing on the day. Counted by clause, 443 of the 518 that still matched did so on a header alone, and 75 (14.48%) loaded the plugin's files.

Even so, the cache header is mostly the plugin's doing: 353 of the 377 cached pages ended with its "Page cached by LiteSpeed Cache" comment, and 370 were WordPress. Per its WordPress.org page, the plugin tells the server's LSCache what to store and when to purge it, and that cache is a LiteSpeed exclusive feature.

Sales signal: filter on the cache header, not the banner. A banner-only domain runs LiteSpeed's server; it hasn't shown you a page cache.

The host writes most of the headers

Hostinger is the largest group: 180 of 600 (30.00%), on its network or sending its own platform and hcdn headers, and 157 of those returned the cache header. 133 sat behind Cloudflare, where the host is hidden. Namecheap's network held 47, and 39 of them sent only the banner. After that comes a long tail of networks: Amazon 16, OVH 14, Synergy Wholesale 9, Turkey's GNET 8, Hetzner 7, Krystal 6, A2 Hosting 5.

"Nearly a third of this list is Hostinger's servers caching WordPress for their customers, and a fifth is LiteSpeed announcing itself with no cache in sight. Very few of these site owners went looking for a caching product." - David Thomson, CTO at TechnologyChecker.io

Sales signal: for most domains the cache came with the hosting plan. Hosting and migration offers reach these owners; a rival caching product mostly doesn't.

How much of it is live

518 of the 600 (86.33%) still matched on 16 October. 31 didn't answer and 18 sat behind bot checks. 21 showed a placeholder or error page, 7 now serve gambling pages and the other 5 showed no LiteSpeed signal. Our title census of the whole clean set finds 33,407 domains (2.20%) whose last crawled page was a coming-soon or maintenance notice, an error, a directory listing or WordPress's default "My Blog". That's under the level where we remove a fleet, so they stay in the count. The monthly line rose from 1,123,405 in June to 1,560,073 in October, partly because the domains we crawl turn over each month and our detection widens. 335,299 domains dropped the signal on a hostname since 16 March 2026.

Sales signal: expect about one domain in seven to be unreachable, dead or not matching by the time you call.

Who the site owners are

66.28% of sized companies have 1 to 10 staff, 41.35% were founded in the 2010s and the top industry, IT services, holds only 4.37%. The US leads with 131,503 matched companies, but India, Brazil, Turkey, Colombia and Pakistan add up to 183,676. The large names split two ways. Sweco, Oceaneering, Tendam and UofL Health cache their main sites; Inserm, CUNY, UQAM and Agnico Eagle run it on one subdomain, usually a WordPress site a department set up.

Sales signal: in an enterprise row, find the subdomain. The buyer is the team behind that site.

Versions and the patch gap

364 sampled sites printed a plugin version. 335 (92.03%) ran a 7.x release and 236 ran 7.9, all of them older than 7.9.2, the security release LiteSpeed put out on 20 October 2026. 21 (5.77%) ran 6.3.0.1 or older, the range NIST lists for CVE-2024-28000, an unauthenticated privilege-escalation flaw scored 9.8 and published in August 2024. One ran a 1.8 release.

Sales signal: a version this old means nobody updates the site. Maintenance and security services have a clear opening there.

Overlap with other caches

We don't publish switching rows for this page; the overlaps are coexistence. 33,618 domains run LiteSpeed Cache and WP Rocket today, 5,900 NitroPack, 1,518 SpeedyCache, 1,471 Varnish and 790 W3 Total Cache. A plugin on top of a LiteSpeed host is common, because the server cache and the plugin's optimisation features do different jobs.

"Thirty-three thousand sites run LiteSpeed Cache and WP Rocket together. That's two layers on one site, not a migration in progress." - David Thomson, CTO at TechnologyChecker.io

Sales signal: a performance plugin can sell into this base without replacing anything. Pitch the gap the server cache leaves, not a swap.

The stack around it

Across 1,515,245 clean domains, WordPress shows on 85.42%, LiteSpeed's server on 75.31%, PHP on 56.08% and Elementor on 39.68%. Cloudflare fronts 33.83%. Hostinger appears on 32.88% and its CDN on 16.65%. Divi runs on 5.44%.

Sales signal: this is the WordPress page-builder market on budget hosting. Themes, builders, forms and agency services fit it.

What it costs

The plugin is free: version 7.9.2, 7+ million active installations on WordPress.org when I read it on 1 November 2026. The server is the paid part when there is one. LiteSpeed's pricing page lists its Web Server from $0 a month, and OpenLiteSpeed is the open-source edition. On shared hosting that cost sits with the host.

Key takeaways

1. 1,560,073 domains, 55.18% of Caching; 86.33% of a 600-domain sample still matched on 16 October 2026.

2. Hostinger hosts 30.00% of the sample, Namecheap's network 7.83%.

3. 22.00% of the sample sent only LiteSpeed's server banner, a header that names the server and nothing more.

4. 66.28% of sized companies have 1 to 10 staff.

5. 5.77% of version-printing sites run a plugin release covered by CVE-2024-28000, and every sampled version predates the 7.9.2 security release of 20 October 2026.

How to use this list

Filter to the cache header, then split by host. Hostinger and Namecheap customers bought a hosting plan, and so did many of the rest, which include other shared hosts and 133 domains whose host Cloudflare hides. The enterprise subdomains are the likeliest to be a team's own choice. Compare with WP Rocket for the plugin side, and see our guide to how we detect technologies for what a header rule can and can't tell you. The full list of 1,560,073 domains, with 811,110 matched companies, is on TechnologyChecker.io.