celeris
Get a licensefrom €25/yr

WordPress cache and optimization

Your pages served before WordPress even wakes up.

Celeris saves every page as HTML and lets the web server return it directly. No PHP, no database, no waiting — plus everything else: used CSS, deferred scripts, on-demand images.

See pricing How it works
Yearly license · No mandatory third-party service · Your data stays on your server
GET /pricing/
Visitorrequests a page
Web serverreturns the file
PHPnot started
WordPressnot started
38 msresponse time with Celeris
640 mswithout
94 %of visits never reach WordPress

Everything that weighs on a page, handled.

Each feature is a switch, with its own exclusions. Turn them on one at a time, check, move on.

Page cache

HTML files served by Apache or Nginx without starting PHP. Separate mobile cache, precompressed gzip, targeted purge on every change.

Used CSS

Every page is analysed in the background: only the styles it uses are inlined, the rest loads without blocking rendering.

Delayed scripts

Trackers, chats and maps only start on the first user interaction. Everything else is deferred after rendering.

Images

Lazy loading, missing dimensions filled in, WebP and AVIF generated and served, YouTube and Vimeo replaced by their thumbnail.

Built-in measurements

Response time with and without Celeris, PageSpeed scores before and after, right from your WordPress dashboard.

Server and CDN

Apache rules written for you, Nginx snippet provided, purge relayed to Varnish and Cloudflare, rewriting to your CDN.

Measured, not promised

The "before" can be measured any time.

Celeris knows how to serve your site without itself. The "Measure" button compares both live: not a screenshot of someone else's site — your own numbers, on your own server.

Without Celeris640 ms
With Celeris38 ms

Server response time, median of three requests, home page of a WooCommerce demo site.

One price, no surprises.

Every feature in every plan. The only difference is the number of sites.

Sandbox mode: payments are simulated with Stripe test keys.

Starter

€25per yearexcl. VAT

One site, every feature. Less than half the price of the market leader.

  • 1 site
  • Every feature
  • One year of updates and support
  • Email support
Most popular

Pro

€99per yearexcl. VAT

Five sites for freelancers and small agencies.

  • 5 sites
  • Every feature
  • One year of updates and support
  • Email support

Agency

€200per yearexcl. VAT

One hundred sites, priority support. More than that? Write to us.

  • 100 sites
  • Every feature
  • One year of updates and support
  • Email support

Prices are excluding VAT. VAT is added at checkout according to your country; EU businesses with a valid VAT number are charged without it. Secure payment by Stripe. Yearly plans renew automatically and can be cancelled anytime from your account.

Frequently asked questions

Does it replace WP Rocket?

Yes, feature for feature: cache, minification, defer, delayed scripts, used CSS, images, preloading, database. Two things differ. Used CSS is worked out on your own server, from the HTML your site already produces, so no page leaves for a third-party service. And the before and after measurements are built in rather than left to you.

Does anything leave my server?

Two things, both described here and in the terms of sale. Once a day the plugin reports your site address, software versions, which options are on and how many pages are cached — never content, never anything about your visitors, and the exact payload is printed in the plugin settings. And if you switch on the optional critical CSS service, the address of the page is sent to our renderer, which opens that public URL and returns the styles for the first screen. Everything else, including used CSS, is computed where your site runs.

What happens if I do not renew?

The plugin keeps working normally. You simply stop receiving updates and support.

Is my host compatible?

Apache, LiteSpeed and Nginx are supported. On Apache the rules are written automatically; on Nginx a configuration block is provided. Without server access, the cache still works through PHP.

Can I move a license to another site?

Any time. Detach a site from your account or from the plugin, and the seat is freed immediately.

Does it work with WooCommerce and multilingual sites?

Cart, checkout and account pages are never cached; WooCommerce sessions are respected. Polylang and WPML languages are part of the cache key.

Install, activate, measure.

Five minutes is enough. And if it is not faster, write to us.

Choose a plan

From the blog

All articles →
The same page measured with and without the cache

Third-party scripts: the part of your page you do not control

Analytics, chat, maps and fonts cost far more than their size. Three ways to make them cheap, and the ones you must…

September 9, 2026Images in modern formats loaded on demand, and third-party scripts deferred to the end

Images: the cheapest speed win on most sites

Images are 60 to 80% of a typical page. Modern formats, on-demand loading, dimensions, and the one image you must never defer.

September 6, 2026Two request paths: without a cache, PHP and WordPress build the page; with a cache, the web server returns a file

Why WordPress gets slower as it grows

Sites are rarely slow on day one. Revisions, leftover options, plugins loading everywhere: what accumulates, how to tell which one is hurting,…

September 3, 2026