A Redis object cache is built in, so dynamic pages, searches and the admin get faster too.
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A WP Fastest Cache alternative
WP Fastest Cache is a popular free static-file cache. Zinn® Cache adds a Redis object cache, purging by tag and LiteSpeed's server cache. How they compare.

The short answer
WP Fastest Cache is a simple, popular free page cache. Zinn® Cache is just as free and adds a Redis object cache and purging that clears only the pages a change touched.
| Zinn® Cache | WP Fastest Cache | |
|---|---|---|
| Price | Free; Pro add-on from an annual licence | Free; a premium version is sold separately[1] |
| Free version | Yes | Yes[1] |
| Server needed for its page cache | Any server: LiteSpeed's cache or a file cache | Apache (mod_rewrite), Nginx or IIS[1] |
| Object cache | Redis; Pro adds an APCu tier | Not listed on its WordPress.org page[1] |
| Optional third-party online services | None in the cache; Freemius for Pro's licence | Optional CDN and Cloudflare integration[1] |
Sources
Why people choose Zinn® Cache over WP Fastest Cache
Smart purging: saving a post clears that post, its archives and the home page — not the whole cache.
On LiteSpeed hosting it uses the server's own cache, so a cached page never starts PHP.
Where it is the better choice
WP Fastest Cache is used on more than a million sites, is easy to switch on, and its free version minifies HTML and CSS and integrates with CDNs. If you want static-file caching with minify in one free plugin, it is a fine choice.
Where Zinn® Cache fits
Zinn® Cache adds what it does not list: a Redis object cache, purging by content tag, and LiteSpeed's server-level cache where your host has it. Asset optimisation lives in the Pro add-on.
How to switch from WP Fastest Cache in three steps
Install Zinn® Cache, keep it switched off
Add the free plugin from your WordPress dashboard. Before you turn it on, note which pages WP Fastest Cache leaves uncached — cart, checkout, account pages — so you can check they stay uncached after the move.
Deactivate WP Fastest Cache, then turn Zinn® Cache on
Never run two page caches at once. Deactivate WP Fastest Cache first, then switch Zinn® Cache on. Shop and signed-in visitors are left out of the cache by default.
Check it is working
Open your site in a private window and reload: the status panel shows which page cache is in use, and the guide on checking your cache shows how to read the response headers. Then delete WP Fastest Cache for good.
Questions about switching from WP Fastest Cache
Can I run Zinn® Cache and WP Fastest Cache together?
Not as two page caches — two caches storing the same page fight each other and make problems hard to find. Deactivate WP Fastest Cache before you switch Zinn® Cache on.
Is Zinn® Cache really free?
Yes. The page cache, tag-based purging, the Redis object cache and shop-safe exclusions are free for good, with no licence key. Zinn® Cache Pro is an optional add-on from $49 a year, with a free trial and no card needed.
Will my site be faster than with WP Fastest Cache?
Any good page cache makes the biggest difference: on our own measured test a cached page started arriving in 40 ms instead of 107 ms. How Zinn® Cache compares with WP Fastest Cache on your site depends on your host and theme, so measure before and after — the benchmark page shows how.
More WordPress cache plugin comparisons
- A free WP Rocket alternative
- LiteSpeed Cache or Zinn® Cache?
- A W3 Total Cache alternative
- A WP Super Cache alternative with an object cache
- A NitroPack alternative that runs on your own server
- A free FlyingPress alternative
Competitor details were read from their own public pages on the date shown. Tell us if something has changed and we will correct it.
Included free with Zinn Digital® hosting
Get Zinn® Cache free on Zinn Digital® hosting
Every WordPress site on our own servers comes with Zinn® Cache installed and connected: the page cache is on, the Redis object cache is managed for you, and plugin updates arrive on their own. Zinn® Cache Pro is not included; add it to any site when you want it.