Memcached Object Cache

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share of active installs on each version of this plugin · 100% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

Refined from the date this plugin crossed into its current band.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

1. ★★★★★ rambillo

   2.9y ago

   Install is not like other plugins — and in fact if you do upload it to plugins and then activate it, it’ll bring your site down in many cases. You can upload it (but don’t activate!) and then use the server side to move the plugin file manually into wp-content (and then delete the uploaded plugin folder and readme.txt). But that’s not enough to make the whole thing work! You also need memcached running on your server and properly configured, and the pecl memcache extension compiled on the server side in your php configuration, too. Make sure to use a unique salt as well. Once it’s all there, the speed improvement is significant! Happy to try and help those that respond to this thread if you need — or at least try to get you pointed in the right direction. Thanks for the plugin, devs! Appreciate as you update and keep current as well!

   Read on wp.org ↗
2. ★★★★★ kalagan80

   3.0y ago

   Unable to install the plugin : application not recognized.

   Read on wp.org ↗
3. ★★★★★ terrykernan

   3.3y ago

   Tip for others here, if you are getting this error: “Cannot redeclare wp_cache_add” It probably means you have the object-cache.php file in the wrong directory, it should not be in the plugins/memcached/ folder, it should be moved to the wp-content folder!

   Read on wp.org ↗
4. ★★★★★ legarsfred

   3.4y ago

   Fatal error: Cannot redeclare wp_cache_add() (previously declared in /htdocs/wp-includes/cache.php:41) in /htdocs/wp-content/plugins/memcached/object-cache.php on line 19

   Read on wp.org ↗
5. ★★★★★ Miguel

   3.5y ago

   It works well even with WPRocket Cache plugin. If you get fatal errors don’t forget to install PECL memcache module to PHP.

   Read on wp.org ↗
6. ★★★★★ Alex Volkov

   3.6y ago

   Fatal error: Cannot redeclare wp_cache_add() (previously declared in /home/accessib/public_html/wp-includes/cache.php:41) in /public_html/wp-content/plugins/memcached/object-cache.php on line 19

   Read on wp.org ↗
7. ★★★★★ sibermedya

   3.6y ago

   Php 7.4 Cannot redeclare wp_cache_add() (previously declared in C:\xampp\htdocs\wp-includes\cache.php:41) in C:\xampp\htdocs\wp-content\plugins\memcached\object-cache.php on line 19

   Read on wp.org ↗
8. ★★★★★ Daschmi

   3.8y ago

   Not working PHP8

   Read on wp.org ↗

Automated install-time checks, tested on PHP 7.4.8 · WP 5.8

Translated into 8 languages, 7 at 90% or more

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

1. 2026-07-14 20+ → 10+ down after 295 days in tier
2. 2025-09-22 30+ → 20+ down after 5 days in tier
3. 2025-09-17 20+ → 30+ up after 23 days in tier
4. 2025-08-25 30+ → 20+ down after 68 days in tier
5. 2025-06-18 20+ → 30+ up after 26 days in tier
6. 2025-05-23 30+ → 20+ down after 28 days in tier
7. 2025-04-25 20+ → 30+ up after 92 days in tier
8. 2025-01-23 30+ → 20+ down after 351 days in tier

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

• Object Cache 4 everyone 5K+ installs · 4.1★ · 2 shared tags A
• M MemcacheD Is Your Friend 1K+ installs · 4.1★ · 2 shared tags D
• B Batcache 700+ installs · 4.0★ · 2 shared tags D
• Cache Master 400+ installs · 4.4★ · 2 shared tags D
• M Memcached Redux 100+ installs · 4.1★ · 2 shared tags D
• W WP Memcached Manager 60+ installs · 3.9★ · 2 shared tags D

Embed this report card

Drop a live Pulse card for Memcached Object Cache into a readme, a review or a deck. It updates itself.

Memcached Object Cache: 10+ active installs, 3.8★ (28 reviews). Plugin Pulse (WP Mayor), as of 2026-08-31. https://plugins.wpmayor.com/plugin/memcached