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PageSpeed Ninja – Cache, Minify, Defer CSS JavaScript, Critical CSS, Optimize Images, Convert WebP

by PageSpeed · Performance

Boost page speed: cache, compress, optimize images to WebP, minify CSS/JS, defer loading, lazy load, generate critical CSS, improve Core Web Vitals

⚠ Stale
How scoring works →
59 Health · C
Maintenance 27/100
Rating quality 87/100
Support 70/100

59 health vs 67 average across 1,075 Performance plugins

Directory ranking optimization

How it's scored →

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

76 / 100

Well optimized

Biggest win: Update recency

Update recency 37/100
WP compatibility 88/100
Rating quality 88/100
Listing tuning 100/100

To rank higher: Last updated 702 days ago — ship an update; wp.org decays a listing's search weight after ~180 days.

Get the full rank-higher report →

Daily downloads

Since 2022-10-05 · 1,424 days · wp.org + Plugin Pulse archive

+21% vs prior 30d
56Downloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

691

now · peak 42.4K

66330d downloads · Aug 26

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

PageSpeed Ninja · #3137 you Image Optimization · #59 Asset CleanUp: Page · #436 Hummingbird Performa · #591

Rating trend

Star average over time · dips mark rough releases

4.5Stars · Aug 26

Update activity

How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.

133per 1k installs · Aug 26

Release cadence

No release in a year
from wp.org release tags

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

0

releases in the last 12 months

1.9y ago

latest release · v1.4.5

84

tagged releases on record

Recent releases

1.4.5 · 1.9y ago1.4.4 · 2.0y ago1.4.3 · 2.2y ago1.4.2 · 2.2y ago1.4.1 · 2.2y ago1.4.0 · 2.2y ago1.3.13 · 2.4y ago1.3.12 · 2.4y ago1.3.11 · 2.4y ago1.3.10 · 2.4y ago1.3.9 · 2.4y ago1.3.8 · 2.4y ago1.3.6 · 2.4y ago1.3.5 · 2.5y ago

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 49% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v1.4 49%
v0.9 46%
Older / other versions 5%

Estimated active installs

The public count shows “5K+”. Our estimate pins where the real number sits.

tracked estimate
5K–6K ≈5.5K

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

Install history · since 2018-04-28 · 1,430 observations

5KInstalls · Aug 26

Estimated value

What this plugin might earn a year, and what it might sell for. Modeled from public signals; we don't see anyone's books.

Est. annual revenue

N/A

Est. acquisition value

N/A

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.

Details

Version
1.4.5
Last updated
1.9y ago
Added
2017-08-30 · 8 yrs old
Requires WP
4.6
Tested up to
6.6.7
Requires PHP
5.6

Recent reviews

All reviews on wp.org ↗
  1. adamnasser
    1.3y ago

    horribly bad, you can’t change any settings until you pay a subscription! don’t waste your time

    Read on wp.org ↗
  2. esoleybus
    2.3y ago

    The plugin is successful in terms of optimization, but it automatically added a footer link without my consent. I thought it was spam, but I realized it wasn’t. You can remove it in advanced settings. This topic was modified 2 years, 2 months ago by esoleybus. This topic was modified 2 years, 2 months ago by esoleybus.

    Read on wp.org ↗
  3. ooftsauce
    2.3y ago

    I was concerned about load speed for my pages and did a Google page speed and found that my desktop was around 70 and mobile around 55. I installed this package and I saw significant improvement immediately to 98 desk and 70 mobile. Tony Johnson ooftsauce.com

    Read on wp.org ↗
  4. remzi17
    2.5y ago

    <font style=”vertical-align: inherit;”><font style=”vertical-align: inherit;”>Достали эти уведомления о лицензии на всех страницах админки!!! Идите в одно место с такой назойливостью.</font></font>

    Read on wp.org ↗
  5. lagg333673034
    2.8y ago

    The best pagespeed optimization plugin. 91/100 mobile, 100/100 desktop!

    Read on wp.org ↗
  6. Navin Sigamany
    2.8y ago

    This plugin completely broke my mobile site – the reason? They wanted me to get a free licence. I’m happy to get a licence and pay for it – but messing with my website is not the best way to incentivize me.

    Read on wp.org ↗
  7. den7777
    3.9y ago

    Creates a folder “S” in the root of the site with suspicious content, as they say it’s a cache. But the plugin was disabled in the admin panel, and the “cache” was created, why? Breaks sometimes completely at a random moment the layout on the site

    Read on wp.org ↗
  8. isma381
    4.4y ago

    Spectacular! you just have to know how to use your settings well, 99 on desktop and 62 on mobile

    Read on wp.org ↗

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 6.6.2

Low memory footprint
Low page-speed impact
Runs on latest PHP + WP
No PHP errors
No JS errors
Activates cleanly
No resource errors
No external HTTP errors
Optimized database use
Frequently updated

Languages

via translate.wordpress.org

Translated into 7 languages, 0 at 90% or more

Russian 19%
Romanian 15%
French (France) 13%
German (Formal) 12%
Dutch 7%
Spanish (Spain) 2%
German 1%

Growth timeline

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

  1. 2026-06-06 6K+ → 5K+ down after 155 days in tier
  2. 2026-01-02 7K+ → 6K+ down after 137 days in tier
  3. 2025-08-18 8K+ → 7K+ down after 110 days in tier
  4. 2025-04-30 9K+ → 8K+ down after 107 days in tier
  5. 2025-01-13 10K+ → 9K+ down after 543 days in tier
  6. 2023-07-20 20K+ → 10K+ down

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).

Compare head to head →

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Preview card ↗

PageSpeed Ninja – Cache, Minify, Defer CSS JavaScript, Critical CSS, Optimize Images, Convert WebP: 5K+ active installs, 4.5★ (114 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/psn-pagespeed-ninja