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Speed Optimizer – The All-In-One Performance-Boosting Plugin

by SiteGround · Performance

Also makes 4 other plugins · 3.1M+ installs across the portfolio →

Boost your website performance and page speed, and increase conversions with powerful caching, frontend, media, and environment optimizations.

How scoring works →
72 Health · B
Maintenance 100/100
Rating quality 79/100
Support 18/100

72 health vs 67 average across 1,076 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.

82 / 100

Well optimized

Biggest win: Support resolution

Update recency 100/100
WP compatibility 100/100
Rating quality 84/100
Listing tuning 100/100
Support resolution 0/100

To rank higher: Mark more forum threads resolved — the resolved ratio feeds the ranking.

Get the full rank-higher report →

Daily downloads

Since 2022-10-05 · 1,421 days · wp.org + Plugin Pulse archive

+28% vs prior 30d
4KDownloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

1.6M

now · peak 5.3M

1.59M30d 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

Speed Optimizer · #43 you Cachify · #2289 FastPixel Cache · #3439 Cache Using Gzip · #9681

Rating trend

Star average over time · dips mark rough releases

4.2Stars · 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.

1.6Kper 1k installs · Aug 26

Release cadence

Actively maintained
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.

10

releases in the last 12 months

2mo ago

latest release · v7.8.0

18

tagged releases on record

Recent releases

7.8.0 · 2mo ago7.7.11 · 3mo ago7.7.10 · 4mo ago7.7.9 · 4mo ago7.7.8 · 5mo ago7.7.7 · 6mo ago7.7.6 · 6mo ago7.7.5 · 9mo ago7.7.4 · 10mo ago7.7.3 · 10mo ago7.7.2 · 1.4y ago7.7.1 · 1.8y ago7.7.0 · 1.8y ago7.6.8 · 1.8y ago

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 81% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v7.8 81%
v7.7 17%
Older / other versions 1.7%

Estimated active installs

The public count shows “1M+”. Our estimate pins where the real number sits.

modeled estimate
1M–2M ≈1.5M

Modeled within the band wp.org reports; tightens as we track daily.

Install history · since 2015-06-01 · 1,500 observations

1MInstalls · 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.

Details

Version
7.8.1
Last updated
13d ago
Added
2014-11-25 · 11 yrs old
Requires WP
5.5.1
Tested up to
7.0.4
Requires PHP
7.0

Recent review vibe

read from the latest 12 reviews to 2026-06-17
Mixed CompatibilityBroken updatesFeature requestsPraisePerformance

Reviewers split between genuine praise for speed gains and quick support fixes, and real frustration over plugin conflicts, unwanted installs, and messy incremental updates.

Recent reviews

All reviews on wp.org ↗
  1. marjoriecurtis
    2mo ago

    Edit: Received an email from customer support to contact them to resolve. I was a bit skeptical that I was going to be stuck with the issue. However, after a few minutes the conflict between the 2 plugins was discovered and within a few minutes a solution was found. Up until about 6 months ago, I would have given the plugin 5 stars and worked well. However, it started creating problems with the plugin Amelia that I use for booking appointments. When both plugins are active, the booking options don’t function and customers are unable to use the website. I kept hoping that updates would fix the issue, but that haven’t. This topic was modified 1 month ago by marjoriecurtis. Reason: issue corrected

    Read on wp.org ↗
  2. aegei
    3mo ago

    Great performance plugin. Improved Core Web Vitals and reduced CLS without heavy tweaking.

    Read on wp.org ↗
  3. allop24
    3mo ago

    I started using the plugin according to its recommendations. Once I started analyzing with Lighthouse I realized the program was delaying load speeds. Piece by piece I removed functions and now I think I am better off without it.

    Read on wp.org ↗
  4. Lawson
    3mo ago

    We don’t like when a plugin installs other plugins on our website without our consent. When a program does that it’s called a trojan horse. What’s worse is that siteground installed an AI plugin on our website, literally the least secure, highest risk and fastest growing (which also means least stable) tech that exists today. Plugins have backdoor access to our website, to our customers and everything that we sell, therefore they need to be secure, stable & reliable and ideally run from the same server as our website. The trouble with AI tech is we don’t know who all of the stakeholders are and we aren’t given sufficient reassurance of security.

    Read on wp.org ↗
  5. jamesrlapalm
    4mo ago

    The plugin works pretty well, but the fact that auto cache purge is not triggered by category image changes is a huge con. This means that I have to give our shop manager admin level access so she can have access to the manual cache purge link. This topic was modified 2 months, 1 week ago by jamesrlapalm. Reason: Change rating

    Read on wp.org ↗
  6. manhattancenters
    4mo ago

    They just fixed some goofy setting for emails now 2 days later other stuff. How about release all at once??? Getting just as bad as some other developer not testing their products. This topic was modified 2 months, 1 week ago by manhattancenters.

    Read on wp.org ↗
  7. Angie Wood
    4mo ago

    If I use this, it always breaks my site, I check it regally but always end up turning it off.

    Read on wp.org ↗
  8. Tassoman
    5mo ago

    A quite disappointing open source contribution

    Read on wp.org ↗

Latest updates

via wp.org changelog

Recent releases and news for this plugin

  1. Version 7.8.0 Release Date: Jun 22th, 2026 CSS combination and minification improvements JS combination and minification improvements Cache flushing improvements File Caching improvements 7.8.0
  2. Version 7.7.11 Release Date: May 7th, 2026 File Caching improvements Lazy Loading improvements CSS minifier improvements 7.7.11
  3. Version 7.7.10 Release Date: May 5th, 2026 Email Service improvements 7.7.10
  4. Version 7.7.9 Release Date: Apr 15th, 2026 Security improvements 7.7.9
  5. Version 7.7.8 Release Date: Apr 7th, 2026 Memcache improvements WP Cli improvements Layout improvements Heartbeat compatibility improvements 7.7.8
  6. Version 7.7.7 Release Date: Feb 16th, 2026 Version bump 7.7.7

Known vulnerabilities

via Wordfence Intelligence

3 disclosed vulnerabilities on record for this plugin, all fixed in the current version. Sites on older versions stay exposed until they update.

  1. 2026-08-18 CVE-2026-15421 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 7.8.0 Patched in 7.8.1
  2. 2024-04-15 CVE-2024-32532 Missing Authorization Affects <= 7.4.6 Patched in 7.5.0
  3. 2019-03-14 CVE-2019-25217 Missing Authorization Affects < 5.0.13 Patched in 5.0.13

Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.

CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0

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 29 languages, 13 at 90% or more

Arabic 100%
Dutch 100%
Dutch (Formal) 100%
English (UK) 100%
French (France) 100%
German 100%
Italian 100%
Japanese 100%
Spanish (Argentina) 100%
Spanish (Chile) 100%
Spanish (Mexico) 100%
Spanish (Spain) 100%
Russian 99%
Spanish (Colombia) 83%
Spanish (Ecuador) 74%
Spanish (Venezuela) 74%
Swedish 44%
German (Formal) 21%
Bulgarian 15%
Catalan 13%
English (Canada) 12%
English (Australia) 10%
English (New Zealand) 10%
Dutch (Belgium) 8%

Plus 5 more locales with partial translations.

Growth timeline

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

No tier crossings observed yet.

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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<iframe src="https://plugins.wpmayor.com/embed/sg-cachepress" width="480" height="300" style="border:0" loading="lazy" title="Speed Optimizer – The All-In-One Performance-Boosting Plugin — Plugin Pulse"></iframe>
Preview card ↗

Speed Optimizer – The All-In-One Performance-Boosting Plugin: 1M+ active installs, 4.2★ (639 reviews). Plugin Pulse (WP Mayor), as of 2026-08-25. https://plugins.wpmayor.com/plugin/sg-cachepress