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Really Simple Security – Simple and Performant Security (formerly Really Simple SSL)

by Really Simple Plugins · Security

Also makes 3 other plugins · 3.1M+ installs across the portfolio →

Easily improve site security with WordPress Hardening, Two-Factor Authentication (2FA), Login Protection, Vulnerability Detection and SSL certificate.

How scoring works →
100 Health · A
Maintenance 100/100
Rating quality 99/100
Support 100/100

100 health vs 64 average across 997 Security 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.

100 / 100

Excellent listing optimization

Well tuned across the board

Update recency 100/100
WP compatibility 100/100
Rating quality 98/100
Listing tuning 100/100
Support resolution 100/100

Daily downloads

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

-0% vs prior 30d
19.6KDownloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

1.7M

now · peak 5.6M

1.68M30d 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

Really Simple Securi · #17 you WebAuthn Provider fo · #5388 Wordfence Security · #11 Hostinger Tools · #20

Rating trend

Star average over time · dips mark rough releases

4.9Stars · 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.

560per 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.

21

releases in the last 12 months

2mo ago

latest release · v9.6.1

25

tagged releases on record

Recent releases

9.6.1 · 2mo ago9.6.0 · 2mo ago9.5.11 · 4mo ago9.5.10.1 · 4mo ago9.5.10 · 4mo ago9.5.9 · 5mo ago9.5.8 · 6mo ago9.5.7 · 7mo ago9.5.6 · 7mo ago9.5.5 · 8mo ago9.5.4 · 9mo ago9.5.3.2 · 9mo ago9.5.3.1 · 10mo ago9.5.3 · 10mo ago

What its installed base runs

via wordpress.org

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

v9.6 35%
v9.5 26%
Older / other versions 38%

Estimated active installs

The public count shows “3M+”. Our estimate pins where the real number sits.

tracked estimate
3M–4M ≈3.6M

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

Install history · since 2015-04-14 · 1,486 observations

3MInstalls · 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.

high confidence

Est. annual revenue

≈$3.3M range $1.1M–$11M

Est. acquisition value

≈$9.8M range $2.2M–$44M

A large install base, a clear pro tier and a steady trend. As reliable as an outside estimate gets. The range spans more than 10x because wp.org publishes install counts as broad bands, and conversion and price compound on top. Read the midpoint as an order of magnitude, not a valuation.

How we estimate this

Assumptions

  • Free → paid conversion. 0.5%–2% of active installs pay for the pro tier. Typical for freemium WordPress plugins; the real rate varies a lot by product. Past 1M installs we taper the rate down: a giant free plugin’s long tail converts far worse.
  • Annual price per customer. $99–$199 a year, typical for Security plugins rather than this plugin's own pricing.
  • Acquisition multiple. 2x–4x annual revenue, the going range for small WordPress-plugin businesses, the typical range for a steady plugin.
  • Install base. 3M–4M active installs, from our install estimate (wp.org only publishes the floor).

Inputs

Active installs
3M–4M
Category
Security
Pro tier
detected (known freemium plugin with a public paid tier)
Download trend
steady (30d downloads flat vs prior 30d)
Reviews
8,861
Last updated
6 days ago

Revenue is installs × conversion × price; value is revenue × a typical acquisition multiple. Every factor is an assumption band, so the output is a wide range on purpose. If you're buying or selling, treat this as a starting point for due diligence.

Details

Version
9.7.0
Last updated
6d ago
Added
2015-03-15 · 11 yrs old
Requires WP
6.6
Tested up to
7.1
Requires PHP
7.4

Recent review vibe

read from the latest 12 reviews to 2026-07-16
Positive PraiseCompatibilityPricing

Reviewers overwhelmingly praise the plugin as simple and effective, though one recent reviewer flagged non-functional IP/country blocking and a broken premium support widget in Brave.

Recent reviews

All reviews on wp.org ↗
  1. innovatedmedia
    1mo ago

    I’ve been using this plugin for years! It’s simple to use, and very intuitive, and it has truly made every website I have built and continue to manage so much easier. It saves me a lot of time doing things I used to have to do the long way. Highly recommend.

    Read on wp.org ↗
  2. minhtri4887
    1mo ago

    Công cụ tuyệt vời

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

    Worked well and it just works

    Read on wp.org ↗
  4. dome0013
    2mo ago

    it’s really simple

    Read on wp.org ↗
  5. zamzough
    2mo ago

    Easy to use, works well. Great !

    Read on wp.org ↗
  6. chaosheld
    3mo ago

    I hate to pay for plugins that simply don’t do the things they are advertising. Man, even the stupid “Premium Support” message box is running into an error when using! That is really bad. I mean if such basic thing doesn’t work in a standard browser like Brave, the rest can only be shit right? What is even worse is that the IP block and country block is not doing anything at all. What? I mean what is the purpose if it simply doesn’t do anything? I am adding IP addresses from bots out of my logs and imagine what …. the bots are still doing their litte scraping job for some suckers draining the internet. If that is one feature obviously not working how can I trust other features to work as expected?

    Read on wp.org ↗
  7. drhcweiss
    3mo ago

    Gott sei Dank über 200000 Spams abgeblockt! Vielen Dank! MglG doc This topic was modified 3 weeks, 5 days ago by drhcweiss.

    Read on wp.org ↗
  8. joluzalo
    3mo ago

    ¡Excelente plugin

    Read on wp.org ↗

Latest updates

via wp.org changelog

Recent releases and news for this plugin

  1. 2026-08-25 Version 9.8.0 Fixed: Other plugin installation now retrieves the download link correctly. Fixed: PHP 8.5 compatibility issues. Fixed: The 2FA grace period was not always handled correctly. Changed: REST API checks are faster and run o 9.8.0
  2. 2026-07-29 Version 9.7.0 Fixed: Alignment of the e-mail validation status icon. Fixed: Vulnerability data is included in uninstall cleanup. Changed: Removed an unused passkey log message. Changed: Updated the Other Plugins section in onboarding 9.7.0
  3. 2026-07-06 Version 9.6.1 Fixed: Alignment of the e-mail validation status icon. Fixed: Vulnerability data is included in uninstall cleanup. Changed: Updated translations to use the l10n PHP format. Changed: Updated the Other Plugins section in o 9.6.1
  4. 2026-06-16 Version 9.6.0 Fixed: 2FA grace period reminder emails could be sent unexpectedly. Fixed: Review notice is now correctly dismissed when pressing the X. Changed: Vulnerability details now load only for the plugin or theme being activate 9.6.0
  5. 2026-05-05 Version 9.5.11 Fixed: fatal error that could occur when a plugin uses admin_enqueue_scripts incorrectly. Fixed: a bug where the wrong settings value could be saved. 9.5.11
  6. 2026-04-29 Version 9.5.10.1 Fixed: Undefined variable during cron. Changed: Updated 2FA login flow to address inconsistent verification behavior. 9.5.10.1

Known vulnerabilities

via Wordfence Intelligence

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

  1. 2026-06-12 CVE-2026-8293 Improper Authentication Affects <= 9.5.10.0 Patched in 9.5.10.1
  2. 2026-06-03 CVE-2026-48970 Missing Authorization Affects <= 9.5.10 Patched in 9.5.10.1
  3. 2026-06-03 CVE-2026-48969 Missing Authorization Affects <= 9.5.9 Patched in 9.5.10
  4. 2026-03-15 CVE-2026-32461 Missing Authorization Affects <= 9.5.7 Patched in 9.5.8
  5. 2025-01-24 CVE-2025-24623 Cross-Site Request Forgery (CSRF) Affects <= 9.1.4 Patched in 9.2.0
  6. 2024-11-14 CVE-2024-10924 Authentication Bypass Using an Alternate Path or Channel Affects 9.0.0 - 9.1.1.1 Patched in 9.1.2
  7. 2024-04-16 CVE-2024-31229 Server-Side Request Forgery (SSRF) Affects <= 7.2.3 Patched in 8.0.0

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 7.0.1

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 64 languages, 40 at 90% or more

Bosnian 100%
Croatian 100%
Dutch 100%
Dutch (Belgium) 100%
Dutch (Formal) 100%
English (Australia) 100%
English (Canada) 100%
English (New Zealand) 100%
English (South Africa) 100%
English (UK) 100%
Finnish 100%
French (Belgium) 100%
French (Canada) 100%
French (France) 100%
German 100%
German (Austria) 100%
German (Switzerland) Informal 100%
Italian 100%
Korean 100%
Portuguese (Angola) 100%
Portuguese (Brazil) 100%
Portuguese (Portugal) 100%
Romanian 100%
Russian 100%

Plus 40 more locales with partial translations.

Growth timeline

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

  1. 2026-02-05 4M+ → 3M+ down after 5 days in tier
  2. 2026-01-31 3M+ → 4M+ up after 1 days in tier
  3. 2026-01-30 4M+ → 3M+ down after 570 days in tier
  4. 2024-07-09 5M+ → 4M+ 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 ↗

Really Simple Security – Simple and Performant Security (formerly Really Simple SSL): 3M+ active installs, 4.9★ (8,861 reviews). Plugin Pulse (WP Mayor), as of 2026-08-25. https://plugins.wpmayor.com/plugin/really-simple-ssl