Plugin Pulse
← Pulse

SilentShield – Captcha & Anti-Spam for WordPress (CF7, WPForms, Elementor, WooCommerce)

by Forge12 Interactive GmbH · Forms

Also makes 4 other plugins · 11.9K+ installs across the portfolio →

SilentShield – the invisible shield against spam. Spam is the weed of the internet. It clogs your forms, steals your time, and corrupts your data.

How scoring works →
95 Health · A
Maintenance 100/100
Rating quality 86/100
Support 100/100

95 health vs 63 average across 1,679 Forms 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.

96 / 100

Excellent listing optimization

Well tuned across the board

Update recency 100/100
WP compatibility 100/100
Rating quality 80/100
Listing tuning 100/100
Support resolution 100/100

Daily downloads

Since 2022-10-05 · 1,425 days · wp.org + Plugin Pulse archive

+658% vs prior 30d
3.3KDownloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

31.9K

now · peak 32.0K

32K30d 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

SilentShield · #1861 you CF7 Apps · #161 Contact Form 7 Text · #5349 Spam protection, Hon · #240

Rating trend

Star average over time · dips mark rough releases

4.7Stars · 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.

3.2Kper 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.

36

releases in the last 12 months

2mo ago

latest release · v2.7.6

106

tagged releases on record

Recent releases

2.7.6 · 2mo ago2.7.5 · 2mo ago2.7.3 · 3mo ago2.6.8 · 5mo ago2.6.7 · 5mo ago2.6.6 · 5mo ago2.6.5 · 5mo ago2.3.5 · 6mo ago2.3.4 · 6mo ago2.3.3 · 6mo ago2.3.2 · 6mo ago2.3.1 · 7mo ago2.3.0 · 7mo ago2.2.61 · 8mo 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.

v2.7 62%
v2.2 13%
Older / other versions 25%

Estimated active installs

The public count shows “10K+”. Our estimate pins where the real number sits.

tracked estimate
10K–20K ≈17K

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

Install history · since 2022-07-01 · 1,423 observations

10KInstalls · 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. The recent download trend is too spiky to read.

Details

Version
2.15.4
Last updated
2d ago
Added
2021-10-11 · 4 yrs old
Requires WP
5.2
Tested up to
7.0.4
Requires PHP
7.4

Recent reviews

All reviews on wp.org ↗
  1. uwejansen
    4mo ago

    I have been using this plugin with Contact Form 7 and overall it works well. The setup is straightforward, and it helps reduce spam submissions without making the form too complicated for visitors. It integrates nicely with Contact Form 7 and does what it is supposed to do. For a free plugin, it is a very useful solution. I am giving 4 stars because there is still some room for improvement, for example in terms of documentation or additional configuration options. But overall, it is a solid and helpful plugin.

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

    I use this plugin on ALL my client’s websites because it is easy to set up and it works incredibly well in protecting my sites 😀

    Read on wp.org ↗
  3. Nico Demus
    7mo ago

    Easy to use and does exactly what it should. Not overloaded, pretty easy to setup. Awesome ! Works like a charm with Elementor !

    Read on wp.org ↗
  4. lyndzer
    8mo ago

    This is FINALLY the solution I was looking for. Thousands of spam emails from my website have been a plague. Now – with this amazing plug-in – it has STOPPED. My gratitude is immense. A real game changer!!

    Read on wp.org ↗
  5. martinpelletier
    10mo ago

    Blocks login even if login protection is not checked in dashboard. Moreover, the right answer does not allow to login. You get locked out your own WP site.

    Read on wp.org ↗
  6. KnallBlauMedia
    11mo ago

    I’m using this plugin for 1-2 years and it’s the best solution yet.

    Read on wp.org ↗
  7. pluggedindev
    11mo ago

    The support team is next level! Jumped in immediately and resolved the issue quickly. The plugin works great for my client’s gravity form. Highly recommend and will use again in the future.

    Read on wp.org ↗
  8. dbinda
    11mo ago

    As webmaster, I always use this great plugin in all my websites to protect any contact form (using CF7) and also the WordPress administration login page. Now, my websites are safer, and my customers are not bothered any more. Finally, the support is excellent.

    Read on wp.org ↗

Latest updates

via wp.org changelog

Recent releases and news for this plugin

  1. Version 2.7.6 Security [Audio Captcha]: The accessibility audio endpoint ( /captcha/audio ) no longer returns the captcha solution for math challenges. The math answer was never used by the frontend (math formulas are read aloud direc 2.7.6
  2. Version 2.7.5 Fix [Forms]: Enabling WordPress Comments, JetFormBuilder or Ultimate Member protection no longer attaches the captcha submit interceptor to unrelated forms — most notably the WooCommerce “Add to cart” form ( form.cart ), 2.7.5
  3. Version 2.7.4 New [Analytics]: When the SilentShield API is active, the Analytics page now shows an “API Exclusive Blocks” section with measured numbers — how many spam submissions the API blocked that none of the local rules (Captcha 2.7.4
  4. Version 2.7.3 Fix [WooCommerce Checkout]: The JavaScript protection could wrongly reject legitimate checkouts (“JavaScript protection not correct”) and require several clicks on “Place order”. The captcha and its timing fields ( js_st 2.7.3
  5. Version 2.7.2 Fix [Forms]: Comments and other default WordPress forms now set the JavaScript timing field ( js_end_time ) at the moment of submission instead of on page load. Previously the timestamp was pre-filled during init, making 2.7.2
  6. Version 2.7.1 Improved [Translations]: French (fr_FR) translations overhauled — replaced anglicisms with correct French terminology throughout (“spam” → “indésirables”, “bots” → “robots”, “plan” → “offre”, “plugin” → “extension”, “clé 2.7.1

Known vulnerabilities

via Wordfence Intelligence

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

  1. 2023-10-03 CVE-2023-45009 Guessable CAPTCHA Affects <= 1.11.3 Patched in 1.11.4

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 4 languages, 1 at 90% or more

French (France) 100%
Persian 9%
German (Formal) 8%
German 2%

Growth timeline

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

  1. 2025-12-02 9K+ → 10K+ up after 2 days in tier
  2. 2025-11-30 10K+ → 9K+ down after 1 days in tier
  3. 2025-11-29 9K+ → 10K+ up after 245 days in tier
  4. 2025-03-29 8K+ → 9K+ up after 114 days in tier
  5. 2024-12-05 7K+ → 8K+ up after 127 days in tier
  6. 2024-07-31 6K+ → 7K+ up after 1 days in tier
  7. 2024-07-30 7K+ → 6K+ down after 1 days in tier
  8. 2024-07-29 6K+ → 7K+ up after 5 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).

Compare head to head →

Embed this report card

Drop a live Pulse card for SilentShield – Captcha & Anti-Spam for WordPress (CF7, WPForms, Elementor, WooCommerce) into a readme, a review or a deck. It updates itself.

<iframe src="https://plugins.wpmayor.com/embed/captcha-for-contact-form-7" width="480" height="300" style="border:0" loading="lazy" title="SilentShield – Captcha & Anti-Spam for WordPress (CF7, WPForms, Elementor, WooCommerce) — Plugin Pulse"></iframe>
Preview card ↗

SilentShield – Captcha & Anti-Spam for WordPress (CF7, WPForms, Elementor, WooCommerce): 10K+ active installs, 4.7★ (21 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/captcha-for-contact-form-7