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SpamJam – Anti-Spam Protection for Comments & Forms icon
Actively maintained Tested with WP 7.1 #8 in comment spam

SpamJam – Anti-Spam Protection for Comments & Forms

Block comment and form spam without CAPTCHAs. Lightweight honeypot protection works automatically and keeps real visitors moving.

Active installs100+100+ tier
Downloads · 30d227▼ -6.6% vs prev. 30d
Rating—0 reviews
Health score68/100Good
All-time downloads4KSince Jul 2022
Support resolved—No recent threads
RequiresWP 6.2PHP 7.4+
Downloads · 7d45▼ -19.6% week over week
Our verdict

Solid choice

SpamJam is a solid plugin choice in 2026, with a few things worth checking first. It runs on 100+ sites and was last updated 2 weeks ago, and scores 68/100 on our health check.

  • Actively developed — last update 2 weeks ago
  • Tested with the latest WordPress (7.1)
  • Small user base (100+ active installs)
  • Very few reviews so far

How does it stack up?

Side-by-side on installs, updates, ratings & support

Daily downloads

81624Jul 1Aug 14Sep 28
Yesterday4
Daily average (1y)5
Peak day163Oct 6, 2025
Last 12 months1.7K

Download spikes usually follow a new release — each site that auto-updates counts as a download.

Rankings

Where SpamJam stands today

WordPress.org search rankings

Live position in the plugin search, top 100
KeywordPositionCompeting pluginsCategory
comment spam >100 1,576 Best comment spam plugins →
honeypot >100 774 Best honeypot plugins →
registration spam >100 984 Best registration spam plugins →
security >100 10,000 Best security plugins →
spam protection #99 1,510 Best spam protection plugins →

Version adoption

Share of active sites per release.

  • 1.883.5%
  • 3.216.5%

About SpamJam

From the official readme · v3.2.0

Description

Spam should not create more work for you—or more friction for your visitors.

SpamJam quietly stops automated comment spam with layered, on-site checks. There are no CAPTCHAs to solve, no puzzles to frustrate readers, and no complicated setup before protection begins.

Install it, activate it, and get back to running your site.

Why Site Owners Choose SpamJam

🚫 Less Spam to Moderate – Catch automated submissions before they clutter your comment queue.
👤 No Friction for Real People – Visitors can comment without image grids, challenges, or extra verification steps.
⚡ Protected from Activation – Core comment protection is enabled by default, with sensible settings already in place.
🧠 Fewer False Positives – Multiple signals work together; suspicious edge cases can be held for review instead of being discarded.
🩶 Lightweight by Design – Focused checks run where they are needed, without loading a heavy front-end framework.
🔒 Privacy-Conscious Detection – Core comment analysis runs on your WordPress site rather than sending comment content to a remote spam-scoring service.

Free Comment Protection

The free version gives blogs, publishers, and WooCommerce stores a strong first line of defense:

  • Per-site salted honeypot – An invisible, site-specific trap makes generic bot scripts easier to identify.
  • Submission timing check – Detects forms submitted faster than a person could reasonably complete them.
  • Weighted spam scoring – Combines form, timing, token, and referrer signals instead of relying on one fragile test.
  • Safer moderation path – Suspicious submissions below the blocking threshold can be held for review.
  • Secure form validation – Nonces and time-boxed HMAC tokens help verify legitimate comment submissions.
  • Built-in keyword blocklist – Stops common comment-spam patterns.
  • WooCommerce product reviews – Protects review forms and declares compatibility with WooCommerce HPOS.
  • No-JavaScript fallback – Visitors with JavaScript disabled are not automatically hard-blocked.
  • Dashboard statistics – See the protection working from your WordPress admin.

No account or API key is required to start protecting comments.

Go Beyond Comments with SpamJam Pro

When spam reaches registrations, contact forms, or a high-traffic site, SpamJam Pro adds the control and visibility you need:

  • Protection for popular form plugins – Cover Contact Form 7, WPForms, Gravity Forms, Elementor Forms, Fluent Forms, Formidable Forms, Ninja Forms, and WooCommerce registration.
  • Actionable spam inbox – Search and filter events, review false positives, restore recoverable comments, allow trusted senders, and use bulk actions.
  • Source-aware rules – Allow, moderate, block, or discard submissions using conditions tailored to each protected source.
  • Registration protection – Add honeypot checks and email confirmation to WordPress registrations.
  • Flood and content controls – Set rate limits, minimum comment length, maximum links, and your own blocked terms.
  • Targeted blocking – Block configured IP addresses, email addresses, domains, or countries while allowlisting trusted senders.
  • Reports and analytics – Understand trends, sources, repeat signals, and false positives; receive weekly summaries or export PDF reports.
  • Professional site tools – Add an automatically updated extended blocklist, multisite synchronization, and white-label controls.

Every Pro feature is included. Choose a license based only on the number of sites you manage from SpamJam’s Account screen in your WordPress dashboard.

Built for the Sites Spam Targets

SpamJam is a practical fit for:

  • Blogs and publications with open comments
  • WooCommerce stores collecting product reviews
  • Membership and community sites accepting registrations
  • Lead-generation sites using popular form plugins
  • Agencies managing protection across multiple WordPress sites

How SpamJam Stops Bots

SpamJam looks for the patterns automated submissions leave behind:

  1. A site-specific hidden field catches bots that fill every input.
  2. A signed timestamp identifies implausibly fast submissions.
  3. Secure tokens and referrer checks test whether the request came through the expected form flow.
  4. A built-in blocklist catches common spam content.
  5. A weighted scoring engine combines those signals and decides whether to allow, hold, or block the submission.

Real visitors keep the familiar WordPress comment experience. The protection stays in the background.

Privacy & Data Handling

Core comment detection is performed on your site and does not require a remote content-scoring service. SpamJam stores minimal blocked-event metadata locally for dashboard statistics and removes old events after the configured retention period. Personal recovery data is off by default; if you enable it, SpamJam excludes passwords, nonces, security tokens, CAPTCHA values, and CSRF fields from recoverable form data.

Some optional licensing, update, geographic blocking, and premium blocklist features connect to external services when used. Review your site’s privacy obligations and enabled settings as you would with any WordPress plugin.

Installation

  1. In WordPress, go to Plugins > Add New.
  2. Search for SpamJam.
  3. Click Install Now, then Activate.
  4. Your comment forms are protected immediately. Open SpamJam in the admin menu to review statistics or adjust settings.

You can also upload the plugin ZIP from Plugins > Add New > Upload Plugin.

Frequently asked questions

Does SpamJam work immediately after activation?

Yes. Core comment protection is enabled by default with sensible settings. You can fine-tune it from the SpamJam admin screen, but you do not need to configure an API key or build rules before getting protection.

Will this slow down my site?

SpamJam is designed to stay focused and load its comment-protection script only on pages where comments are open. It has no jQuery dependency, and premium feature files load conditionally when their features are enabled.

Will my users see captchas?

No. SpamJam’s core protection uses hidden traps, secure tokens, timing, and request signals instead of CAPTCHA challenges.

Does this work with my theme?

SpamJam works with standard WordPress comment forms and includes a fallback selector for themes that use a custom form ID. A developer filter is available for unusual comment-form markup.

Is this compatible with WooCommerce?

Yes. The free version protects WooCommerce product review forms and declares compatibility with High-Performance Order Storage (HPOS). SpamJam Pro can also protect WooCommerce account registration.

What’s the difference between Free and Pro?

Free focuses on automatic comment and product-review protection. SpamJam Pro adds registration and third-party form coverage, custom rules, an actionable spam inbox, targeted blocking, deeper analytics, reporting, multisite synchronization, and white labeling. Every Pro license includes the complete feature set; licenses differ only by the number of sites covered.

How does geographic blocking work?

SpamJam Pro can block comments from selected country codes. When enabled, SpamJam uses an external IP geolocation lookup and caches the result to reduce repeat requests.

What is rate limiting?

Rate limiting caps how many comment submissions one IP address can make during a configurable period. It helps contain bursts without changing the experience for ordinary commenters.

Can I see what spam was blocked?

SpamJam Pro adds a searchable inbox for blocked events, reasons, sources, and review status. You can configure retention and choose whether to keep the minimum recovery data needed to restore a false-positive comment.

Does this work with other anti-spam plugins?

It may, but running multiple plugins that modify or validate the same comment form can create duplicate checks or conflicts. Test the combination on a staging site and avoid overlapping protection where possible.

Will SpamJam block legitimate comments?

No anti-spam system can promise zero false positives. SpamJam reduces the risk by combining several signals and holding suspicious edge cases for moderation when appropriate. SpamJam Pro adds false-positive review and recovery tools.

Do you offer support?

Free users can use the WordPress.org support forum. SpamJam Pro customers can contact priority support.

Is my data sent to third parties?

Core comment detection runs locally and does not require sending comment content to a remote scoring API. Optional features may connect to external services, and optional logs are stored in your WordPress database. See the Privacy & Data Handling section above and assess the settings you enable for your own privacy requirements.

Changelog

Faster queries, safer exports and recovery, privacy-first event logging, hardened registration confirmation, and more consistent admin artwork.

3.2.0 – 2026-09-12

  • Performance – Reduced database work with cached dashboard analytics, consolidated reporting aggregates, index-friendly inbox filters, and deferred log-table repair checks.
  • Performance – Replaced per-item Spam Inbox reads and mutations with bounded, prepared batch queries and batched allowlist updates.
  • Performance – Optimized approved-commenter detection to stop after retrieving the first matching comment ID.
  • Moderation – Added a secure Activity action to move existing WordPress spam comments to Trash in bounded batches.
  • UI – Replaced emoji admin marks with consistent shield and Dashicons artwork, corrected icon asset paths, and refined title and autosave-notice spacing.
  • Quality – Updated development tooling and expanded regression coverage for query performance, moderation actions, and admin presentation.
  • Security – Neutralized spreadsheet formulas in CSV exports, rendered REST errors as text, and made comment restoration idempotent.
  • Privacy – Made recovery data opt-in, omitted personal fields from metadata-only logs, and enforced retention cleanup for all editions.
  • Reliability – Hardened registration confirmation, added IPv6 CIDR matching and optional-extension fallbacks, bounded remote blocklist downloads, and corrected MySQL-compatible log schema definitions.

Full changelog on WordPress.org →

For developers

Is this your plugin? Show off the numbers.

Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.

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Best SpamJam alternatives

All comment spam plugins →
Alternatives
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FAQ

SpamJam: quick answers

Straight answers, pulled from live WordPress.org data.

Live data from WordPress.org · checked Sep 29, 2026

Is SpamJam free?

Yes. SpamJam is free to download and use from the official WordPress.org plugin directory.

Is SpamJam safe to use in 2026?

SpamJam is a solid plugin choice in 2026, with a few things worth checking first. It runs on 100+ sites and was last updated 2 weeks ago, and scores 68/100 on our health check.

How many websites use SpamJam?

SpamJam is active on 100+ WordPress websites and has been downloaded 4,024 times since it launched in July 2022. It was downloaded 227 times in the last 30 days.

Does SpamJam work with WordPress 7.1?

Yes. The developer has tested SpamJam up to WordPress 7.1.2, the latest release. It requires WordPress 6.2 or newer.

What PHP version does SpamJam need?

SpamJam requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.

When was SpamJam last updated?

The latest version, 3.2.0, was released on September 12, 2026 (2 weeks ago).

Who makes SpamJam?

SpamJam is developed and maintained by Matt Biscay.

What are the best alternatives to SpamJam?

The most popular alternatives to SpamJam are WP Armour (400K+ installs), Honeypot Anti-Spam (10K+ installs) and ActiveLayer Anti-Spam: Spam… (9K+ installs).

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