WPMU Block Spam By Math
v1.3by jwpegram · updated 16 years ago
This plugin protects your WPMU signup process against spambots with a simple math question.
- Rank
- #45,654
- Down3,338 vs yesterday
- Active installs (est.)
- ≈ 12
- 10+ reported · High
- Total downloads
- 4.8K
- 4,817 all-time
- Rating
- –
- 0 reviews
- Support resolved
- –
- 0 of 0 threads, last 2 months
WPMU Block Spam By Math at a glance
WPMU Block Spam By Math is a WordPress plugin by jwpegram with 10+ active installs, the #45,654 most popular plugin on WordPress.org. On a typical day it’s downloaded about 1 time, 50% fewer than the month before. It has no reviews yet. Version 1.3 came out on Jan 10, 2011, more than 15 years ago. It is tested up to WordPress 3.0.5. Among the 25 plugins tagged “wordpress MU”, it ranks #15. It was first released in 2010.
Chart time range
Applies to every chart below. History from Oct 11, 2026, 30 days.
Downloads over time
Download stats32 downloads · the last 30 days
View as table
| Date | WPMU Block Spam By Math |
|---|---|
| Nov 5, 2026 | 0 |
| Nov 4, 2026 | 2 |
| Nov 3, 2026 | 1 |
| Nov 2, 2026 | 1 |
| Nov 1, 2026 | 2 |
| Oct 31, 2026 | 0 |
| Oct 30, 2026 | 0 |
| Oct 29, 2026 | 0 |
| Oct 28, 2026 | 1 |
| Oct 27, 2026 | 1 |
| Oct 26, 2026 | 3 |
| Oct 25, 2026 | 2 |
| Oct 24, 2026 | 1 |
| Oct 23, 2026 | 1 |
| Oct 22, 2026 | 2 |
| Oct 21, 2026 | 0 |
| Oct 20, 2026 | 1 |
| Oct 19, 2026 | 3 |
| Oct 18, 2026 | 2 |
| Oct 17, 2026 | 2 |
| Oct 16, 2026 | 2 |
| Oct 15, 2026 | 1 |
| Oct 14, 2026 | 0 |
| Oct 13, 2026 | 2 |
| Oct 12, 2026 | 0 |
| Oct 11, 2026 | 2 |
Unusual spikes are usually updates, not new installs.
Estimated installs
≈ 12 · -7.7% in the last 30 days
View as table
| Date | Estimated installs |
|---|---|
| Nov 10, 2026 | 12 |
| Nov 9, 2026 | 14 |
| Nov 8, 2026 | 13 |
| Nov 7, 2026 | 14 |
| Nov 5, 2026 | 15 |
| Nov 4, 2026 | 15 |
| Nov 3, 2026 | 15 |
| Nov 2, 2026 | 12 |
| Nov 1, 2026 | 12 |
| Oct 31, 2026 | 12 |
| Oct 30, 2026 | 14 |
| Oct 29, 2026 | 14 |
| Oct 28, 2026 | 13 |
Rank over time
#45,654 · down 3,668 in the last 30 days
View as table
| Date | Daily snapshot |
|---|---|
| Nov 10, 2026 | #45,654 |
| Nov 9, 2026 | #42,316 |
| Nov 8, 2026 | #42,277 |
| Nov 7, 2026 | #38,775 |
| Nov 3, 2026 | #35,311 |
| Oct 31, 2026 | #47,503 |
| Oct 28, 2026 | #41,986 |
Growth %
Average -0.61% a day in the last 30 days
View as table
| Date | Growth |
|---|---|
| Nov 10, 2026 | -14.29% |
| Nov 9, 2026 | +7.69% |
| Nov 8, 2026 | -7.14% |
| Nov 7, 2026 | -3.33% |
| Nov 5, 2026 | 0.00% |
| Nov 4, 2026 | 0.00% |
| Nov 3, 2026 | +25.00% |
| Nov 2, 2026 | 0.00% |
| Nov 1, 2026 | 0.00% |
| Oct 31, 2026 | -14.29% |
| Oct 30, 2026 | 0.00% |
| Oct 29, 2026 | +7.69% |
Active installs band
10+ on WordPress.org
View as table
| Date | Daily snapshot |
|---|---|
| Nov 10, 2026 | 10+ |
| Nov 9, 2026 | 10+ |
| Nov 8, 2026 | 10+ |
| Nov 7, 2026 | 10+ |
| Nov 6, 2026 | 10+ |
| Nov 5, 2026 | 10+ |
| Nov 4, 2026 | 10+ |
| Nov 3, 2026 | 10+ |
| Nov 2, 2026 | 10+ |
| Nov 1, 2026 | 10+ |
| Oct 31, 2026 | 10+ |
| Oct 30, 2026 | 10+ |
| Oct 29, 2026 | 10+ |
| Oct 28, 2026 | 10+ |
| Oct 27, 2026 | 10+ |
Search rankings
Where it appears in WordPress.org search for the searches you track, checked every day.
See where WPMU Block Spam By Math ranks in search
Track this plugin to check its position for the searches you choose, daily, with an alert when it moves.
Change log
From our daily snapshot of WordPress.orgNo changes yet. When this plugin's name, short description, tags, “Tested up to” or version change, they show here with what happened to its rank next.
Versions in use
Share of active installs on each published version, from WordPress.org.
- v1.3100%
Requirements & info
Version history- Version
- 1.3
- Requires WordPress
- –
- Tested up to
- 3.0.5
- Requires PHP
- –
- First released
- Jan 4, 2010
- Last updated
- Jan 10, 2011
- Releases, last 12 months
- …
Questions about WPMU Block Spam By Math
How many websites use WPMU Block Spam By Math?
WPMU Block Spam By Math is active on 10+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #45,654 most popular plugin on WordPress.org.
How many times has WPMU Block Spam By Math been downloaded?
4,817 times in total since 2010. On a typical day it’s downloaded about 1 times. See download stats
When was WPMU Block Spam By Math last updated?
Version 1.3 came out on Jan 10, 2011 (15 years ago).
Is WPMU Block Spam By Math compatible with the latest WordPress?
WPMU Block Spam By Math’s readme says it’s tested up to WordPress 3.0.5, while the current version is 7.1. That doesn’t mean it breaks, but its author hasn’t confirmed it works with the latest releases.
Is WPMU Block Spam By Math still maintained?
Its last release was 15 years ago, so it may no longer be actively maintained. No support threads were opened in the last two months.
What rating does WPMU Block Spam By Math have?
No one has reviewed WPMU Block Spam By Math on WordPress.org yet.
What are the best alternatives to WPMU Block Spam By Math?
The plugins most like WPMU Block Spam By Math, by the tags they share, are Zero Spam for WordPress (20K+), Akismet Anti-spam (5M+) and Anti-Spam, Spam FireWall by CleanTalk (200K+). Compare all alternatives
Compare with competitors
Add up to 1 competitor. No account needed.
| Metric | |
|---|---|
| Estimated installs | ≈ 12 |
| Reported installs | 10+ |
| Rating | – |
| Reviews | 0 |
| Total downloads | 4.8K |
| Author | jwpegram |
| First released | Jan 4, 2010 |
| Version | 1.3 |
| Requires WP | – |
| Requires PHP | – |
| Last updated | Jan 10, 2011 |
Alternatives to WPMU Block Spam By Math
Compare all alternativesPopular plugins with the same tags, the most in common first.
Zero Spam for WordPress
by Highfivery Studio
Free anti-spam for WordPress comments, logins, registrations and forms. No captchas, no moderation queue. Blocks bots before they post.
- Rank
- #1,201
- Installs
- 20K+
- 4.1

Akismet Anti-spam
by Automattic
The best anti-spam protection to block spam comments and spam in a contact form. The most trusted antispam solution for WordPress and WooCommerce.
- Rank
- #8
- Installs
- 5M+
- 4.7

Anti-Spam, Spam FireWall by CleanTalk
by CleanTalk Inc
Advanced antispam for comments, registrations & contact forms. No CAPTCHA, plus email validation and honeypot. We catch spam others miss!
- Rank
- #239
- Installs
- 200K+
- 4.8

Gravity Forms Zero Spam
by GravityKit
Block form spam in Gravity Forms with an invisible token check, email rejection rules, and optional AI review. No CAPTCHAs for your visitors.
- Rank
- #453
- Installs
- 100K+
- 4.3

Spam Protection
by yonifre
Blocks spam the moment you activate it. No CAPTCHA, no setup, no API key. Multi-Layer. Just install and forget.
- Rank
- #990
- Installs
- 30K+
- 4.7
WPBruiser Security
by WPZOOM
Security and anti-spam without CAPTCHA. Blocks bots on forms, comments and logins, limits login attempts and hardens WordPress. No outside service.
- Rank
- #1,788
- Installs
- 10K+
- 4.6
Side by side:WPMU Block Spam By Math vs Zero Spam for WordPressWPMU Block Spam By Math vs Akismet Anti-spamWPMU Block Spam By Math vs Anti-Spam, Spam FireWall by CleanTalk
More by jwpegram
See everything by jwpegramOther plugins from this author in our catalog.