Kama SpamBlock
by Timur Kamaev · Security
Also makes 4 other plugins · 19.1K+ installs across the portfolio →
Light and invisible protection against basic automated comment spam. Pings and trackbacks check for real backlinks.
Try it live opens a temporary test site in your browser, which can take about 20 seconds to load. Plugins that rely on outside services or a full server may not work completely there.
Health
A 90/100
no flags
Active installs
4K+
≈4.8K estimated
Momentum
+6%
downloads vs prior 30d
Biggest opportunity: Swap “bot”, “captcha” and “comments” for “anti scraping”, “backlinks” and “trackbacks”. “bot” isn't earning its slot: you're not in the first 24 results for its own search. “anti scraping” sits at #4 untagged, close enough for a declared tag to move it up. “captcha” isn't earning its slot: you're not in the first 24 results for its own search. “backlinks” sits at #7 untagged, close enough for a declared tag to move it up. “comments” isn't earning its slot: you're not in the first 24 results for its own search. “trackbacks” sits at #7 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
90 health vs 66 average across 1,775 Security plugins
Install conversion
How it's measured →5.9%
of downloads still active
At least 4K of 68.4K lifetime downloads are still running, above its category: the median Security plugin keeps 1.4%, across 1,059 plugins.
Downloads count every update, not just first installs, so older and more frequently released plugins read lower. Compare against other Security plugins, not across the directory. wp.org reports active installs as the bottom of a band, so the real rate is this or higher.
This plugin shipped 2 releases in the last 12 months, and every existing install that updated counted as another download. wp.org publishes no split between first installs and updates, so we show the raw rate rather than guess at one.
Details
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.
Excellent listing optimization
Well tuned across the board
Updated 98 days ago
Tested up to WordPress 7.0.8, the current branch or newer
5.0★ over 17 reviews, smoothed to 4.33★ and held back under 25 reviews
5 of 5 tags set · short description in place
Search visibility
How it's tracked →Directory searches this plugin turns up in, and which way each one is moving. WordPress.org publishes no history of search positions, so this starts the day we first tracked a keyword and never backfills.
42
Momentum
Mixed: one swing, the rest drifting
+0.1
Velocity
places per keyword, 27d
26%
Breadth
of keywords climbing, 27d
+0.2
Acceleration
recent half vs earlier
wp.org is where the directory puts the plugin for that search. On merit is where it would sit if results were ranked on rating, support and updates, without the install boost. The last column is how far the wp.org position moved, from our first reading in the last 90 days to the latest.
| Keyword | wp.org | On merit | wp.org move, 90 days |
|---|---|---|---|
| anti scraping | #4 | #2 | 0 |
| trackbacks | #7 | #12 | 0 |
| backlinks | #7 | #8 | 0 |
| pings | #8 | #8 | up 1 |
| trackback | #8 | #13 | down 1 |
| check backlinks | #5 | #8 | up 1 |
| invisible | #15 | #18 | 0 |
| antispam your tag | #21 | #18 | 0 |
| antispam protection | #24 | #19 | 0 |
| comments antispam | #17 | #18 | 0 |
| antispam for comments | #18 | #17 | 0 |
| bot your tag | Not in the top 24 | ||
| captcha your tag | Not in the top 24 | ||
| comments your tag | Not in the top 24 | ||
| spam your tag | Not in the top 24 | ||
38 searches this plugin appeared in over the last 90 days, 11 listed. 27 left out as unrelated or noise (years, numbers, stray words). 4 of its tags aren't in the top 24 for their own search.
What to do about it
- Swap “bot”, “captcha” and “comments” for “anti scraping”, “backlinks” and “trackbacks”. “bot” isn't earning its slot: you're not in the first 24 results for its own search. “anti scraping” sits at #4 untagged, close enough for a declared tag to move it up. “captcha” isn't earning its slot: you're not in the first 24 results for its own search. “backlinks” sits at #7 untagged, close enough for a declared tag to move it up. “comments” isn't earning its slot: you're not in the first 24 results for its own search. “trackbacks” sits at #7 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
Daily downloads
Since 5 Oct 2022 · 1,488 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 3.1K · peaks are release surges
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
Health trend
Composite health score, snapshotted daily
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.
Release cadence
Occasionally updatedHow often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.
2
releases in the last 12 months
3mo ago
latest release · v2.0.0 · 25 Jul 2026
7
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare 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.
Estimated active installs
The public count shows “4K+”. Our estimate pins where the real number sits.
Crossed into this band 3 months ago and the previous band took 15 months to cross, so the real count is still just under 5K.
Install history since 24 Sep 2015
Recent reviews
All reviews on wp.org ↗- ★★★★★ krivokoso8mo ago
Безусловно лучшее решение для борьбы со спамом на сайте, но когда ждать обновления?
Read on wp.org ↗ - ★★★★★ Леонид2.9y ago
Спасибо за плагин. Хорошо работает. Блокирует автоматический спам и пропускает нормальные комментарии.Thanks for the plugin. It works well. Blocks automatic spam and skips normal comments.
Read on wp.org ↗ - ★★★★★ Irina3.6y ago
No spam for over 5 years.Thank you!
Read on wp.org ↗ - ★★★★★ Vladimir Kazakov5.6y ago
En: On the themes-wordpress.ru site with zero visitors I have about 700 spam comments for a year of work, which Akismet marked as spam, they had to be opened and cleaned. This is a waste of time. It is better that spam comments do not appear at all. right now I use the kama-spamblock plugin and in a year and a half not a single spam comment! kama-spamblock is a very good plugin! Another advantage is that captcha does not annoys. no need to enter any numbers or click (like in Google recaptcha). Right now I want to repeat your success (take over the idea of captcha) for another CMS. everything is so great. Ru: за полтора года ни одного спамного коментария и капча не раздражает раньше у меня на сайте themes-wordpress.ru с нулевой посещалкой за год работы были штук 700 спамных коментариев, которые Akismet помечал как спамные, их надо было открывать и чистить. Это бессмысленная трата времени. Лучше чтобы спамные коментарии вообще не появлялись. щас я пользуюсь плагином kama-spamblock и за полтора года ни одного спамного коментария! kama-spamblock – очень хороший плагин! Ещё одно преимущество в том что капча не бесит. не требуется вводить никакие цифры или кликать (как в Гугл рекапча). Щас я хочу повторить ваш успех (перенять идею капчи) для другой CMS. настолько всё отлично.
Read on wp.org ↗ - ★★★★★ Nester6.4y ago
Мне очень нравятся плагины, которые имеют минимум настроек и выполняют то что от них нужно без излишеств. Спасибо!
Read on wp.org ↗ - ★★★★★ Natalya7.2y ago
Simple settings, and the result is excellent. Thank!
Read on wp.org ↗ - ★★★★★ sergeyua127.5y ago
Больше года не знаю, что такое спам-комментарии! Имел опыт с большими плагинами спам-коммент. – одни проблемы и заботы: то надо решить спам это или нет, а потом удалить спам. С этим плагинам “Kama SpamBlock” не чего делать не надо – просто нет спамов!!!
Read on wp.org ↗ - ★★★★★ elenavogni7.9y ago
Меня замучили китайцы со своим бесконечным спамом. У меня стоял акисмет, который действительно отмечал его, как спам, но приходилось регулярно вычищать тонны спама. Но когда я поставила этот плагин, спам вообще перестал приходить! Насколько я поняла, плагин что-то такое делает, что для отправки сообщения нужно выполнить мышкой нажатие кнопки. А боты этого делать не могут. Я редко захожу оставлять комментарии, но тут не удержалась, хочется сказать спасибо автору. И еще, хотя, написано, что с моей версией вордпресс плагин не тестировался, он все равно работает.
Read on wp.org ↗
Latest updates
via wp.org changelogRecent releases and news for this plugin
- — Version 1.9.0 IMP: Return a 403 response for blocked spam comments. FIX: Prevent malformed comment requests from causing PHP errors. FIX: Use a generated unique code immediately after plugin activation. FIX: Minor bugfix. CHG: Min PHP 1.9.0
- — Version 1.8.3 FIX: XSS vulnerability fixed. Thanks to Wordfence for the report. IMP: Other minor improvements. 1.8.3
- — Version 1.8.2 Minor refactoring. 1.8.2
- — Version 1.8.1 Code refactoring. kama_spamblock__process_comment_types hook added. 1.8.1
- — Version 1.8 FIX: WordPress 5.5 support. 1.8
- — Version 1.7.5 FIX: bug with unique code comparison. Minor code fixes. 1.7.5
Security history
via Wordfence IntelligenceThe 1 disclosed vulnerability is patched in the current version (2.0.0). Sites still on an older version should update.
- 2024-10-15 CVE-2024-9647 Improper Neutralization of Input During Web Page Generation Affects <= 1.8.2 Patched in 1.8.3
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 HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 6.6.2
Languages
via translate.wordpress.orgTranslated into 3 languages, 2 at 90% or more
AI assistants
How it's measured →Whether ChatGPT and Claude name this plugin when asked the category question, and whether the readme gives them something to quote.
Not measured yet for this plugin’s topics. Its tracked searches are not among the measured topics. See the topics measured so far.
Readme readiness
3 of 8 pass · checked 27 Oct 2026Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.
- ! Says what it does Short description names no action; say what the plugin does for the site.
- ! Has a FAQ Only 1 question in the FAQ; 3 or more gives an assistant something to match.
- ! FAQ asks real questions 0 of 1 FAQ entries are headings, not questions ("undefined").
- ! Names who it is for Never says who the plugin is for or what they use it for.
- ! Names what it works with Names no plugin, service or platform it works with.
- ✓ Headings and lists 2 headings and 2 lists.
- ✓ Enough to quote 2,622 characters of description.
- ✓ Tags match the text 4 of 5 tags appear in the text; "antispam" does not.
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2026-08-11 5K+ → 4K+ down after 464 days in tier
- 2025-05-04 6K+ → 5K+ down after 2 days in tier
- 2025-05-02 5K+ → 6K+ up after 1 days in tier
- 2025-05-01 6K+ → 5K+ down after 1 days in tier
- 2025-04-30 5K+ → 6K+ up after 1 days in tier
- 2025-04-29 6K+ → 5K+ down after 409 days in tier
- 2024-03-16 7K+ → 6K+ down after 19 days in tier
- 2024-02-26 6K+ → 7K+ up after 1 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).
-
Akismet Anti-spam: Spam Protection 5M+ installs · 4.7★ · 3 shared tags A -
Anti-Spam, Spam FireWall by CleanTalk 200K+ installs · 4.8★ · 3 shared tags A -
hCaptcha for WP 70K+ installs · 4.5★ · 3 shared tags A -
Friendly Captcha for WordPress 10K+ installs · 3.9★ · 3 shared tags B -
Spam Destroyer 5K+ installs · 4.5★ · 3 shared tags B -
Block List Updater 2K+ installs · 4.0★ · 3 shared tags B
Embed this report card
Drop a live Pulse card for Kama SpamBlock into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/kama-spamblock" width="480" height="300" style="border:0" loading="lazy" title="Kama SpamBlock — Plugin Pulse"></iframe> Kama SpamBlock: 4K+ active installs, 5.0★ (17 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/kama-spamblock
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