Sz Comment Filter
No spam in comments. blocked by Invisible internal token-code with ajax.This is not used CAPTCHA.
Consider an alternative
Sz Comment Filter shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 12 years ago, and scores 23/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 11 years
- Only tested up to WordPress 4.1 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Sz Comment Filter stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| comment | >100 |
| comment spam | >100 |
| comments | >100 |
| spam | >100 |
| spammer | >100 |
Version adoption
Share of active sites per release.
About Sz Comment Filter
From the official readme · v1.1.2Description
In English:
No spam in comments. blocked by Invisible internal token-code with ajax.
This plugin blocks 100% of spam messages in the author of the environment.
It blocks spam without using the CAPTCHA input-field.
There is no modification of display the comment form.
(but the commnet which is posted by spammers manually via browser is not blocked by this plugin)
In Japanese:
このプラグインはコメント投稿時にAjaxを使ってスパムロボットによる投稿コメントか判別し自動でブロックするプラグインです。
作者の環境では、今のところこのプラグインで100％スパムBOT投稿がブロックできています。
一般的なスパム対策としてAkismetプラグインがありますがブロックされるのは９割程度で100%は止まりませんでした。
別の方法としてCAPTCHA系のプラグインを使いBot対策する手段もありますが、こちらはほぼ100%スパムBotからの投稿はブロックされますがユーザーに煩わしい確認文字入力に毎回協力してもらう必要がありました。 このプラグインでは、見えない入力欄を用意してコメント投稿時にjavascriptでCAPTCHA入力に変わる固有の確認トークン入力処理をで行うことでスパムBotからの投稿をブロックします。
利用ユーザーのコメントフォームの見え方は変わりません。
(残念ながらこのプラグインではブラウザを介した手入力によるスパム投稿はブロックできません)
Translators
- Japanese (ja)
Contact
email to contact[at]szmake.net
twitter @sxmtz
Installation
You can either install it automatically from the WordPress admin, or do it manually:
- Upload ‘sz-comment-filter’ folder to the
/wp-content/plugins/directory. - Activate the plugin through the ‘Plugins’ menu in WordPress.
Usage
No setting is necessary.If it’s Activated, it’ll begin to block the spam comment.
When you choose ‘Comments’ in the admin menu, it’s shown report. e.g.”Total 3 spam comments were blocked” .
(If the report was not shown,then please check “Screen Options” section.)
Changelog
1.1.2
- [FIX] css for display the blocking log(FromIP).
1.1.1
- [FIX] readme.txt markdown format.
1.1.0
- Modified display the blocking log in admin menu.
- Fixed the naming of the function name.
- (ja)ブロックしたコメント履歴の表示修正
- (ja)関数名の命名を修正
1.0.0
- The first release.
- (ja)初回版リリース
Screenshots
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.
Best Sz Comment Filter alternatives
All comment plugins →
FAQ
Sz Comment Filter: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 29, 2026
Is Sz Comment Filter free?
Yes. Sz Comment Filter is free to download and use from the official WordPress.org plugin directory.
Is Sz Comment Filter safe to use in 2026?
Sz Comment Filter shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 12 years ago, and scores 23/100 on our health check.
How many websites use Sz Comment Filter?
Sz Comment Filter is active on 10+ WordPress websites and has been downloaded 1,725 times since it launched in March 2015. It was downloaded 49 times in the last 30 days.
Does Sz Comment Filter work with WordPress 7.1?
Sz Comment Filter is officially tested up to WordPress 4.1.42, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Sz Comment Filter last updated?
The latest version, 1.1.2, was released on March 26, 2015 (12 years ago).
Who makes Sz Comment Filter?
Sz Comment Filter is developed and maintained by SzMake.
What are the best alternatives to Sz Comment Filter?
The most popular alternatives to Sz Comment Filter are AnyComment (5K+ installs), DCO Comment Attachment (5K+ installs) and Bulk Delete Comments (5K+ installs).
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