Zero Spam makes blocking spam comments and registrations easy.
As of April 2026, LH Zero Spam is a WordPress spam plugin with 200 active installations and a 5/5 rating from 3 reviews. It has been downloaded 7.6K+ times in total. Requires WordPress 4.0+ and PHP 7.0+. Available on WordPress.org since 2015. Last updated 3 years ago — may have compatibility concerns. Top alternative: Akismet Anti-spam: Spam Protection.
Why should your users prove that they’re humans by filling out captchas? Let bots prove they’re not bots with the LH Zero Spam plugin.
LH Zero Spam blocks registration spam and spam in comments automatically without any config or setup. Zero Spam was initially built based on the work by David Walsh, but enhanced with simpler code base and unobtrusive JavaScript.
Major features in LH Zero Spam include:
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| WordPress | 4.0+ requiredTested up to 6.0.11 |
| PHP | 7.0+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.