Yes, CIDRAM is free to use. It is available as a free plugin on WordPress.org.

How many websites use CIDRAM?

CIDRAM has 30 active installations as tracked by WordPress.org.

What are the best CIDRAM alternatives?

Popular alternatives to CIDRAM include CloudSecure WP Security, Login Security, FireWall, Malware…, Security Ninja – WordPress Security &…. You can compare them side-by-side on our comparison pages.

Does CIDRAM work with the latest WordPress?

CIDRAM has been tested up to WordPress 6.9.4. It requires WordPress 4.8+ and PHP 7.2+.

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CIDRAM

Name: CIDRAM
Rating: 5 (12 reviews)
Author: Maikuolan

CIDRAM: A PHP-level CIDR/IP-based firewall solution.

By Maikuolan·WAF·Free

5(12 reviews)

·30 active installs·Updated 1 week ago

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As of April 2026, CIDRAM is a WordPress WAF plugin with 30 active installations and a 5/5 rating from 12 reviews. It has been downloaded 7.5K+ times in total. Requires WordPress 4.8+ and PHP 7.2+. Available on WordPress.org since 2016. Actively maintained — updated within the last month. Top alternative: CloudSecure WP Security.

5/512 reviews

30active installs

7.5K+total downloads

10 yearssince 2016

Overview

CIDRAM (Classless Inter-Domain Routing Access Manager) is a PHP script designed to protect websites by blocking requests originating from IP addresses regarded as being sources of undesirable traffic, including (but not limited to) traffic from non-human access endpoints, cloud services, spambots, scrapers, etc. It does this by calculating the possible CIDRs of the IP addresses supplied from inbound requests and then attempting to match these possible CIDRs against its signature files (these signature files contain lists of CIDRs of IP addresses regarded as being sources of undesirable traffic); If matches are found, the requests are blocked.