Title: CIDRAM
Author: Maikuolan
Published: August 4, 2016
Last modified: March 28, 2026
---
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# CIDRAM
By [Maikuolan](https://profiles.wordpress.org/maikuolan/)
[Download](https://downloads.wordpress.org/plugin/cidram.4.1.0.zip)
* [Details](https://pcd.wordpress.org/plugins/cidram/#description)
* [Reviews](https://pcd.wordpress.org/plugins/cidram/#reviews)
* [Installation](https://pcd.wordpress.org/plugins/cidram/#installation)
* [Development](https://pcd.wordpress.org/plugins/cidram/#developers)
[Support](https://wordpress.org/support/plugin/cidram/)
## Description
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.
### Requirements
* PHP >= 7.2.0
* PCRE
### Updating
Note: CIDRAM does not interact in any way with your database, and stores its own
configuration settings, customisations, and related materials as flatfiles within
its own directory. If you’ve not changed any of the default configuration settings
and if you’re not using any customisations for this plugin, updating normally via
the plugins dashboard, without need for any additional steps, should be sufficient
and shouldn’t cause any problems. However, if you’ve modified the configuration
settings for CIDRAM, or if you’ve made any customisations, I would recommend making
backups of all of these prior to updating, due to that updating will overwrite all
settings and customisations (after updating, you can then restore your customisations
from your backups). Alternatively, if you update via the CIDRAM front-end updates
page, all settings and customisations should be preserved.
## Screenshots
* [[
* Screenshot of the CIDRAM Front-End homepage.
* [[
* Screenshot of the CIDRAM “Access Denied” page.
## Installation
Installing via the plugins dashboard.
1. Before you begin, ensure that you’re logged in as an administrator with the necessary
permissions to install, update and edit plugins (after activating the plugin but
before modifying the plugin configuration file, do not log out from this account).
2. From the plugins dashboard, click the “Add New Plugin” button. From the page that
appears, type “CIDRAM” into the “Search Plugins” text field, and press enter. A
button to install CIDRAM should appear, and CIDRAM should automatically install
when you click on that button.
3. Before activating the plugin, it is advisable to understand the various configuration
directives available to the plugin, what they do, and how to change them. Go to`
https://cidram.github.io/`, scroll the page until you reach the “Documentation”
subheading; Choose your language, and read through “Section 5: Configuration Options”;
The information presented relates to the configuration directives available to
the plugin.
4. Please read through the “Frequently Asked Questions” before activating!
5. From the plugins dashboard, click the “Activate” button located directly below
where you see “CIDRAM”.
Installing manually.
Please refer to the installation instructions provided by the documentation available
at `https://cidram.github.io/`.
## FAQ
Please refer to `https://github.com/CIDRAM/Docs/blob/master/readme.en.md#user-content-
SECTION8`
## Reviews
### [The Bees Knees – Massively Underrated!](https://wordpress.org/support/topic/the-bees-knees-massively-underrated/)
[ozguy](https://profiles.wordpress.org/ozguy/) July 24, 2024
I could write an in-depth review, pointing out why CIDRAM is the most underrated
WP security plugin, ever. However, I’ll simply say this…I’ve been using WP since
V2.6 (circa 2008). Over the years, I’ve tried all manner of security plugins, as
well as other scripts. ZBBlock which CIDRAM is loosely based upon, I found was the
best of the best. Hackers, Script Kiddies, Bad Bots, scrappers and other nefarious
evil doers, don’t stand a chance again CIDRAM.Best of all, no database calls… Take
my advice, if you want to protect your WP site as best as you can (nothing is 100%
safe), and you want to avoid bloat, install CIDRAM, I doubt many, if any, will regret
that decision.Cheers
### [Excellent Plugin](https://wordpress.org/support/topic/excellent-plugin-8930/)
[afrikane](https://profiles.wordpress.org/afrikane/) December 12, 2023
Having been a longtime user of ZB Block I was well aware of CIDRAM which was integrated
with it. I needed something relatively simpler than ZBB (I.E. a GUI) to use for
few fellow admins. CIDRAM fits that bill. That said, CIDRAM is not for the novice
admin. Read the excellent documentation thoroughly before installing.
### [cidram issue](https://wordpress.org/support/topic/cidram-issue/)
[Gerrard Johnson](https://profiles.wordpress.org/tec4sho/) March 23, 2023 3 replies
Hi does this system/plugin still work, it did not work manually installed when calling
the class. Also its not opening in wp settings or seem to do anything after installing
as a plugin so where are the controls an logs located, after reading github for
answers an as a developer myself am still lost to its real usage, so i decided to
ask direct before i remove it an try something else where.
### [EXCELLENT Security Plugin, but lacking support…](https://wordpress.org/support/topic/excellent-security-plugin-33/)
[Terry J](https://profiles.wordpress.org/texasbiz/) January 24, 2023 1 reply
This plugin is excellent. Have only used for one day and and can tell the difference
in garbage traffic on site.
Only issue is it is blocking Bing and Google
bots at random.
Know it is a free plugin, but pretty serious when dealing
with important SE bots.
UPDATE: Code has drastically improved and
can now say impressed with the whole system. Pushing my rating to 5 stars!
### [Great Plugin!](https://wordpress.org/support/topic/great-plugin-28429/)
[Jero](https://profiles.wordpress.org/jero25/) November 2, 2020
Great Plugin! Highly recommended.
### [A Must Use for Every Site](https://wordpress.org/support/topic/a-must-use-for-every-site/)
[yvrdarb](https://profiles.wordpress.org/yvrdarb/) October 3, 2019
This is an awesome security tool and a must have on all of my sites.
[ Read all 12 reviews ](https://wordpress.org/support/plugin/cidram/reviews/)
## Contributors & Developers
“CIDRAM” is open source software. The following people have contributed to this
plugin.
Contributors
* [ Maikuolan ](https://profiles.wordpress.org/maikuolan/)
“CIDRAM” has been translated into 14 locales. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/cidram/contributors)
for their contributions.
[Translate “CIDRAM” into your language.](https://translate.wordpress.org/projects/wp-plugins/cidram)
### Interested in development?
[Browse the code](https://plugins.trac.wordpress.org/browser/cidram/), check out
the [SVN repository](https://plugins.svn.wordpress.org/cidram/), or subscribe to
the [development log](https://plugins.trac.wordpress.org/log/cidram/) by [RSS](https://plugins.trac.wordpress.org/log/cidram/?limit=100&mode=stop_on_copy&format=rss).
## Changelog
Please refer to `https://github.com/CIDRAM/CIDRAM/blob/v4/Changelog.md`.
## Meta
* Version **4.1.0**
* Last updated **1 week ago**
* Active installations **20+**
* WordPress version ** 4.8 or higher **
* Tested up to **6.9.4**
* PHP version ** 7.2 or higher **
* Languages
* [Catalan (Valencian)](https://ca-valencia.wordpress.org/plugins/cidram/), [Czech](https://cs.wordpress.org/plugins/cidram/),
[Dutch](https://nl.wordpress.org/plugins/cidram/), [Dutch (Belgium)](https://nl-be.wordpress.org/plugins/cidram/),
[English (UK)](https://en-gb.wordpress.org/plugins/cidram/), [English (US)](https://wordpress.org/plugins/cidram/),
[Italian](https://it.wordpress.org/plugins/cidram/), [Korean](https://ko.wordpress.org/plugins/cidram/),
[Marathi](https://mr.wordpress.org/plugins/cidram/), [Russian](https://ru.wordpress.org/plugins/cidram/),
[Spanish (Chile)](https://cl.wordpress.org/plugins/cidram/), [Spanish (Colombia)](https://es-co.wordpress.org/plugins/cidram/),
[Spanish (Mexico)](https://es-mx.wordpress.org/plugins/cidram/), [Swedish](https://sv.wordpress.org/plugins/cidram/),
and [Ukrainian](https://uk.wordpress.org/plugins/cidram/).
* [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/cidram)
* Tags
* [anti-spam](https://pcd.wordpress.org/plugins/tags/anti-spam/)[cidr](https://pcd.wordpress.org/plugins/tags/cidr/)
[firewall](https://pcd.wordpress.org/plugins/tags/firewall/)[security](https://pcd.wordpress.org/plugins/tags/security/)
[WAF](https://pcd.wordpress.org/plugins/tags/waf/)
* [Advanced View](https://pcd.wordpress.org/plugins/cidram/advanced/)
## Ratings
5 out of 5 stars.
* [ 12 5-star reviews ](https://wordpress.org/support/plugin/cidram/reviews/?filter=5)
* [ 0 4-star reviews ](https://wordpress.org/support/plugin/cidram/reviews/?filter=4)
* [ 0 3-star reviews ](https://wordpress.org/support/plugin/cidram/reviews/?filter=3)
* [ 0 2-star reviews ](https://wordpress.org/support/plugin/cidram/reviews/?filter=2)
* [ 0 1-star reviews ](https://wordpress.org/support/plugin/cidram/reviews/?filter=1)
[Add my review](https://wordpress.org/support/plugin/cidram/reviews/#new-post)
[See all reviews](https://wordpress.org/support/plugin/cidram/reviews/)
## Contributors
* [ Maikuolan ](https://profiles.wordpress.org/maikuolan/)
## Support
Got something to say? Need help?
[View support forum](https://wordpress.org/support/plugin/cidram/)