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Best Free WordPress Plugins for Waf

8 plugins compared · Updated August 2026 · Waf

All 8 Free only Premium only

Choosing a WordPress plugin for waf comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 8 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 8 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. SiteGuard WP Plugin Best overall 89/100
  2. 2. CloudSecure WP Security 88/100
  3. 3. Security Ninja 84/100
  4. 4. Advanced IP Blocker 84/100
  5. 5. Atomic Edge Security 80/100
  6. 6. BitFire Security 79/100
  7. 7. WEDOS 78/100
  8. 8. CIDRAM 75/100
1 SiteGuard WP Plugin
Best overall Free by jp-secure

SiteGuard WP Plugin

Adds WordPress login and admin protections, including CAPTCHA, login lock, login alerts, renamed login URLs, and SiteGuard WAF tuning support.

4.3★
from 15 ratings
500k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
89

WPScore

Read review View on WordPress.org
2 CloudSecure WP Security
Free by XServer

CloudSecure WP Security

CloudSecure WP Securityは、管理画面とログインURLをサイバー攻撃から守る、国産・日本語対応のセキュリティ対策プラグインです。 簡単な設定だけで、不正アクセスや不正ログインからWordPressを保護し、...

5★
from 2 ratings
100k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
88

WPScore

Read review View on WordPress.org
3 Security Ninja
Free by cleverplugins

Security Ninja

WordPress security plugin: free 8G firewall/WAF, 50+ tests, vulnerability/core scanning, events logging, AI reports.

4.7★
from 101 ratings
7k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
84

WPScore

Read review View on WordPress.org
4 Advanced IP Blocker
Free by IniLerm

Advanced IP Blocker

A complete WordPress security firewall: blocks IPs, bots, countries & ASN. Includes an intelligent WAF, Threat Scoring, Geo-Challenge, and 2FA.

4.8★
from 24 ratings
2k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
84

WPScore

Read review View on WordPress.org
5 Atomic Edge Security
Free by shift8

Atomic Edge Security

WordPress firewall with cloud WAF rules, malware scanning, 2FA, vulnerability checks, IP blocking, and real-time security logs.

5★
from 5 ratings
700+
active installs
Updated
Jun 2026
Tested to
WP 7.0.4
80

WPScore

Read review View on WordPress.org
6 BitFire Security
Free by Cory Marsh

BitFire Security

Stop hackers, bots, and malware before they touch your site. AI-powered security with real human support when you need it.

5★
from 8 ratings
300+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
79

WPScore

Read review View on WordPress.org
7 WEDOS
Free by wedos.com

WEDOS

Activate WEDOS Global protection — WAF, DDoS protection and CDN for your WordPress website.

3.8★
from 4 ratings
400+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
78

WPScore

Read review View on WordPress.org
8 CIDRAM
Free by Maikuolan

CIDRAM

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

5★
from 12 ratings
20+
active installs
Updated
Aug 2026
Tested to
WP 7.1
75

WPScore

Read review View on WordPress.org