Best WordPress Firewall Plugin to Filter Spam Traffic

Best WordPress Firewall Plugin in 2021

Are you searching for the best WordPress firewall plugin to install on your site?

A WordPress firewall plugin allows you to secure your site against brute force, DDoS attacks, traffic spams, and several other web threats.

In this article, we will explain to you the best WordPress firewall plugin.

Let’s first understand what a WordPress firewall plugin is

What is a WordPress Firewall Plugin?

A WordPress firewall plugin (also known as web application firewall or WAF), serves as a shield among your site and all incoming website traffic.

These web application firewalls (WAF) monitor your website traffic and blocks several possible security threats before they attack your WordPress website.

Apart from significantly improving your WordPress security, these web application firewalls often speed up your site and boost performance.

Below we have listed two common types of WordPress firewall plugins available:

DNS Level Website Firewall: This type of firewall plugins routes your website traffic via their cloud proxy servers. This allows you to filter out the illegitimate traffic and just send genuine traffic to your server.

Application Level Firewall: An application-level firewall plugin starts examining the traffic once it reaches the server and before most of the WordPress scripts are loaded. However, this firewall method is not as effective as a DNS level firewall in minimizing the server load.

We suggest you use a DNS level firewall as they are ideal for filtering out the bad request vs genuine website traffic.

So without further ado,, let’s have a look at some of the best WordPress firewall plugins that you can use to filter spam traffic.

Best WordPress Firewall Plugin

Here is the list of best WordPress firewall plugins you should be getting your hands on:


Cloudflare is a famous CDN provider that is utilized by several users to boost WordPress website’s performance. Apart from offering CDN, Cloudflare packs a suite of powerful security features.

One such security feature is DNS level firewall.

The DNS level firewall of this plugin filters the traffic, reduces bandwidth usage, and reduces downtime during a traffic surge. Several reports say, the website using Cloudflare’s service save up to 60 % in bandwidth, and level up in website’s security.

Cloudflare plugin has several security features:

  • Mitigate DDoS Attacks
  • Prevent Bot Abuse
  • WAF

Cloudflare doesn’t have application-level security scans, and it works on the network level.

Basically, Cloudflare is available both as free and paid. Free plans are sufficient for bloggers.

BBQ Firewall

BBQ Firewall is one of the simplest and lightweight firewall plugins. It is a powerful plugin that offers protection against a wide range of security threats.

BBQ filters all the requests and block the bad requests such as base 64 and long request strings in the backend at the network level.

This plugin has over 100k installations and claims to be the fastest WAF for WordPress.

Despite being a small-sized plugin, it is extremely powerful to block spam traffic and bots.

BBQ Firewall offers security against:

  • SQL injection attacks
  • Executable file uploads
  • Directory traversal attacks
  • Insecure character requests
  • Extremely long requests
  • PHP remote/file execution
  • XSS, XXE, and related attacks
  • Offers security against bad bots
  • Protects against bad actors

BBQ Firewall comes in both free and pro versions.


Sucuri is another WordPress plugin in our list of best WordPress firewall plugin. Their products incorporate DNS level firewall, brute force prevention, malware removal, and blacklist removal services.

Before the site traffic goes to main website, the site traffic is routed to the sucuri proxy servers that scan each of the site request. Just the legitimate traffic route are allowed to go past through the filter and rest of infected and malicious requests are filtered out.

By blocking the spam and bot attacks, Sucuri also minimizes the load on a web server. Caching optimizations, website acceleration, and CDN enhances the website’s performance. 

Additionally, the Sucuri firewall safeguards your website against SQL Injections, XSS, RCE, RFU, and all known-attacks.

Features of Sucuri:

  • Security activity auditing
  • File integrity monitoring
  • Remote malware scanning
  • Blocklist monitoring
  • Effective security hardening
  • Post-hack security actions
  • Security notifications
  • Website firewall

Sucuri is paid WAF service.

Best WordPress Firewall Plugin: Brief Story

If you are a blogger or a novice in the WordPress field, Cloudflare is ideal for you. BBQ is best for new websites. Sucuri is ideal for big websites that need premium firewalls.


We hope this article helped you pick the best WordPress firewall plugin.

Additionally, you can check our Managed VPS Hosting UK plans that offer malware protection, Anti-spam & Antivirus protection.

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