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  4. SiteLock Security – WP Hardening, Login…
SiteLock Security – WP Hardening, Login Security & Malware Scans icon

SiteLock Security – WP Hardening, Login Security & Malware Scans

Free, lightweight WordPress security. Harden your site with login protection & 2FA, see Site Health clearly and run on-demand checks—setup in minutes.

By SiteLock·Site Health·Free
3.4(14 reviews)
·1.0K+ active installs·Updated 1 month ago
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As of April 2026, SiteLock Security is a WordPress site health plugin with 1.0K+ active installations and a 3.4/5 rating from 14 reviews. It has been downloaded 48K+ times in total. Requires WordPress 3.8+ and PHP 8.0+. Available on WordPress.org since 2013. Recently updated within the last 3 months. Downloads are up 8% this week. Top alternative: Performance Lab.

3.4/514 reviews
1.0K+active installs
48K+total downloads
13 yearssince 2013

Overview

🌟 Completely redesigned in Version 5.0 — now even stronger with 2FA in 5.1 🌟

The SiteLock WordPress plugin was recently rebuilt with three goals: make it faster, make it clearer and move the heavy work to the cloud. We built a cloudfirst architecture, modernized UI, expanded security controls and stripped out everything that didn’t need to be there. Our latest 5.1 release builds on that foundation with TwoFactor Authentication (2FA) to strengthen login security and give you tighter control over access.

The big changes:
– 🔒 Enhanced WordPress-specific hardening and login security controls
– ☁️ Cloud-powered scanning architecture for zero performance impact
– 🩺 New Site Health interface that shows you what matters in one view
– ⚡ Streamlined controls (fe…

Read full description on WordPress.org

Screenshots

Ratings & Reviews

3.414 reviews
5 ★
8
4 ★
0
3 ★
0
2 ★
1
1 ★
5

Recent Reviews

SiteLock Security WordPress Plugin
by Seb·2 months ago

The SiteLock Security WordPress plugin is a lightweight WordPress security tool aimed at giving site owners essential protections with minimal performance impact. It focuses on baseline hardening (e.g., blocking unsafe scripts and tightening directory permissions) and login security (e.g., brute-force protection, session timeouts, and strong password enforcement) right from your WordPress dashboard. Cloud-powered scans and on-demand checks help you monitor your site’s status without consuming server resources.

SSL verification not working
by wujanowski·2 years ago

Since the start of the service SiteLock is not able to connect to my (verified) domain and verify the SSL certificate. Support reactions are far from satisfying.

Bad product, worse customer support
by oliverrealize·7 years ago·1 reply

They will show false positives for Google Analytics tag, then charge you to remove it, then send you an email saying they were wrong and it was a false positive and that they didn’t actually remove any malware, but won’t refund your money.

I’m thankful when SiteLock warns me about a malicious site
by kcampana·8 years ago

With my extensive travels, festival reviews and listing of nearly 1,000 Ohio festivals, it’s impossible for me to constantly check the safety of the thousands of outgoing links found on my website. That’s why I’m thankful when SiteLock warns me about a malicious site so that I can quickly remove the bad link before my readers click on it.

Definitely understand customer service
by ahorowitz·8 years ago

SiteLock employees definitely understand customer service. When I signed up for Sitelock’s website security service, I was also in the middle of changing web hosting companies, transferring my domain name and getting my website redesigned in the wake of my previous website having been hacked and rendered useless. Steve (my SiteLock security consultant) went the extra mile and helped with some things that weren’t even his responsibility.

Download Trends

Today: 31Yesterday: 30This week: 170Period total: 10K

Compatibility

WordPress3.8+ requiredTested up to 6.9.4
PHP8.0+ required

Version Adoption

v5.1
52.9%
v5.0
26.8%
v4.2
11.3%
v4.0
5.2%
v4.1
3.8%

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Frequently Asked Questions

Changelog

5.1.0

Release Date February 19, 2026

  • Feature: Added new Two-Factor Authentication (2FA) functionality to improve login security
  • Fix: Improved license key validation flow
  • Fix: Improved WordPress hardening handling to prevent .htaccess update issues
  • Fix: Improved report data freshness, including last scan and next scheduled scan date handling
  • Fix: Minor UI improvements

…and 1 more changes

View full changelog on WordPress.org

Contributors

tlowtlowSiteLockSiteLockSiteLockSiteLock
Plugin Info
Version
5.1.0
Last Updated
Feb 26, 2026
WP Requires
3.8+
Tested Up To
6.9.4
PHP Requires
8.0+
Active Installs
1.0K+
Downloads
48K+
Added
May 2, 2013
Business
Free

Tags

site healthmalware scanlogin securitywordpress securityvulnerability scanner

Developer

S
SiteLock
1 plugins0.0M+ total installs
View all plugins →

Quick Compare

SiteLock Security – WP Hardening, Login… vs Performance Lab→SiteLock Security – WP Hardening, Login… vs Version Info – Server Health Monitor…→SiteLock Security – WP Hardening, Login… vs WPVulnerability→

Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.