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Defender vs Security Optimizer

Two WordPress plugins head to head: ranking, active installs, downloads and ratings, from our daily tracking of the WordPress.org directory.

These aren’t all alternatives to each other — they do different jobs — so this page compares popularity only, not features.

Defender

Defender

by WPMU DEV - Your All-in-One WordPress Platform

At a glance

Security Optimizer leads the WordPress.org popular list today at #51, ahead of Defender at #518. Security Optimizer has the largest install base, roughly 13× the next: 1M+ active installs against 80K+ for Defender. Downloads this week: Defender 36,640 and Security Optimizer 23,751. Ratings: Defender 4.8★ from 334 and Security Optimizer 4.5★ from 157 reviews.

Metric Defender Security Optimizer
Popular rank today #518 #51
Active installs 80K+ 1M+
Downloads, last 7 days 36,640 23,751
Rating 4.8★ (334) 4.5★ (157)
Last updated Sep 7, 2026 Aug 28, 2026
Current version 6.2.4 1.6.8
Best rank on record #515 #51
Days in the top 50 0 0
On WordPress.org since Jun 2017 May 2021

Highlighted cells mark the strongest figure in each row. Rank and installs are from the latest WordPress.org capture; downloads are the last seven captured days.

Ranking history Lower is better

DefenderSecurity Optimizer

Active installs

DefenderSecurity Optimizer

Downloads per day

DefenderSecurity Optimizer

Frequently asked questions

Which is more popular, Defender or Security Optimizer?

By active installs, Security Optimizer: 1M+ sites run it against 80K+ for Defender, according to WordPress.org figures captured on September 15, 2026.

Which ranks higher on WordPress.org, Defender or Security Optimizer?

Security Optimizer, at #51 on the WordPress.org popular plugins list today, with Defender at #518. The ranking reflects recent installs and moves daily, which is why this page shows the history rather than one snapshot.

Are Defender or Security Optimizer alternatives to each other?

Not all of them. Some of these plugins do different jobs and many sites run more than one. This page compares their popularity, not their features.

Where do these numbers come from?

WordPress.org publishes each plugin’s active install count and its position on the popular list. This site records both every day, along with per-day downloads and ratings, so the charts above show how the plugins have moved over time rather than a single day.