Optimus – WordPress Image Optimizer v1.6.3
Effective image compression and optimization during the upload process. Smart, automatic and reliable.
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- Audit coverage Up to date 22 versions audited
- On Plugin Auditor since Sep 9, 2026
- Last audited Sep 9, 2026
Compatibility & requirements
The PHP and WordPress versions this plugin needs, and how current its version support is.
- Requires PHP 5.6+
- Requires WordPress 4.6+
- Tested up to WP 6.9 WP 7.1.3 is current
- Version adoption 97% run the current version
Audit scores by category
125 checksHow this plugin scores across the six areas we audit, from security to accessibility.
- 96 Passed
- 23 Warnings
- 6 Failed
27 of 37 checks passed.
47 of 61 checks passed.
9 of 12 checks passed.
5 of 6 checks passed.
3 of 3 checks passed.
5 of 6 checks passed.
Code footprint
How much code ships in this plugin, and the file types that make it up.
ZIP file size
23.3 KB
77.6 KB unzipped
Total files
12
across all file types
Lines of PHP
2,230
in 8 files Small
File types
- PHP
- CSS
- JS
- TXT
Top issues
The most important findings from the latest audit, ordered by severity.
- 1 Critical
- 54 High
- 36 Medium
- 34 Low
This is a preview of notable findings. Full file-level results, line numbers and code context are in the scan.
View full reportHow scores changed across versions
Across 22 audited versions of Optimus – WordPress Image Optimizer, The largest regression was in Performance (-8). The codebase grew 35% in size.
Audited 1.3.1 → 1.6.3 · 22 versions
How issues changed across versions
Findings by severity for each audited version, so you can see which issues were fixed over time.
Download momentum
How fast this plugin is being installed lately, and whether that pace is rising or slowing.
Last 7 days
281
downloads
Today
68
downloads
Week over week
+4%
vs previous week
Month over month
+18%
vs previous month
Download trend: Growing. Abandonment risk: Moderate.
Version intelligence
2.5% of installs run an older version
≈ 762 sites on a lower-scoring version.
- Other
- v1.6
Maintenance & history
How actively this plugin is kept up, from its last update to its release history.
Last updated
6 mo ago
Mar 2, 2026
Release cadence
~ every 111 days
average between releases
Total releases
22
since Apr 2014 · 12 yrs
Contributors & developers
The people credited with building and maintaining this plugin.
Running Optimus in Your Site?
Optimus and its trademarks are used only to identify the plugin analyzed and remain the property of their owners. This is an independent Plugin Auditor audit, not affiliated with, sponsored by, or endorsed by the plugin's developer. Metadata may come from WordPress.org; scores, findings, classifications, and visualizations are independently generated by Plugin Auditor. Full disclaimer.