Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF v2.0.7
Unlimited automatic image optimization for WordPress. Compress images, convert to WebP, and improve site speed without losing image quality.
Plugin Auditor is an independent service and is not affiliated with, endorsed by, or sponsored by Robin Image Optimizer or its developer. Disclaimer.
- Audit coverage Not yet audited newest version pending
- On Plugin Auditor since Sep 4, 2026
- Last audited Sep 4, 2026
Compatibility & requirements
The PHP and WordPress versions this plugin needs, and how current its version support is.
- Requires PHP 7.4+
- Requires WordPress 5.6+
- Tested up to WP 7.1 WP 7.1.3 is current
- Version adoption 51% run the current version
Audit scores by category
125 checksHow this plugin scores across the six areas we audit, from security to accessibility.
- 68 Passed
- 43 Warnings
- 14 Failed
20 of 37 checks passed.
36 of 61 checks passed.
4 of 12 checks passed.
4 of 6 checks passed.
1 of 3 checks passed.
3 of 6 checks passed.
Code footprint
How much code ships in this plugin, and the file types that make it up.
ZIP file size
1.8 MB
4.1 MB unzipped
Total files
518
across all file types
Lines of PHP
48,771
in 288 files Large
File types
- PHP
- JS
- PNG
- CSS
- Other
Top issues
The most important findings from the latest audit, ordered by severity.
- 111 Critical
- 507 High
- 258 Medium
- 392 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 24 audited versions of Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF, Security improved the most (+8). The largest regression was in Privacy (-67). The codebase grew 34% in size.
Audited 1.3.7 → 2.0.6 · 24 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
3,187
downloads
Today
451
downloads
Week over week
−18%
vs previous week
Month over month
+7%
vs previous month
Download trend: Growing. Abandonment risk: None.
Version intelligence
49% of installs run an older version
≈ 48.8K+ sites on a lower-scoring version.
- Other
- v1.5
- v1.6
- v1.7
- v1.8
- v2.0
Maintenance & history
How actively this plugin is kept up, from its last update to its release history.
Last updated
This month
Aug 4, 2026
Actively maintainedRelease cadence
~ every 81 days
average between releases
Total releases
24
since Jun 2019 · 7 yrs
Contributors & developers
The people credited with building and maintaining this plugin.
Running Robin Image Optimizer in Your Site?
Robin Image Optimizer 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.