SSL Zen — SSL Certificate Installer & HTTPS Redirects v4.7.42
Secure your website with a Free Let’s Encrypt SSL certificate. SSL Zen is a ‘Free SSL certificate’ plugin that helps you to secure your website, protect your customer’s data an...
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- Audit coverage Up to date 24 versions audited
- On Plugin Auditor since Sep 14, 2026
- Last audited Sep 15, 2026
Compatibility & requirements
The PHP and WordPress versions this plugin needs, and how current its version support is.
- Requires PHP 5.6+
- Requires WordPress 4.2+
- Tested up to WP 7.0 WP 7.1.3 is current
- Version adoption 66% run the current version
Audit scores by category
125 checksHow this plugin scores across the six areas we audit, from security to accessibility.
- 63 Passed
- 45 Warnings
- 17 Failed
17 of 37 checks passed.
32 of 61 checks passed.
7 of 12 checks passed.
3 of 6 checks passed.
3 of 3 checks passed.
1 of 6 checks passed.
Code footprint
How much code ships in this plugin, and the file types that make it up.
ZIP file size
2.8 MB
9.3 MB unzipped
Total files
632
across all file types
Lines of PHP
71,941
in 192 files Large
File types
- PHP
- SVG
- OTHER
- WOFF2
- Other
Top issues
The most important findings from the latest audit, ordered by severity.
- 6 Critical
- 781 High
- 458 Medium
- 452 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 SSL Zen — SSL Certificate Installer & HTTPS Redirects, The largest regression was in Accessibility (-50). The codebase grew 1612% in size.
Audited 1.1 → 4.7.42 · 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
594
downloads
Today
67
downloads
Week over week
+13%
vs previous week
Month over month
−32%
vs previous month
Download trend: Declining. Abandonment risk: None.
Version intelligence
34% of installs run an older version
≈ 3.4K+ sites on a lower-scoring version.
- Other
- v4.5
- v4.7
Maintenance & history
How actively this plugin is kept up, from its last update to its release history.
Last updated
2 mo ago
Jul 11, 2026
Actively maintainedTotal releases
24
since Jun 2019 · 7 yrs
Contributors & developers
The people credited with building and maintaining this plugin.
Running SSL Zen in Your Site?
SSL Zen 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.