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Headers Security Advanced & HSTS WP v5.3.5

Best all-in-one WordPress security plugin, uses HTTP & HSTS response headers to avoid vulnerabilities: XSS, injection, clickjacking. Force HTTP/HTTPS.

Plugin Auditor is an independent service and is not affiliated with, endorsed by, or sponsored by Headers Security Advanced & HSTS WP 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 4.7+
  • Tested up to WP 7.0 WP 7.1.3 is current
  • Version adoption 77% run the current version

Audit scores by category

125 checks

How this plugin scores across the six areas we audit, from security to accessibility.

  • 105 Passed
  • 17 Warnings
  • 3 Failed
Security 89/100
Good

33 of 37 checks passed.

Code Quality 85/100
Good

52 of 61 checks passed.

Performance 83/100
Good

10 of 12 checks passed.

Compatibility 67/100
Needs Improvement

4 of 6 checks passed.

Privacy 100/100
Excellent

3 of 3 checks passed.

Accessibility 50/100
Needs Improvement

3 of 6 checks passed.

Code footprint

How much code ships in this plugin, and the file types that make it up.

View in detail

ZIP file size

910.9 KB

2.7 MB unzipped

Total files

50

across all file types

Lines of PHP

1,393

in 17 files Small

File types

  • PHP
  • PO
  • MO
  • TXT
  • Other

Top issues

The most important findings from the latest audit, ordered by severity.

  • 0 Critical
  • 9 High
  • 34 Medium
  • 29 Low

This is a preview of notable findings. Full file-level results, line numbers and code context are in the scan.

View full report

How scores changed across versions

Across 30 audited versions of Headers Security Advanced & HSTS WP, Security improved the most (+3). No category regressed over this span. The codebase grew 224% in size.

Audited 5.0.18 → 5.3.3 · 30 versions

0 50 100 5.0.18 5.0.28 5.0.40 5.3.3

How issues changed across versions

Findings by severity for each audited version, so you can see which issues were fixed over time.

0 38 75 5.0.18 5.0.28 5.0.40 5.3.3

Download momentum

How fast this plugin is being installed lately, and whether that pace is rising or slowing.

Last 7 days

8,003

downloads

Today

1,146

downloads

Week over week

−55%

vs previous week

Month over month

0%

vs previous month

Download trend: Steady. Abandonment risk: None.

Version intelligence

23% of installs run an older version

≈ 20.6K+ sites on a lower-scoring version.

  • Other
  • v5.0
  • v5.2
  • v5.3

Ratings

79 ratings on WordPress.org

  • 5 73
  • 4 3
  • 3 1
  • 2 2
  • 1 0

Support: 2 / 5 threads resolved in the last two months

Maintenance & history

How actively this plugin is kept up, from its last update to its release history.

Last updated

This month

Jul 7, 2026

Actively maintained

Release cadence

~ every 15 days

average between releases

Total releases

41

since Aug 2022 · 4 yrs

Contributors & developers

The people credited with building and maintaining this plugin.

Running Headers Security Advanced & HSTS WP in Your Site?

Our latest audit of Headers Security Advanced & HSTS WP v5.3.5 flagged 72 issues. Scan your own copy to see each one with its exact file, line number, and a recommended fix.

Headers Security Advanced & HSTS WP 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.