Headers Security Advanced & HSTS WP vs AcyMailing – Custom headers in emails (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Headers Security Advanced & HSTS WP
90K+ active installs
Free
AcyMailing – Custom headers in emails
30 active installs
Free
Quick Verdict
As of April 2026, Headers Security Advanced & HSTS WP has a higher user rating (4.9/5 from 77 reviews) and leads in active installations (90K+ vs 30). Both are free WordPress plugins. Headers Security Advanced & HSTS WP has accumulated 1.4M+ total downloads while AcyMailing – Custom headers in emails has 6.6K+.
Detailed Comparison
| Metric | Headers Security Advanced & HSTS WP | AcyMailing – Custom headers in emails | |
|---|---|---|---|
| Rating | 4.9/5 | ◄ | N/A |
| Total Reviews | 77 | ◄ | 0 |
| Active Installs | 90K+ | ◄ | 30 |
| Total Downloads | 1.4M+ | ◄ | 6.6K+ |
| Support Resolution | 0% | N/A | |
| Last Updated | 2 weeks ago | ◄ | 1 month ago |
| First Released | 2021 | 2021 | |
| Age | 5 years | 5 years | |
| WP Requires | 4.7+ | false+ | |
| PHP Requires | 7.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 5.3.2 | 3.9 |
Rating Breakdown
Headers Security Advanced & HSTS WP
AcyMailing – Custom headers in emails
Download Trends
Recent Reviews
Headers Security Advanced & HSTS WP Reviews
Fantastic!
Fantastic Plugin!
Awesome
I already loved the plugin! But the help I received from Andrea Ferro when a problem arose was also fantastic. Fantastic!Thanks
Great plugin and support
A very usefull and efficient plugin which bring important security to websites by just installing it !I have some questions and the support was very friendly and quick to answer. Thanks for your gr
AcyMailing – Custom headers in emails Reviews
No reviews yet
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Frequently Asked Questions
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Which has better ratings — Headers Security Advanced & HSTS WP or AcyMailing – Custom headers in emails?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.