Cardea – Proof-of-Work Comment Spam Protection
by omikheev · Security
Lightweight, zero-dependency Proof-of-Work anti-spam protection for WordPress comments.
80 health vs 64 average across 1,371 Security plugins
Directory ranking optimization
How it's scored →How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.
Excellent listing optimization
Biggest win: Rating quality
To rank higher: Too few reviews to rank on quality — nudge happy users to leave one.
Get the full rank-higher report →Daily downloads
Since 2026-04-18 · 151 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peaks are release surges
126
now · peak 126
Estimated active installs
The public count shows “—”. Our estimate pins where the real number sits.
Modeled within the band wp.org reports; tightens as we track daily.
Install history · since 2026-09-15 · 2 observations
Details
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
No tier crossings observed yet.
Competes with
The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).
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Akismet Anti-spam: Spam Protection 5M+ installs · 4.7★ · 3 shared tags A -
Spam Destroyer 5K+ installs · 4.5★ · 3 shared tags A -
Antispam 400+ installs · 3.9★ · 3 shared tags D -
Auto-Close Comments, Pingbacks and Trackbacks 300+ installs · 4.0★ · 3 shared tags B -
Antispam Bee 700K+ installs · 4.8★ · 2 shared tags A -
Email Address Encoder 100K+ installs · 4.1★ · 2 shared tags B
Embed this report card
Drop a live Pulse card for Cardea – Proof-of-Work Comment Spam Protection into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/cardea" width="480" height="300" style="border:0" loading="lazy" title="Cardea – Proof-of-Work Comment Spam Protection — Plugin Pulse"></iframe> Cardea – Proof-of-Work Comment Spam Protection: — active installs, 0.0★ (0 reviews). Plugin Pulse (WP Mayor), as of 2026-09-16. https://plugins.wpmayor.com/plugin/cardea