HashCash – Proof of Work CAPTCHA
by RicheyWeb · Security
Invisible Proof-of-Work CAPTCHA. No checkboxes, no image grids, no Google, no tracking. Just spam protection that gets out of the way.
Not scored yet. Nobody has reviewed this plugin, so a grade would come from directory averages rather than from anything measured here.
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
Most to gain: Rating quality
To rank higher: No reviews yet. wp.org scores an unrated plugin as middling on rating, so the first good reviews lift it.
Get the full rank-higher report →Daily downloads
Since 2026-06-15 · 101 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peaks are release surges
45
now · peak 45
Estimated active installs
wp.org publishes an install count once a plugin has enough of them. This one has none yet.
wp.org reports no install count for this plugin yet.
Install history · since 2026-09-23 · 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).
-
Human Presence – Stop Form Spam Without ReCaptcha 1K+ installs · 4.4★ · 3 shared tags C -
Akismet Anti-spam: Spam Protection 5M+ installs · 4.7★ · 2 shared tags A -
Antispam Bee 700K+ installs · 4.8★ · 2 shared tags A -
CF7 Apps – Honeypot, Database, Redirection, Webhook, and Addons for Contact Form 7 300K+ installs · 3.8★ · 2 shared tags A -
Spam protection, Honeypot, Anti-Spam by CleanTalk 200K+ installs · 4.7★ · 2 shared tags B -
reCaptcha by BestWebSoft 100K+ installs · 3.9★ · 2 shared tags B
Embed this report card
Drop a live Pulse card for HashCash – Proof of Work CAPTCHA into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/captcha-hashcash" width="480" height="300" style="border:0" loading="lazy" title="HashCash – Proof of Work CAPTCHA — Plugin Pulse"></iframe> HashCash – Proof of Work CAPTCHA: no active install count reported, no reviews yet. Plugin Pulse (WP Mayor), as of 2026-09-24. https://plugins.wpmayor.com/plugin/captcha-hashcash