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Cardea – Proof-of-Work Comment Spam Protection

v1.0.2

by omikheev · updated 2 months ago

Lightweight, zero-dependency Proof-of-Work anti-spam protection for WordPress comments.

anti-spamcommentsProof of Workprotectionspam
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#63,411
Down791 vs yesterday
Active installs (est.)
≈ 4
Fewer than 10 reported · High
Total downloads
555
555 all-time
Rating
–
0 reviews
Support resolved
–
0 of 0 threads, last 2 months
Growing·Downloads +0% (30d)·Toward 10+ · ETA unknown

Cardea at a glance

Cardea is a WordPress plugin by omikheev with fewer than 10 active installs, the #63,411 most popular plugin on WordPress.org. On a typical day it’s downloaded about 2 times, about the same as the month before. It has no reviews yet. Version 1.0.2 came out on Sep 4, 2026 and is tested up to WordPress 7.1.4. Among the 7 plugins tagged “Proof of Work”, it ranks #4. It was first released in 2026.

Chart time range

Applies to every chart below. History from Oct 11, 2026, 30 days.

Showing the last 30 days. Full history comes with any paid plan.See plans

Downloads over time

Download stats

63 downloads · the last 30 days

Downloads over time
Cardea Compare series
Downloads over time: 28 days across 1 series.05Oct 11Oct 16Oct 20Oct 25Oct 29Nov 3Nov 7Oct 29, 2026: Tested up to 7.1.4
View as table
DateCardea
Nov 7, 20263
Nov 6, 20263
Nov 5, 20260
Nov 4, 20263
Nov 3, 20263
Nov 2, 20260
Nov 1, 20262
Oct 31, 20261
Oct 30, 20261
Oct 29, 20260
Oct 28, 20262
Oct 27, 20264
Oct 26, 20266
Oct 25, 20262
Oct 24, 20262
Oct 23, 20261
Oct 22, 20264
Oct 21, 20261
Oct 20, 20262
Oct 19, 20261
Oct 18, 20269
Oct 17, 20262
Oct 16, 20262
Oct 15, 20262
Oct 14, 20262
Oct 13, 20262
Oct 12, 20261
Oct 11, 20262

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 4 · -50.0% in the last 30 days

Estimated installs
Estimated installs: 14 days across 1 series.468Oct 27Oct 29Nov 1Nov 3Nov 5Nov 8Nov 10Oct 29, 2026: Tested up to 7.1.4
View as table
DateEstimated installs
Nov 10, 20264
Nov 9, 20265
Nov 8, 20265
Nov 7, 20266
Nov 5, 20264
Nov 4, 20264
Nov 3, 20264
Nov 2, 20264
Nov 1, 20264
Oct 31, 20265
Oct 30, 20265
Oct 29, 20266
Oct 28, 20266
Oct 27, 20268

Rank over time

#63,411 · down 12,335 in the last 30 days

Popular rank
Popular rank: 8 days across 1 series.#55K#60KOct 27Oct 30Nov 1Nov 6Nov 8Nov 10Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 10, 2026#63,411
Nov 9, 2026#62,620
Nov 8, 2026#60,093
Nov 6, 2026#54,960
Nov 1, 2026#63,895
Oct 30, 2026#59,482
Oct 28, 2026#57,327
Oct 27, 2026#51,076

Growth %

Average -4.83% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 13 days across 1 series.-20%0%20%Oct 28Oct 30Nov 1Nov 3Nov 5Nov 8Nov 10
View as table
DateGrowth
Nov 10, 2026-20.00%
Nov 9, 20260.00%
Nov 8, 2026-16.67%
Nov 7, 2026+25.00%
Nov 5, 20260.00%
Nov 4, 20260.00%
Nov 3, 20260.00%
Nov 2, 20260.00%
Nov 1, 2026-20.00%
Oct 31, 20260.00%
Oct 30, 2026-16.67%
Oct 29, 20260.00%
Oct 28, 2026-25.00%

Active installs band

Fewer than 10 on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 15 days across 1 series.-101Oct 27Oct 29Nov 1Nov 3Nov 5Nov 8Nov 10Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 10, 2026Fewer than 10
Nov 9, 2026Fewer than 10
Nov 8, 2026Fewer than 10
Nov 7, 2026Fewer than 10
Nov 6, 2026Fewer than 10
Nov 5, 2026Fewer than 10
Nov 4, 2026Fewer than 10
Nov 3, 2026Fewer than 10
Nov 2, 2026Fewer than 10
Nov 1, 2026Fewer than 10
Oct 31, 2026Fewer than 10
Oct 30, 2026Fewer than 10
Oct 29, 2026Fewer than 10
Oct 28, 2026Fewer than 10
Oct 27, 2026Fewer than 10

Search rankings

Where it appears in WordPress.org search for the searches you track, checked every day.

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Change log

From our daily snapshot of WordPress.org
  1. Downloads +0%
    • Tested up to 7.1.3 → 7.1.4

Requirements & info

Version history
Version
1.0.2
Requires WordPress
6.0
Tested up to
7.1.4
Requires PHP
7.4
First released
Apr 18, 2026
Last updated
Sep 4, 2026
Releases, last 12 months
…

Questions about Cardea

How many websites use Cardea?

Cardea is active on fewer than 10 WordPress sites, as WordPress.org reports it. That makes it the #63,411 most popular plugin on WordPress.org.

How many times has Cardea been downloaded?

555 times in total since 2026. On a typical day it’s downloaded about 2 times. See download stats

When was Cardea last updated?

Version 1.0.2 came out on Sep 4, 2026 (2 months ago).

Is Cardea compatible with the latest WordPress?

Yes. It’s tested up to WordPress 7.1.4, the current version.

Is Cardea still maintained?

Yes. Its last release was 2 months ago. No support threads were opened in the last two months.

What rating does Cardea have?

No one has reviewed Cardea on WordPress.org yet.

What are the best alternatives to Cardea?

The plugins most like Cardea, by the tags they share, are Akismet Anti-spam (5M+), Anti-Spam, Spam FireWall by CleanTalk (200K+) and Spam Destroyer (5K+). Compare all alternatives

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
Cardea
Suggested:
Metric
Cardea
Estimated installs≈ 4
Reported installsFewer than 10
Rating–
Reviews0
Total downloads555
Authoromikheev
First releasedApr 18, 2026
Version1.0.2
Requires WP6.0
Requires PHP7.4
Last updatedSep 4, 2026

Alternatives to Cardea

Compare all alternatives

Popular plugins with the same tags, the most in common first.

Side by side:Cardea vs Akismet Anti-spamCardea vs Anti-Spam, Spam FireWall by CleanTalkCardea vs Spam Destroyer