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Hashcash

v1.0.14

by pkaroukin · updated 8 years ago

Integrates Hashcash.IO proof-of-work widget with login/registration/comment forms.

hashcashsecurityspam
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#28,609
Down1 vs yesterday
Active installs (est.)
≈ 21
20+ reported · High
Total downloads
5.9K
5,944 all-time
Rating
5.0/5
5 reviews
Support resolved
–
0 of 0 threads, last 2 months
Declining·Downloads -33.3% (30d)·Toward 10+ · ETA unknown

Hashcash at a glance

Hashcash is a WordPress plugin by pkaroukin with 20+ active installs, the #28,609 most popular plugin on WordPress.org. On a typical day it’s downloaded about 2 times, 33% fewer than the month before. It’s rated 5.0 out of 5 from 5 reviews. Version 1.0.14 came out on Jan 13, 2018, more than 8 years ago. It is tested up to WordPress 4.9.35. Among the 2 plugins tagged “hashcash”, it ranks #2. It was first released in 2014.

Chart time range

Applies to every chart below. History from Oct 10, 2026, 30 days.

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

Downloads over time

Download stats

62 downloads · the last 30 days

Downloads over time
Hashcash Compare series
Downloads over time: 28 days across 1 series.24Oct 10Oct 15Oct 19Oct 24Oct 28Nov 2Nov 6Oct 29, 2026: Tested up to 4.9.35
View as table
DateHashcash
Nov 6, 20265
Nov 5, 20261
Nov 4, 20261
Nov 3, 20263
Nov 2, 20264
Nov 1, 20262
Oct 31, 20262
Oct 30, 20261
Oct 29, 20261
Oct 28, 20262
Oct 27, 20262
Oct 26, 20264
Oct 25, 20263
Oct 24, 20261
Oct 23, 20263
Oct 22, 20264
Oct 21, 20261
Oct 20, 20262
Oct 19, 20262
Oct 18, 20263
Oct 17, 20263
Oct 16, 20261
Oct 15, 20262
Oct 14, 20261
Oct 13, 20261
Oct 12, 20261
Oct 11, 20262
Oct 10, 20264

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 21 · -4.5% in the last 30 days

Estimated installs
Estimated installs: 12 days across 1 series.2121.522Oct 28Oct 30Nov 1Nov 3Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 4.9.35
View as table
DateEstimated installs
Nov 9, 202621
Nov 8, 202621
Nov 7, 202622
Nov 5, 202622
Nov 4, 202622
Nov 3, 202622
Nov 2, 202622
Nov 1, 202622
Oct 31, 202622
Oct 30, 202621
Oct 29, 202622
Oct 28, 202622

Rank over time

#28,609 · down 484 in the last 30 days

Popular rank
Popular rank: 10 days across 1 series.#28K#28.2K#28.4K#28.6KOct 28Oct 30Nov 3Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 4.9.35
View as table
DateDaily snapshot
Nov 9, 2026#28,609
Nov 8, 2026#28,608
Nov 7, 2026#28,118
Nov 6, 2026#28,130
Nov 5, 2026#28,142
Nov 4, 2026#28,157
Nov 3, 2026#28,011
Oct 31, 2026#28,051
Oct 30, 2026#28,542
Oct 28, 2026#28,125

Growth %

Average -0.39% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 11 days across 1 series.-5%0%5%Oct 29Oct 31Nov 2Nov 5Nov 7Nov 9
View as table
DateGrowth
Nov 9, 20260.00%
Nov 8, 2026-4.54%
Nov 7, 20260.00%
Nov 5, 20260.00%
Nov 4, 20260.00%
Nov 3, 20260.00%
Nov 2, 20260.00%
Nov 1, 20260.00%
Oct 31, 2026+4.76%
Oct 30, 2026-4.54%
Oct 29, 20260.00%

Active installs band

20+ on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 14 days across 1 series.192021Oct 27Oct 29Oct 31Nov 2Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 4.9.35
View as table
DateDaily snapshot
Nov 9, 202620+
Nov 8, 202620+
Nov 7, 202620+
Nov 6, 202620+
Nov 5, 202620+
Nov 4, 202620+
Nov 3, 202620+
Nov 2, 202620+
Nov 1, 202620+
Oct 31, 202620+
Oct 30, 202620+
Oct 29, 202620+
Oct 28, 202620+
Oct 27, 202620+

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. Rank #28125 → #28142Downloads +0%
    • Tested up to 4.9.34 → 4.9.35

Versions in use

Share of active installs on each published version, from WordPress.org.

  • v1.0100%

Rating trend

5.0★★★★★5 reviews · steady in the last 30 days

Requirements & info

Version history
Version
1.0.14
Requires WordPress
3.0.0
Tested up to
4.9.35
Requires PHP
–
First released
Jul 1, 2014
Last updated
Jan 13, 2018
Releases, last 12 months
…

Questions about Hashcash

How many websites use Hashcash?

Hashcash is active on 20+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #28,609 most popular plugin on WordPress.org.

How many times has Hashcash been downloaded?

5,944 times in total since 2014. On a typical day it’s downloaded about 2 times. See download stats

When was Hashcash last updated?

Version 1.0.14 came out on Jan 13, 2018 (8 years ago).

Is Hashcash compatible with the latest WordPress?

Hashcash’s readme says it’s tested up to WordPress 4.9.35, while the current version is 7.1. That doesn’t mean it breaks, but its author hasn’t confirmed it works with the latest releases.

Is Hashcash still maintained?

Its last release was 8 years ago, so it may no longer be actively maintained. No support threads were opened in the last two months.

What rating does Hashcash have?

5.0 out of 5 from 5 reviews on WordPress.org. 100% of them give 5 stars.

What are the best alternatives to Hashcash?

The plugins most like Hashcash, by the tags they share, are Sucuri Security (600K+) and Zero Spam for WordPress (20K+).

Latest reviews

Analyze reviews
All reviews on WordPress.org

Review stats

5.0

★★★★★

5 reviews

  • 5 stars: 5 reviews, 100%
  • 4 stars: 0 reviews, 0%
  • 3 stars: 0 reviews, 0%
  • 2 stars: 0 reviews, 0%
  • 1 stars: 0 reviews, 0%
Positive
100%4–5★
Mixed
0%3★
Critical
0%1–2★

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
Hashcash
Suggested:
Metric
Hashcash
Estimated installs≈ 21
Reported installs20+
Rating5.0
Reviews5
Total downloads5.9K
Authorpkaroukin
First releasedJul 1, 2014
Version1.0.14
Requires WP3.0.0
Requires PHP–
Last updatedJan 13, 2018

Alternatives to Hashcash

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

Side by side:Hashcash vs Sucuri SecurityHashcash vs Zero Spam for WordPress