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HTML Validation

v1.0.17

by seshelby · updated 2 months ago

The HTML Validation Plugin runs in the background, identifies and reports HTML validation errors on your website. Once activated, the HTML Validation …

accessibilitycode validationhtml validationhtml validatormarkup validation
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#10,006
No change0 vs yesterday
Active installs (est.)
≈ 368
300+ reported · High
Total downloads
9.9K
9,941 all-time
Rating
1.0/5
1 reviews
Support resolved
–
0 of 0 threads, last 2 months
Growing·Downloads +50% (30d)·Toward 400+ · ETA ~6d

HTML Validation at a glance

HTML Validation is a WordPress plugin by seshelby with 300+ active installs, the #10,006 most popular plugin on WordPress.org. On a typical day it’s downloaded about 5 times, 50% more than the month before. It’s rated 1.0 out of 5 from 1 review. Version 1.0.17 came out on Aug 16, 2026 and is tested up to WordPress 7.1.4. It leads the 2 plugins tagged “markup validation”. It was first released in 2020.

Chart time range

Applies to every chart below. History from Oct 9, 2026, 31 days.

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

Downloads over time

Download stats

125 downloads · the last 30 days

Downloads over time
HTML Validation Compare series
Downloads over time: 25 days across 1 series.510Oct 9Oct 13Oct 17Oct 21Oct 25Oct 29Nov 2Oct 29, 2026: Tested up to 7.1.4
View as table
DateHTML Validation
Nov 2, 202610
Nov 1, 20267
Oct 31, 20264
Oct 30, 20263
Oct 29, 20263
Oct 28, 20265
Oct 27, 20264
Oct 26, 20268
Oct 25, 20265
Oct 24, 20266
Oct 23, 20264
Oct 22, 20265
Oct 21, 20265
Oct 20, 20261
Oct 19, 202611
Oct 18, 20264
Oct 17, 20262
Oct 16, 20262
Oct 15, 20265
Oct 14, 20269
Oct 13, 20267
Oct 12, 20261
Oct 11, 20263
Oct 10, 20267
Oct 9, 20264

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 367 · -0.3% in the last 30 days

Estimated installs
Estimated installs: 12 days across 1 series.365366367368Oct 27Oct 29Oct 31Nov 2Nov 4Nov 8Oct 29, 2026: Tested up to 7.1.4
View as table
DateEstimated installs
Nov 8, 2026367
Nov 7, 2026367
Nov 5, 2026366
Nov 4, 2026367
Nov 3, 2026366
Nov 2, 2026365
Nov 1, 2026365
Oct 31, 2026365
Oct 30, 2026365
Oct 29, 2026365
Oct 28, 2026367
Oct 27, 2026368

Rank over time

#10,006 · up 30 in the last 30 days

Popular rank
Popular rank: 13 days across 1 series.#10K#10K#10K#10.1KOct 27Oct 29Oct 31Nov 2Nov 4Nov 6Nov 8Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 8, 2026#10,006
Nov 7, 2026#10,006
Nov 6, 2026#10,002
Nov 5, 2026#10,022
Nov 4, 2026#10,006
Nov 3, 2026#10,040
Nov 2, 2026#10,043
Nov 1, 2026#10,036
Oct 31, 2026#10,048
Oct 30, 2026#10,049
Oct 29, 2026#10,059
Oct 28, 2026#10,035
Oct 27, 2026#10,036

Growth %

Average -0.02% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 11 days across 1 series.-0.5%0%0.5%Oct 28Oct 30Nov 1Nov 4Nov 8
View as table
DateGrowth
Nov 8, 20260.00%
Nov 7, 2026+0.14%
Nov 5, 2026-0.27%
Nov 4, 2026+0.27%
Nov 3, 2026+0.27%
Nov 2, 20260.00%
Nov 1, 20260.00%
Oct 31, 20260.00%
Oct 30, 20260.00%
Oct 29, 2026-0.55%
Oct 28, 2026-0.27%

Active installs band

300+ on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 13 days across 1 series.290300310Oct 27Oct 29Oct 31Nov 2Nov 4Nov 6Nov 8Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 8, 2026300+
Nov 7, 2026300+
Nov 6, 2026300+
Nov 5, 2026300+
Nov 4, 2026300+
Nov 3, 2026300+
Nov 2, 2026300+
Nov 1, 2026300+
Oct 31, 2026300+
Oct 30, 2026300+
Oct 29, 2026300+
Oct 28, 2026300+
Oct 27, 2026300+

Search rankings

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

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Track this plugin to check its position for the searches you choose, daily, with an alert when it moves.

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Change log

From our daily snapshot of WordPress.org
  1. Rank #10035 → #10022
    • Tested up to 7.1.3 → 7.1.4

Versions in use

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

  • v1.0100%

Rating trend

1.0★★★★★1 reviews · steady in the last 30 days

Requirements & info

Version history
Version
1.0.17
Requires WordPress
4.6
Tested up to
7.1.4
Requires PHP
5.5
First released
Nov 8, 2020
Last updated
Aug 16, 2026
Releases, last 12 months
…

Questions about HTML Validation

How many websites use HTML Validation?

HTML Validation is active on 300+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #10,006 most popular plugin on WordPress.org.

How many times has HTML Validation been downloaded?

9,941 times in total since 2020. On a typical day it’s downloaded about 5 times. See download stats

When was HTML Validation last updated?

Version 1.0.17 came out on Aug 16, 2026 (2 months ago).

Is HTML Validation compatible with the latest WordPress?

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

Is HTML Validation still maintained?

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

What rating does HTML Validation have?

1.0 out of 5 from 1 review on WordPress.org.

What are the best alternatives to HTML Validation?

The plugins most like HTML Validation, by the tags they share, are Able Player, accessible HTML5 media player (300+).

Latest reviews

Analyze reviews
All reviews on WordPress.org

Review stats

1.0

★★★★★

1 reviews

  • 5 stars: 0 reviews, 0%
  • 4 stars: 0 reviews, 0%
  • 3 stars: 0 reviews, 0%
  • 2 stars: 0 reviews, 0%
  • 1 stars: 1 reviews, 100%
Positive
0%4–5★
Mixed
0%3★
Critical
100%1–2★
  • About 1 more 5★ reviews would lift it to 1.1.

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
HTML Validation
Suggested:
Metric
HTML Validation
Estimated installs≈ 368
Reported installs300+
Rating1.0
Reviews1
Total downloads9.9K
Authorseshelby
First releasedNov 8, 2020
Version1.0.17
Requires WP4.6
Requires PHP5.5
Last updatedAug 16, 2026

Alternatives to HTML Validation

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

Side by side:HTML Validation vs Able Player, accessible HTML5 media player

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