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HTML Validation

by seshelby · Uncategorized

Also makes 5 other plugins · 3.5K+ installs across the portfolio →

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

⚠ Few reviews
How scoring works →
81 Health · B
Maintenance 100/100
Rating quality 67/100
Support 70/100

81 health vs 56 average across 16,378 Uncategorized 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.

88 / 100

Excellent listing optimization

Biggest win: Rating quality

Update recency 100/100
WP compatibility 100/100
Rating quality 50/100
Listing tuning 100/100

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 2022-10-05 · 1,425 days · wp.org + Plugin Pulse archive

+74% vs prior 30d
3Downloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

134

now · peak 764

13430d downloads · Aug 26

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

HTML Validation · #10120 you Web Accessibility (f · #116 Auto Image Attribute · #425 Accessibility by Use · #504

Update activity

How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.

447per 1k installs · Aug 26

Release cadence

Occasionally updated
from wp.org release tags

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

1

releases in the last 12 months

2mo ago

latest release · v1.0.17

7

tagged releases on record

Recent releases

1.0.17 · 2mo ago1.0.16 · 1.4y ago1.0.15 · 2.1y ago1.0.14 · 2.1y ago1.0.13 · 2.7y ago1.0.12 · 2.7y ago1.0.11 · 3.5y ago

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 100% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v1.0 100%

Estimated active installs

The public count shows “300+”. Our estimate pins where the real number sits.

tracked estimate
300–400 ≈350

Refined from the date this plugin crossed into its current band.

Install history · since 2022-10-04 · 1,390 observations

300Installs · Aug 26

Estimated value

What this plugin might earn a year, and what it might sell for. Modeled from public signals; we don't see anyone's books.

Est. annual revenue

N/A

Est. acquisition value

N/A

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

Details

Version
1.0.17
Last updated
14d ago
Added
2020-11-08 · 5 yrs old
Requires WP
4.6
Tested up to
7.1
Requires PHP
5.5

Recent reviews

All reviews on wp.org ↗
  1. floridagameshow
    3.0y ago

    Got this for my website and purchased the pro version. It gives me a report (mine was 5,500 items) but there is nothing to fix the problems. No actionable buttons so far as I can tell. So, it’s junk that I’ve wasted time and money on. This topic was modified 2 years, 10 months ago by floridagameshow.

    Read on wp.org ↗

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 6.8.3

Low memory footprint
Low page-speed impact
Runs on latest PHP + WP
No PHP errors
No JS errors
Activates cleanly
No resource errors
No external HTTP errors
Optimized database use
Frequently updated

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

  1. 2026-07-10 400+ → 300+ down after 557 days in tier
  2. 2024-12-30 500+ → 400+ down after 771 days in tier
  3. 2022-11-20 400+ → 500+ up

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).

Compare head to head →

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Preview card ↗

HTML Validation: 300+ active installs, 1.0★ (1 reviews). Plugin Pulse (WP Mayor), as of 2026-08-30. https://plugins.wpmayor.com/plugin/html-validation