# HTML Validation

> HTML Validation has 300+ active installs, a 1/5 rating from 1 reviews and 139 downloads in the last 30 days. Health score 60/100, keyword rankings, version adoption and the best alternatives.

**Verdict: Use with caution.** HTML Validation works, but test it on a staging site before relying on it in 2026. It runs on 300+ sites, is rated 1/5 and was last updated 2 months ago, and scores 60/100 on our health check.

**The HTML Validation Plugin runs in the background, identifies and reports HTML validation errors on your website. Once activated, the HTML Validation plugin uses WordPress cron to scan your website content in the…**

## Key facts

- **Overall rank:** —
- **Active installs:** 300+
- **Total downloads:** 9,853
- **Downloads (30 days):** 139 (+19.8% vs previous 30 days)
- **Rating:** 1/5 from 1 reviews
- **Health score:** 60/100 (Fair)
- **Version:** 1.0.17
- **Last updated:** Aug 16, 2026
- **Tested up to:** WordPress 7.1.3
- **Requires:** WordPress 4.6+, PHP 5.5+
- **Support resolved:** 0 of 0 threads (last 2 months)
- **Developer:** seshelby (https://pageforge.pro/directory/authors/seshelby/)
- **WordPress.org:** https://wordpress.org/plugins/html-validation/

## Category rankings

| Category | Rank | Plugins |
|---|---|---|
| [accessibility](https://pageforge.pro/directory/plugins/tag/accessibility/) | #63 | 681 |
| [code validation](https://pageforge.pro/directory/plugins/tag/code-validation/) | #1 | 1 |
| [html validation](https://pageforge.pro/directory/plugins/tag/html-validation/) | #1 | 1 |
| [html validator](https://pageforge.pro/directory/plugins/tag/html-validator/) | #1 | 1 |
| [markup validation](https://pageforge.pro/directory/plugins/tag/markup-validation/) | #1 | 2 |

## WordPress.org search positions

| Keyword | Position | Results |
|---|---|---|
| accessibility | >100 | 3,611 |
| code validation | #20 | 5,743 |
| html validation | #5 | 2,967 |
| html validator | #2 | 258 |
| markup validation | #3 | 1,190 |

## Version adoption

- 1.0: 100%

## Alternatives

| # | Name | Active installs | Rating | Updated | Health |
|---|---|---|---|---|---|
| 1 | [Web Accessibility (formally known as Ally) – WCAG Scanning, Guided Fixes, Usability Widget](https://pageforge.pro/directory/plugins/pojo-accessibility/) | 500K+ | 2.9/5 (162) | Aug 24, 2026 | 63/100 |
| 2 | [Auto Image Attributes From Filename With Bulk Updater (Add Alt Text, Image Title For Image SEO)](https://pageforge.pro/directory/plugins/auto-image-attributes-from-filename-with-bulk-updater/) | 100K+ | 4.8/5 (93) | Sep 1, 2026 | 91/100 |
| 3 | [Accessibility by UserWay](https://pageforge.pro/directory/plugins/userway-accessibility-widget/) | 80K+ | 4/5 (57) | Dec 8, 2025 | 59/100 |
| 4 | [Responsive Menu – Mobile Menu & Hamburger Menu Builder](https://pageforge.pro/directory/plugins/responsive-menu/) | 70K+ | 4.5/5 (574) | Oct 12, 2026 | 93/100 |
| 5 | [WP Accessibility](https://pageforge.pro/directory/plugins/wp-accessibility/) | 60K+ | 4.8/5 (68) | Oct 18, 2026 | 94/100 |
| 6 | [Infinity23 (Formerly Tag Manager) – One Plugin That Replaces All The Rest](https://pageforge.pro/directory/plugins/tag-manager-header-body-footer/) | 20K+ | 4.7/5 (53) | Sep 26, 2026 | 89/100 |
| 7 | [Alt Text AI – Automatically generate image alt text for SEO and accessibility](https://pageforge.pro/directory/plugins/alttext-ai/) | 20K+ | 4.7/5 (35) | Oct 22, 2026 | 89/100 |
| 8 | [My Calendar – Accessible Event Manager](https://pageforge.pro/directory/plugins/my-calendar/) | 20K+ | 4.7/5 (159) | Oct 20, 2026 | 89/100 |
| 9 | [Dark Mode – Improve Accessibility with AI Powered Dark Theme](https://pageforge.pro/directory/plugins/wp-dark-mode/) | 20K+ | 4.5/5 (390) | Sep 29, 2026 | 87/100 |
| 10 | [AccessibleWP – Accessibility Toolbar](https://pageforge.pro/directory/plugins/accessible-poetry/) | 20K+ | 4.5/5 (47) | Oct 3, 2024 | 45/100 |

## Frequently asked questions

### Is HTML Validation free?
Yes. HTML Validation is free to download and use from the official WordPress.org plugin directory.

### Is HTML Validation safe to use in 2026?
HTML Validation works, but test it on a staging site before relying on it in 2026. It runs on 300+ sites, is rated 1/5 and was last updated 2 months ago, and scores 60/100 on our health check.

### How many websites use HTML Validation?
HTML Validation is active on 300+ WordPress websites and has been downloaded 9,853 times since it launched in November 2020. It was downloaded 139 times in the last 30 days.

### Does HTML Validation work with WordPress 7.1?
Yes. The developer has tested HTML Validation up to WordPress 7.1.3, the latest release. It requires WordPress 4.6 or newer.

### What PHP version does HTML Validation need?
HTML Validation requires PHP 5.5 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.

### When was HTML Validation last updated?
The latest version, 1.0.17, was released on August 16, 2026 (2 months ago).

### Who makes HTML Validation?
HTML Validation is developed and maintained by seshelby.

### What are the best alternatives to HTML Validation?
The most popular alternatives to HTML Validation are Web Accessibility (formally… (500K+ installs), Auto Image Attributes From… (100K+ installs) and Accessibility by UserWay (80K+ installs).


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Source: live WordPress.org data · HTML version: https://pageforge.pro/directory/plugins/html-validation/ · Generated 2026-10-22 22:59 UTC by PageForge