# Sullivan Compatibility Plugin

> Sullivan Compatibility Plugin has 100+ active installs and 64 downloads in the last 30 days. Health score 25/100, keyword rankings, version adoption and the best alternatives.

**Verdict: Consider an alternative.** Sullivan Compatibility Plugin shows warning signs in 2026 — compare the alternatives below before installing. It runs on 100+ sites and was last updated 9 years ago, and scores 25/100 on our health check.

**Compatibility plugin for the WordPress theme Sullivan (sullivan).**

## Key facts

- **Overall rank:** —
- **Active installs:** 100+
- **Total downloads:** 5,892
- **Downloads (30 days):** 64 (+16.4% vs previous 30 days)
- **Rating:** No ratings yet
- **Health score:** 25/100 (At risk)
- **Version:** 1.0.4
- **Last updated:** Mar 26, 2018
- **Tested up to:** WordPress 4.8.32
- **Requires:** WordPress 4.4+, PHP 5.2.4+
- **Support resolved:** 0 of 0 threads (last 2 months)
- **Developer:** Anders Norén (https://pageforge.pro/directory/authors/anlino/)
- **WordPress.org:** https://wordpress.org/plugins/sullivan-compatibility/

## Category rankings

| Category | Rank | Plugins |
|---|---|---|
| [compat](https://pageforge.pro/directory/plugins/tag/compat/) | #2 | 2 |
| [compatibility](https://pageforge.pro/directory/plugins/tag/compatibility/) | #6 | 30 |
| [sullivan](https://pageforge.pro/directory/plugins/tag/sullivan/) | #1 | 1 |

## WordPress.org search positions

| Keyword | Position | Results |
|---|---|---|
| compat | >100 | 308 |
| compatibility | >100 | 10,000 |
| sullivan | #6 | 8 |

## Version adoption

- 1.0: 100%

## Alternatives

| # | Name | Active installs | Rating | Updated | Health |
|---|---|---|---|---|---|
| 1 | [PHP Compatibility Checker](https://pageforge.pro/directory/plugins/php-compatibility-checker/) | 200K+ | 2.7/5 (131) | Jul 20, 2026 | 59/100 |

## Frequently asked questions

### Is Sullivan Compatibility Plugin free?
Yes. Sullivan Compatibility Plugin is free to download and use from the official WordPress.org plugin directory.

### Is Sullivan Compatibility Plugin safe to use in 2026?
Sullivan Compatibility Plugin shows warning signs in 2026 — compare the alternatives below before installing. It runs on 100+ sites and was last updated 9 years ago, and scores 25/100 on our health check.

### How many websites use Sullivan Compatibility Plugin?
Sullivan Compatibility Plugin is active on 100+ WordPress websites and has been downloaded 5,892 times since it launched in March 2018. It was downloaded 64 times in the last 30 days.

### Does Sullivan Compatibility Plugin work with WordPress 7.1?
Sullivan Compatibility Plugin is officially tested up to WordPress 4.8.32, while the latest release is 7.1.2. It may still work, but try it on a staging site first.

### What PHP version does Sullivan Compatibility Plugin need?
Sullivan Compatibility Plugin requires PHP 5.2.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.

### When was Sullivan Compatibility Plugin last updated?
The latest version, 1.0.4, was released on March 26, 2018 (9 years ago).

### Who makes Sullivan Compatibility Plugin?
Sullivan Compatibility Plugin is developed and maintained by Anders Norén.

### What are the best alternatives to Sullivan Compatibility Plugin?
The most popular alternatives to Sullivan Compatibility Plugin are PHP Compatibility Checker (200K+ installs).


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Source: live WordPress.org data · HTML version: https://pageforge.pro/directory/plugins/sullivan-compatibility/ · Generated 2026-09-30 10:41 UTC by PageForge