What Does the WordPress Site Health Tool Actually Check?
What Site Health Actually Checks
The tool runs a series of automated checks covering server environment (PHP version, required extensions), security-relevant settings (HTTPS, file editing permissions), performance-related factors (whether recommended caching or object caching is detected), and whether background processes like scheduled tasks are functioning. Results are grouped into "Critical" issues and "Recommended improvements," giving a rough sense of priority.
How to Interpret the Results
- Critical issues genuinely deserve prompt attention — these tend to represent real, functional problems (an outdated PHP version well past its own support window, for instance).
- Recommended improvements are more of a mixed bag, ranging from genuinely valuable suggestions to items that may not apply meaningfully to every site's specific situation — use judgment rather than treating every recommendation as mandatory.
- The Info tab (separate from the health check results) provides detailed environment information useful when seeking technical support, since it exports a comprehensive snapshot of the site's configuration.
- This tool doesn't replace a full security scan or performance audit, since it checks a defined set of common factors rather than performing deep, site-specific analysis.
Using Site Health Effectively
- Check Site Health periodically, not just when something already seems wrong.
- Address Critical issues promptly.
- Evaluate Recommended items against the specific site's actual needs rather than treating every one as mandatory.
- Use the Info tab's export when seeking technical support, to provide detailed environment context quickly.
Need help addressing issues Site Health has flagged? See WordPress bug fix.