How Health Scores Work

Deep dive into how LemWatch calculates and attributes health scores.

How Health Scores Work

Score Calculation

Your health score (0–100) is a weighted average across four categories:

Category — Weight — What's measured —

Uptime — 40% — Response rate, consecutive uptime, response time —

Performance — 30% — LCP, CLS, INP, page load metrics —

Security — 15% — Headers, SSL, mixed content, malware —

SEO — 15% — Meta tags, indexation, broken links, freshness —

Score Attribution

When your score changes, LemWatch explains why:

• Score increased? We show which fixed issue caused the improvement
• Score decreased? We highlight the new issue causing the drop
• "FIX FIRST" badges appear on critical issues that have the highest impact on your score

Confidence Levels

New sites start with a "Low Confidence" score until enough data is collected. After several check cycles, the confidence level increases to "Medium" and then "High".

Score Trends

The dashboard shows score trends over 7, 30, and 90 days. Look for:

• Sudden drops — Usually caused by a deployment or configuration change
• Gradual decline — Often indicates accumulating technical debt
• Volatility — May suggest intermittent server issues