Capture a snapshot of your site metrics and compare future checks against it.
Baseline Comparisons
Pro Plan and Above
Baselines let you capture a "known good" snapshot of your site's metrics, then compare all future checks against it.
When to Use Baselines
Before a deployment — Capture baseline, deploy, compare to catch regressions
After fixing issues — Set a new baseline as your improved benchmark
Quarterly reviews — Track progress by comparing against previous quarter's baseline
How to Create
Go to your site's Baselines tab
Click "Create Baseline"
Name it (e.g., "Pre-v2.0 Launch", "Q1 2026 Benchmark")
Optionally add a description
LemWatch captures current metrics:
Performance scores (mobile + desktop)
Core Web Vitals (LCP, CLS, INP)
Response time
Security grade
SEO score
Uptime percentage
Comparing Against Baselines
On the site detail page, select a baseline from the dropdown to see a side-by-side comparison of all metrics. Improvements show in green, regressions in red.
Multiple Baselines
Keep multiple baselines per site to track progress over time. Mark one as "active" to use as the default comparison point.