Squarespace fix guide
Poor Cumulative Layout Shift (CLS) on Squarespace
Page elements shift during loading, hurting user experience.
Issue ID: PERF-CLS-001Severity: majorEffort: M
Why this matters
Page elements shift during loading, hurting user experience. This affects load speed, Core Web Vitals, and how many visitors stay long enough to convert.
Squarespace fix path
How to fix this on Squarespace
Trim images and custom scripts.
- 1Compress images and videos.
- 2Audit code injection and third-party scripts.
- 3Republish and run another speed test.
After you fix it
- ✓Run Lighthouse and confirm CLS < 0.1
Same fix, other platforms
Fix poor cumulative layout shift (cls) on a different CMS
Other fixes
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