Performance and Best Practices

Last updated: February 18, 2026

1. Loader Placement

• place CMP loader as early as required for consent default timing
• avoid injecting loader multiple times across templates

2. Script Attributes

• use async/defer only when it does not break consent ordering requirements
• test ordering with Tag Assistant and browser timeline

3. Caching

• document cache TTL for CMP assets and config
• purge cache after policy-critical updates

4. Anti-Patterns to Avoid

• running multiple CMPs simultaneously
• firing analytics tags before consent defaults
• conflicting GTM templates writing consent state

5. Mobile SDK Practices

• initialize CMP once
• avoid repeated initialization across screens
• expose clear consent reopen entry point