GateKeeper adds a reliable age gate so only age-appropriate visitors can browse and buy. The storefront gate is a lightweight (~2KB) theme app extension that won't slow your store or hurt your Lighthouse score. Choose a minimum age and style (yes/no, date of birth, or birth year), set country-specific rules, and show it site-wide or on select products. It remembers verified visitors, blocks under-age checkout, and keeps a privacy-safe audit log. No code required.

• Lightweight ~2KB age gate that won't slow your store or hurt Lighthouse scores
• Set a minimum age and verify by yes/no, date of birth, or birth year
• Country-specific age rules, e.g. 21 in the US and 18 in France
• Block under-age checkout and export a privacy-safe verification audit log