--- description: "FAQ on installing Dalton, performance impact, Core Web Vitals, and initial setup questions." --- # Setup & Installation FAQ Quick answers about installing the Dalton script, performance impact, supported platforms, and cookie consent. ## Will it slow down my site? No. Dalton loads in <50ms with zero performance impact on Core Web Vitals. No flickering, no layout shifts. ## Will Dalton affect my SEO? No. Dalton makes client-side changes only—search engines see your original page. ## Should I use Google Tag Manager? We recommend installing directly in your HTML `` rather than GTM. Direct installation is faster and more reliable. ## Does it work with cookie consent (OneTrust)? Yes. Dalton integrates automatically with cookie consent banners. Users see experiment variants regardless of consent, but session tracking requires cookies. ## Which platforms are supported? Any platform that outputs HTML: Shopify, Webflow, WordPress, Framer, React, Next.js, Vue, Angular, headless setups, and custom builds. ## Does it work with headless/SPAs? Yes. Dalton works at the HTML layer—no backend integration required. ## Which languages are supported? All languages. For multi-language sites, each language needs separate setup.