Frequently Asked Questions
Everything you need to know about improving your Core Web Vitals with Fast Edge Cache™.
1. How does Fast Edge Cache™ improve my Core Web Vitals?
Fast Edge Cache™ targets every key Core Web Vitals metric. It reduces TTFB by 50-80% through edge caching, improves LCP by 40-60% with automatic image optimization, and delivers sub-1-second FCP by serving cached content from the nearest edge server to your visitors.
2. What TTFB reduction can I expect?
Most customers see TTFB drop from 600-1200ms down to 120-250ms — a 50-80% reduction. Because Fast Edge Cache™ serves content from edge servers close to your visitors, the round-trip time to your origin server is eliminated for cached requests.
3. Will this help my Google PageSpeed Insights score?
Yes. Our customers typically see their PageSpeed Insights score increase by 30-50 points. By improving TTFB, LCP, and FCP simultaneously, Fast Edge Cache™ addresses the metrics Google uses to evaluate page experience and search ranking.
4. How does image optimization improve LCP?
Large images are one of the biggest causes of poor LCP scores. Fast automatically converts images to WebP format (25-35% smaller), resizes them for each device, and serves them from edge servers — reducing LCP from 4-5 seconds to under 2 seconds on most sites.
5. Do I need to change any code on my site?
No. Fast Edge Cache™ works at the DNS level — simply update your DNS records to point to our edge servers. All caching, image optimization, and performance improvements happen automatically with zero code changes required.
6. Which platforms does Fast support?
Fast works with any website or platform. WordPress sites see TTFB drop to 180ms, Shopware to 200ms, WooCommerce to 190ms, Magento to 250ms, and Drupal to 160ms. Custom applications and any other web platform benefit from the same Core Web Vitals improvements.
7. How quickly can I get started?
Setup takes just 5-10 minutes. Enter your domain, update your DNS records, and your Core Web Vitals start improving immediately. Most customers see green PageSpeed scores within 15 minutes of DNS propagation.
8. What about INP and other interaction metrics?
While Fast Edge Cache™ primarily targets TTFB, LCP, and FCP, it also benefits Interaction to Next Paint (INP) indirectly. By offloading static assets and images to edge servers, your origin server has more resources to handle dynamic interactions faster.
Have more questions? Contact at anytime for additional help.