Mobile-First Indexing Is Complete: Desktop Scores Don't Matter Anymore
Google completed mobile-first indexing January 2026. Desktop PageSpeed scores are now ignored. Only mobile speed affects your ranking. 73% of sites still optimize desktop first.
Real-world insights on Core Web Vitals, SEO impact, and revenue optimization for high-performing websites.
LCP, INP, CLS metrics that directly impact rankings
How page speed affects Google search rankings
Converting speed improvements into business results
AVIF averages 35% smaller than WebP, 70% smaller than JPEG. But AVIF takes 2 seconds per image to encode. We tested 1,000 real website images to determine which format actually wins.
Jacksonville averages 3.2s load time. Orlando averages 2.9s. That 0.3-second gap costs Jacksonville businesses $480 million annually in lost revenue.
Facebook and Instagram now measure landing page load times. Slow pages get 35% fewer impressions. Even if your ad is approved, Meta suppresses it if the page loads slow.
A 2-second improvement from 4.2s to 2.2s increases conversions by 38%. For a $50K/month business, that's $19,000 in monthly revenue.
Google replaced First Input Delay with Interaction to Next Paint in March 2024. 68% of sites that passed FID now fail INP.
Traditional hosting serves from one location. CDNs distribute globally. Benchmark: Traditional hosting 3.8s avg. CDN 1.6s avg. That's a 2.2 second difference.
We audited 10,000 Florida websites. Construction sites average 4.2s load time costing $180K/year. Real estate at 3.8s. Legal at 5.1s.
Site speed impacts Google Ads Quality Score. A 1-second delay drops your score by 0.5-1 points. That costs you 15-20% more per click.
Google tightened Core Web Vitals enforcement between 2024-2025. Sites loading in 3-4 seconds now lose to competitors loading under 2.5 seconds. INP replaced FID. Mobile-first indexing is now exclusive.
Google ranks websites based on three Core Web Vitals: LCP, INP, and CLS. Sites passing all three get ranking preference. Sites failing lose 15-30% of organic traffic.
One second of delay reduces conversions by 7%, page views by 11%, and customer satisfaction by 16%. A site earning $100K monthly loses $7K/month per extra second.
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