Digital Insights

Quick Guide: Speeding Up Your Website to Pass Core Web Vitals

October 10, 2026

Site speed isn’t just about visitor comfort — it directly affects your Google ranking and ad revenue. The faster a page loads, the more likely a visitor sticks around long enough to see (and click) an ad.

3 Metrics That Matter

1. LCP (Largest Contentful Paint) — how fast the largest visible element (usually a hero image or headline) finishes loading. Target under 2.5 seconds.
2. CLS (Cumulative Layout Shift) — how stable the layout stays while loading. Avoid images without explicit dimensions or ads that push content around suddenly.
3. INP (Interaction to Next Paint) — how responsive the page feels when clicked or tapped.

Practical Steps

• Use modern image formats (WebP/AVIF) and always set explicit width/height.
• Cut unnecessary JavaScript — a static site (like one built with Astro) ships minimal JS to the browser.
• Reserve space for ad slots before they load, so they don’t shift content around (a common cause of high CLS).
• Use font-display: swap for custom fonts so text stays readable while the font loads.

With a clean technical foundation, your site becomes more favorable to search engines while giving readers a better experience — two things that compound into better long-term ad revenue.