Updated April 18, 2026

What is the ideal landing page load time?

Aim for Largest Contentful Paint (LCP) under 2.5 seconds and Interaction to Next Paint (INP) under 200ms. Google's data shows each additional second of load time increases bounce probability by ~32%. Pages above 3 seconds typically lose 25–40% of mobile visitors before render. Page-speed gains compound — a faster page also ranks higher in Google.

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The Core Web Vitals thresholds

Google's Core Web Vitals define three measurable speed targets: LCP (when the largest above-the-fold element renders) under 2.5s, INP (response to user interaction) under 200ms, and CLS (visual stability) under 0.1. Pages meeting all three are labeled "Good" in PageSpeed Insights and get a ranking boost. Pages above the "Poor" threshold (LCP >4s, INP >500ms, CLS >0.25) are visibly punished in mobile rankings.

What to fix first

Almost always: the hero image. It's the LCP element on 80%+ of landing pages. Compress it (WebP/AVIF, not PNG), serve responsive sizes, set explicit width/height to prevent CLS, and preload the critical version. Second priority: defer or remove third-party scripts loading above the fold (chat widgets, analytics, tag managers — they push real INP into the danger zone).

The conversion math

Google's research with Deloitte across 70 brands showed a 0.1-second improvement in mobile load time lifted conversion by 8.4%. Cumulatively, dropping LCP from 4s to 2s typically recovers 25–35% of lost conversions. Run your page through PageSpeed to see where you stand against the thresholds.

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Related questions

Does page speed affect conversion rates?

Yes, dramatically. Each additional second of load time increases bounce probability by ~32% (Google), and conversion rates drop 7% per second saved on LCP (Akamai). The effect compounds on mobile, where slow connections amplify every wasted millisecond. Pages above 4 seconds typically lose 40–60% of mobile visitors before they ever see the content.

What is Largest Contentful Paint (LCP)?

Largest Contentful Paint (LCP) is the moment the biggest visible element above the fold finishes rendering — usually the hero image, hero video poster, or a large headline block. Google's threshold for "good" LCP is under 2.5 seconds. LCP is one of three Core Web Vitals and a confirmed ranking signal in mobile search.

What makes a landing page effective?

An effective landing page does six things at once: states the outcome clearly in the headline, uses a single primary CTA, provides three or more concrete trust signals above the fold, loads in under 2.5 seconds, addresses the visitor's specific objection, and matches the message of the traffic source. Most pages do one or two well; the top 5% do all six.

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