Conversion rate
Definition
Percentage of visitors who complete a desired action (purchase, sign-up, quote request). A good conversion rate depends on offer quality, user journey and trust conveyed by the site.
Detailed explanation
Since 2021, Google has weighted Core Web Vitals in its ranking algorithm, with increased weight in 2024-2026. Thresholds to reach at the 75th mobile percentile: LCP below 2.5 s (good), below 4 s (acceptable); INP below 200 ms; CLS below 0.1. Typical degradation of an unoptimised WordPress site: LCP 4.8 s due to non-WebP images, INP 380 ms due to blocking JS, CLS 0.25 due to poorly configured lazy-load ads. Average gain after optimisation: +15 to +30% SEO traffic in 3 months.
Related terms
SEO (Search Engine Optimization)
Set of techniques aimed at improving a website's visibility in search engine results. SEO covers technical optimization, content quality ...
Design & UXUX (User Experience)
All perceptions and emotions a user has when interacting with a digital product or service. Good UX results from user research, clear inf...
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