What is Scroll Depth?
TL;DR
Measurement of how far down the page visitors scroll, typically tracked at 25%, 50%, 75%, and 90% thresholds. Google-analytics-4 tracks scroll events automatically with enhanced measurement enabled. Scroll depth reveals content engagement beyond pageviews. If most visitors only scroll 25% of your 3,000-word article, either the beginning isn't compelling enough to continue, or the content is too long. High scroll depth indicates engaged readers. Low scroll depth on critical pages (pricing, services) means visitors aren't seeing information below the fold. Use scroll data to prioritize above-fold content placement, identify article length sweet spots, and understand where attention drops. Combine with Heat Mapping for richer engagement insights.
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Frequently Asked Questions About Scroll Depth
What does scroll depth tell me about my content?
Whether people actually read your content or just glance and leave. If most visitors only scroll 25% of a long article, the intro isn't hooking them, or the content is too long. High scroll depth means engaged readers.
How does GA4 track scroll depth?
With enhanced measurement enabled, GA4 automatically tracks a scroll event when visitors reach 90% of page depth. For more detailed thresholds (25%, 50%, 75%), you'll need custom event tracking through Google Tag Manager.
What's a good scroll depth percentage?
Depends on page purpose. For service/pricing pages, aim for 90%+ since all information matters. For blog posts, 50-70% is typical, some readers find their answer early. Compare pages against each other rather than absolute benchmarks.
How do I improve scroll depth on important pages?
Hook readers immediately with compelling headlines. Use visual breaks, subheadings, and images to maintain interest. For long pages, place key information throughout rather than burying it at the bottom.
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