Platform optimization for sponsored content

Time-sensitive content, last verified December 2025. Algorithm weights, length thresholds, and penalty figures below describe platform behavior as of that date, and platforms change these without notice. The structural advice (native style, early hook, captions, one CTA) ages well; the specific numbers do not. When a recommendation hinges on a specific number, check current official platform guidance with WebSearch first, and tell the user if it has changed.

TikTok (2025 algorithm updates)

Key changes

• Watch time now weighs 5x more than likes or comments
• 15-20 second engagement threshold replaced old 3-5 second hook metric
• Completion rates determine 74% of For You Page placements
• Videos 60-180 seconds achieve highest reach (2-3 min content drives 43.2% more views)
• Content under 30 seconds now faces algorithmic disadvantages

Optimal structure

• Hook in first 3 seconds (71% of viewers decide here)
• Target 75%+ completion rate
• Focus on watch time, not just likes
• Engagement velocity in first hour predicts viral potential