Key Findings (2026 Cross-Platform Safe-Zone Benchmark):
  • 47.08% of a 1080×1920 canvas is obstructed when combining the UI exclusion zones of TikTok (with Shop/Ad CTA), Instagram Reels, and YouTube Shorts.
  • The Universal Multi-Platform Safe Box measures 756×1152 px (offset X: 108px from left, Y: 288px from top, leaving 216px on the right and 480px on the bottom).
  • TikTok Shop & Spark Ads add up to 110px of additional vertical bottom obstruction above standard organic captions, colliding with default CapCut and Premiere Pro auto-caption presets.

1. Exact 1080×1920 Pixel Exclusion Table (2026 Update)

When creators cross-post a single 9:16 video across TikTok, Instagram Reels, and YouTube Shorts, each app overlays different navigation bars, engagement rails, audio tickers, and shopping CTAs. Use the table below to configure guides in Premiere Pro, DaVinci Resolve, CapCut, or After Effects:

Platform & Placement Top Unsafe Margin Bottom Unsafe Margin Left Unsafe Margin Right Unsafe Margin Interactive Tester
TikTok (Organic + Shop / Ad CTA) 250 px (13.0%) 480 px (25.0%) 60 px (5.5%) 200 px (18.5%) TikTok Safe-Zone Checker
Instagram Reels (Feed + Reels Tab) 220 px (11.5%) 420 px (21.9%) 60 px (5.5%) 180 px (16.7%) Reels Safe-Zone Checker
YouTube Shorts (Mobile Feed) 288 px (15.0%) 440 px (22.9%) 72 px (6.7%) 196 px (18.1%) YouTube Shorts Preview
Universal 3-Platform Safe Zone 288 px (15.0%) 480 px (25.0%) 108 px (10.0%) 216 px (20.0%) Interactive Spec Widget

2. Why Burned-In Captions Fail on TikTok Shop & Paid Ads

Default auto-caption templates in most mobile editors place subtitles at Y = 1520px to 1650px on a 1920px-tall frame. While that clears a 1-line organic caption, adding a TikTok Shop product anchor, a CapCut template pill, or a "Sponsored / Learn More" CTA button pushes the bottom UI stack upward to Y = 1440px (480px from the bottom edge).

To prevent burned-in subtitles from becoming unreadable:

  • Place primary burned-in captions between Y = 1220px and Y = 1400px (or in the upper-middle third between Y = 340px and Y = 520px).
  • Keep horizontal text within X = 108px to X = 864px so the right-hand engagement icons (profile avatar, heart, comment, bookmark, share, spinning audio disc) never clip the final word of a line.

3. Pre-Flight Checklist: Safe Zones, Audio Loudness & Clean Metadata

Before publishing a high-production vertical video or launching paid social creatives, run a complete client-side pre-flight check:

  1. Overlay Clearance: Drop your MP4/MOV into the TikTok Safe-Zone Checker, Instagram Reels Safe-Zone Checker, and YouTube Shorts Preview Tool.
  2. Loudness Normalization: Check integrated LUFS and true-peak clipping in the Video Audio Checker so platform limiters don't crush your voiceover.
  3. Container Hygiene: Strip NLE software signatures and Lavf strings with the Lossless Video Metadata Remover or Video Upload Optimizer.

4. Embed the Interactive 9:16 Safe-Zone Widget on Your Site

Teaching a video editing course, running a creator newsletter, or maintaining an agency onboarding wiki? You can embed our interactive 9:16 Safe-Zone & Metadata Spec Widget for free via our Embed & Open Spec Page.

Preview Your Video Inside Real TikTok, Reels & Shorts Overlays

Drag and drop your 9:16 video to check subtitle and hook alignment in-browser—100% free and private.

Launch Free Safe-Zone Checker