Safe zone guides for Shorts, Reels and TikTok
What each platform's UI can cover, what this tool checks it against, and exactly how sure we are.
Each guide below covers one platform: what typically overlaps a bottom-of-frame subtitle, which reference regions the tool loads for it in Reference · Organic mode, where that evidence came from, and where it's still incomplete. None of these claim to cover every device, app version, or account state — see each guide's limitations section for specifics.
Placement and readability
These apply to all three platforms at once.
New to the tool itself? Start with How it works. Have a specific question? Check the FAQ.
All three at a glance
These are the regions the tool checks in Reference · Organic mode, side by side. The per-platform guides explain where each one comes from and what it doesn't cover.
| Platform | Region | x | y | Width | Height |
|---|---|---|---|---|---|
| YouTube Shorts | Top margin band | 0 | 0 | 1080 | 138 |
| Bottom margin band | 0 | 1621 | 1080 | 299 | |
| Left margin band | 0 | 0 | 46 | 1920 | |
| Right margin band | 942 | 0 | 138 | 1920 | |
| Instagram Reels | Right action rail (part over the video) | 936 | 908 | 144 | 1012 |
| Profile, follow and audio row (part over the video) | 0 | 1795 | 1080 | 125 | |
| TikTok | Top tabs and search icon (see-through, over the video) | 0 | 5 | 1080 | 120 |
| Right action rail (part over the video) | 936 | 1223 | 144 | 697 |
YouTube Shorts — Source: independent measurement · confidence medium · last verified 2026-09-13 (source date recorded in the research doc)
Instagram Reels — Source: first-party measurement · confidence medium-high · last verified 2026-09-23 (device capture date)
TikTok — Source: first-party measurement · confidence medium-high · last verified 2026-09-23 (device capture date)
Values exactly as recorded, with no safety margin added and no averaging across sources. Only these regions are checked. Real UI changes with device, app version and caption length.