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Thumbnail text

On-thumbnail text used to add a secondary hook.

Thumbnail text adds a second hook layer on top of the visual. It works best when the visual answers 'what' and the text answers 'so what'.

Most effective text is 2–5 words, bold, with high contrast against the background.

Text on thumbnails decays in legibility on small surfaces; always preview at 100x100 px.

Why it matters

Adding the right text typically lifts CTR by 0.5–1.5 percent absolute. Adding the wrong text depresses CTR by the same range.

How to improve it

  • 01Limit text to 5 words.
  • 02Use a single, bold font with high contrast.
  • 03Test text vs. no-text variants on the same thumbnail.
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Related terms

Thumbnail psychology

The cognitive triggers that make a thumbnail feel clickable before the title is even read.

Packaging

The combined unit of title and thumbnail as the audience encounters them.

Thumbnail contrast

The luminance and color separation that makes a thumbnail readable at small sizes.