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Thumbnails & Visual CTR Optimization

Headline uses all-caps lettering with insufficient tracking, causing letters to merge.

Problem

Headline uses all-caps lettering with insufficient tracking, causing letters to merge.

Solution

Root Cause / Diagnostic:
Setting ultra-heavy sans-serif fonts in full capitals with default or negative tracking causes individual character glyphs to touch. When downsampled to 320x180 resolution on mobile, anti-aliasing bridges the microscopic gaps between letters, turning words into solid black or white bars. This renders headlines illegible during fast browsing.

Actionable Fix:
1. Adjust typographic tracking/letter-spacing in your design suite to +30 to +60 units to preserve clear negative channels between glyphs.
2. Avoid ultra-condensed font variants if letter counters (the open spaces inside letters like 'O', 'P', 'R') collapse below 4 pixels.
3. Test downscaled rendering at 100px width; ensure individual characters maintain distinct optical silhouettes without bridging.

Pro Tip:
Slightly expanded tracking on bold uppercase text preserves individual character silhouettes, cutting cognitive decoding time by half.