Unattributed Navigation Overhead (UNO) Is Underrated

CSS Wizardry2026-08-20 19:300 views

Unattributed Navigation Overhead exposes the part of Time to First Byte that Navigation Timing cannot explain, including hidden cross-origin redirects.

Source：https://csswizardry.com/2026/08/uno-is-underrated/

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Unattributed Navigation Overhead (UNO) Is Underrated

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