One click • Many systems

Follow the request. Find the first broken promise.

A browser click crosses several trust boundaries before an application responds. Explore the path and see what each layer promises—and what it cannot prove.

Explore↓

LAYER 01

The browser starts with state.

Cache, cookies, extensions, service workers, and local policy can change the path before the first packet leaves.

Question: does a clean session reproduce it?

Diagnostic discipline

Green at one layer does not clear the next.

Successful DNS proves a name resolved. It does not prove the route, certificate, edge policy, origin, session, or application behavior. Good diagnosis keeps those promises separate.

Start where the user starts, capture time, and move through the path until the first divergence appears.