Fictional systems lab · 30 local days

Rotation
Window

Move three moments. Watch a zero-downtime credential change become calm, exposed, or briefly broken.

Credential lifecycle

Inspecting day 0
D0D5D10D15D20D25D30
OLD VALID
NEW VALID
TRAFFIC
New issuedDay 6
Traffic switchesDay 12
Old revokedDay 17

The tiny model

A fictional old credential starts valid. A replacement is issued, application traffic switches, then the old one is revoked. Sequence and spacing—not a score—reveal the tradeoff.

Try making it break

Drag a colored marker, use the ± buttons, or pick a preset. Revoke before switching to expose an availability gap. Replay shows the month passing.

Fictional data · runs entirely in this browser