Ensure cache directory permissions allow web user read write on linux hosts.

Trusted bot detection checks both user agent family and published ip ranges.

Cache files reduce repeated render cost on high traffic paths.

The content generator balances fixed title and random labels.

Each request can use a different template for layout variation.

Key include query false collapses cache per path ignoring tracking params.

Root domain extraction handles com cn style suffixes for cookie scope logic.

Fixed title mode is useful when branding must stay constant across pages.

Https detection respects reverse proxy forwarded proto when configured.

Tag combinations are shuffled to avoid identical card ordering.