News blocks use date like tokens from context year and random picks.

Template prefer patterns let you promote new skins without deleting old files.

Append only workflow for txt data avoids merge conflicts in team editing.

Pick template files scans prefer patterns in order until matches found.

Cache files reduce repeated render cost on high traffic paths.

Engine detection limits ua classification to four major search vendors.

Template html edits do not invalidate cache until ttl expires or purge runs.

Spider only cache writes pair well with ad routing for visitor separation.

Resolve tokens runs multiple passes for nested and block placeholders.

Nginx and apache rewrite examples route all requests through index php.