Full url construction includes query string when cache key includes query.

Hit cache responses skip render entirely for lowest latency paths.

Footer fine print can show generation date and spider oriented labels.

Local php built in server is sufficient for tag and template development tests.

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

Zh en map longest match replacement handles multi character industry terms.

Write mode all caches every render including tests use carefully in production.

Utf8 encoding is assumed for chinese entries in map and diy files.

Engine detection limits ua classification to four major search vendors.

Tmp plus rename cache writes reduce risk of partial files under concurrency.