Performance

NGINX 1.30.0 brought upstream HTTP/1.1 keep-alive into stable as the default. That should improve latency, but it also changes how backend connections are reused, so older apps, auth paths, and inherited proxy config need a proper compatibility review.

Cloudflare's March and April 2026 cache changes turned origin-header cleanup from an app-team dependency into a staged edge-ops job. The practical opportunity now is to trace BYPASS and DYNAMIC responses, fix response headers at the edge, and improve cache behavior without waiting on origin releases.

WordPress 6.6 and 6.7 made autoload behavior easier to see and stricter in places, but the Site Health warning is still only an alert. The real performance work is figuring out which options should be autoloaded, correcting how they are written, and removing stale data without breaking anything.

URL parameters are usually added for good reasons, then quietly become a cost center. This version explains, in practical terms, how business owners, operations leads, and agency teams can reduce crawl waste, clean up duplicate URLs, and stop unnecessary cache fragmentation.