Nginx 1.30 Changed the Upstream Defaults—Test Before You Upgrade
Nginx 1.30 defaults upstream proxying to HTTP/1.1 with keepalive enabled. Here is what to inspect, model and test before upgrading.
Performance
Prompt Cache Write Costs: Audit What Your Workflow Actually Reuses
Prompt caching saves money only when requests reuse it. Learn how to spot wasted writes, set useful cache boundaries and measure costs per completed workflow.
A stray Set-Cookie can waste your CDN: audit the cache at the edge
Cloudflare Cache Response Rules can recover wasted CDN capacity, but first you need a route-level audit of public, personal and authenticated responses.
WordPress Speculative Loading: Test the Cart, Analytics, and Cache Before Prerendering
Before enabling WordPress prerendering, test cart state, analytics, personalization, and cache load with this practical speculative loading QA plan.
NGINX 1.30 changed upstream connection reuse: what to check before you upgrade
NGINX 1.30 keeps upstream HTTP connections alive by default. Use this practical audit and rollout plan to upgrade without surprising legacy backends.
Cloudflare Cache Response Rules: Fix Headers Safely at the Edge
Diagnose Cloudflare BYPASS and DYNAMIC responses, fix cache-blocking headers with Cache Response Rules, and roll out safer edge changes.
WordPress Autoloaded Options: What the Site Health Warning Misses
WordPress Site Health can flag bloated autoloaded options, but safe fixes depend on tracing oversized or stale data, save logic, and request-path impact.
URL Parameter Sprawl: Where SEO, Caching, and Analytics Collide
How unmanaged URL parameters waste crawl budget, fragment caches, split analytics, and muddy canonical signals—and how to bring them back under control.
h2, h2c, or HTTP/1.1? Practical Choices for Real-World Stacks
Choose the right HTTP protocol for each part of your web stack, with practical Apache, NGINX and curl guidance, clearer security checks, and a measurable rollout plan.
Written recommendations from Trafik og Veje, Aarhus Municipality (2011) and AgroTech (2010).
