Plimie blog
Notes on infrastructure reviews
Notes from the Plimie team on infrastructure reviews, evidence, and what to improve next.
Your CDN cache hit ratio is lying to you
A healthy-looking cache hit ratio can hide a lot of origin traffic. Here's how cookies, query strings, and cache headers skew it, and what to check.
Tiered caching: the checkbox that cuts origin load and almost nobody checks
Tiered caching lets edge locations ask each other before asking your origin. What it does, when it helps, and how to tell whether yours is on.
You're paying for a WAF. Is it actually blocking anything?
Rules stuck in log-only mode and managed rulesets that were never deployed are easy to miss. Here's a 10-minute self-check for your WAF.