Practical, no-fluff writeups on performance, security, browser auditing, and code quality.
More guides
How an invisible iframe can trick a user into clicking something they never saw, and the header that stops your pages from being framed at all.
What each file actually controls, the mistakes that accidentally block crawlers (human search engines and AI ones alike), and how to verify both are configured correctly.
2xx, 3xx, 4xx, 5xx - what each range signals to a browser, a crawler, and a user, and the status code mistakes that quietly cost you SEO or break automation.
JSON-LD that validates but still doesn't earn a rich result, and the concrete checks that separate structured data that works from structured data that merely exists.
The handful of API security mistakes that show up constantly - missing rate limits, weak auth, and overly permissive CORS - and what a reasonable baseline actually looks like.
Containers running as root, missing resource limits, overly broad RBAC - the Kubernetes manifest mistakes that pass code review because nothing about them looks obviously wrong.
Why three redirects in a row quietly costs you crawl budget, page speed, and link equity, and how to find and flatten every chain on your site.
Why a container built from a stale base image ships known CVEs by default, and how image scanning catches it before it reaches production.
What LCP, INP, and CLS actually measure, why they affect your Google ranking, and a prioritized checklist to fix them.
