Practical, no-fluff writeups on performance, security, browser auditing, and code quality.
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Both are free and both check security headers - here's what actually differs, and when you'd genuinely want one over the other (or both).
Why a single CSS or JS file can hold your entire page hostage before the first pixel paints, how to spot the actual blockers in your waterfall, and the fixes that work.
Every third-party script you load is code execution on your site by a company you don't control - what SRI actually verifies, and where it can and can't help.
Why a link can look perfect in the browser and broken when shared on Slack or Twitter, and the specific Open Graph tags that control what people actually see.
Why a redirect parameter that accepts any URL turns your own trusted domain into free phishing infrastructure, and how to lock it down.
A practical comparison of the top cross-browser and real-browser testing tools - including Scanverra - for catching broken links, JS errors, and rendering bugs.
How a malicious page can make a logged-in user's own browser perform actions they never intended - and the tokens, cookie flags, and headers that actually stop it.