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Security guides & insights

Practical advice on securing your website, explained for developers.

Website Security Audit in 60 Seconds: What to Check and Why

You don't need a penetration test to find the most common security issues. Here are the 8 things to check right now.

28 Feb 2026·5 min readweb securitysecurity audithow-to

HTTPS Isn't Enough: What Your TLS Configuration Is Getting Wrong

Having HTTPS doesn't mean your TLS setup is secure. Outdated protocols, weak ciphers, and missing HSTS can still leave you exposed.

27 Feb 2026·6 min readTLSSSLHTTPS

How to Build a Content Security Policy Without Breaking Your Site

CSP is the most powerful browser security feature and the most feared. Here's a step-by-step guide to building one that actually works.

27 Feb 2026·7 min readCSPsecurity headersweb security

The Cookie Security Checklist Every Developer Forgets

Insecure cookies are one of the easiest attack vectors on the web. Here's the checklist for Secure, HttpOnly, SameSite, and cookie prefixes.

26 Feb 2026·5 min readcookiesweb securityhow-to

Mixed Content Is Still Breaking Sites in 2026

Your site is HTTPS but loading resources over HTTP? Browsers block it, users see errors, and your security is undermined. Here's how to fix it.

25 Feb 2026·4 min readmixed contentHTTPSweb security

Vulnerable JavaScript Libraries: The Supply Chain Risk on Every Page

That jQuery version from 2019 has 3 known CVEs. Here's how to find and fix vulnerable JavaScript libraries before attackers do.

25 Feb 2026·5 min readJavaScriptsupply chainweb security

What Security Headers Does Your Site Actually Need?

Most websites are missing critical security headers. Here's what each one does, why it matters, and the exact values to set.

24 Feb 2026·6 min readsecurity headersweb securityhow-to

CORS Misconfigurations: The Vulnerability Hiding in Plain Sight

A misconfigured CORS policy can expose your users' data to any website on the internet. Here's how it happens and how to detect it.

23 Feb 2026·5 min readCORSweb securityAPI security

Why Subresource Integrity (SRI) Matters More Than You Think

Loading scripts from CDNs without integrity hashes? One compromised CDN could inject malicious code into every page on your site.

22 Feb 2026·4 min readSRIsupply chainCDN security

Is Someone Spoofing Your Domain? SPF, DKIM, and DMARC Explained

Without proper DNS records, anyone can send emails that look like they come from your domain. Here's how to lock it down.

21 Feb 2026·7 min readDNSemail securityphishing