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#Security headers

Security headers are short instructions a web server sends to the browser with every page. Articles tagged here explain headers such as Strict-Transport-Security, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy. Each guide describes what the header protects against in plain words. You will find ready-to-adapt examples for Apache, Nginx and common hosting setups. The articles also explain how to roll out a header safely without breaking the site. Read them when an audit reports missing or weak headers.

CORS Explained: The Misconfigurations That Expose Your Data1 de out. de 2026 · 8 min de leitura

CORS Explained: The Misconfigurations That Expose Your Data

CORS decides which other websites may read your responses. Learn how it works, the common misconfigurations that leak data, and how to set it…

CSRF Explained: How Cross-Site Request Forgery Works29 de set. de 2026 · 8 min de leitura

CSRF Explained: How Cross-Site Request Forgery Works

Cross-site request forgery tricks a logged-in browser into acting on your site. Learn how CSRF works, how tokens and SameSite cookies stop it and…

X-Content-Type-Options: nosniff and Safe MIME Types Explained28 de set. de 2026 · 8 min de leitura

X-Content-Type-Options: nosniff and Safe MIME Types Explained

X-Content-Type-Options: nosniff stops browsers from guessing file types, closing a path for disguised scripts. Learn how MIME sniffing works and how to set it.

Website Security Audit Checklist: What to Check and in What Order27 de set. de 2026 · 7 min de leitura

Website Security Audit Checklist: What to Check and in What Order

A practical website security audit checklist: HTTPS, certificates, headers, software, access, backups, DNS and e-mail, ordered by impact with clear targets.

Subresource Integrity: Protect Your Site From Tampered Scripts16 de set. de 2026 · 8 min de leitura

Subresource Integrity: Protect Your Site From Tampered Scripts

Subresource Integrity lets browsers reject third-party scripts and styles that have been changed. Learn how SRI works, when to use it and where it…

How to Add Security Headers on Apache, Nginx, WordPress and CDNs15 de set. de 2026 · 8 min de leitura

How to Add Security Headers on Apache, Nginx, WordPress and CDNs

Copy-ready examples for adding HSTS, CSP, X-Frame-Options and other security headers on Apache, Nginx, WordPress hosting and CDNs, plus how to verify them.

Permissions-Policy Header: Control Camera, Location and More8 de set. de 2026 · 8 min de leitura

Permissions-Policy Header: Control Camera, Location and More

Permissions-Policy lets you switch off browser features like camera, microphone and geolocation for your pages and embedded iframes. Here is how to set it.

Referrer-Policy Header: Which Value to Use and Why It Matters7 de set. de 2026 · 8 min de leitura

Referrer-Policy Header: Which Value to Use and Why It Matters

Referrer-Policy controls how much of your page URLs other sites see. Learn what each value does, the safe default, and how it affects analytics…

How to Get an A Grade in an SSL Server Test: A Practical Guide4 de set. de 2026 · 8 min de leitura

How to Get an A Grade in an SSL Server Test: A Practical Guide

A poor SSL test grade usually comes from old protocols, weak ciphers, chain issues or missing HSTS. Learn what the tests check and how…

security.txt: How to Add a Security Contact to Your Website31 de ago. de 2026 · 8 min de leitura

security.txt: How to Add a Security Contact to Your Website

A security.txt file tells researchers how to report vulnerabilities on your site. Learn the required fields, where to place it and how to handle…

WordPress Security Checklist: 20 Steps That Actually Matter19 de ago. de 2026 · 8 min de leitura

WordPress Security Checklist: 20 Steps That Actually Matter

A practical WordPress security checklist for owners and agencies: updates, plugins, logins, backups, HTTPS, headers and monitoring, ordered by real impact.

Clickjacking Protection: X-Frame-Options vs frame-ancestors17 de ago. de 2026 · 8 min de leitura

Clickjacking Protection: X-Frame-Options vs frame-ancestors

Clickjacking tricks visitors into clicking hidden buttons on your site inside another page. Learn how X-Frame-Options and CSP frame-ancestors stop it.

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