Security Headers

HTTP Headers

• Securityheaders in .htaccessHeader always set Strict-Transport-Security 'max-age=31536000; includeSubDomains; preload'
• Securityheaders in web.configxml
• Securityheaders in ssl.confGuide to implementing essential security headers in your Apache ssl.conf or virtual host configuration.
• Set Cookie header exampleComplete guide to implementing secure cookie headers with proper security attributes for protecting user sessions and data.
• Content Security Policy header exampleComplete guide to implementing Content Security Policy (CSP) headers for website security.
• Permission Policy exampleComplete guide to implementing Permissions-Policy (formerly Feature-Policy) headers for controlling browser features and enhancing privacy.
• cross origin headersGuide to implementing Cross-Origin Resource Sharing (CORS) and Isolation headers (COOP, COEP, CORP) for web security.

SSL & General

• Security Header Must HavesChecklist and explanation of the essential HTTP security headers you must implement on every website in 2025.
• Cipher Suites in OpenSSL 1.1.1 tm OpenSSL 3.0.15 voor TLSv1.3Guide to configuring secure Cipher Suites for OpenSSL 1.1.1 through 3.0+ to ensure strong encryption and compatibility.
• MOZILLA PKIX ERROR REQUIRED TLS FEATURE MISSING# MOZILLA_PKIX_ERROR_REQUIRED_TLS_FEATURE_MISSING
• Do's and don'tsStart with a clean installation of your server and install the updates.