Turning on DNSSEC makes your domain more secure — but if it’s misconfigured, newer certificate validation rules can stop SSL renewals in their tracks.

Hey there,

You know that satisfying click when you finally turn on DNSSEC? It feels like adding a shiny new deadbolt to your domain’s front door. You’re doing the responsible thing: locking down your DNS against spoofing and hijacks, and making the internet just a bit safer.

Continue reading DNSSEC: The Extra Security Layer That Can Break Your Padlock at Sucuri Blog.

If you own a WordPress website and ever encountered the “Not Secure” warning, you might have worried that visitors would perceive your site as spam or fraudulent. Not only does this warning impact user trust, but it can also create technical search issues when both HTTP and HTTPS versions of your pages remain accessible or when redirects, canonicals, and sitemaps point to different URL versions. Browsers show the visible security warning, while search engines rely on permanent redirects, canonical URLs, and updated sitemaps to understand your preferred HTTPS pages.

Continue reading How to Fix “Not Secure” Warnings and SSL Issues in WordPress (8 Steps) at Sucuri Blog.

Ever had a perfectly “safe” page or file turn into an attack vector out of nowhere? That can happen when browsers start guessing what your content is instead of listening to your server. Browsers sometimes try to figure out what kind of file they’re dealing with if the server doesn’t provide the Content-Type header or provides the wrong one, a process known as “content sniffing.” While this can be helpful, content sniffing is a security risk if an attacker can mess with the content.

Continue reading How to Protect Your Site From Content Sniffing with HTTP Security Headers at Sucuri Blog.