https://pixelotes.com/tags/email-security/Recent content in email-security on Raúl PastorHugoenThu, 29 Oct 2026 20:05:00 +0100https://pixelotes.com/blog/hardening-a-personal-domain/Thu, 29 Oct 2026 20:05:00 +0100https://pixelotes.com/blog/hardening-a-personal-domain/<p>Your personal domain is part of your professional identity. If someone can send mail as you, get a certificate for it or take over a forgotten subdomain, that&rsquo;s your name on it. I recently cleaned up mine with a free Cloudflare plan and a free mail plan. Here is what each piece does and how to check it. The examples use <code>example.com</code>.</p> <h2 id="1-remove-what-you-dont-use">1. Remove what you don&rsquo;t use</h2> <p>Old subdomains pointing at services you have deleted are the easiest way in. If <code>blog.example.com</code> still has a CNAME to a hosting platform where you closed the account, someone else can claim it and serve content on your domain. This is called <strong>subdomain takeover</strong>.</p>