Nine free, no-signup web tools for the things your domain and email depend on: SPF/DKIM/DMARC check, MX and DNS lookups, HTTP security-headers scan, blacklist and DNSSEC/CAA/MTA-STS checks, a 40+ check website security scan, plus on-page SEO and AI-search (GEO/AEO) scanners. All client-side, nothing logged, no account needed. The GEO/AEO scanner - grading how ready a page is for AI search - is still rare to find free. By Edos Solutions, Sydney IT specialists since 2005.