Free Security & Network Tools

Access Untangled Labs' suite of 13 free security, network, and GIS diagnostic tools — no account required. SSL Certificate Checker: verify SSL/TLS certificate status, expiration date, and chain validity. DNS Lookup: query A, AAAA, MX, CNAME, TXT, NS, SOA, and CAA records. WHOIS Lookup: retrieve domain registration details and registrar information. SPF Checker: validate SPF record syntax and DNS lookup count. DKIM Checker: verify DKIM public key publication and signature validity. DMARC Checker: analyze DMARC policy, alignment, and reporting configuration. Port Scanner: check open ports and running services on any host. Password Generator: create strong, customizable passwords with entropy scoring. HTTP Header Analyzer: inspect response headers for security, caching, and CORS configuration. Technology Detector: identify frameworks, CMS platforms, and libraries used by any website. Website Scanner: full SEO and technical audit including structured data validation. GPS Coordinates: live latitude, longitude, altitude, and accuracy via device GPS with Google Maps integration. Compass: real-time heading with true-north calibration. Digital Level: precision inclinometer for device tilt measurement. All tools free of charge.