About this tool

The Network Tools brings 38+ free DNS, email, SSL and domain tools together. Developers and system administrators can run checks without signup. DNS lookup shows records; SPF, DKIM and DMARC tools inspect email authentication. WHOIS and IP lookups show domain and network information. SSL checks show issuer, expiry and validity. Blacklist checks show status on the lists tested, not a guarantee of delivery everywhere. Use it to review a domain change, email setup or certificate. A calmer MXToolbox alternative, with optional account-based monitoring and alerts.