Domain Tools

Analyze domain health, ownership, DNS records, and SSL configurations with these easy-to-use utilities.

WHOIS Lookup

Discover registration details for any domain, including registrar, creation/expiry dates, and contact info when available. Ideal for researching domain ownership.

Lookup WHOIS

DNS Propagation Checker

Track how DNS changes propagate across different geographic locations. Useful after changing nameservers, A records, or other DNS settings.

Check DNS Propagation

SSL Certificate Checker

Inspect a website’s SSL certificate, including expiration date, issuing authority, protocol version, and cipher strength. Helps identify expiring or insecure certs.

Check SSL

DNS Record Viewer

Fetch and view all DNS records for a domain — including A, MX, CNAME, TXT, and more. Great for troubleshooting mail issues or verifying record setup.

View DNS Records

DNS TTL Risk Estimator

Estimate outage and propagation risk from TTL values versus your incident tolerance and change cadence.

Estimate TTL Risk

Nameserver Failover Planner

Map provider and region diversity across nameservers to identify single-provider and single-region dependencies.

Plan Failover

Registrar Renewal Buffer Planner

Calculate a safe renewal start window based on approval and review delays before domain expiry dates.

Plan Renewal Buffer

DNS Record TTL Normalizer

Align TTL values to record criticality so high-impact records propagate faster while stable records cache longer.

Normalize TTLs

Subdomain Takeover Risk Mapper

Assess CNAME ownership drift and service lifecycle gaps that can expose subdomain takeover risk.

Map Takeover Risk

Domain Redirect Cutover Planner

Build phased redirect migration plans by traffic share to reduce ranking volatility during cutovers.

Plan Redirect Cutover