Network Tools
Free DNS, WHOIS, SSL, and network diagnostic tools for domain & server management
DNS Record Lookup
Query multiple record types for one or more domains — separate domains with commas or spaces
DNS Propagation Check
Check if DNS records have propagated across global servers
Email Security Check
Analyze SPF, DKIM, and DMARC records for a domain
Domain WHOIS Lookup
Look up domain registration information
SSL/TLS Certificate Check
Inspect SSL certificate details, expiry, and chain
HTTP Headers Inspector
View HTTP response headers from any URL
IP Address & ASN Lookup
Find who owns an IP address or AS number via RIPE NCC
IP Blacklist Check
Check if an IP is listed on DNS-based blacklists (DNSBL)
Reverse DNS Lookup
Find the hostname associated with an IP address (PTR record)