IP & Network
See your IP, look up DNS records, WHOIS, and check your own open ports.
What Is My IP Instantly see the public IP address your connection is using right now, plus where it appears to be. IP Lookup Enter an IP address to see where it is and which network it belongs to, or leave it blank to look up your own. IP WHOIS Lookup Enter an IP address to fetch its WHOIS registration details from the regional internet registry. DNS Lookup Enter a domain name and pick a record type (or All) to see its live DNS records. Reverse DNS Lookup Enter an IP address to find the hostname its owner has set in reverse DNS. Domain WHOIS Lookup Enter a domain name to look up who registered it, when it was created, and when it expires. Open Port Checker Check which common service ports are reachable on your own public IP from the outside internet. Email Header Analyzer Paste the full headers of an email to see how it was routed and whether it passed SPF, DKIM and DMARC checks. Bulk IP Lookup Paste a list of IP addresses (one per line or comma-separated) to look them all up at once.