Network Toolbox

Your IP address, ISP, location, browser, screen, device and connection details

Domain registration details, registrar, name servers and expiry dates

Query A, AAAA, CNAME, NS and TXT records via DNS-over-HTTPS

Mail server records, priorities and mail provider detection

TCP connection latency to any host. Three attempts with average

Scan common ports (HTTP, HTTPS, SSH, FTP, SMTP, DNS and more)

Certificate issuer, expiry, SANs, protocol version and chain details

Response headers, security headers, server info and caching policies

Network address, broadcast, host range, wildcard mask from IP/CIDR

Quick download speed estimate using server-hosted test files