Free Network & IP Tools

Look up geolocation, ISP, ASN, timezone, and more for any IP address or domain.

Instantly detect your public IP address with full location and network details.

Check if an IP address has been reported for abuse, spam, or malicious activity.

Check if an IP is listed on popular spam blacklists like Spamhaus, Barracuda, and SpamCop.

Test if your VPN is working, detect WebRTC leaks, and see what your IP reveals.

Look up the PTR hostname for any IPv4 or IPv6 address with FCrDNS verification.

Query A, AAAA, MX, TXT, NS, CNAME, SOA, and CAA records for any domain.

Check DNS propagation status across multiple global servers in real time.

Verify whether a domain is signed and validated end-to-end. Inspect DS, DNSKEY, and algorithms.

Look up mail exchange (MX) records to verify email routing for any domain.

Validate the email authentication records on any domain and surface deliverability issues.

Query domain registration details including registrar, creation date, and nameservers.

Verify SSL/TLS certificates — expiry date, issuer, SANs, key type, and more.

Inspect HTTP response headers and security headers (HSTS, CSP, X-Frame-Options) for any URL.

Trace every 301/302/307/308 redirect a URL goes through to reach its final destination.

Check if specific ports are open or closed on any IP address or domain.

Measure your download speed, upload speed, ping, and jitter in seconds.