ipWhat is IPv6? A practical guide to its addresses
Understand IPv6 notation, double-colon compression, and why a device can use more than one IPv6 address.
Read guideUnderstand your connection.
Practical guides to IP addresses, DNS, networking and privacy.
30 guidesWhy is an IP lookup returning no result?
Troubleshoot lookup failures by distinguishing invalid input, private addresses, provider limits, and connection errors.
Read guideWhy does my IP location show another city?
Investigate an unexpected IP location through VPN exits, carrier routing, and outdated database records.
Read guideIs it safe to share your IP address?
Understand what an IP can reveal, how to share it in support requests, and its practical security limits.
Read guideHow to perform a bulk IP lookup
Prepare an IP list, compare bulk lookup results, and interpret failed entries without losing useful information.
Read guideWhat are localhost and 127.0.0.1?
Learn about loopback addresses, local development, and why localhost refers to a different machine for each user.
Read guideIPv4 vs IPv6: the differences that matter
Compare IPv4 and IPv6 addressing, dual-stack connections, and the reasons lookup results may differ.
Read guideWhy does your IP change on mobile internet?
Learn how mobile data, Wi-Fi, carrier exits, and shared addresses affect IP lookup results.
Read guidePublic vs private IP: what is the difference?
Learn why your router and an IP lookup site show different addresses, and how private and public addressing differ.
Read guideWhat is the difference between a proxy and a VPN?
Compare proxy and VPN traffic scope, encryption boundaries, and the exit addresses visible in IP lookups.
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