Traceroute
Trace the network path to a host. Shows DNS resolution, IP geolocation, and AS path information.
Traceroute maps the journey packets take to reach a host. This browser version resolves the target to an IP, looks up its geolocation and autonomous-system (AS) details, and measures HTTP reachability — giving a snapshot of where a host lives on the internet and whether it responds. It's a quick reachability and ownership check rather than a full hop-by-hop ICMP trace.
Frequently asked questions
What does traceroute show?
Traditionally it lists each router (hop) between you and a destination. This tool focuses on the destination: its IP, network owner, location, and whether it answers over HTTP.
Why isn’t there a hop-by-hop list?
Browsers can’t send raw ICMP packets, so a true per-hop trace isn’t possible client-side. This version reports resolution, ownership, and reachability instead.
What is an AS path?
The autonomous systems traffic crosses to reach a network. The destination’s AS shows which provider ultimately hosts the address.
Why does a host show unreachable but the site works?
The HTTP probe may be blocked or time out from the edge even when the site is up for normal browsers, so treat reachability as indicative.
What’s the difference from ping?
Ping measures round-trip response time; traceroute focuses on the path and the destination’s network identity.