Map the full route packets take to any destination. Identify bottlenecks, routing loops, and high-latency hops across the internet.
nettoolz — traceroute
// ready — enter a target above and press run
// api access
Use this tool via API
Integrate Online Traceroute into your own scripts or dashboards using our free JSON API.
# Traceroute via APIcurl"https://nettoolz.co.uk/api/?tool=traceroute&host=cloudflare.com"
// faq
Frequently asked questions
What do asterisks (* * *) mean?
Asterisks indicate that a router along the path did not respond to the traceroute probe — usually because ICMP TTL-exceeded messages are filtered by a firewall. This is common and doesn't necessarily indicate a problem.
Why does latency jump at certain hops?
Large latency jumps between consecutive hops indicate a slow or congested link at that point. However, some routers deprioritise ICMP probes, which can make hops appear slower than they actually are.
What is a hop?
Each hop represents a router or gateway that forwards your packets along the route. A typical internet path involves 10–20 hops between source and destination.