Traceroute: Find Where the Path Actually Breaks
When a ping test or a slow page load has already confirmed something is wrong, traceroute answers the follow-up question: at which point along the path between a visitor and a server does the slowdown, or the failure, actually happen?
From "it's slow" to "it's slow right here"
Rather than treating "the connection is slow" as one unexplained problem, a trace breaks the journey into individual hops and shows exactly which router segment is adding delay or dropping traffic.
Pinpointing the slow segment
Network engineers and system administrators use traceroute to turn a vague slowdown into a specific answer: every router the packets pass through, with the response time at each one, so the segment adding delay or dropping traffic identifies itself.
Diagnosing regional routing problems
A site that loads fine for most visitors but consistently slowly — or not at all — from one specific country or ISP. A trace from that region reveals whether the issue sits inside your own network, at your hosting provider, or somewhere in between on a network neither of you controls, which changes who actually needs to fix it.
Before/after migration comparisons
Hosting teams compare traces before and after a migration or a CDN change to confirm traffic now takes the shorter, faster path it's supposed to. Because routing differs by origin, running traces from several worldwide locations at once separates a one-region path problem from an issue with the destination itself.
How to read your traceroute results
Each line in a trace is one hop — one router the packets passed through — along with the response time recorded there. Response time should generally increase gradually and smoothly hop by hop; a real problem usually looks like a sudden, large jump in latency at one specific hop that then persists for every hop afterward, which points squarely at that network segment as the likely cause. A hop showing an asterisk or "request timed out" in the middle of an otherwise healthy trace is very often cosmetic: many routers ignore or deprioritize traceroute probes without affecting how they forward real traffic.
If a trace never reaches the destination, or every hop after a certain point times out, that's the stronger signal of a genuine break in the path. Pair a trace with the ping test to confirm overall reachability and latency first, and the HTTP check to confirm the website itself is answering requests — a network-level routing issue and an application problem can look similar from the outside but need very different fixes.
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A timed-out hop almost never means there's a break in the connection there. Many routers along a path are configured to deprioritize or simply not reply to the ICMP/UDP probes a traceroute sends, either for security reasons or because handling those replies isn't worth the router's CPU time - while continuing to forward your actual traffic through completely normally. As long as later hops after the timed-out one keep responding and the final destination is reached successfully, an asterisk in the middle of the path is almost always cosmetic, not a real problem.
Not by itself. Traceroute is diagnosing the path, not your connection's health - a hop that doesn't reply is common and normal even on a completely healthy route, for the same reason covered above (routers commonly silence traceroute probes without affecting real traffic). What actually indicates a problem is a sharp, sustained jump in response time starting at a specific hop and continuing for every hop after it, or the trace failing to ever reach the destination at all.
Network traffic is routed differently depending on where it originates - different ISPs, different peering agreements, and different physical distances all shape which path a packet actually takes to reach the same destination. Running a trace from multiple locations at once is exactly how you tell a routing quirk affecting one region apart from a problem with the destination server itself, which would show up consistently no matter where the trace started from.
There's no fixed number - it depends entirely on network topology, and anywhere from about 8 to 20 hops is common for a typical route across the public internet. What matters far more than the hop count itself is whether response time increases smoothly and reasonably from hop to hop, versus one specific hop introducing a sudden, large jump in latency that persists for the rest of the trace - that jump is what points at a real bottleneck.
A ping test only tells you whether the final destination responds and how long the full round trip takes, with no visibility into what happens in between. Traceroute reveals the entire path - every router (hop) the packets pass through on the way, along with the response time at each one - which is what makes it possible to pinpoint roughly where in the network a slowdown or a routing problem is actually occurring, rather than just knowing that one exists.
It gets you very close. Each hop in the results typically resolves to a hostname or IP address that often reveals which ISP or network operator owns that segment of the path, so a sustained latency jump appearing right after a particular hop usually points at that specific network as the likely source. It's not a perfect identification (a hop's IP address doesn't always map cleanly to who is actually responsible for a slowdown), but it narrows the search from "somewhere on the internet" down to a specific, identifiable segment of the route - concrete evidence to bring to your host or ISP instead of just "it feels slow."
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Run the free traceroute test
Trace the exact network path to any website, server, or IP address and see the response time at every hop along the way.
Ping test: latency and packet loss
The check that comes before a trace — confirm something is actually slow or unreachable, then find out where.
Multi-location availability monitoring
Continuous checks from worldwide locations that catch a regional routing problem the moment it starts.
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