Route mapping diagnostics

Traceroute with IP Location Info

Trace the network path to a public destination and view reverse DNS hostnames, IP registry details and registered location for each hop.

Public targets only Up to 15 hops Registry lookup per hop
Routing visibility

Why enriched traceroute helps

Traceroute shows the path packets take from the Zerolink server toward a destination. Each hop is a router or gateway along the route. When a website or server feels slow or unreachable, traceroute helps identify where the path changes or stops responding.

This tool enriches each hop with reverse DNS hostnames, IP registry information and registered location data using RDAP and public IP sources. That makes it easier to see whether delay appears inside an ISP network, at a transit provider or near the destination itself.

Results originate from the Zerolink server, not your own connection. Start with DNS lookup if naming is uncertain, then compare with ping for reachability, the internet speed test for connection performance, and the Network Diagnostics Suite for broader checks.

Practical workflows

When to trace the route

Use traceroute after DNS looks correct but performance or reachability is still uncertain.

Website loads slowly for everyone

  1. Confirm the domain resolves with the DNS lookup tool.
  2. Run traceroute to see which hop adds the largest delay.
  3. Check whether the IP registry and location columns show an ISP, transit or hosting network.
  4. If the last hops time out, compare with the internet speed test to see whether your own connection is healthy.

Connection fails before reaching the server

  1. Run traceroute and note the last responding hop number.
  2. Compare the hostname, IP registry and location columns for that hop.
  3. If all hops after a specific ISP router fail, contact that provider with the trace.
  4. Use the port checker if ICMP is blocked but TCP should work.

Audit routing to a cloud or VPS host

  1. Traceroute the server IP after deployment.
  2. Verify the final hops belong to the expected hosting provider.
  3. Save or share the enriched hop table for change control records.
  4. Re-run after migrating regions to compare path differences.
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Run enriched traceroute

Enter a public IP address or domain to map the route from the Zerolink server.

Test only destinations you own or are authorised to diagnose. Registry and location lookup uses RDAP and public IP data sources.

Interpret results carefully

How to read the hop table

RTT column

Shows the round-trip time reported for the hop. Sudden increases often point to congestion or a long geographic segment.

Hostname column

Reverse DNS names help identify ISP routers, exchange points and hosting networks when PTR records are published.

IP registry column

Registration and ISP data show which organisation operates the IP range, useful when escalating routing issues.

Location column

Registered location helps identify the country or city associated with each hop when public geolocation data is available.

Timeouts are common

Intermediate routers may ignore traceroute probes by design. Focus on the last responding hop, compare with the ping tool for reachability, and use the internet speed test to measure your own connection latency.

Traceroute lookup questions

What is the difference between this page and the IP ping tool?

The IP ping tool runs a quick reachability check with optional raw traceroute output. This page focuses on traceroute and adds reverse DNS hostnames, IP registry details and registered location for every hop in a structured table.

Where does the IP registry name come from?

Registry information is looked up from RDAP registration data with a fallback to public IP geolocation providers when RDAP does not return an organisation name.

What does the location column show?

Location shows the registered or geolocated place associated with the hop IP, usually city, region and country when available from public IP data sources.

Why do some hops show a timeout?

Many routers are configured not to reply to traceroute probes. A timeout on an intermediate hop does not always mean the path is broken.

Why does the hostname column show a dash?

A dash means no PTR reverse DNS record was available for that hop, or the router did not publish a resolvable hostname in the traceroute response.

Is the test run from my computer?

No. Traceroute runs from the Zerolink web server. Routing and latency can differ from what you see on your own ISP connection.

Can I traceroute private IP addresses?

No. Only public destinations are accepted. Private, local and reserved addresses are blocked for safety.

How many hops are tested?

Up to 15 hops are requested per trace. Long paths may stop earlier if the destination responds sooner.

Should I use traceroute or a speed test first?

Use the internet speed test when you want to measure latency, download and upload on your own connection. Use traceroute when DNS and ping look fine but you need to see which network hops sit between the Zerolink server and the destination.

Should I test a domain or an IP address?

Both work. Testing a domain also shows current DNS A and AAAA records above the hop table, which is useful when a hostname recently changed.

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