Looking Glass
Run a traceroute, a ping or a BGP route lookup from our servers in Germany and France or from probes in more than 30 cities, and find the official looking glass of every major carrier.
Our looking glass locations
Two servers of our own, rented in two European datacenters, and a worldwide network of Globalping probes. We are a customer of these hosts and not affiliated with them: a trace from Falkenstein shows the routes Hetzner's network takes, because that is where our server sits.
| Location | Network | Commands | Access |
|---|---|---|---|
| Falkenstein, Germany | Hosted at Hetzner Online · AS24940 | Traceroute (mtr), Ping | Free |
| Gravelines, France | Hosted at OVHcloud · AS16276 | Traceroute (mtr) | Pro or Pass |
| Globalping: 33 cities | Probes hosted by the Globalping community; each result names the probe's network | Traceroute (mtr) | Free, 1 a day |
| BGP routes | RIPE RIS route collectors | BGP route | Free |
Without an account and on the free plan: 3 traces a day, 1 of them from a Globalping city; 3 pings and 3 BGP lookups a day without an account, 10 and 10 with a free account. Paid plans remove these daily limits; Globalping probes keep an hourly cap. Compare plans
Globalping cities: New York (United States), Los Angeles (United States), London (United Kingdom), Singapore (Singapore), Tokyo (Japan), São Paulo (Brazil), Sydney (Australia), Fès (Morocco), Tunis (Tunisia), Delhi (India), Johannesburg (South Africa), Jakarta (Indonesia), Denpasar (Indonesia), Berlin (Germany), Paris (France), Amsterdam (Netherlands), Madrid (Spain), Milan (Italy), Warsaw (Poland), Stockholm (Sweden), Istanbul (Türkiye), Dubai (United Arab Emirates), Seoul (South Korea), Hong Kong (Hong Kong SAR China), Taipei (Taiwan), Bangkok (Thailand), Ho Chi Minh City (Vietnam), Manila (Philippines), Toronto (Canada), Mexico City (Mexico), Buenos Aires (Argentina), Lagos (Nigeria), Nairobi (Kenya)
Carrier looking glasses
Large transit networks run their own looking glass: a web page that runs a ping, a traceroute or a BGP route query from their routers. Use them to see a path from inside a carrier, for example to check how Arelion or Cogent reaches your prefix.
| Network | AS | Looking glass |
|---|---|---|
| Arelionformerly Telia Carrier | AS1299 | lg.twelve99.net(opens in a new tab) |
| Lumenformerly Level 3, CenturyLink | AS3356 | lookingglass.lumen.com(opens in a new tab) |
| Cogent | AS174 | www.cogentco.com(opens in a new tab) |
| NTT | AS2914 | www.gin.ntt.net(opens in a new tab) |
| Hurricane Electric | AS6939 | lg.he.net(opens in a new tab) |
| Tata Communications | AS6453 | lg.as6453.net(opens in a new tab) |
| Zayo | AS6461 | lg.zayo.com(opens in a new tab) |
| Verizon Business | AS701 | www.verizon.com(opens in a new tab) |
| Orangeformerly OpenTransit | AS5511 | looking-glass.opentransit.net(opens in a new tab) |
| OVHcloud | AS16276 | lg.ovh.net(opens in a new tab) |
| Hetzner Online | AS24940 | No public looking glass. Our Falkenstein server is hosted on this network: trace from Falkenstein |
| RIPE RIS | Route collector | stat.ripe.net(opens in a new tab) |
| PCH | Route collector | www.pch.net(opens in a new tab) |
Links checked in October 2026. These pages belong to their operators: some ask you to accept terms of use or to solve a captcha, and each one limits what you can run.
What is a looking glass?
A looking glass is a server that runs network commands for you from another place on the Internet. Network engineers use one to see a route from the outside: does my prefix reach Europe through the right transit provider, is the loss on my line or further away, does a datacenter reach a customer quickly? This page is a looking glass in that sense: traceroute (mtr) and ping leave from our servers in Falkenstein, Germany, and Gravelines, France, or from Globalping probes in more than 30 cities, and the BGP lookup reads the routes collected by RIPE RIS.
Read a looking glass traceroute from its starting point. The first hops belong to the hosting network (Hetzner from Falkenstein, OVHcloud from Gravelines), then the path crosses one or more transit networks before it enters the destination's AS. A carrier's looking glass starts inside that carrier instead, so its path is shorter and often different. Neither one matches the path from your own connection: your provider, its peering and where you are decide your route. To see that one, run traceroute or mtr on your computer, then compare.