Round-trip time from your browser to every Akamai Cloud (Linode) region — 24 of them, 8 in Europe, 7 in Asia, 7 in North America, 1 in Oceania, 1 in South America — each against the speed-of-light floor its distance sets, so a slow region is visibly far rather than badly routed.
No browser can send an ICMP echo, so this is not a Linode ping in the traditional sense. Each Akamai Cloud datacentre is timed on its object-storage endpoint — a machine standing in that building rather than a CDN edge in front of it, so what comes back is that site’s own round trip and not a nearby cache’s.
Object-storage endpoints answer per datacentre, timed blind — no CORS headers.
The first request of a sweep is discarded — it pays for DNS, TCP and TLS — so every sample after it is essentially one round trip, and the reported figure is the fastest of them.
| Region | City | Country | IPv4 prefixes |
|---|---|---|---|
| in-maa-1 | Chennai | IN | 96 |
| id-cgk-1 | Jakarta | ID | 80 |
| in-bom-1 | Mumbai | IN | 197 |
| jp-osa-1 | Osaka | JP | 108 |
| ap-south-1 | Singapore | SG | 376 |
| sg-sin-1 | Singapore | SG | 376 |
| jp-tyo-1 | Tokyo | JP | 313 |
| nl-ams-1 | Amsterdam | NL | 96 |
| de-fra-1 | Frankfurt | DE | 457 |
| eu-central-1 | Frankfurt | DE | 457 |
| gb-lon-1 | London | GB | 422 |
| es-mad-1 | Madrid | ES | 64 |
| it-mil-1 | Milan | IT | 96 |
| fr-par-1 | Paris | FR | 184 |
| se-sto-1 | Stockholm | SE | 112 |
| us-iad-1 | Ashburn | US | 282 |
| us-southeast-1 | Atlanta | US | 263 |
| us-ord-1 | Chicago | US | 257 |
| us-lax-1 | Los Angeles | US | 160 |
| us-mia-1 | Miami | US | 128 |
| us-east-1 | Newark | US | 393 |
| us-sea-1 | Seattle | US | 128 |
| au-mel-1 | Melbourne | AU | 64 |
| br-gru-1 | Sao Paulo | BR | 82 |
Prefix counts come from Linode’s own published feed. Each region links to its distance, its physical floor and the endpoint used to time it.
Open the instrument, select Linode, choose regions and run a sweep. Nothing is pre-selected and nothing runs until you press the button.