Archipelago Monitor Statistics

Archipelago (Ark): CAIDA's active measurement infrastructure serving the network research community since 2007.
Statistical information for the topology traces taken by this individual Ark monitor is displayed below. See the main statistics page for the full list of monitors


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hel-fi

Helsinki Univ of Technology
Espoo, FI (2)
IPv6 data used (switch to IPv4)
Time range2025-04-27 06:39 to 2025-04-28 20:46 UTC (1 day 14 hours) (1 day ago)
Total traces511450
Traces with responding destinations42436 (8.297%)
ASes with responding destinations10766 (31.351% out of 34340)
Prefixes with responding destinations34725 (16.096% out of 215733)
Protocol versionv6 (switch to v4)
Generated for cycle 20250427 on 2025-04-29 09:29 UTC

All images can be clicked on for more detailed information.

Median RTT per country and US state

Mapping RTT by political boundaries can reveal where high latency issues are located.

Path Dispersion

The paths taken by different traces show where the majority of a monitor's traffic travels.

Path Length Distributions

Path length distributions show, on aggregate, how well-connected a monitor is to the rest of the Internet.