This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
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Intervals.icu
intervals.icu
did:plc:czu7kxvhh5wscgmsfkgjxvxi
Intervals.icu analyzes your rides, runs, swims and other activities. It provides basic and advanced analytics and planning in an easy to use web interface.