Scenario
Round-trip latencies for chained requests eth_getBlockByNumber(latest, false) and eth_getLogs(hash) with start-to-start throttling of (at least) 1100 ms for every request.
Also, block number consistency with block availability and block age.
Of the possible 31 regions, 4 were selected for data collection: N. Virginia, London, Frankfurt, and Singapore.
Each location probe breaks its processing loop if / when the endpoint response is too-many-requests, a.k.a. HTTP code 429 etc. Also, codes 401 and 403.
At the time of the report generation: 4 of 4 datasets were available from 4 selected regions x 1 endpoint.
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Findings
Details
Latencies exclude one warmup request per endpoint in each region. Additional columns are visible when you scroll to the right. 2 datasets (endpoint-region) are not in the details because their probes received rate limits or other failures during connection setup and warmup.
Errors
Info about errors incl. 429. Up to 4 retained error responses per endpoint, per region. Scenario-derived availability notes may also appear.