Break the path into stages
Useful stages can include source-to-ingress, decoding, normalization, policy processing and downstream publication. Separating them makes bottlenecks easier to identify.
Measure distributions, not just averages
An average can hide intermittent delays. Percentiles, maximums over controlled windows and stale-event counts help reveal tail behaviour that trading systems may care about.
Clock quality matters
Comparing timestamps from different machines requires synchronized clocks and an understanding of their precision. Otherwise apparent latency may partly be clock error.
Network placement is deployment-specific
Physical region, connectivity and routing affect observed latency. A website should not promise a universal millisecond figure that has not been measured for the actual deployment.
Tie targets to contracts
If latency or availability objectives become binding service commitments, define their measurement method and scope in the customer agreement.
How this applies to a broker deployment
The exact architecture depends on the selected sources, instruments, platform, regions, data rights and operating model. PriceFeed.xyz scopes those requirements before defining a production design. The examples in this guide explain engineering concepts and do not imply a specific source entitlement, hosting location, latency guarantee or service-level commitment.