What is the default port for sending telemetry data using OTLP over HTTP?

The default port for sending telemetry data using the OpenTelemetry Protocol (OTLP) over HTTP is 4318. This choice is aligned with the specifications set forth in OpenTelemetry’s documentation, which defines this port as the standard for transmitting observability data using HTTP.

Using this specific port allows different observability tools, including Dynatrace, to effectively communicate and integrate with applications that support OpenTelemetry data transmission. Since port 4318 is specifically designated for OTLP over HTTP, it ensures compatibility and standardization across various systems and services.

Other ports listed, such as 8080, 3000, and 443, are commonly used for different services but do not conform to the default specification for OTLP over HTTP. Understanding the significance of the correct port helps in maintaining seamless data exchange between systems utilizing OpenTelemetry, resulting in more effective monitoring and observability.