OpenCensus and OpenTracing have merged into OpenTelemetry!

HTTP

HyperText Transfer Protocol(HTTP) is an application-layer protocol for transmitting hypermedia documents, such as HTML [1]

OpenCensus can be used with HTTP packages, frameworks and plugins in the following languages:

References

Resource URL
Go ochttp package documentation https://godoc.org/go.opencensus.io/plugin/ochttp
Java HTTP Servlet plugin repository https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/http_servlet