Site diagnostics

Websites give us a number of site-diagnostic capabilities, which provide us insight into what our website is doing above the application layer (performing REMOTE DEBUGGING falls more into the application layer, but the configuration controls whether a debugger can be attached to a web server, which is a site layer). I think of this category of diagnostics in the same way as IIS logging on an on-premises web server.

Site diagnostics offers us the following diagnostic facilities:

• WEB SERVER LOGGING: This logs all HTTP transactions for a website, which can be helpful for monitoring transactional throughput of a site and gathering metrics. Logs can be stored to the FILE SYSTEM and are limited to a configurable QUOTA that ranges between 25 MB and 100 MB, or to a blob storage, which allows greater flexibility for storage size but will incur costs.

• DETAILED ERROR MESSAGES: This logs extra detailed error information for HTTP status codes that are 400 or higher and are returned by...