Identifying failed customer experience in distributed computer systems

A computer-readable non-transitory storage medium comprising executable instructions that, when executed by a first computer system, cause the computer system to perform operations comprising:

• receiving, by a processing device of a distributed computer system, a first application layer message associated with a request originated by a client computer system responsive to an action by a user, wherein the first application layer message comprises a transaction identifier identifying a sequence of messages originated by one or more components of the distributed computer system and associated with the request;
• receiving a second application layer message, the second application layer message comprising the transaction identifier and a response to a request comprised by the first application layer message;
• responsive to determining that a time period between the response and the request exceeds a certain threshold value, identifying a performance error.