Many real world sites have strategic/marketing partners who ask to add analytics scripts so that they can capture metrics for their partnerships with you/your r

Many real world sites have strategic/marketing partners who ask to add analytics scripts so that they can capture metrics for their partnerships with you/your real world site...And if your site has been optimized, but their servers (which serve up these 3rd-party/analytics scripts) aren't as optimized, guess where the slow down comes from? And senior leaders don't always enforce these partners to confirm to internal performance standards. So, yes, unfortunately real world sites DO have - or at least are forced to have - stuff like that.