Dotcom-Monitor Web Performance Blog

Web application performance is not just a technical concern – it is a business imperative. Google’s research shows that as page load time increases from one second to five seconds, the probability of a mobile visitor bouncing rises by 90%. Deloitte’s 2020 “Milliseconds Make Millions” report found that a 0.1-second improvement in mobile site speed lifted retail conversion rate...

Your pager fires at 2 a.m. The alert payload has a status code in it. What you do next depends almost entirely on which code you see.

That’s the part most HTTP status code guides skip. They list definitions, sort the codes into five buckets, and stop. Useful as a glossary, less useful...

API monitoring is the continuous, automated practice of validating API endpoints for availability, response time, and data correctness — confirming not only that an endpoint responds, but that it returns the right data, in the right format, within acceptable latency, from the perspective of users and dependent systems.

APIs are ...