This root cause analysis concerns slow server responses for the initial HTML document. When the server is slow to establish network connections (SSL Time, TCP Time) and send the initial data (Time to First Byte and Request Time) this is often a sign that either there is a network issue or a server that is under load.
Network issues often present as a specific source or destination exhibiting symptoms (e.g. high Time to First Byte for users in Australia). Global events, in which servers are slow to respond to users across multiple networks often point to infrastructure under load (cache engines, database servers, or general infrastructure fatigue).
Your web server is responding slowly to initial browser requests. This is not a result of your code or any client-side calls, but rather this is a slow server failing to deliver the initial data in a timely fashion. Based on the input data, it looks like the server is exhibiting symptoms of resource contention. This often happens when your website (or the platform it runs on) is under heavy load.
If you run the infrastructure for this site, we suggest you look at server metrics (CPU/Memory and Network stats). If you are using a shared hosting provider (Kinsta, WordPress) or platform (Shopify®, Magento® Cloud, etc.) , or a Content Delivery Service (Cloudflare®, Akamai®, etc) we suggest reaching out to their support team with the attached data included in the Edgemesh Root Cause Analysis payload.