Shulou(Shulou.com)06/01 Report--

This article mainly explains "how to use curl tools to analyze HTTP request network delay". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to use curl tools to analyze HTTP request network delay".

Curl is not only a very excellent network testing tool, but also one of the most widely used network testing tools at present, especially in the support of HTTP protocol. Curl provides command-line tools and API libraries. Developers can integrate command-line tools in scripts and libraries in applications. Curl can capture time-consuming data in all stages of network and communication protocol transmission, which is especially useful when analyzing network performance.

Typical HTTP request flow

In the current Internet application architecture, a typical HTTP request flow initiates a request from the client, obtains the IP address of the load balancer service through LocalDNS resolution of the domain name, accesses the IP address of the load balancer service, and the load balancer service uninstalls the certificate and forwards the request to the back-end service.

Client LocalDNS LoadBalancer BackendService | |-1.1 DNS Req--- | time_namelookup | |-3.1 SSL ClientHello- > | | | time_appconnect |-4.4 HTTP Request- > |

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.