| Availability | Within a time range, the ratio of the number of times the target service can be accessed normally to the total number of accesses. |
| Total Download Time | Monitor the total time consumed by a page, that is, the time from the start of monitoring to the end of monitoring. |
| DNS Time | The time it takes to resolve a specified domain name into an IP address through the domain name resolution service |
| Connection Establishment Time | The time taken to establish a TCP/IP connection between the browser and the WEB server. |
| SSL Handshake Time | The time taken to establish a Secure Sockets Layer (SSL) connection between the browser and the WEB server. |
| Redirection Time | Redirection Time is the elapsed time before receiving the first Element from the WEB server redirection instruction to RequestWEB server. |
| Request Time | The elapsed time starts when the browser sends HTTPRequest and ends when the browser sends HTTPRequest. |
| Time to First Byte (TTFB) | The time it takes from the end of the browser sending HTTPRequest to receiving the first data packet returned by the WEB server. |
| Content Download Time | When monitoring a page, from the perspective of the page, the time it takes for the browser to receive non-first data packets returned by the WEB server. |
| Network Layer Time | When monitoring a page, the total time consumed by Network communication occurs. |
| Client Time | The total number of time segments during which Network communication does not occur when monitoring a page. |
| Total DNS Lookup Time | The time it takes to resolve a specified domain name into an IP address through the domain name resolution service |
| Total TCP Connection Time | During the process of browsing a page, including Element in the page, the total time it takes to establish a connection. |
| Total Download Bytes | The total number of Network communication bytes returned from the WEB server during browsing an interface/file. |
| Base Page Size | Base Page Size is the total number of bytes of the plain text HTML file |
| Download Speed | Download Speed = Total Page Size / Network Layer Time. |
| Base Page Download Speed | Base Page Download Speed = Base Page Size / Base Page Download Time |
| Number of Page Resources | The number of Element downloaded from the WEB server during browsing a page. |
| DNS Lookup Count | During the process of browsing a page, including Element in the page, the total number of DNS resolutions occurred. |
| TCP Connection Count | During the process of browsing a page, including Element in the page, the total number of connections established. |
| Failed Resource Count | During page browsing, the total number of elements where errors occur. |
| Number of Lazy-loaded Resources | During browsing a page, the sum of the number of Element loaded after onload Event occurs |
| Redirect Count | During the process of browsing a page, a total of server Redirect Count occurred. |
