# ab > Apache HTTP server benchmarking tool. > More information: . - Execute 100 HTTP GET requests to a given URL: `ab -n {{100}} {{url}}` - Execute 100 HTTP GET requests, in concurrent batches of 10, to a URL: `ab -n {{100}} -c {{10}} {{url}}` - Execute 100 HTTP POST requests to a URL, using a JSON payload from a file: `ab -n {{100}} -T {{application/json}} -p {{path/to/file.json}} {{url}}` - Use HTTP [K]eep Alive, i.e. perform multiple requests within one HTTP session: `ab -k {{url}}` - Set the maximum number of seconds to spend for benchmarking: `ab -t {{60}} {{url}}`