WebSocket handshake test curl

Rate-limit download speed curl --limit-rate 1M -O https://example.com/bigfile.iso POST JSON payload curl -s -X POST https://api.example.com/v1/resource -H 'Content-Type: application/json' -H 'Authorization: Bearer <token>' -d '{"key":"value"}' | jq . Follow redirects with verbose curl -sLv https://example.com 2>&1 | grep -E '^[<>*]' Time a request curl -so /dev/null -w 'DNS: %{time_namelookup}s\nConnect: %{time_connect}s\nTTFB: %{time_starttransfer}s\nTotal: %{time_total}s\n' https://example.com Download with progress curl -L --progress-bar -o output.file https://example.com/file.tar.gz