Measure TCP connect time and Time to First Byte (TTFB) from the network edge to any origin server
Target
Connecting from the edge…
TCP Connect
TTFB
Measured as raw TCP connect time and time-to-first-byte from an HTTP fetch — ICMP echo is not available, so this is not literal "ping". Raw sockets on ports 80/443 are blocked, so standard web targets show TTFB only.