Methodology
Repeatable network checks
Useful network evidence separates each stage, repeats bounded samples, and records enough context to compare results later.
1. Resolve
Record the resolver and returned address family. A DNS result proves name resolution, not service reachability.
2. Connect
Measure TCP connection time independently from TLS negotiation and application response time.
3. Exchange
Use fixed-size transfers in both directions. Verify the exact byte count rather than relying only on an average rate.
4. Repeat
Compare multiple samples across access providers and time windows. Keep carrier and network-type attribution explicit.