4:113+15:0:1460:mss*32,11:mss,sok,ts,nop,ws:df,id+:0 |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0… |
User-Agent claims Linux |
TCP SYN initial TTL 113+15 indicates Windows
The initial TTL is set by the sending kernel (64 on Unix-like systems, 128 on Windows) and survives NAT. But VPNs, proxies and tunnels legitimately replace the sending stack, so this check never exceeds medium confidence.
| Full User-Agent | Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/117.0 |
|---|
| Observed TTL | 113+15 (observed + path distance → initial) |
|---|
| Claimed OS | Linux |
|---|
| Confidence | low — single sighting of an environmental signal |
|---|
|
low |
1 |
2026-06-29 |
2026-06-29 |