server name
api.youpin898.com
Dominated by one stack
One client stack dominates the traffic to this name — normal for an API or a CDN origin.
- domain
Read
client diversity
2 distinct client stacks reach this name.
concentration
0.165one client stack dominates — normal for an API or a CDN origin.
Spread is entropy over the fingerprints reaching this domain, not over the domains a fingerprint reaches. It can’t distinguish one scraper from many people — it measures the mix of software, not who runs it.
Footprint
41
observations
2
distinct clients
2026-07-19
first seen
2026-07-23
last seen
Client stacks reaching this name
- Rust reqwest (rustls)randomising98%
- t13d3612h1_018…8339ac4cunclassified2.4%
Busiest 2 client stacks on this page. Share is the fraction of this name’s observations. Many distinct fingerprints on a low-traffic name is itself worth a look; a blank JA3 is a permuting client — open the fingerprint for its variants.
| client | JA3 | stability | count | share | first seen | last seen |
|---|---|---|---|---|---|---|
| Rust reqwest (rustls) rustls — pure-Rust TLS, same on any base image | — | randomising | 40 | 98% | 2026-07-19 | 2026-07-23 |
| t13d3612h1_01897…8339ac4c | 6d539e75…a7e5db | unclassified | 1 | 2.4% | 2026-07-19 | 2026-07-19 |