server name
secure.booking.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
1 distinct client stacks reach this name.
concentration
0.000one 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
20
observations
1
distinct clients
2026-07-19
first seen
2026-07-23
last seen
Client stacks reaching this name
- Python requests / urllib3multi-build100%
Busiest 1 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 |
|---|---|---|---|---|---|---|
| Python requests / urllib3 official CPython build (OpenSSL 3.0.x — Windows / macOS / uv); ja4_b is the build, ja4_c b26ce05bbdd6 is urllib3's own SSLContext (post_handshake_auth, no session ticket) — httpx on the same build differs by that one extension. First seen as Windows 10, Python 3.14. | — | multi-build | 20 | 100% | 2026-07-19 | 2026-07-23 |