server name

jsz19.vkduba.cn

Mixed audience

A mix of client stacks reach this name, none dominating.

6 clients227 obs2026-07-20 → 2026-07-20

domain

explore in graph →

Read

client diversity

6 distinct client stacks reach this name.

concentration

0.822 traffic splits near-evenly across many unrelated stacks.

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

227

observations

distinct clients

2026-07-20

first seen

2026-07-20

last seen

Client stacks reaching this name

Google Chrome / Chromiumrandomising
33%
t13d2914h1_723…5f92fbdbrandomising
30%
Google Chrome / Chromiumrandomising
16%
t13d2913h1_723…b5df5029randomising
16%
Android (Conscrypt) / Flutter (BoringSSL)multi-build
2.6%
Android (Conscrypt) / Flutter (BoringSSL)fixed
1.3%

Busiest 6 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
Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version	—	randomising	76	33%	2026-07-20	2026-07-20
t13d2914h1_72369…5f92fbdb	—	randomising	68	30%	2026-07-20	2026-07-20
Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version	—	randomising	37	16%	2026-07-20	2026-07-20
t13d2913h1_72369…b5df5029	—	randomising	37	16%	2026-07-20	2026-07-20
Android (Conscrypt) / Flutter (BoringSSL) mobile-BoringSSL cipher-suite signature — Android system TLS (Play Services, Firebase, OkHttp apps) and Flutter/Dart; any ALPN	—	multi-build	6	2.6%	2026-07-20	2026-07-20
Android (Conscrypt) / Flutter (BoringSSL) mobile-BoringSSL cipher-suite signature — Android system TLS (Play Services, Firebase, OkHttp apps) and Flutter/Dart; any ALPN	0e76c7e9…dd8f43	fixed	3	1.3%	2026-07-20	2026-07-20