server name

offerup.com

Mixed audience

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

10 clients659 obs2026-07-19 → 2026-07-23

domain

explore in graph →

Read

client diversity

10 distinct client stacks reach this name.

concentration

0.872 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

659

observations

distinct clients

2026-07-19

first seen

2026-07-23

last seen

Client stacks reaching this name

Google Chrome / Chromiummulti-build
29%
Google Chrome / Chromiumrandomising
18%
Google Chrome / Chromiumrandomising
18%
Android (Conscrypt) / Flutter (BoringSSL)multi-build
8.8%
Apple Safari / WebKitmulti-build
6.1%
t13d4313h1_c78…722ba4afmulti-build
5.3%
Apple Safari / WebKitmulti-build
4.6%
Android (Conscrypt) / Flutter (BoringSSL)multi-build
4.6%
Google Chrome / Chromiumrandomising
3.3%
Apple Safari / WebKitfixed
2.7%

Busiest 10 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	—	multi-build	189	29%	2026-07-19	2026-07-23
Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version	—	randomising	121	18%	2026-07-19	2026-07-23
Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version	—	randomising	116	18%	2026-07-19	2026-07-23
Android (Conscrypt) / Flutter (BoringSSL) mobile-BoringSSL cipher-suite signature — Android system TLS (Play Services, Firebase, OkHttp apps) and Flutter/Dart; any ALPN	—	multi-build	58	8.8%	2026-07-19	2026-07-23
Apple Safari / WebKit Apple SecureTransport cipher-suite signature — Safari (macOS/iOS), WKWebView, and native URLSession apps; the 3DES legacy tail (0xC008/0xC012/0x000A) is Apple's tell, no other modern stack carries it. Platform entry like Android's Conscrypt: Apple system TLS legitimately offers any ALPN (h2, http/1.1, dot, none), so the cipher list alone is the signature — not ALPN-gated	—	multi-build	40	6.1%	2026-07-19	2026-07-23
t13d4313h1_c7886…722ba4af	—	multi-build	35	5.3%	2026-07-19	2026-07-22
Apple Safari / WebKit Apple SecureTransport cipher-suite signature — Safari (macOS/iOS), WKWebView, and native URLSession apps; the 3DES legacy tail (0xC008/0xC012/0x000A) is Apple's tell, no other modern stack carries it. Platform entry like Android's Conscrypt: Apple system TLS legitimately offers any ALPN (h2, http/1.1, dot, none), so the cipher list alone is the signature — not ALPN-gated	—	multi-build	30	4.6%	2026-07-19	2026-07-23
Android (Conscrypt) / Flutter (BoringSSL) mobile-BoringSSL cipher-suite signature — Android system TLS (Play Services, Firebase, OkHttp apps) and Flutter/Dart; any ALPN	—	multi-build	30	4.6%	2026-07-19	2026-07-23
Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version	—	randomising	22	3.3%	2026-07-19	2026-07-23
Apple Safari / WebKit Apple SecureTransport cipher-suite signature — Safari (macOS/iOS), WKWebView, and native URLSession apps; the 3DES legacy tail (0xC008/0xC012/0x000A) is Apple's tell, no other modern stack carries it. Platform entry like Android's Conscrypt: Apple system TLS legitimately offers any ALPN (h2, http/1.1, dot, none), so the cipher list alone is the signature — not ALPN-gated	66182318…3a0307	fixed	18	2.7%	2026-07-19	2026-07-23