server name
rtb-csync.smartadserver.com
Mixed audience
A mix of client stacks reach this name, none dominating.
- domain
Read
client diversity
7 distinct client stacks reach this name.
concentration
0.698 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
61
observations
7
distinct clients
2026-07-19
first seen
2026-07-23
last seen
Client stacks reaching this name
- Google Chrome / Chromiumrandomising44%
- Google Chrome / Chromiumrandomising34%
- Google Chrome / Chromiumrandomising8.2%
- Google Chrome / Chromiumrandomising6.6%
- 3.3%
- Mozilla Firefoxmulti-build1.6%
- Google Chrome / Chromiumrandomising1.6%
Busiest 7 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 | 27 | 44% | 2026-07-19 | 2026-07-23 |
| Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version | — | randomising | 21 | 34% | 2026-07-19 | 2026-07-23 |
| Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version | — | randomising | 5 | 8.2% | 2026-07-22 | 2026-07-23 |
| Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version | — | randomising | 4 | 6.6% | 2026-07-20 | 2026-07-23 |
| t13d1411h2_f98f5…a2ca17c4 | cba7316b…9b8adb | fixed | 2 | 3.3% | 2026-07-19 | 2026-07-19 |
| Mozilla Firefox Firefox cipher-suite signature — also forks (Zen, LibreWolf, Tor Browser); any extension permutation or version | — | multi-build | 1 | 1.6% | 2026-07-19 | 2026-07-19 |
| Google Chrome / Chromium Chromium cipher-suite signature — Chrome, Edge, Brave, Opera; any extension permutation or version | — | randomising | 1 | 1.6% | 2026-07-23 | 2026-07-23 |