server name
merino.services.mozilla.com
Too few observations
Too little traffic to read — a spread of 1.0 over three connections is noise; the same over sixty thousand is worth a look.
- domain
Read
client diversity
4 distinct client stacks reach this name.
concentration
0.923 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
10
observations
4
distinct clients
2026-07-20
first seen
2026-07-23
last seen
Client stacks reaching this name
- Mozilla Firefoxfixed40%
- t13d3013h2_1d3…70b4dd61multi-build30%
- Mozilla Firefoxmulti-build20%
- t13d2309h2_bc6…8a4b704bunclassified10%
Busiest 4 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 |
|---|---|---|---|---|---|---|
| Mozilla Firefox Firefox cipher-suite signature — also forks (Zen, LibreWolf, Tor Browser); any extension permutation or version | f19d54c8…7448e9 | fixed | 4 | 40% | 2026-07-22 | 2026-07-23 |
| t13d3013h2_1d37b…70b4dd61 | — | multi-build | 3 | 30% | 2026-07-22 | 2026-07-22 |
| Mozilla Firefox Firefox cipher-suite signature — also forks (Zen, LibreWolf, Tor Browser); any extension permutation or version | — | multi-build | 2 | 20% | 2026-07-20 | 2026-07-22 |
| t13d2309h2_bc643…8a4b704b | — | unclassified | 1 | 10% | 2026-07-22 | 2026-07-22 |