server name
lookaside.facebook.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
6 distinct client stacks reach this name.
concentration
0.936 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
9
observations
6
distinct clients
2026-07-19
first seen
2026-07-23
last seen
Client stacks reaching this name
- t00d0310h2_55b…996d9024multi-build33%
- 22%
- t00d0307h2_55b…6a331b25unclassified11%
- t00d0309h2_55b…98375d16multi-build11%
- t13d0107h2_0f2…4e8b7642multi-build11%
- 11%
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 |
|---|---|---|---|---|---|---|
| t00d0310h2_55b37…996d9024 | — | multi-build | 3 | 33% | 2026-07-20 | 2026-07-20 |
| t13d0208h2_ec078…98df4e22 | ba254eb4…ead29a | fixed | 2 | 22% | 2026-07-23 | 2026-07-23 |
| t00d0307h2_55b37…6a331b25 | — | unclassified | 1 | 11% | 2026-07-19 | 2026-07-19 |
| t00d0309h2_55b37…98375d16 | — | multi-build | 1 | 11% | 2026-07-19 | 2026-07-19 |
| t13d0107h2_0f2cb…4e8b7642 | — | multi-build | 1 | 11% | 2026-07-23 | 2026-07-23 |
| t13d0207h2_ec078…448224a5 | 87d49415…b511c2 | fixed | 1 | 11% | 2026-07-23 | 2026-07-23 |