server name
html.duckduckgo.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
0.813 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
23
observations
7
distinct clients
2026-07-19
first seen
2026-07-23
last seen
Client stacks reaching this name
- Python requests / urllib3multi-build48%
- t13d3112h1_e8f…e481755emulti-build13%
- t13d171100_ab0…362c5eacunclassified13%
- Python httpx / aiohttpmulti-build8.7%
- Node.js fetch / undicimulti-build8.7%
- t13d1813h1_850…722ba4afmulti-build4.3%
- Python urllib (stdlib)unclassified4.3%
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 |
|---|---|---|---|---|---|---|
| Python requests / urllib3 official CPython build (OpenSSL 3.0.x — Windows / macOS / uv); ja4_b is the build, ja4_c b26ce05bbdd6 is urllib3's own SSLContext (post_handshake_auth, no session ticket) — httpx on the same build differs by that one extension. First seen as Windows 10, Python 3.14. | — | multi-build | 11 | 48% | 2026-07-20 | 2026-07-20 |
| t13d3112h1_e8f1e…e481755e | — | multi-build | 3 | 13% | 2026-07-23 | 2026-07-23 |
| t13d171100_ab0a1…362c5eac | — | unclassified | 3 | 13% | 2026-07-23 | 2026-07-23 |
| Python httpx / aiohttp Python 3.10–3.13, standalone OpenSSL 3 — Alpine (musl), uv, or macOS-arm | — | multi-build | 2 | 8.7% | 2026-07-19 | 2026-07-22 |
| Node.js fetch / undici Node 22 — bundled OpenSSL 3 (newer) | — | multi-build | 2 | 8.7% | 2026-07-19 | 2026-07-21 |
| t13d1813h1_85036…722ba4af | — | multi-build | 1 | 4.3% | 2026-07-19 | 2026-07-19 |
| Python urllib (stdlib) Python 3.10–3.13, standalone OpenSSL 3 — Alpine (musl), uv, or macOS-arm | — | unclassified | 1 | 4.3% | 2026-07-21 | 2026-07-21 |