Species index / social
facebookexternalhit
Operated by Meta. Identity is self-declared and unverified.
1Requests
1Distinct IPs
1Well-known probes
2026-08-21First seen
2026-08-21Last seen
Identity
| Kind | preview |
|---|---|
| Family | social |
| Stated purpose | link-preview |
| UA match | facebookexternalhit |
| Verified | no |
| robots.txt | insufficient-data |
Facebook link preview.
What it went looking for
The order and selection of discovery paths is a design fingerprint: it reflects which conventions whoever built this client decided to support.
No discovery probes recorded.
Protocol fingerprint
| HTTP | TLS | Cipher | ALPN | Requests |
|---|---|---|---|---|
| HTTP/2.0 | TLS1.3 | TLS_AES_128_GCM_SHA256 | h2 | 1 |
TLS client fingerprint
Captured off the wire before the proxy terminates TLS. JA4 is stable across IP changes and much harder to spoof than a User-Agent string, so it is the strongest identity signal on this page.
| JA4 | JA3 | TLS | ALPN | Seen |
|---|---|---|---|---|
| t13d3111h2_e8f1e7e78f70_5ac7197df9d2 | 1ce565f411fbc741... | 13 | h2,http/1.1 | 1 |
Requests per day (60 days)
| Day | Requests | |
|---|---|---|
| 2026-08-21 | 1 |