HoneyLabs

Akin HTTP request fingerprint

b11cun126_80040017_c51f9d86_x379753ab95539f8fdafedf99

Seen 2026-09-23 to 2026-09-29 across the retained window.

The feed is a URL your firewall, MISP or SIEM polls; it needs a free account so it can be revoked. Or watch the top network: AS13335 sends an email when it next hits a sensor.

1

Source IPs

1

Networks

1

Countries

1

Ports hit

7

Events

1

IPs / network

This fingerprint is spread thinly across many networks, which is the shape of a common, widely-used client.

Top networks

Countries

US 1

Ports targeted

What it requests

User agents claimed

facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)1 IPs7
Source IPCCNetwork Last seenEvents
162.159.106.207USAS13335 Cloudflare, Inc.2026-09-297

Related fingerprints

Clients whose header set is within two of this one, measured from the tokens themselves.

b11cun126_80040017_97192874_x379753ab95539f8fdafedf99same header set2 IPs2b11cun126_80040017_1b422348_x379753ab95539f8fdafedf99same header set1 IPs1b11cun126_80040017_73069fd7_x379753ab95539f8fdafedf99same header set1 IPs1b11cun148_80040017_b6ce16b9_x379753ab95539f8fce00d0f1dafedf992 headers apart63 IPs961b11cun148_80040017_a944b67d_x379753ab95539f8fce00d0f1dafedf992 headers apart20 IPs494

About this fingerprint

Akin fingerprints an HTTP client from the request head alone: the protocol version, line endings, body framing, which headers are present, and the grammar of the negotiation header values. The User-Agent string and the request path are deliberately excluded, because both are trivially changed and both were measured varying within a single operator, so a scanner that rotates either keeps one fingerprint. The middle section is a presence bitmap rather than a hash, so two tokens can be compared directly to see how many headers the clients differ by.