X-Hcdn-Request-ID
Hostinger's CDN tags responses with the unofficial X-Hcdn-Request-ID response header, an opaque request identifier ending in the edge node that served the response. The header travels beside X-Hcdn-Cache-Status and X-Hcdn-Upstream-Rt on Hostinger-hosted sites.
Usage
The identifier locates a request in Hostinger's infrastructure logs, and the suffix doubles as a serving-location readout. Observed suffixes name a point of presence by airport-style code plus a numbered edge node, the same convention Cf-Ray and X-Served-By use for their location codes.
Values
The observed format is a 32-character lowercase hexadecimal string, a hyphen, a location code, and an edge node number:
<32 hex>-<pop>-edge<n>
Observed location codes include bos (Boston),
fra (Frankfurt), phx (Phoenix), and imm,
with edge numbers running from edge1 upward.
Example
A response served from a Frankfurt edge node. The hash identifies the request, and the suffix places the serving machine.
X-Hcdn-Request-ID: 813c8d55fc873f0aa27083a397f7ce05-fra-edge1