Akamai: CDN and edge platform

What Akamai is

Akamai runs one of the oldest and most widely deployed content delivery networks, with servers placed inside a very large number of access networks. Delivery is usually configured through a chain of CNAME records that end at an Akamai edge hostname, so the customer keeps its own name while Akamai resolves the closest edge.

How DNSTrace.dev detects it

Detection correlates independent public signals. A single match is reported as strong evidence; agreement between a response header and the announcing network is reported as confirmed.

akamai-grn — A global request number identifying the edge transaction.
x-akamai-request-id — Per-request identifier on many configurations.
x-akamai-transformed — Set when Akamai has modified the payload, for example by compressing images.
server: AkamaiGHost — The Akamai Global Host process.
server-timing containing ak_p — Akamai edge timing metrics.
CNAME chains ending in edgekey.net or akamaiedge.net — The standard Akamai delivery mapping.

What a detection proves

The hostname is delivered through Akamai, and the response was served by an Akamai edge server.

What it does not prove

Which origin Akamai forwards to, or whether the customer also uses another CDN for other paths. Akamai configurations frequently omit identifying headers entirely, so absence is not evidence of absence.