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Akamai debug headers
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Pragma: akamai-x-cache-on, akamai-x-cache-remote-on, akamai-x-check-cacheable, akamai-x-get-cache-key, akamai-x-get-extracted-values, akamai-x-get-nonces, akamai-x-get-ssl-client-session-id, akamai-x-get-true-cache-key, akamai-x-serial-no |
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# | |
# Check if something is cached in Akamai | |
# | |
curl -H "Pragma: akamai-x-cache-on" -H "Pragma: akamai-x-check-cacheable" -I "http://store.sony.com/webapp/wcs/stores/servlet/StoreCatalogDisplay?langId=-1&storeId=10151&catalogId=10551" | |
# | |
# The response header "X-Cache" shows that Akamai served the response from its cache | |
# The response header "X-Check-Cacheable" shows if Akamai is configured to cache that response | |
# | |
# If a request does not return any X response header then it is not cached by Akamai | |
# Once you use Akamai all your traffic is routed through their network whether cached or not | |
# | |
HTTP/1.1 200 OK | |
Content-Type: text/html; charset=ISO-8859-1 | |
Content-Language: en-US | |
Date: Sat, 19 Jan 2013 04:52:19 GMT | |
X-Cache: TCP_MEM_HIT from a69-31-113-172.deploy.akamaitechnologies.com (AkamaiGHost/6.10.4-10176585) (-) | |
Connection: keep-alive | |
X-Check-Cacheable: YES | |
# | |
# Something not going through the Akamai network will not return any "X-*" response headers | |
# | |
curl -k -H "Pragma: akamai-x-cache-on" -H "Pragma: akamai-x-check-cacheable" -I "https://images.gimbal.com" | |
HTTP/1.1 200 OK | |
Date: Sat, 19 Jan 2013 05:09:22 GMT | |
Server: Apache/2.2.3 (Red Hat) | |
X-Powered-By: PHP/5.3.10 | |
X-Pingback: https://www.gimbal.com/xmlrpc.php | |
Vary: Accept-Encoding | |
Connection: close | |
Content-Type: text/html; charset=UTF-8 | |
# | |
# Any domain which is served by Akamai must have a DNS CNAME to the "edgesuite.net" or "edgekey.net domains" | |
# | |
# | |
# store.sony.com is Akamaized | |
# | |
dig store.sony.com | |
; <<>> DiG 9.8.1-P1 <<>> store.sony.com | |
;; global options: +cmd | |
;; Got answer: | |
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12568 | |
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0 | |
;; QUESTION SECTION: | |
;store.sony.com. IN A | |
;; ANSWER SECTION: | |
store.sony.com. 90 IN CNAME san.sony.com.edgekey.net. | |
san.sony.com.edgekey.net. 14164 IN CNAME e6699.g.akamaiedge.net. | |
e6699.g.akamaiedge.net. 20 IN A 23.6.181.17 | |
;; Query time: 74 msec | |
;; SERVER: 127.0.0.1#53(127.0.0.1) | |
;; WHEN: Fri Jan 18 21:14:34 2013 | |
;; MSG SIZE rcvd: 119 | |
# | |
# images.gimbal.com is not Akamaized | |
# | |
dig images.gimbal.com | |
; <<>> DiG 9.8.1-P1 <<>> images.gimbal.com | |
;; global options: +cmd | |
;; Got answer: | |
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33546 | |
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 | |
;; QUESTION SECTION: | |
;images.gimbal.com. IN A | |
;; ANSWER SECTION: | |
images.gimbal.com. 7200 IN A 199.106.109.221 | |
;; Query time: 38 msec | |
;; SERVER: 127.0.0.1#53(127.0.0.1) | |
;; WHEN: Fri Jan 18 21:13:55 2013 | |
;; MSG SIZE rcvd: 51 | |
👍
👍
Awesome!
If a request does not return any X response header then it is not cached by Akamai
Small correction: these headers can be administratively disabled for traffic which still flows through (and is cached by) the Akamai network -- so it is (no longer) an absolute confirmation.
👍
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nice! thanks!