I'm not sure if this belongs here or in stack overflow. I have set up a custom domain website using a PHP Google Cloud App engine. After some third party security testing i've been advised to disable the use of cipher suite DES-CBC3-SHA (TLS_RSA_WITH_3DES_EDE_CBC_SHA).
I'm trying to find out if its possible to disable this for a Google PHP App engine? Most of what I can find online either doesn't answer this particular question or is somewhat out of date.
I found this post useful, https://stackoverflow.com/questions/42681247/can-google-app-engine-java-support-tls1-0 . This suggests it's not possible, however it doesn't actually answer the question, it just concludes that if its good enough for google it should be fine.