TLS and HTTP/2 variables
fastly_info.h2.is_push
fastly_info.h2.stream_id
fastly_info.is_h2
tls.client.cipher
tls.client.ciphers_list_sha
tls.client.ciphers_list_txt
tls.client.ciphers_list
tls.client.ciphers_sha
tls.client.protocol
tls.client.servername
tls.client.tlsexts_list_sha
tls.client.tlsexts_list_txt
tls.client.tlsexts_list
tls.client.tlsexts_sha

tls.client.servername

TLS and HTTP/2

The Server Name Indication (SNI) the client sent in the ClientHello TLS record. Returns "" if the client did not send SNI. Otherwise not set if the request is not a TLS request.

Type

STRING

Accessibility

Read Only

Readable From

vcl_recv
vcl_hash
vcl_deliver
vcl_log