TLS and HTTP 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

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