...
from
ftn_spname
request parameter if theAllowFtnSpname
is enabled (see https://ubisecuredev.atlassian.net/l/cp/cxk6skXX for details)from metadata:
client_name
field for OAuth2/OICDOIDCDisplayName
field for SAML
hostname from request parameter:
redirect_uri
for Oauth2OAuth2/OICDOIDCassertionConsumerUrl
for SAML
...