$ curl -I -H 'User-Agent: google' 'https://op-kulku.fi/feed?post_type=vehicle&csv=g'
HTTP/2 301
server: nginx
date: Tue, 11 Dec 2018 07:42:45 GMT
content-type: text/html
content-length: 178
location: http://op-kulku.fi/feed

$ curl -I -H 'User-Agent: firefox' 'https://op-kulku.fi/feed?post_type=vehicle&csv=g'
HTTP/2 200
server: nginx
date: Tue, 11 Dec 2018 07:43:08 GMT
content-type: text/plain; charset=UTF-8
last-modified: Mon, 10 Dec 2018 20:32:58 GMT
x-robots-tag: noindex, follow
link: <https://op-kulku.fi/wp-json/>; rel="https://api.w.org/"
wpe-backend: apache
x-wpe-loopback-upstream-addr: 127.0.0.1:6785
x-cacheable: CacheAlways: feed
cache-control: max-age=600, must-revalidate
vary: Accept-Encoding
etag: W/"66a813e581286c243f5f3b2ec91940af-gzip"
x-cache: MISS
x-pass-why:
x-cache-group:
accept-ranges: bytes
x-type: feed