Headers of https://duckduckgo.com/?t=ffab

HTTP/1.1 200 OK
Server
nginx
Date
Thu, 05 Aug 2021 11:28:17 GMT
Content-Type
text/html; charset=UTF-8
Content-Length
5722
Connection
close
Vary
Accept-Encoding
ETag
"610ac25e-165a"
Strict-Transport-Security
max-age=31536000
Permissions-Policy
interest-cohort=()
X-Frame-Options
SAMEORIGIN
X-XSS-Protection
1;mode=block
X-Content-Type-Options
nosniff
Referrer-Policy
origin
Expect-CT
max-age=0
Expires
Thu, 05 Aug 2021 11:28:16 GMT
Cache-Control
no-cache
Accept-Ranges
bytes