DNS Gurus
Cached · just now
20 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15552000; includeSubDomains
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Significantly strengthen CSP directives
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Connection
Performance
close
Vary
Performance
Accept-Encoding

Caching Headers

1 headers
Etag
Caching
W/"5ed8e-xoO+t+J/W55LvVYaxLara6maUdE"

Content Headers

2 headers
Content-Length
Content
388494
Content-Type
Content
text/html; charset=utf-8

Server Headers

1 headers
X-Powered-By
Server
zwift-web-core

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
uLocale=en-us; Max-Age=7776000; Domain=.zwift.com; Path=/; Expires=Tue, 12 May 2026 15:17:08 GMT

Other Headers

7 headers
Date
Other
Wed, 11 Feb 2026 15:17:08 GMT
Via
Other
1.1 58ff8bffb8202620fab96966a8d77160.cloudfront.net (CloudFront)
X-Amz-Cf-Id
Other
7i_bev_bJ4rO1ipQdC5Q9E8WTY4rfoOZPOeQLreWKGEs8is96DIxiQ==
X-Amz-Cf-Pop
Other
IAD55-P6
X-Cache
Other
Miss from cloudfront
X-Envoy-Upstream-Service-Time
Other
23
X-Page-Cache
Other
hit

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching

Consider removing X-Powered-By header to hide server technology