DNS Gurus
Cached · just now
18 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=63072000
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Significantly strengthen CSP directives
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close

Caching Headers

3 headers
Age
Caching
4
Cache-Control
Caching
public, max-age=0, must-revalidate
Etag
Caching
"15uhcapancw56s1"

Content Headers

2 headers
Content-Length
Content
242152
Content-Type
Content
text/html; charset=utf-8

Server Headers

0 headers
No server headers found

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
https://www.seismic.com

Cookies Headers

1 headers
Set-Cookie
Cookies
sc_site=Seismic; Path=/; Secure; HttpOnly; SameSite=none

Other Headers

7 headers
Date
Other
Fri, 02 Jan 2026 19:32:29 GMT
X-Azure-Ref
Other
20260102T193229Z-16b669c9d886p464hC1BL1fdpg0000000frg000000000ugz
X-Cache
Other
CONFIG_NOCACHE
X-Matched-Path
Other
/en/_site_Seismic
X-Sc-Rewrite
Other
/_site_Seismic/
X-Vercel-Cache
Other
HIT
X-Vercel-Id
Other
iad1::iad1::f5jw5-1767382349735-6130747d7c6f

Recommendations

Enable compression (gzip/brotli) to improve performance