DNS Gurus
Cached · just now
19 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
fullscreen=(), geolocation=(), camera=()
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking

Performance Headers

2 headers
Connection
Performance
Transfer-Encoding
Transfer-Encoding
Performance
chunked

Caching Headers

3 headers
Cache-Control
Caching
private, no-cache, no-store, must-revalidate
Expires
Caching
Thu, 05 Feb 2026 13:58:22 GMT
Pragma
Caching
no-cache

Content Headers

1 headers
Content-Type
Content
text/html; charset=UTF-8

Server Headers

1 headers
Server
Server
nginx

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
PHPSESSID=8266175e2ab175feae4805f1b4cd1a1f; path=/; samesite=None; domain=.pdffiller.com; secure; httponly

Other Headers

7 headers
Content-Security-Policy-Report-Only
Other
frame-ancestors 'self' *.pdffiller.com *.signnow.com *.airslate.com; report-uri https://www.pdffiller.com/api_v3/security_report/cspViolationsReport?appKey=rs3dwgboso31.apps.marketing_pages
Date
Other
Thu, 05 Feb 2026 13:58:22 GMT
Forwarded-Request-Id
Other
550b87ea77eb03aced2cbd0216c28e45
X-Envoy-Upstream-Service-Time
Other
215
X-Mp-Type
Other
Functionality
X-Request-Id
Other
afaf17ba30db94ce9eebbe6cfb74b9e9
X-Server
Other
MP-V3

Recommendations

Enable compression (gzip/brotli) to improve performance