DNS Gurus
Cached · just now
20 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • 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

4 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

2 headers
Age
Caching
0
Cache-Control
Caching
public, max-age=300, stale-if-error=300, stale-while-revalidate=86400

Content Headers

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

Server Headers

2 headers
Server
Server
N/A
X-Powered-By
Server
Brightspot

CORS Headers

2 headers
Access-Control-Allow-Origin
Cors
https://obras.expansion.mx
Access-Control-Expose-Headers
Cors
AMP-Access-Control-Allow-Source-Origin

Cookies Headers

1 headers
Set-Cookie
Cookies
JSESSIONID=F583C6233B620BAE624D7C9E7C0F42C8; Path=/; Secure; HttpOnly

Other Headers

8 headers
Alt-Svc
Other
h3=":443"; ma=86400
Amp-Access-Control-Allow-Source-Origin
Other
https://obras.expansion.mx
Date
Other
Tue, 30 Dec 2025 09:03:46 GMT
Via
Other
1.1 varnish-v4, 1.1 87e6563b344d9d0eb9b5aa233652bc74.cloudfront.net (CloudFront)
X-Amz-Cf-Id
Other
EKneCOlc1Sn6pzzs4DFIoSdZGUULkZf9QYO_1IYH8KrTq_UAyToM6w==
X-Amz-Cf-Pop
Other
IAD61-P2
X-Cache
Other
Miss from cloudfront
X-Varnish
Other
82870935

Recommendations

Enable compression (gzip/brotli) to improve performance

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