HTTP Headers Analysis for https://blog.expansive.com

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare NEL Monitoring

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

Content-Security-Policy

Weak

upgrade-insecure-requests

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

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Caching Headers

0 headers

No caching headers found

Content Headers

1 headers

Content-Type

Content

text/html

Server Headers

1 headers

Server

cloudflare

CORS Headers

0 headers

No CORS headers found

Cookies Headers

1 headers

Set-Cookie

Cookies

_cfuvid=4enXwGleNVfBzjNbOCtUmLawN1MzAltcgA1S0KG15rw-1770939577055-0.0.1.1-604800000; path=/; domain=.blog.expansive.com; HttpOnly; Secure; SameSite=None

Other Headers

9 headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Ray

Other

9ccfed22d896d6dc-IAD

Date

Other

Thu, 12 Feb 2026 23:39:37 GMT

Nel

Other

{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}

Report-To

Other

{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=S%2BzZ3eWveZzhIuZhnixrF68fTQ%2FEi%2FqvnzpS4fzfbzJuiYLCe74rDWALW91WdqJDncavcRnJLdknn8kk1xvQIB0BK8tn%2FndksIkMuF8EvO5rviTeW1tvRMBy7pgbp4%2Fvwuxc%2Fw%3D%3D"}],"group":"cf-nel","max_age":604800}

X-Hs-Cfworker-Meta

Other

{"resolver":"NotFoundResolver"}

X-Hs-Portal-Id

Other

7357143

X-Hs-Prerendered-Error

Other

Thu, 05 Feb 2026 02:49:15 GMT

X-Hs-Reason

Other

404 predicted at edge