HTTP Headers Analysis for https://rsp.cbp.gov

Detected Technologies from Headers

See all in URL Inspect 2

Akamai Active incidents

Envoy

HTTP Security Headers

Status

Strict-Transport-Security

Good

max-age=31536000 ; includeSubDomains

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

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
• 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

Connection

Performance

close

connection: close

Caching Headers

Cache-Control

Caching

max-age=0, no-cache, no-store

Expires

Caching

Tue, 15 Sep 2026 19:48:20 GMT

Last-Modified

Caching

Thu, 25 Jun 2026 20:56:54 GMT

Pragma

Caching

no-cache

cache-control: max-age=0, no-cache, no-store
expires: Tue, 15 Sep 2026 19:48:20 GMT
last-modified: Thu, 25 Jun 2026 20:56:54 GMT
pragma: no-cache

Content Headers

Content-Length

Content

18705

Content-Type

Content

text/html

content-length: 18705
content-type: text/html

Server Headers

Server

istio-envoy

server: istio-envoy

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Tue, 15 Sep 2026 19:48:20 GMT

Server-Timing

Other

cdn-cache; desc=MISS, edge; dur=154, origin; dur=336, ak_p; desc="1789501699837_386075804_1686908476_48991_6918_45_83_-";dur=1

X-Akamai-Transformed

Other

9 4377 0 pmb=mRUM,2

X-Envoy-Upstream-Service-Time

Other

1

date: Tue, 15 Sep 2026 19:48:20 GMT
server-timing: cdn-cache; desc=MISS, edge; dur=154, origin; dur=336, ak_p; desc="1789501699837_386075804_1686908476_48991_6918_45_83_-";dur=1
x-akamai-transformed: 9 4377 0 pmb=mRUM,2
x-envoy-upstream-service-time: 1

Recommendations

Enable compression (gzip/brotli) to improve performance