HTTP Headers Analysis for https://keepersecurity.com

Detected Technologies from Headers

See all in URL Inspect 1

Nginx

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Weak

frame-ancestors Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Significantly strengthen CSP directives
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

accept-ranges: bytes
connection: close

Caching Headers

Cache-Control

Caching

no-store, no-cache, must-revalidate

Etag

Caching

"1a0a2332928b5207bb7728023580c552"

Last-Modified

Caching

Mon, 04 May 2026 23:17:32 GMT

cache-control: no-store, no-cache, must-revalidate
etag: "1a0a2332928b5207bb7728023580c552"
last-modified: Mon, 04 May 2026 23:17:32 GMT

Content Headers

Content-Length

Content

67877

Content-Type

Content

text/html

content-length: 67877
content-type: text/html

Server Headers

Server

nginx

server: nginx

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Wed, 06 May 2026 09:13:51 GMT

X-Cache-Status

Other

REVALIDATED

date: Wed, 06 May 2026 09:13:51 GMT
x-cache-status: REVALIDATED

Recommendations

Enable compression (gzip/brotli) to improve performance