HTTP Headers Analysis for https://api.plono.ai

Detected Technologies from Headers

See all in URL Inspect 2

Google Static File Front End

Express

HTTP Security Headers

Status

Strict-Transport-Security

Missing

Not configured

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

• 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

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

x-fh-requested-host, accept-encoding

accept-ranges: bytes
connection: close
vary: x-fh-requested-host, accept-encoding

Caching Headers

Cache-Control

Caching

no-store

Etag

Caching

W/"f0-mhJ3huqFufHHUDyh2BY5dzPhcqE"

cache-control: no-store
etag: W/"f0-mhJ3huqFufHHUDyh2BY5dzPhcqE"

Content Headers

Content-Length

Content

240

Content-Type

Content

application/problem+json; charset=utf-8

content-length: 240
content-type: application/problem+json; charset=utf-8

Server Headers

Server

Google Frontend

X-Powered-By

Server

Express

server: Google Frontend
x-powered-by: Express

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400

Date

Other

Mon, 24 Aug 2026 22:52:04 GMT

X-Cache

Other

MISS, MISS

X-Cache-Hits

Other

0, 0

X-Cloud-Trace-Context

Other

981d536440f1539082ad4b5978940ecb;o=1

X-Correlation-Id

Other

9956b563-9f04-41cd-b2b2-470b5793581e

X-Middleware-Rewrite

Other

https://plono-prod-bc9d35-core.web.app/

X-Served-By

Other

cache-fra-eddf8230059-FRA, cache-lga21938-LGA

X-Timer

Other

S1787611925.600799,VS0,VE237

alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
date: Mon, 24 Aug 2026 22:52:04 GMT
x-cache: MISS, MISS
x-cache-hits: 0, 0
x-cloud-trace-context: 981d536440f1539082ad4b5978940ecb;o=1
x-correlation-id: 9956b563-9f04-41cd-b2b2-470b5793581e
x-middleware-rewrite: https://plono-prod-bc9d35-core.web.app/
x-served-by: cache-fra-eddf8230059-FRA, cache-lga21938-LGA
x-timer: S1787611925.600799,VS0,VE237

Recommendations

Enable compression (gzip/brotli) to improve performance

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