HTTP Headers Analysis for https://preview.builder.codes

Detected Technologies from Headers

See all in URL Inspect 2

AWS CloudFront

Google Static File Front End

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=300; includeSubDomains

Content-Security-Policy

Weak

frame-ancestors 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

• 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

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

cookie,accept-encoding

accept-ranges: bytes
connection: close
vary: cookie,accept-encoding

Caching Headers

Cache-Control

Caching

public, max-age=60, s-maxage=60, stale-if-error=2678400, stale-while-revalidate=86400

cache-control: public, max-age=60, s-maxage=60, stale-if-error=2678400, stale-while-revalidate=86400

Content Headers

Content-Length

Content

4270

Content-Type

Content

text/html; charset=utf-8

content-length: 4270
content-type: text/html; charset=utf-8

Server Headers

Server

Google Frontend

server: Google Frontend

CORS Headers

Access-Control-Allow-Headers

Cors

content-type, accept, authorization

Access-Control-Allow-Methods

Cors

GET, POST, PUT, DELETE, OPTIONS, PATCH

Access-Control-Allow-Origin

Cors

*

access-control-allow-headers: content-type, accept, authorization
access-control-allow-methods: GET, POST, PUT, DELETE, OPTIONS, PATCH
access-control-allow-origin: *

Cookies Headers

No cookies headers found

Other Headers

Access-Control-Allow-Private-Network

Other

true

Date

Other

Mon, 23 Feb 2026 01:18:15 GMT

Function-Execution-Id

Other

fdwnw3lr1u71

Origin-Trial

Other

AofGPSvOEBwNTsONiWgsQDentPPwgWkTFpAxoQocYSzbXKnh43+evaYOWRmzNSbrxEQMwgHMKnVqHU0N9uOMMwsAAAB0eyJvcmlnaW4iOiJodHRwczovL2J1aWxkZXIuaW86NDQzIiwiZmVhdHVyZSI6IlVucmVzdHJpY3RlZFNoYXJlZEFycmF5QnVmZmVyIiwiZXhwaXJ5IjoxNzA5ODU1OTk5LCJpc1N1YmRvbWFpbiI6dHJ1ZX0=

Via

Other

1.1 e1f3f2ebef55f9ee8a49ae05308c1852.cloudfront.net (CloudFront)

X-Amz-Cf-Id

Other

ow4niclhkqoEOaGdqhwuj_uUGJw5TJAL9PjBwo1sqdU-U7HFDqxZbg==

X-Amz-Cf-Pop

Other

IAD55-P10

X-Cache

Other

Miss from cloudfront

X-Cache-Hits

Other

0

X-Cloud-Trace-Context

Other

e8c5c592f4324d07883da579bb1dd4e0;o=1

X-Country-Code

Other

US

X-Served-By

Other

cache-iad-kiad7000170-IAD

X-Timer

Other

S1771809495.985997,VS0,VE97

access-control-allow-private-network: true
date: Mon, 23 Feb 2026 01:18:15 GMT
function-execution-id: fdwnw3lr1u71
origin-trial: AofGPSvOEBwNTsONiWgsQDentPPwgWkTFpAxoQocYSzbXKnh43+evaYOWRmzNSbrxEQMwgHMKnVqHU0N9uOMMwsAAAB0eyJvcmlnaW4iOiJodHRwczovL2J1aWxkZXIuaW86NDQzIiwiZmVhdHVyZSI6IlVucmVzdHJpY3RlZFNoYXJlZEFycmF5QnVmZmVyIiwiZXhwaXJ5IjoxNzA5ODU1OTk5LCJpc1N1YmRvbWFpbiI6dHJ1ZX0=
via: 1.1 e1f3f2ebef55f9ee8a49ae05308c1852.cloudfront.net (CloudFront)
x-amz-cf-id: ow4niclhkqoEOaGdqhwuj_uUGJw5TJAL9PjBwo1sqdU-U7HFDqxZbg==
x-amz-cf-pop: IAD55-P10
x-cache: Miss from cloudfront
x-cache-hits: 0
x-cloud-trace-context: e8c5c592f4324d07883da579bb1dd4e0;o=1
x-country-code: US
x-served-by: cache-iad-kiad7000170-IAD
x-timer: S1771809495.985997,VS0,VE97

Recommendations

Enable compression (gzip/brotli) to improve performance