HTTP Headers Analysis for https://heart-ping-dev.web.app

Detected Technologies from Headers

See all in URL Inspect 4

Firebase

Google API JS Client

Google Static File Front End

Google Cloud

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31556926; includeSubDomains; preload

Content-Security-Policy

Good

default-src; script-src; connect-src; +5 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

no-referrer

Permissions-Policy

Present

geolocation=(), microphone=(), camera=(); +1 more

Recommendations

• Strengthen CSP by removing 'unsafe-eval'

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

max-age=3600

Etag

Caching

"71f58f1ef88f07eeac800406fcf8bb8ecd2e7c162a83408b7e85debc5c6243ff"

Last-Modified

Caching

Mon, 11 May 2026 17:10:22 GMT

cache-control: max-age=3600
etag: "71f58f1ef88f07eeac800406fcf8bb8ecd2e7c162a83408b7e85debc5c6243ff"
last-modified: Mon, 11 May 2026 17:10:22 GMT

Content Headers

Content-Length

Content

5521

Content-Type

Content

text/html; charset=utf-8

content-length: 5521
content-type: text/html; charset=utf-8

Server Headers

No server headers found

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, 11 May 2026 20:12:32 GMT

X-Cache

Other

MISS

X-Cache-Hits

Other

0

X-Served-By

Other

cache-bos-kbos510032-BOS

X-Timer

Other

S1778530352.882484,VS0,VE163

alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
date: Mon, 11 May 2026 20:12:32 GMT
x-cache: MISS
x-cache-hits: 0
x-served-by: cache-bos-kbos510032-BOS
x-timer: S1778530352.882484,VS0,VE163

Recommendations

Enable compression (gzip/brotli) to improve performance