HTTP Headers Analysis for https://concert.io

Detected Technologies from Headers

See all in URL Inspect 2

Framer

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

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

Good

nosniff

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Add Content-Security-Policy header to prevent XSS attacks
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• 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

Accept-Encoding, Accept

accept-ranges: bytes
connection: close
vary: Accept-Encoding, Accept

Caching Headers

Cache-Control

Caching

public, max-age=0, must-revalidate

Etag

Caching

"349e73df67a304db33ebc59bdab9e628"

Last-Modified

Caching

Tue, 11 Mar 2025 23:10:06 GMT

cache-control: public, max-age=0, must-revalidate
etag: "349e73df67a304db33ebc59bdab9e628"
last-modified: Tue, 11 Mar 2025 23:10:06 GMT

Content Headers

Content-Length

Content

275098

Content-Type

Content

text/html

content-length: 275098
content-type: text/html

Server Headers

Server

Framer/a338d3d

server: Framer/a338d3d

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Tue, 05 May 2026 17:58:22 GMT

Link

Other

URL

https://framerusercontent.com

rel=preconnect

URL

https://framerusercontent.com

rel=preconnect crossorigin

Server-Timing

Other

region;desc="us-east-1", cache;desc="cached", ssg-status;desc="optimized", version;desc="a338d3d", route;dur=1;desc="id=orJfxYHae&locale=default"

Via

Other

1.1 varnish

X-Cache

Other

MISS

X-Cache-Hits

Other

0

X-Served-By

Other

cache-nyc-kteb1890080-NYC

X-Timer

Other

S1778003902.044607,VS0,VE44

date: Tue, 05 May 2026 17:58:22 GMT
link: <https://framerusercontent.com>; rel="preconnect", <https://framerusercontent.com>; rel="preconnect"; crossorigin=""
server-timing: region;desc="us-east-1", cache;desc="cached", ssg-status;desc="optimized", version;desc="a338d3d", route;dur=1;desc="id=orJfxYHae&locale=default"
via: 1.1 varnish
x-cache: MISS
x-cache-hits: 0
x-served-by: cache-nyc-kteb1890080-NYC
x-timer: S1778003902.044607,VS0,VE44

Recommendations

Enable compression (gzip/brotli) to improve performance