HTTP Headers Analysis for https://code.iconify.design

Detected Technologies from Headers

See all in URL Inspect 5

Cloudflare NEL Monitoring

Cloudflare CDN

Fastly

GitHub

Varnish

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

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Accept-Encoding

connection: close
transfer-encoding: chunked
vary: Accept-Encoding

Caching Headers

Age

Caching

0

Cache-Control

Caching

max-age=600

Expires

Caching

Tue, 07 Apr 2026 19:30:09 GMT

Last-Modified

Caching

Sat, 28 Mar 2026 07:10:45 GMT

age: 0
cache-control: max-age=600
expires: Tue, 07 Apr 2026 19:30:09 GMT
last-modified: Sat, 28 Mar 2026 07:10:45 GMT

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

Access-Control-Allow-Origin

Cors

*

access-control-allow-origin: *

Cookies Headers

No cookies headers found

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9e8b635439d7c98c-IAD

Date

Other

Tue, 07 Apr 2026 19:20:09 GMT

Nel

Other

Report-To Group cf-nel max-age: 1w

success: 0.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=iXntnWeRJPjvN0CrATX97rNAfU2cIoVvLahYqHlM5OSkRT3wSrOwQUDUUGzsDIB%2Br%2BPdij%2BitVxvXExt01EBpojbrNAQs8sWfMcuSuyeLiCUv4RYr6WddfGmhgrYKfcdaeEwKSs%3D

Via

Other

1.1 varnish

X-Cache

Other

MISS

X-Cache-Hits

Other

0

X-Fastly-Request-Id

Other

ed4c9983129dddeb4c2ddbbafa791c9aa40ae1f5

X-Github-Request-Id

Other

814E:2AA725:5C7ED6:627936:69D558E9

X-Proxy-Cache

Other

MISS

X-Served-By

Other

cache-iad-kiad7000111-IAD

X-Timer

Other

S1775589610.643177,VS0,VE11

cf-cache-status: DYNAMIC
cf-ray: 9e8b635439d7c98c-IAD
date: Tue, 07 Apr 2026 19:20:09 GMT
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=iXntnWeRJPjvN0CrATX97rNAfU2cIoVvLahYqHlM5OSkRT3wSrOwQUDUUGzsDIB%2Br%2BPdij%2BitVxvXExt01EBpojbrNAQs8sWfMcuSuyeLiCUv4RYr6WddfGmhgrYKfcdaeEwKSs%3D"}]}
via: 1.1 varnish
x-cache: MISS
x-cache-hits: 0
x-fastly-request-id: ed4c9983129dddeb4c2ddbbafa791c9aa40ae1f5
x-github-request-id: 814E:2AA725:5C7ED6:627936:69D558E9
x-proxy-cache: MISS
x-served-by: cache-iad-kiad7000111-IAD
x-timer: S1775589610.643177,VS0,VE11

Recommendations

Enable compression (gzip/brotli) to improve performance