HTTP Headers Analysis for https://il.pycon.org

Detected Technologies from Headers

See all in URL Inspect 5

Cloudflare NEL Monitoring

Cloudflare CDN

Fastly

GitHub Active incidents

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=63072000; includeSubDomains; preload

Content-Security-Policy

Weak

upgrade-insecure-requests Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Good

SAMEORIGIN

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Missing

Not configured

Permissions-Policy

Present

interest-cohort=()

Recommendations

• Significantly strengthen CSP directives
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)

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

205

Cache-Control

Caching

max-age=600

Expires

Caching

Tue, 04 Aug 2026 02:11:36 GMT

Last-Modified

Caching

Tue, 03 Mar 2026 06:10:07 GMT

age: 205
cache-control: max-age=600
expires: Tue, 04 Aug 2026 02:11:36 GMT
last-modified: Tue, 03 Mar 2026 06:10:07 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

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

a2704bbefd545e53-IAD

Date

Other

Thu, 06 Aug 2026 19:02:26 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=Jd5kWQytkGGRO9X798bGYcBit0g1PfaY9LG0k7NLdLQ%2BLKz%2FVvPeZ0G3GZXmulK0jag6A0oROkrevZngai7VpjlmWoAXP8MnwLCtdNyoJGeFRWaP7Dmzt4RetABeRaQ%3D

Server-Timing

Other

cfCacheStatus;desc="DYNAMIC", cfEdge;dur=11,cfOrigin;dur=308

Via

Other

1.1 varnish

X-Cache

Other

HIT

X-Cache-Hits

Other

1

X-Download-Options

Other

noopen

X-Fastly-Request-Id

Other

f06d9cdf2ada87851d9835e8f5f158b99fce8a01

X-Github-Edge-Region

Other

fra

X-Github-Request-Id

Other

ACB8:1E5062:D6FD02F:D800F77:6A714800

X-Permitted-Cross-Domain-Policies

Other

none

X-Proxy-Cache

Other

MISS

X-Served-By

Other

cache-fra-eddf8230059-FRA

X-Sso-Wat

Other

You've just been SSOed

X-Timer

Other

S1786042947.664475,VS0,VE2

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: a2704bbefd545e53-IAD
date: Thu, 06 Aug 2026 19:02:26 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=Jd5kWQytkGGRO9X798bGYcBit0g1PfaY9LG0k7NLdLQ%2BLKz%2FVvPeZ0G3GZXmulK0jag6A0oROkrevZngai7VpjlmWoAXP8MnwLCtdNyoJGeFRWaP7Dmzt4RetABeRaQ%3D"}]}
server-timing: cfCacheStatus;desc="DYNAMIC", cfEdge;dur=11,cfOrigin;dur=308
via: 1.1 varnish
x-cache: HIT
x-cache-hits: 1
x-download-options: noopen
x-fastly-request-id: f06d9cdf2ada87851d9835e8f5f158b99fce8a01
x-github-edge-region: fra
x-github-request-id: ACB8:1E5062:D6FD02F:D800F77:6A714800
x-permitted-cross-domain-policies: none
x-proxy-cache: MISS
x-served-by: cache-fra-eddf8230059-FRA
x-sso-wat: You've just been SSOed
x-timer: S1786042947.664475,VS0,VE2

Recommendations

Enable compression (gzip/brotli) to improve performance