HTTP Headers Analysis for https://www.factoryio.com

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare NEL Monitoring

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31556926

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

• 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 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

x-fh-requested-host, accept-encoding

connection: close
transfer-encoding: chunked
vary: x-fh-requested-host, accept-encoding

Caching Headers

Cache-Control

Caching

max-age=3600

Last-Modified

Caching

Thu, 15 Jan 2026 10:34:06 GMT

cache-control: max-age=3600
last-modified: Thu, 15 Jan 2026 10:34:06 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

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9cf3d0cefd70311a-IAD

Date

Other

Tue, 17 Feb 2026 08:11:43 GMT

Nel

Other

{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}

Report-To

Other

{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=E6LxXs3ZZoA6TUsoysRe4nZJeVxzZj9otPXMcwSjPRnOf%2BcgsYoklNPKtGEUORJ2493j2XdQBkHZ4JgPZFhCnBCaYU5owlSyTZhrHA%3D%3D"}]}

Server-Timing

Other

cfCacheStatus;desc="DYNAMIC", cfEdge;dur=9,cfOrigin;dur=8

X-Cache

Other

HIT

X-Cache-Hits

Other

0

X-Served-By

Other

cache-iad-kiad7000113-IAD

X-Timer

Other

S1771315904.854329,VS0,VE1

cf-cache-status: DYNAMIC
cf-ray: 9cf3d0cefd70311a-IAD
date: Tue, 17 Feb 2026 08:11:43 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=E6LxXs3ZZoA6TUsoysRe4nZJeVxzZj9otPXMcwSjPRnOf%2BcgsYoklNPKtGEUORJ2493j2XdQBkHZ4JgPZFhCnBCaYU5owlSyTZhrHA%3D%3D"}]}
server-timing: cfCacheStatus;desc="DYNAMIC", cfEdge;dur=9,cfOrigin;dur=8
x-cache: HIT
x-cache-hits: 0
x-served-by: cache-iad-kiad7000113-IAD
x-timer: S1771315904.854329,VS0,VE1

Recommendations

Enable compression (gzip/brotli) to improve performance