HTTP Headers Analysis for https://status.authsmtp.com

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare NEL Monitoring

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=64072000; includeSubDomains; preload

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

• 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

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

sec-fetch-dest,sec-fetch-mode,sec-fetch-site,sec-fetch-user,accept-encoding

connection: close
transfer-encoding: chunked
vary: sec-fetch-dest,sec-fetch-mode,sec-fetch-site,sec-fetch-user,accept-encoding

Caching Headers

Cache-Control

Caching

private,no-cache,no-store,max-age=0,must-revalidate

Expires

Caching

Thu, 01 Jan 1970 00:00:00 GMT

Pragma

Caching

no-cache

cache-control: private,no-cache,no-store,max-age=0,must-revalidate
expires: Thu, 01 Jan 1970 00:00:00 GMT
pragma: no-cache

Content Headers

Content-Language

Content

en-US

Content-Type

Content

text/html;charset=UTF-8

content-language: en-US
content-type: text/html;charset=UTF-8

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: zalb_28fc6058a7=94f330ed7cfe20fbb0cb495f2f5539a7; Path=/; Secure; HttpOnly

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9f653b1dab2cc96f-IAD

Date

Other

Mon, 04 May 2026 05:50:58 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=PA8gL8RhAaGadIsiXAVqxePKbm1HgzrsGZKNL8GeA7US0effp9ilfxqoU7avNIxqgv7B0BfN6l0j%2Bd9ZwaJWSMldr0X%2Bw67at%2FV6lQks7z0NsAgyPYwXKg%2FGaAZRLrXCfdLAUKvyQ3JZ

Server-Timing

Other

cfCacheStatus;desc="DYNAMIC", cfEdge;dur=46,cfOrigin;dur=344

Speculation-Rules

Other

"/cdn-cgi/speculation"

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: 9f653b1dab2cc96f-IAD
date: Mon, 04 May 2026 05:50:58 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=PA8gL8RhAaGadIsiXAVqxePKbm1HgzrsGZKNL8GeA7US0effp9ilfxqoU7avNIxqgv7B0BfN6l0j%2Bd9ZwaJWSMldr0X%2Bw67at%2FV6lQks7z0NsAgyPYwXKg%2FGaAZRLrXCfdLAUKvyQ3JZ"}]}
server-timing: cfCacheStatus;desc="DYNAMIC", cfEdge;dur=46,cfOrigin;dur=344
speculation-rules: "/cdn-cgi/speculation"

Recommendations

Enable compression (gzip/brotli) to improve performance