HTTP Headers Analysis for https://outlook.cloud.microsoft

Detected Technologies from Headers

See all in URL Inspect 1

Microsoft IIS

HTTP Security Headers

Status

Strict-Transport-Security

Good

max-age=31536000; includeSubDomains

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

• Consider adding 'preload' to HSTS for maximum security
• 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

connection: close

Caching Headers

No caching headers found

Content Headers

Content-Length

Content

0

content-length: 0

Server Headers

Server

Microsoft-HTTPAPI/2.0

server: Microsoft-HTTPAPI/2.0

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443";ma=2592000,h3-29=":443";ma=2592000

Date

Other

Wed, 07 Oct 2026 13:39:51 GMT

Ms-Cv

Other

GPztB+H0yB1BuOAEGDOOyA.1

Nel

Other

Report-To Group NelOfficeUpload1 max-age: 2h

success: 1.0% failure: 100.0% include subdomains

Report-To

Other

Group NelOfficeUpload1 max-age: 2h

Endpoint 1 https://exo.nel.measure.office.net/api/report?TenantId=&FrontEnd=Cafe&DestinationEndpoint=LYH&RemoteIP=216.246.40.0&Environment=MT&HttpStatusFrom=BE&ServiceName=Default.mail&MiraPartnerName=

Request-Id

Other

07edfc18-f4e1-1dc8-41b8-e00418338ec8

X-Backendhttpstatus

Other

417

X-Besku

Other

UNKNOWN

X-Calculatedbetarget

Other

LV5PR03MB8363.NAMPRD03.PROD.OUTLOOK.COM

X-Feserver

Other

BN9PR03CA0677

X-Firsthopcafeefz

Other

LYH

X-Nanoproxy

Other

1

X-Proxy-Backendserverstatus

Other

417

X-Proxy-Routingcorrectness

Other

1

alt-svc: h3=":443";ma=2592000,h3-29=":443";ma=2592000
date: Wed, 07 Oct 2026 13:39:51 GMT
ms-cv: GPztB+H0yB1BuOAEGDOOyA.1
nel: {"report_to":"NelOfficeUpload1","max_age":7200,"include_subdomains":true,"failure_fraction":1.0,"success_fraction":0.01}
report-to: {"group":"NelOfficeUpload1","max_age":7200,"endpoints":[{"url":"https://exo.nel.measure.office.net/api/report?TenantId=&FrontEnd=Cafe&DestinationEndpoint=LYH&RemoteIP=216.246.40.0&Environment=MT&HttpStatusFrom=BE&ServiceName=Default.mail&MiraPartnerName="}],"include_subdomains":true}
request-id: 07edfc18-f4e1-1dc8-41b8-e00418338ec8
x-backendhttpstatus: 417
x-besku: UNKNOWN
x-calculatedbetarget: LV5PR03MB8363.NAMPRD03.PROD.OUTLOOK.COM
x-feserver: BN9PR03CA0677
x-firsthopcafeefz: LYH
x-nanoproxy: 1
x-proxy-backendserverstatus: 417
x-proxy-routingcorrectness: 1

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching