HTTP Headers Analysis for https://teams.microsoft.com

Detected Technologies from Headers

See all in URL Inspect 2

Envoy

Microsoft 365

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=2592000

Content-Security-Policy

Good

base-uri; default-src; form-action; +11 more 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

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Strengthen CSP by removing 'unsafe-eval'
• 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

connection: close

Caching Headers

Cache-Control

Caching

no-store, no-transform, must-revalidate, no-cache

Expires

Caching

Thu, 19 Feb 2026 00:02:38 GMT

cache-control: no-store, no-transform, must-revalidate, no-cache
expires: Thu, 19 Feb 2026 00:02:38 GMT

Content Headers

Content-Length

Content

240264

Content-Type

Content

text/html; charset=utf-8

content-length: 240264
content-type: text/html; charset=utf-8

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: clocale=en-us; expires=Sat, 20 Feb 2027 00:02:38 GMT; path=/;Partitioned; secure; httponly
MUIDB=3A6608A7D2D162E0125D1FA1D35A63A1; path=/; httponly; secure; expires=Wed, 17-Mar-2027 00:02:38 GMT

Other Headers

Date

Other

Fri, 20 Feb 2026 00:02:37 GMT

Reporting-Endpoints

Other

csp="https://csp.microsoft.com/report/teams-web-r4?v=26011511118&env=prod&exp=react-web-client&endpoint=unsupported-browser"

Requestid

Other

3549b3de72d396c91628adcd2108d701

Timing-Allow-Origin

Other

*

X-Cache

Other

CONFIG_NOCACHE

X-Envoy-Upstream-Service-Time

Other

6

X-Msedge-Ref

Other

Ref A: 8893F1C7368A42ABA8FB88B4CECCD58F Ref B: MNZ221060610011 Ref C: 2026-02-20T00:02:38Z

X-Request-Id

Other

850ae168-df5e-4589-89ca-67d77f4be30f

X-Ring-Info

Other

web: general [assigned];

date: Fri, 20 Feb 2026 00:02:37 GMT
reporting-endpoints: csp="https://csp.microsoft.com/report/teams-web-r4?v=26011511118&env=prod&exp=react-web-client&endpoint=unsupported-browser"
requestid: 3549b3de72d396c91628adcd2108d701
timing-allow-origin: *
x-cache: CONFIG_NOCACHE
x-envoy-upstream-service-time: 6
x-msedge-ref: Ref A: 8893F1C7368A42ABA8FB88B4CECCD58F Ref B: MNZ221060610011 Ref C: 2026-02-20T00:02:38Z
x-request-id: 850ae168-df5e-4589-89ca-67d77f4be30f
x-ring-info: web: general [assigned];

Recommendations

Enable compression (gzip/brotli) to improve performance