HTTP Headers Analysis for https://classroom.google.com

HTTP Security Headers

Status

Strict-Transport-Security

Good

max-age=31536000; includeSubDomains

Content-Security-Policy

Weak

require-trusted-types-for; report-uri; object-src; +3 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Missing

Not configured

Permissions-Policy

Present

ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*; +6 more

Recommendations

• Consider adding 'preload' to HSTS for maximum security
• Significantly strengthen CSP directives
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)

Performance Headers

Accept-Ranges

Performance

none

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site,Accept-Encoding

accept-ranges: none
connection: close
transfer-encoding: chunked
vary: Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site,Accept-Encoding

Caching Headers

Cache-Control

Caching

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

Expires

Caching

Mon, 01 Jan 1990 00:00:00 GMT

Pragma

Caching

no-cache

cache-control: no-cache, no-store, max-age=0, must-revalidate
expires: Mon, 01 Jan 1990 00:00:00 GMT
pragma: no-cache

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

Server

ESF

server: ESF

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: __Host-GAPS=1:UQUEOrodWJTA5qMmgKS6kyoguolzgQ:Z3ipkBiG0W65mQmo; Expires=Mon, 10-Apr-2028 22:33:35 GMT; Path=/; Secure; HttpOnly; Priority=HIGH

Other Headers

Accept-Ch

Other

Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version

Alt-Svc

Other

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

Cross-Origin-Opener-Policy-Report-Only

Other

same-origin; report-to="AccountsSignInUi"

Date

Other

Sat, 11 Apr 2026 22:33:35 GMT

Link

Other

URL https://edu.google.com/workspace-for-education/products/classroom/

rel=canonical

Report-To

Other

Group AccountsSignInUi max-age: 4w

Endpoint 1 https://csp.withgoogle.com/csp/report-to/AccountsSignInUi

Reporting-Endpoints

Other

default="/v3/signin/_/AccountsSignInUi/web-reports?context=eJwNw11IU3EcBuC19nsZ1oXECNlFhNDHgtlp-AUjREaIuO38dRdBkNOxmYvY6uwYaARF5UVBYaWGdBHdVWgQfVPMi6SGpKUTj06jixWGhlQwuljQ-8BTsbb1QIXbFtzvtr2tfm1vPl60H-GR7T_sY3xlaUZG2bw_K4N8le_y4YefpJl7uz7LKT60e04CnB6bkwwHj86L4iFXXobZqMrLZfY05sXLsXsL0sPvPJZ84N8DlrjOWRIoWdLCzwYK8op3LhfEzQ7_ijg5l1-Rj2zbtyoObhpdlQCXL7TCdrEVay1t2OCn3iBe8s3vQYywpyYELx9LhtDJpUwITjOE9cEwNjl3O4wCF7nEj4bDeMybJ3T84YYhHX6eeK7jCS9kdSyx46eOa7UKN_gfb6lTcLcr7OI97GEf13PXSYU4P7ikMM7L_IVTLxQM7ufzvHdKoZGnFhVy_KasMMnveZrT2XZk2H-9A03c9qsDOldWReDir90RFPkvl7nzVgQx3rHNmb2zPoPKyW-Ws_pgLH0mmownUmbS7O8x0ikzkYp395m9fclMwjibMKI-zVev1WoNNVpd9LT2Hyqo0FQ"

X-Auto-Login

Other

realm=com.google&args=service%3Dclassroom%26continue%3Dhttps://classroom.google.com/

X-Ua-Compatible

Other

IE=edge

accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-WoW64, Sec-CH-UA-Form-Factors, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
cross-origin-opener-policy-report-only: same-origin; report-to="AccountsSignInUi"
date: Sat, 11 Apr 2026 22:33:35 GMT
link: <https://edu.google.com/workspace-for-education/products/classroom/>; rel="canonical"
report-to: {"group":"AccountsSignInUi","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/AccountsSignInUi"}]}
reporting-endpoints: default="/v3/signin/_/AccountsSignInUi/web-reports?context=eJwNw11IU3EcBuC19nsZ1oXECNlFhNDHgtlp-AUjREaIuO38dRdBkNOxmYvY6uwYaARF5UVBYaWGdBHdVWgQfVPMi6SGpKUTj06jixWGhlQwuljQ-8BTsbb1QIXbFtzvtr2tfm1vPl60H-GR7T_sY3xlaUZG2bw_K4N8le_y4YefpJl7uz7LKT60e04CnB6bkwwHj86L4iFXXobZqMrLZfY05sXLsXsL0sPvPJZ84N8DlrjOWRIoWdLCzwYK8op3LhfEzQ7_ijg5l1-Rj2zbtyoObhpdlQCXL7TCdrEVay1t2OCn3iBe8s3vQYywpyYELx9LhtDJpUwITjOE9cEwNjl3O4wCF7nEj4bDeMybJ3T84YYhHX6eeK7jCS9kdSyx46eOa7UKN_gfb6lTcLcr7OI97GEf13PXSYU4P7ikMM7L_IVTLxQM7ufzvHdKoZGnFhVy_KasMMnveZrT2XZk2H-9A03c9qsDOldWReDir90RFPkvl7nzVgQx3rHNmb2zPoPKyW-Ws_pgLH0mmownUmbS7O8x0ikzkYp395m9fclMwjibMKI-zVev1WoNNVpd9LT2Hyqo0FQ"
x-auto-login: realm=com.google&args=service%3Dclassroom%26continue%3Dhttps://classroom.google.com/
x-ua-compatible: IE=edge

Recommendations

Enable compression (gzip/brotli) to improve performance