HTTP Headers Analysis for https://sql.telemetry.mozilla.org

Detected Technologies from Headers

See all in URL Inspect 1

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Missing

Not configured

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

• Add Strict-Transport-Security header with max-age of at least 1 year
• 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

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

Accept-Encoding

accept-ranges: bytes
connection: close
vary: Accept-Encoding

Caching Headers

Cache-Control

Caching

private, no-store

cache-control: private, no-store

Content Headers

Content-Length

Content

3038

Content-Type

Content

text/html; charset=utf-8

content-length: 3038
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: _fs_ch_st_FSBmUei20MqUiJb9=AVBC4keQDiqdaeJM0bd0fTaJhWcXqML0BbjahOJMmCziZQqHMyPnFNCFpFRIP5NEhZTj2lNY8ua23rGsBK7A2PJKntSTDc1omYsIvThqBfM9gx_V8g6Rhzcl6oMnzAPoUjcsMsfI2Juv21fL9Cnj0Qizzd3C3sRJsVPQyOMgH0dr8ret0uVh4YQiqaR-kmZtYj3cgjrrq1MMQPTgNvQ3842arrjqfyadxZ3VkPQmwE7rY8sEY1Lx7LTT9av3vrsuiWJvPtR6hiA8RMGmdZV-ntAz8-izVu9SFIZRToY976gY5E694vhaAC-lpC1Jerh-2UactApzCl0cNQ1JEAecmOuujyxBhkpjh7Xw_XYZxSgvczqIpD1tJ5xHNMLlKnyP7w0K; Max-Age=10; HttpOnly; Path=/

Other Headers

Date

Other

Fri, 09 Oct 2026 14:43:58 GMT

Via

Other

1.1 varnish

X-Cache

Other

MISS

X-Cache-Hits

Other

0

X-Served-By

Other

cache-lga-kjfk8660032-LGA, cache-lga-kjfk8660032-LGA

X-Timer

Other

S1791557038.649978,VS0,VE535

date: Fri, 09 Oct 2026 14:43:58 GMT
via: 1.1 varnish
x-cache: MISS
x-cache-hits: 0
x-served-by: cache-lga-kjfk8660032-LGA, cache-lga-kjfk8660032-LGA
x-timer: S1791557038.649978,VS0,VE535

Recommendations

Enable compression (gzip/brotli) to improve performance