Open
Cached
·
just now
23
Headers
HTTP Security Headers
Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add X-Content-Type-Options: nosniff
- • Consider adding Permissions-Policy to control browser features
Performance Headers
2 headers
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding
Caching Headers
0 headers
No caching headers found
Content Headers
1 headers
Content-Type
Content
text/html; charset=utf-8
Server Headers
1 headers
Server
Server
Apache
CORS Headers
0 headers
No CORS headers found
Cookies Headers
1 headers
Set-Cookie
Cookies
x=ef17a454fc99a7549bc4b1cf6f1ffe7b.1762135109; expires=Mon, 03-Nov-2025 02:13:29 GMT; Max-Age=900; path=/; domain=.slack.com; secure; SameSite=None
Other Headers
13 headers
Alt-Svc
Other
h3=":443"; ma=10800, h3-29=":443"; ma=10800, quic=":443"; ma=10800
Date
Other
Mon, 03 Nov 2025 01:58:29 GMT
Timing-Allow-Origin
Other
*
Via
Other
1.1 slack-prod.tinyspeck.com, envoy-www-iad-wjhbipdp,envoy-edge-cmh-djqeccbm
X-Backend
Other
main_normal main_canary_with_overflow main_control_with_overflow
X-Edge-Backend
Other
envoy-www
X-Envoy-Attempt-Count
Other
1
X-Envoy-Upstream-Service-Time
Other
117
X-Server
Other
slack-www-hhvm-main-iad-xejr
X-Slack-Backend
Other
r
X-Slack-Edge-Shared-Secret-Outcome
Other
no-match
X-Slack-Shared-Secret-Outcome
Other
no-match
X-Slack-Unique-Id
Other
aQgMRd1qTCKhxyV1dbryvQAAEAg
Recommendations
Enable compression (gzip/brotli) to improve performance
Add Cache-Control header to optimize caching
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