DNS Gurus
Cached · 2h ago
21 Headers

Detected Technologies from Headers

See all in URL Inspect 2
Apache logo Apache Envoy logo Envoy

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
Good
SAMEORIGIN
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-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
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

No caching headers found

Content Headers

Content-Type
Content
text/html; charset=utf-8

Server Headers

Server
Apache logo
Server
Apache

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, quic=":443"; ma=2592000
Date
Other
Tue, 07 Apr 2026 21:03:00 GMT
Timing-Allow-Origin
Other
*
Via
Envoy logo
Other
1.1 slack-prod.tinyspeck.com, envoy-www-iad-fvpeazdq,envoy-edge-iad-dgtuwdpv
X-Backend
Other
main_normal
X-Edge-Backend
Other
envoy-www
X-Envoy-Attempt-Count
Envoy logo
Other
1
X-Envoy-Upstream-Service-Time
Envoy logo
Other
127
X-Geoname-Id
Other
notfound
X-Server
Other
slack-www-hhvm-main-iad-rbs4cch96ibr
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
adVxA7lDD9rAAQ1WEgNjBgAAAAc

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching