HTTP Headers Analysis for https://platform.slack-edge.com

Detected Technologies from Headers

See all in URL Inspect 2

Apache

Envoy

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

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

Good

no-referrer

Permissions-Policy

Missing

Not configured

Recommendations

• 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
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Accept-Encoding

connection: close
transfer-encoding: chunked
vary: Accept-Encoding

Caching Headers

Cache-Control

Caching

private, no-cache, no-store, must-revalidate

Expires

Caching

Sat, 26 Jul 1997 05:00:00 GMT

Pragma

Caching

no-cache

cache-control: private, no-cache, no-store, must-revalidate
expires: Sat, 26 Jul 1997 05:00:00 GMT
pragma: no-cache

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

Server

Apache

server: Apache

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: b=5bc2d302ff8117208d2bd9c227c54eb7; expires=Mon, 31-Mar-2036 07:26:46 GMT; Max-Age=315619200; path=/; domain=.slack.com; secure; SameSite=None

Other Headers

Alt-Svc

Other

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

Date

Other

Tue, 31 Mar 2026 07:26:46 GMT

Timing-Allow-Origin

Other

*

Via

Other

1.1 slack-prod.tinyspeck.com, envoy-www-iad-vfvxbppr,envoy-edge-iad-bpdgvkmb

X-Backend

Other

main_normal

X-Edge-Backend

Other

envoy-www

X-Envoy-Attempt-Count

Other

1

X-Envoy-Upstream-Service-Time

Other

13

X-Geoname-Id

Other

notfound

X-Robots-Tag

Other

noindex,nofollow

X-Server

Other

slack-www-hhvm-main-iad-iqcteueb6iwn

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

act3NiKrKdh7mq7Warot9gAAEC0

alt-svc: h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, quic=":443"; ma=2592000
date: Tue, 31 Mar 2026 07:26:46 GMT
timing-allow-origin: *
via: 1.1 slack-prod.tinyspeck.com, envoy-www-iad-vfvxbppr,envoy-edge-iad-bpdgvkmb
x-backend: main_normal
x-edge-backend: envoy-www
x-envoy-attempt-count: 1
x-envoy-upstream-service-time: 13
x-geoname-id: notfound
x-robots-tag: noindex,nofollow
x-server: slack-www-hhvm-main-iad-iqcteueb6iwn
x-slack-backend: r
x-slack-edge-shared-secret-outcome: no-match
x-slack-shared-secret-outcome: no-match
x-slack-unique-id: act3NiKrKdh7mq7Warot9gAAEC0

Recommendations

Enable compression (gzip/brotli) to improve performance