This is the output:
- About to connect() to hooks.slack.com port 443 (#0)
- Trying 3.68.170.153…
- Connected to hooks.slack.com (3.68.170.153) port 443 (#0)
- Initializing NSS with certpath: sql:/etc/pki/nssdb
- CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none - SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- Server certificate:
-
subject: CN=slack.com -
start date: Mar 14 05:17:13 2023 GMT -
expire date: Jun 12 05:17:12 2023 GMT -
common name: slack.com -
issuer: CN=R3,O=Let's Encrypt,C=US
GET / HTTP/1.1
User-Agent: curl/7.29.0
Host: hooks.slack.com
Accept: /
< HTTP/1.1 302 Found
< date: Tue, 21 Mar 2023 19:50:07 GMT
< server: Apache
< x-powered-by: HHVM/4.153.1
< x-frame-options: SAMEORIGIN
< referrer-policy: no-referrer
< x-slack-backend: r
< x-slack-unique-id: ZBoKb1jG313ZdWHYAQTKBwAAABs
< strict-transport-security: max-age=31536000; includeSubDomains; preload
< vary: Accept-Encoding
< location: https://api.slack.com/
< content-length: 0
< content-type: text/html
< x-envoy-upstream-service-time: 99
< x-backend: main_normal main_canary_with_overflow main_control_with_overflow
< x-server: slack-www-hhvm-main-iad-pewl
< x-slack-shared-secret-outcome: no-match
< via: envoy-www-iad-xerk, envoy-edge-fra-pgmz
< x-edge-backend: envoy-www
< x-slack-edge-shared-secret-outcome: no-match
<
- Connection #0 to host hooks.slack.com left intact