Logs for the probe: time=2026-04-13T09:50:13.474Z level=INFO source=handler.go:122 msg="Beginning probe" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al probe=http timeout_seconds=9.5 time=2026-04-13T09:50:13.474Z level=INFO source=utils.go:61 msg="Resolving target address" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al target=slack-invite.cpp.al ip_protocol=ip4 time=2026-04-13T09:50:13.477Z level=INFO source=utils.go:96 msg="Resolved target address" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al target=slack-invite.cpp.al ip=50.17.180.88 time=2026-04-13T09:50:13.478Z level=INFO source=http.go:153 msg="Making HTTP request" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al url=https://50.17.180.88 host=slack-invite.cpp.al time=2026-04-13T09:50:13.566Z level=INFO source=http.go:381 msg="Received redirect" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al location=https://cppalliance.org/slack/ time=2026-04-13T09:50:13.566Z level=INFO source=http.go:153 msg="Making HTTP request" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al url=https://cppalliance.org/slack/ host="" time=2026-04-13T09:50:13.566Z level=INFO source=http.go:169 msg="Address does not match first address, not sending TLS ServerName" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al first=50.17.180.88 address=cppalliance.org time=2026-04-13T09:50:17.025Z level=INFO source=http.go:479 msg="Received HTTP response" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al status_code=200 time=2026-04-13T09:50:22.974Z level=ERROR source=http.go:49 msg="Error reading HTTP body" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al err="context deadline exceeded" time=2026-04-13T09:50:22.975Z level=INFO source=http.go:553 msg="Failed to read HTTP response body" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al err="context deadline exceeded" time=2026-04-13T09:50:22.975Z level=INFO source=http.go:601 msg="Response timings for roundtrip" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al roundtrip=0 start=2026-04-13T09:50:13.478Z dnsDone=2026-04-13T09:50:13.478Z connectDone=2026-04-13T09:50:13.506Z gotConn=2026-04-13T09:50:13.538Z responseStart=2026-04-13T09:50:13.566Z tlsStart=2026-04-13T09:50:13.506Z tlsDone=2026-04-13T09:50:13.538Z end=0001-01-01T00:00:00.000Z time=2026-04-13T09:50:22.975Z level=INFO source=http.go:601 msg="Response timings for roundtrip" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al roundtrip=1 start=2026-04-13T09:50:13.566Z dnsDone=2026-04-13T09:50:13.568Z connectDone=2026-04-13T09:50:13.757Z gotConn=2026-04-13T09:50:14.357Z responseStart=2026-04-13T09:50:17.025Z tlsStart=2026-04-13T09:50:13.757Z tlsDone=2026-04-13T09:50:14.357Z end=2026-04-13T09:50:22.975Z time=2026-04-13T09:50:22.976Z level=ERROR source=handler.go:135 msg="Probe failed" module=http_cppalliance_org_slack target=https://slack-invite.cpp.al duration_seconds=9.501844467 Metrics that would have been returned: # HELP probe_dns_lookup_time_seconds Returns the time taken for probe dns lookup in seconds # TYPE probe_dns_lookup_time_seconds gauge probe_dns_lookup_time_seconds 0.003280896 # HELP probe_duration_seconds Returns how long the probe took to complete in seconds # TYPE probe_duration_seconds gauge probe_duration_seconds 9.501844467 # HELP probe_failed_due_to_regex Indicates if probe failed due to regex # TYPE probe_failed_due_to_regex gauge probe_failed_due_to_regex 1 # HELP probe_http_content_length Length of http content response # TYPE probe_http_content_length gauge probe_http_content_length -1 # HELP probe_http_duration_seconds Duration of http request by phase, summed over all redirects # TYPE probe_http_duration_seconds gauge probe_http_duration_seconds{phase="connect"} 0.217507212 probe_http_duration_seconds{phase="processing"} 2.6963992610000003 probe_http_duration_seconds{phase="resolve"} 0.004670312 probe_http_duration_seconds{phase="tls"} 0.631454065 probe_http_duration_seconds{phase="transfer"} 5.949996061 # HELP probe_http_last_modified_timestamp_seconds Returns the Last-Modified HTTP response header in unixtime # TYPE probe_http_last_modified_timestamp_seconds gauge probe_http_last_modified_timestamp_seconds 1.775907406e+09 # HELP probe_http_redirects The number of redirects # TYPE probe_http_redirects gauge probe_http_redirects 1 # HELP probe_http_ssl Indicates if SSL was used for the final redirect # TYPE probe_http_ssl gauge probe_http_ssl 1 # HELP probe_http_status_code Response HTTP status code # TYPE probe_http_status_code gauge probe_http_status_code 200 # HELP probe_http_uncompressed_body_length Length of uncompressed response body # TYPE probe_http_uncompressed_body_length gauge probe_http_uncompressed_body_length 0 # HELP probe_http_version Returns the version of HTTP of the probe response # TYPE probe_http_version gauge probe_http_version 2 # HELP probe_ip_addr_hash Specifies the hash of IP address. It's useful to detect if the IP address changes. # TYPE probe_ip_addr_hash gauge probe_ip_addr_hash 2.518197584e+09 # HELP probe_ip_protocol Specifies whether probe ip protocol is IP4 or IP6 # TYPE probe_ip_protocol gauge probe_ip_protocol 4 # HELP probe_ssl_earliest_cert_expiry Returns last SSL chain expiry in unixtime # TYPE probe_ssl_earliest_cert_expiry gauge probe_ssl_earliest_cert_expiry 1.783341201e+09 # HELP probe_ssl_last_chain_expiry_timestamp_seconds Returns last SSL chain expiry in timestamp # TYPE probe_ssl_last_chain_expiry_timestamp_seconds gauge probe_ssl_last_chain_expiry_timestamp_seconds 1.783341201e+09 # HELP probe_ssl_last_chain_info Contains SSL leaf certificate information # TYPE probe_ssl_last_chain_info gauge probe_ssl_last_chain_info{fingerprint_sha256="565e45f8c84f039bb8242a0a0aba72e4aca3fe6e483ccd8a7b947ff8d8607805",issuer="CN=WE1,O=Google Trust Services,C=US",serialnumber="39d476fcef204e45138848ba1b6735ee",subject="CN=cppalliance.org",subjectalternative="cppalliance.org,*.cppalliance.org"} 1 # HELP probe_success Displays whether or not the probe was a success # TYPE probe_success gauge probe_success 0 # HELP probe_tls_cipher_info Returns the TLS cipher negotiated during handshake # TYPE probe_tls_cipher_info gauge probe_tls_cipher_info{cipher="TLS_AES_128_GCM_SHA256"} 1 # HELP probe_tls_version_info Returns the TLS version used or NaN when unknown # TYPE probe_tls_version_info gauge probe_tls_version_info{version="TLS 1.3"} 1 Module configuration: prober: http http: preferred_ip_protocol: ip4 ip_protocol_fallback: true fail_if_body_not_matches_regexp: - This is a multi-channel Slack workspace environment which gathers users of C\+\+ follow_redirects: true enable_http2: true tcp: ip_protocol_fallback: true icmp: ip_protocol_fallback: true ttl: 64 dns: ip_protocol_fallback: true recursion_desired: true