Logs for the probe: ts=2026-04-17T15:49:26.322259617Z caller=main.go:320 module=http_2xx target=prometheus.io level=info msg="Beginning probe" probe=http timeout_seconds=5 ts=2026-04-17T15:49:26.322470566Z caller=http.go:335 module=http_2xx target=prometheus.io level=info msg="Resolving target address" ip_protocol=ip4 ts=2026-04-17T15:49:26.343096571Z caller=http.go:335 module=http_2xx target=prometheus.io level=info msg="Resolved target address" ip=104.21.60.220 ts=2026-04-17T15:49:26.343166768Z caller=client.go:251 module=http_2xx target=prometheus.io level=info msg="Making HTTP request" url=http://104.21.60.220 host=prometheus.io ts=2026-04-17T15:49:26.729831607Z caller=client.go:492 module=http_2xx target=prometheus.io level=info msg="Received redirect" location=https://prometheus.io/ ts=2026-04-17T15:49:26.729895444Z caller=client.go:251 module=http_2xx target=prometheus.io level=info msg="Making HTTP request" url=https://prometheus.io/ host= ts=2026-04-17T15:49:26.729910816Z caller=client.go:251 module=http_2xx target=prometheus.io level=info msg="Address does not match first address, not sending TLS ServerName" first=104.21.60.220 address=prometheus.io ts=2026-04-17T15:49:27.386132316Z caller=main.go:130 module=http_2xx target=prometheus.io level=info msg="Received HTTP response" status_code=200 ts=2026-04-17T15:49:28.246765201Z caller=main.go:130 module=http_2xx target=prometheus.io level=info msg="Response timings for roundtrip" roundtrip=0 start=2026-04-17T15:49:26.343230691Z dnsDone=2026-04-17T15:49:26.343230691Z connectDone=2026-04-17T15:49:26.535603552Z gotConn=2026-04-17T15:49:26.535658979Z responseStart=2026-04-17T15:49:26.729705154Z tlsStart=0001-01-01T00:00:00Z tlsDone=0001-01-01T00:00:00Z end=0001-01-01T00:00:00Z ts=2026-04-17T15:49:28.246851141Z caller=main.go:130 module=http_2xx target=prometheus.io level=info msg="Response timings for roundtrip" roundtrip=1 start=2026-04-17T15:49:26.729996828Z dnsDone=2026-04-17T15:49:26.731558162Z connectDone=2026-04-17T15:49:26.934011715Z gotConn=2026-04-17T15:49:27.163728898Z responseStart=2026-04-17T15:49:27.386078758Z tlsStart=2026-04-17T15:49:26.934072802Z tlsDone=2026-04-17T15:49:27.16364748Z end=2026-04-17T15:49:28.246747361Z ts=2026-04-17T15:49:28.246938613Z caller=main.go:320 module=http_2xx target=prometheus.io level=info msg="Probe succeeded" duration_seconds=1.9246055499999999 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 0.020655729 # HELP probe_duration_seconds Returns how long the probe took to complete in seconds # TYPE probe_duration_seconds gauge probe_duration_seconds 1.9246055499999999 # 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 0 # 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"} 0.394881857 probe_http_duration_seconds{phase="processing"} 0.416396067 probe_http_duration_seconds{phase="resolve"} 0.022217064 probe_http_duration_seconds{phase="tls"} 0.229574693 probe_http_duration_seconds{phase="transfer"} 0.860668601 # 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 135792 # 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 2.590428662e+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 earliest SSL cert expiry in unixtime # TYPE probe_ssl_earliest_cert_expiry gauge probe_ssl_earliest_cert_expiry 1.783159903e+09 # HELP probe_ssl_last_chain_expiry_timestamp_seconds Returns last SSL chain expiry in timestamp seconds # TYPE probe_ssl_last_chain_expiry_timestamp_seconds gauge probe_ssl_last_chain_expiry_timestamp_seconds 1.783159903e+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="43dbbf6995d18b2b52137b0ce1373f5309f30d5b11fd3c60ccdb53365ac59bce"} 1 # HELP probe_success Displays whether or not the probe was a success # TYPE probe_success gauge probe_success 1 # HELP probe_tls_version_info Contains the TLS version used # TYPE probe_tls_version_info gauge probe_tls_version_info{version="TLS 1.3"} 1 Module configuration: prober: http timeout: 5s http: valid_http_versions: - HTTP/1.1 - HTTP/2.0 preferred_ip_protocol: ip4 ip_protocol_fallback: true follow_redirects: true tcp: ip_protocol_fallback: true icmp: ip_protocol_fallback: true dns: ip_protocol_fallback: true