Logs for the probe: ts=2026-04-07T10:26:17.386453183Z caller=main.go:190 module=http_2xx target=prometheus.io level=info msg="Beginning probe" probe=http timeout_seconds=5 ts=2026-04-07T10:26:17.386620071Z caller=http.go:328 module=http_2xx target=prometheus.io level=info msg="Resolving target address" target=prometheus.io ip_protocol=ip4 ts=2026-04-07T10:26:17.392740294Z caller=http.go:328 module=http_2xx target=prometheus.io level=info msg="Resolved target address" target=prometheus.io ip=104.21.60.220 ts=2026-04-07T10:26:17.392876722Z caller=client.go:259 module=http_2xx target=prometheus.io level=info msg="Making HTTP request" url=http://104.21.60.220 host=prometheus.io ts=2026-04-07T10:26:17.407377048Z caller=client.go:505 module=http_2xx target=prometheus.io level=info msg="Received redirect" location=https://prometheus.io/ ts=2026-04-07T10:26:17.408008523Z caller=client.go:259 module=http_2xx target=prometheus.io level=info msg="Making HTTP request" url=https://prometheus.io/ host= ts=2026-04-07T10:26:17.408027033Z caller=client.go:259 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=2026-04-07T10:26:17.445856695Z caller=handler.go:119 module=http_2xx target=prometheus.io level=info msg="Received HTTP response" status_code=200 ts=2026-04-07T10:26:17.448295155Z caller=handler.go:119 module=http_2xx target=prometheus.io level=info msg="Response timings for roundtrip" roundtrip=0 start=2026-04-07T10:26:17.392966627Z dnsDone=2026-04-07T10:26:17.392966627Z connectDone=2026-04-07T10:26:17.396731221Z gotConn=2026-04-07T10:26:17.397186473Z responseStart=2026-04-07T10:26:17.407132739Z tlsStart=0001-01-01T00:00:00Z tlsDone=0001-01-01T00:00:00Z end=0001-01-01T00:00:00Z ts=2026-04-07T10:26:17.448390171Z caller=handler.go:119 module=http_2xx target=prometheus.io level=info msg="Response timings for roundtrip" roundtrip=1 start=2026-04-07T10:26:17.408127752Z dnsDone=2026-04-07T10:26:17.414570442Z connectDone=2026-04-07T10:26:17.416265389Z gotConn=2026-04-07T10:26:17.424201079Z responseStart=2026-04-07T10:26:17.445476493Z tlsStart=2026-04-07T10:26:17.416334643Z tlsDone=2026-04-07T10:26:17.424055028Z end=2026-04-07T10:26:17.448274191Z ts=2026-04-07T10:26:17.44848111Z caller=main.go:190 module=http_2xx target=prometheus.io level=info msg="Probe succeeded" duration_seconds=0.061994524 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 0.006149421 # HELP probe_duration_seconds Returns how long the probe took to complete in seconds # TYPE probe_duration_seconds gauge probe_duration_seconds 0.061994524 # 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"} 0.005914798 probe_http_duration_seconds{phase="processing"} 0.031221697 probe_http_duration_seconds{phase="resolve"} 0.012592103 probe_http_duration_seconds{phase="tls"} 0.007720403 probe_http_duration_seconds{phase="transfer"} 0.00279768 # 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 137612 # 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 last SSL chain 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 # 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",issuer="CN=WE1,O=Google Trust Services,C=US",subject="CN=prometheus.io",subjectalternative="prometheus.io,*.prometheus.io"} 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 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 timeout: 5s http: valid_http_versions: - HTTP/1.1 - HTTP/2.0 preferred_ip_protocol: ip4 method: GET 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