Logs for the probe: time=2026-06-05T18:51:18.802Z level=INFO source=handler.go:122 msg="Beginning probe" module=http_2xx target=prometheus.io probe=http timeout_seconds=5 time=2026-06-05T18:51:18.802Z level=INFO source=utils.go:61 msg="Resolving target address" module=http_2xx target=prometheus.io target=prometheus.io ip_protocol=ip4 time=2026-06-05T18:51:18.807Z level=INFO source=utils.go:96 msg="Resolved target address" module=http_2xx target=prometheus.io target=prometheus.io ip=104.21.60.220 time=2026-06-05T18:51:18.807Z level=INFO source=http.go:153 msg="Making HTTP request" module=http_2xx target=prometheus.io url=http://104.21.60.220 host=prometheus.io time=2026-06-05T18:51:18.813Z level=INFO source=http.go:381 msg="Received redirect" module=http_2xx target=prometheus.io location=https://prometheus.io/ time=2026-06-05T18:51:18.813Z level=INFO source=http.go:153 msg="Making HTTP request" module=http_2xx target=prometheus.io url=https://prometheus.io/ host="" time=2026-06-05T18:51:18.813Z level=INFO source=http.go:169 msg="Address does not match first address, not sending TLS ServerName" module=http_2xx target=prometheus.io first=104.21.60.220 address=prometheus.io time=2026-06-05T18:51:18.848Z level=INFO source=http.go:479 msg="Received HTTP response" module=http_2xx target=prometheus.io status_code=200 time=2026-06-05T18:51:18.850Z level=INFO source=http.go:601 msg="Response timings for roundtrip" module=http_2xx target=prometheus.io roundtrip=0 start=2026-06-05T18:51:18.807Z dnsDone=2026-06-05T18:51:18.807Z connectDone=2026-06-05T18:51:18.808Z gotConn=2026-06-05T18:51:18.808Z responseStart=2026-06-05T18:51:18.813Z tlsStart=0001-01-01T00:00:00.000Z tlsDone=0001-01-01T00:00:00.000Z end=0001-01-01T00:00:00.000Z time=2026-06-05T18:51:18.850Z level=INFO source=http.go:601 msg="Response timings for roundtrip" module=http_2xx target=prometheus.io roundtrip=1 start=2026-06-05T18:51:18.814Z dnsDone=2026-06-05T18:51:18.820Z connectDone=2026-06-05T18:51:18.821Z gotConn=2026-06-05T18:51:18.827Z responseStart=2026-06-05T18:51:18.848Z tlsStart=2026-06-05T18:51:18.821Z tlsDone=2026-06-05T18:51:18.827Z end=2026-06-05T18:51:18.850Z time=2026-06-05T18:51:18.850Z level=INFO source=handler.go:133 msg="Probe succeeded" module=http_2xx target=prometheus.io duration_seconds=0.048420401 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 0.004683699 # HELP probe_duration_seconds Returns how long the probe took to complete in seconds # TYPE probe_duration_seconds gauge probe_duration_seconds 0.048420401 # 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"} 0.002346286 probe_http_duration_seconds{phase="processing"} 0.02529367 probe_http_duration_seconds{phase="resolve"} 0.010953253999999999 probe_http_duration_seconds{phase="tls"} 0.005810693 probe_http_duration_seconds{phase="transfer"} 0.002025743 # 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 135288 # 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 1.788276206e+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 1.788276206e+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="d2caaca773a055191fb8d5595ad01da82e5c47bbb3bcff2d7f4e79926c074661",issuer="CN=WE1,O=Google Trust Services,C=US",serialnumber="63788b9e6a0ff5530e8318026202de65",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_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 timeout: 5s http: valid_http_versions: - HTTP/1.1 - HTTP/2.0 preferred_ip_protocol: ip4 ip_protocol_fallback: true 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