Logs for the probe: ts=2026-04-12T15:07:51.898224853Z caller=main.go:181 module=http_2xx target=https://77.88.8.1 level=info msg="Beginning probe" probe=http timeout_seconds=79.5 ts=2026-04-12T15:07:51.898472735Z caller=http.go:328 module=http_2xx target=https://77.88.8.1 level=info msg="Resolving target address" target=77.88.8.1 ip_protocol=ip4 ts=2026-04-12T15:07:51.898510762Z caller=http.go:328 module=http_2xx target=https://77.88.8.1 level=info msg="Resolved target address" target=77.88.8.1 ip=77.88.8.1 ts=2026-04-12T15:07:51.89862575Z caller=client.go:252 module=http_2xx target=https://77.88.8.1 level=info msg="Making HTTP request" url=https://77.88.8.1 host=77.88.8.1 ts=2026-04-12T15:07:52.101149701Z caller=handler.go:120 module=http_2xx target=https://77.88.8.1 level=info msg="Received HTTP response" status_code=404 ts=2026-04-12T15:07:52.101240766Z caller=handler.go:120 module=http_2xx target=https://77.88.8.1 level=info msg="Invalid HTTP response status code, wanted 2xx" status_code=404 ts=2026-04-12T15:07:52.101465758Z caller=handler.go:120 module=http_2xx target=https://77.88.8.1 level=info msg="Response timings for roundtrip" roundtrip=0 start=2026-04-12T20:07:51.898800872+05:00 dnsDone=2026-04-12T20:07:51.898800872+05:00 connectDone=2026-04-12T20:07:51.96318589+05:00 gotConn=2026-04-12T20:07:52.033920403+05:00 responseStart=2026-04-12T20:07:52.100890499+05:00 tlsStart=2026-04-12T20:07:51.963233309+05:00 tlsDone=2026-04-12T20:07:52.033733417+05:00 end=2026-04-12T20:07:52.10142727+05:00 ts=2026-04-12T15:07:52.101752452Z caller=main.go:181 module=http_2xx target=https://77.88.8.1 level=error msg="Probe failed" duration_seconds=0.203470448 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 2.949e-05 # HELP probe_duration_seconds Returns how long the probe took to complete in seconds # TYPE probe_duration_seconds gauge probe_duration_seconds 0.203470448 # 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"} 0.064385066 probe_http_duration_seconds{phase="processing"} 0.066970112 probe_http_duration_seconds{phase="resolve"} 2.949e-05 probe_http_duration_seconds{phase="tls"} 0.070500179 probe_http_duration_seconds{phase="transfer"} 0.00053674 # HELP probe_http_redirects The number of redirects # TYPE probe_http_redirects gauge probe_http_redirects 0 # 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 404 # HELP probe_http_uncompressed_body_length Length of uncompressed response body # TYPE probe_http_uncompressed_body_length gauge probe_http_uncompressed_body_length 9 # 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 9.08773019e+08 # 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 1.791278161e+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 -6.21355968e+10 # 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="4233d5330d0d765f4128e188b12570d5ea19b9f000654548de771d603155049e",issuer="CN=GlobalSign RSA OV SSL CA 2018,O=GlobalSign nv-sa,C=BE",subject="CN=77.88.8.1,O=YANDEX LLC,L=Moscow,ST=Moscow,C=RU",subjectalternative="*.dot.dns.yandex.net"} 1 # HELP probe_success Displays whether or not the probe was a success # TYPE probe_success gauge probe_success 0 # 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 tls_config: insecure_skip_verify: 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