Logs for the probe: ts=2026-05-28T20:55:25.859449751Z caller=main.go:181 module=http_2xx target=https://vpn.csssr.com level=info msg="Beginning probe" probe=http timeout_seconds=23.5 ts=2026-05-28T20:55:25.859509802Z caller=http.go:328 module=http_2xx target=https://vpn.csssr.com level=info msg="Resolving target address" target=vpn.csssr.com ip_protocol=ip4 ts=2026-05-28T20:55:25.89229083Z caller=http.go:328 module=http_2xx target=https://vpn.csssr.com level=info msg="Resolved target address" target=vpn.csssr.com ip=8.6.112.0 ts=2026-05-28T20:55:25.892334448Z caller=client.go:252 module=http_2xx target=https://vpn.csssr.com level=info msg="Making HTTP request" url=https://8.6.112.0 host=vpn.csssr.com ts=2026-05-28T20:55:26.006879358Z caller=handler.go:120 module=http_2xx target=https://vpn.csssr.com level=info msg="Received HTTP response" status_code=502 ts=2026-05-28T20:55:26.006900911Z caller=handler.go:120 module=http_2xx target=https://vpn.csssr.com level=info msg="Invalid HTTP response status code, wanted 2xx" status_code=502 ts=2026-05-28T20:55:26.006920218Z caller=handler.go:120 module=http_2xx target=https://vpn.csssr.com level=info msg="Response timings for roundtrip" roundtrip=0 start=2026-05-28T20:55:25.892377304Z dnsDone=2026-05-28T20:55:25.892377304Z connectDone=2026-05-28T20:55:25.919881467Z gotConn=2026-05-28T20:55:25.978024419Z responseStart=2026-05-28T20:55:26.006831831Z tlsStart=2026-05-28T20:55:25.91990309Z tlsDone=2026-05-28T20:55:25.977972003Z end=2026-05-28T20:55:26.006915088Z ts=2026-05-28T20:55:26.006973476Z caller=main.go:181 module=http_2xx target=https://vpn.csssr.com level=error msg="Probe failed" duration_seconds=0.147504072 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 0.032788077 # HELP probe_duration_seconds Returns how long the probe took to complete in seconds # TYPE probe_duration_seconds gauge probe_duration_seconds 0.147504072 # 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 155 # 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"} 0.027504164 probe_http_duration_seconds{phase="processing"} 0.028807412 probe_http_duration_seconds{phase="resolve"} 0.032788077 probe_http_duration_seconds{phase="tls"} 0.058068918 probe_http_duration_seconds{phase="transfer"} 8.3257e-05 # 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 502 # HELP probe_http_uncompressed_body_length Length of uncompressed response body # TYPE probe_http_uncompressed_body_length gauge probe_http_uncompressed_body_length 155 # 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 1.946594699e+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 1.786180803e+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 1.786180803e+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="70c25a7463f3913ee5d65907ed152d1f84b9836ade7b2ecfa3f073a7c01ee93c",issuer="CN=WE1,O=Google Trust Services,C=US",subject="CN=csssr.com",subjectalternative="csssr.com,*.csssr.com"} 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 timeout: 30s http: valid_http_versions: - HTTP/1.1 - HTTP/2.0 preferred_ip_protocol: ip4 ip_protocol_fallback: true 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