Logs for the probe: ts=2026-06-17T08:23:24.816818227Z caller=main.go:181 module=https_2xx target=https://dns.jedenpixel.cz/health level=info msg="Beginning probe" probe=http timeout_seconds=5 ts=2026-06-17T08:23:24.817138892Z caller=http.go:328 module=https_2xx target=https://dns.jedenpixel.cz/health level=info msg="Resolving target address" target=dns.jedenpixel.cz ip_protocol=ip4 ts=2026-06-17T08:23:24.83587534Z caller=http.go:328 module=https_2xx target=https://dns.jedenpixel.cz/health level=info msg="Resolved target address" target=dns.jedenpixel.cz ip=193.165.234.62 ts=2026-06-17T08:23:24.836102173Z caller=client.go:259 module=https_2xx target=https://dns.jedenpixel.cz/health level=info msg="Making HTTP request" url=https://193.165.234.62/health host=dns.jedenpixel.cz ts=2026-06-17T08:23:24.8885679Z caller=handler.go:120 module=https_2xx target=https://dns.jedenpixel.cz/health level=info msg="Received HTTP response" status_code=200 ts=2026-06-17T08:23:24.891806975Z caller=handler.go:120 module=https_2xx target=https://dns.jedenpixel.cz/health level=error msg="Invalid HTTP version number" version=HTTP/2.0 ts=2026-06-17T08:23:24.891850766Z caller=handler.go:120 module=https_2xx target=https://dns.jedenpixel.cz/health level=info msg="Response timings for roundtrip" roundtrip=0 start=2026-06-17T08:23:24.836296047Z dnsDone=2026-06-17T08:23:24.836296047Z connectDone=2026-06-17T08:23:24.86557259Z gotConn=2026-06-17T08:23:24.882044877Z responseStart=2026-06-17T08:23:24.888427567Z tlsStart=2026-06-17T08:23:24.865738339Z tlsDone=2026-06-17T08:23:24.881827003Z end=2026-06-17T08:23:24.891782683Z ts=2026-06-17T08:23:24.892031641Z caller=main.go:181 module=https_2xx target=https://dns.jedenpixel.cz/health level=error msg="Probe failed" duration_seconds=0.075114206 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 0.018755239 # HELP probe_duration_seconds Returns how long the probe took to complete in seconds # TYPE probe_duration_seconds gauge probe_duration_seconds 0.075114206 # 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"} 0.029276626 probe_http_duration_seconds{phase="processing"} 0.006382773 probe_http_duration_seconds{phase="resolve"} 0.018755239 probe_http_duration_seconds{phase="tls"} 0.016088621 probe_http_duration_seconds{phase="transfer"} 0.003355033 # 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 200 # HELP probe_http_uncompressed_body_length Length of uncompressed response body # TYPE probe_http_uncompressed_body_length gauge probe_http_uncompressed_body_length 27456 # 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 1.68876215e+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 1.788307378e+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 1.788307378e+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="9861b27e9ef9b59c34a9f588cfb320a2c630eb6908bbe980ea1ce45ac4f58831",issuer="CN=YE2,O=Let's Encrypt,C=US",subject="CN=dns.jedenpixel.cz",subjectalternative="dns.jedenpixel.cz"} 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: 5s http: valid_status_codes: - 200 - 301 - 302 valid_http_versions: - HTTP/1.1 - HTTP/2 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