Kafka consumer diagnostics · 7 min
Diagnose Kafka consumer lag
Compare committed offsets with partition ends, inspect group members and assignments, and examine the records around a stuck position before changing offsets.
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TLS certificates and service diagnostics · 9 min
Check a TLS certificate chain on any port
Inspect the certificate chain a live HTTPS, Kafka SSL, LDAPS, SMTPS, IMAPS, or raw TLS service presents; diagnose expiry, SAN mismatch, SNI, trust, and missing intermediates.
DNS and network diagnostics · 8 min
Compare public, system, VPN, and reverse DNS
Check A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, CAA, and PTR records; understand split-horizon DNS and forward-confirm a reverse DNS hostname.
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