X509-certificate-exporter
Prometheus exporter for TLS cert expiration
Details
- External ID
- 48109657
- Source
- HN
- Company
- —
- Product
- X509-certificate-exporter
- Website domain
- github.com
- Launched
- May 12, 2026
- Cohort
- —
- Upvotes
- 8
- Upvotes percentile
- 0.4894991922455573
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
Certificates expire silently. Kubernetes won't warn you, and most teams find out when something breaks. This exporter watches PEM files, kubeconfigs, Kubernetes TLS secrets, and PKCS#12 bundles, and exposes expiration as Prometheus metrics you can alert on. It works standalone too, no Kubernetes required. A Grafana dashboard is included. The new release is a major rewrite, built from experience running this across a large number of production clusters. The main pain point it addresses: at scale, with thousands of certificates, the exporter was putting too much pressure on the Kubernetes API. We also put a lot of care into supply chain security this time around.
Enrichment
- Theme
- developer infrastructure and monitoring utilities
- Vertical
- —
- Function
- Observability & eval
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- prometheus exporter for tls certificate expiration monitoring
- Manually corrected
- False
Could you build this?
Yes It is a straightforward Prometheus exporter written in Go or Python that parses local X.509/PKCS#12 certificates or Kubernetes secret objects using standard crypto libraries and exposes expiration timestamps via an HTTP metric endpoint.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 38 launches clear the similarity bar, closest 8 shown.
Attention rank: #16 of 39 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 143 days after the earliest competitor.
- CertAvert · ph · 2026-09-29 · 1 upvotes · similarity 0.57
- Govigie · ph · 2026-09-10 · 1 upvotes · similarity 0.54
- Xportify · ph · 2026-09-25 · 1 upvotes · similarity 0.46
- CertKit for automating SSL certs to Windows, JKS, and appliances · hn · 2026-04-08 · 7 upvotes · similarity 0.45
- TLS Certificate Management and PKI · hn · 2026-05-22 · 10 upvotes · similarity 0.44
- SSL Certificate Checker · ph · 2026-09-24 · 2 upvotes · similarity 0.43
- CredPulse · ph · 2026-09-14 · 1 upvotes · similarity 0.42
- I rewrote my 2012 self-signed cert generator in Go · hn · 2026-04-02 · 9 upvotes · similarity 0.41
Other launches for this product
- No other launches for this product.