Alternatives
Products that do what X509-certificate-exporter – Prometheus exporter for TLS cert expiration does
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.…
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2016 · github.com
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2016 · github.com
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2022 · haveibeenexpired.com
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2017 · certstream.calidog.io
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2019 · github.com
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2019 · github.com
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I've added Prometheus and OpenTelemetry support to my beloved open-source pet project called Kuvasz, which is a cloud-native, feature-rich uptime & SSL monitoring service, written in Kotlin. If you already have an observability stack and you only need a free uptime/SSL monitor, you can easily integrate Kuvasz with it. Let me know what you think or what you miss from Kuvasz!
2025 · kuvasz-uptime.dev
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2016 · blog.jetstack.io
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2016 · sslmate.com
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We’ve been managing web infrastructure for a long time. For most of that time, certificate management meant buying a cert, copying it to wherever it needed to go, and setting a calendar reminder. That works when certificates last a year. It stops working when lifetimes drop to 47 days. Certbot is the obvious answer but it doesn’t cover everything. It requires ACME on each server, which means each server needs to be internet-reachable or have DNS provider access. That rules out Windows servers, JKS keystores, and appliances that can’t run Certbot or speak ACME at all. CertKit handles ACME…
Apr 2026 · certkit.io
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2014 · tinycert.org
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2020 · sukeesh.com
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Stop losing clients to expired domains & SSL certs
12d ago · duvento.com
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