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---
name: "Lint X.509 certificates against Web PKI rules with zlint before issuance or rollout"
slug: "lint-x509-certificates-against-web-pki-rules-with-zlint-before-issuance-or-rollout"
description: "Check certificates and precertificates for Web PKI standards violations before CA issuance, trust-store submission, or deployment."
github_stars: 429
verification: "security_reviewed"
source: "https://github.com/zmap/zlint"
author: "zmap"
publisher_type: "open_source_project"
category: "Security & Verification"
framework: "Multi-Framework"
tool_ecosystem:
github_repo: "zmap/zlint"
github_stars: 429
---
# Lint X.509 certificates against Web PKI rules with zlint before issuance or rollout
Check certificates and precertificates for Web PKI standards violations before CA issuance, trust-store submission, or deployment.
## Prerequisites
PEM or DER certificate or precertificate input, zlint CLI or Go library, operator able to interpret lint findings
## Installation
Requirements and caveats from upstream:
- ZLint requires [Go 1.16.x or newer](https://golang.org/doc/install) be
Basic usage or getting-started notes:
- ------------
- installed. The command line setup instructions assume the go command is in
- your $PATH.
- Source: https://github.com/zmap/zlint
- Extracted from upstream docs: https://raw.githubusercontent.com/zmap/zlint/HEAD/README.md
## Documentation
- https://zmap.io
## Source
- [Agent Skill Exchange](https://agentskillexchange.com/skills/lint-x509-certificates-against-web-pki-rules-with-zlint-before-issuance-or-rollout/)
