# Install ssl-checker with npm

Zero-dependency SSL/TLS certificate checker for Node.js — HTTPS, SMTP, IMAP, POP3, FTP via STARTTLS. Version 3.0.1 via npm; verified 2026-04-23.

## Install

```sh
sudo av install npm:ssl-checker
```

Additional install commands:

### Portable and language managers

- npm (100%):

```sh
npm install -g ssl-checker
```

  Evidence: local npm package metadata

## Package facts

- **Package key:** npm:ssl-checker
- **Package manager:** npm
- **Package manager page:** <https://www.npmjs.com/package/ssl-checker>
- **Version:** 3.0.1
- **Source summary:** Zero-dependency SSL/TLS certificate checker for Node.js — HTTPS, SMTP, IMAP, POP3, FTP via STARTTLS
- **Homepage:** <https://github.com/dyaa/ssl-checker#readme>
- **Repository:** <https://github.com/dyaa/ssl-checker>
- **Upstream docs:** <https://github.com/dyaa/ssl-checker#readme>
- **License:** MIT
- **Source archive:** <https://registry.npmjs.org/ssl-checker/-/ssl-checker-3.0.1.tgz>
- **Issue tracker:** <https://github.com/dyaa/ssl-checker/issues>
- **Published:** 2026-04-23T20:41:16.489Z
- **Last updated:** 2026-04-23T20:41:16.489Z
- **Generated:** 2026-08-04T22:13:35+00:00

## Executables

- ssl-checker (cli)
- ssl-checker (alias)

## Build dependencies

- @rollup/plugin-typescript
- @types/node
- @vitest/coverage-istanbul
- prettier
- rollup
- tslib
- typescript
- vitest

## Install behavior

- Post-install hook: not defined
- Lifecycle scripts: prepare
- Bottle: not available

## Freshness

- Page generated: 2026-08-04
- Package-manager version: 3.0.1
- Package-manager updated: 2026-04-23
- Local data: ok
- Upstream repository: https://github.com/dyaa/ssl-checker
- info: No cached GitHub release or tag data was available.

## Security Notes

No matching local secret-handling manifest was found for ssl-checker. Package metadata is still published here so future coverage has a stable package URL.


## Source Database Details

- **Source Database:** npm registry
- **Dist Tags:** Latest: 3.0.1, Next: 3.0.0-rc
- **Version Count:** 21
- **Maintainers:** dyaa
- **Author:** Dyaa Eldin
- **Publisher:** dyaa
- **Engines:** Node: >=20
- **Integrity:** sha512-Hy91BXQFwQWXsjSOvGRjPUBf6EjEzOjUQL0AWEEb1NarwdePZ9YgZghOGemc1TWdeebDckh4eo/9jT08CAokIg==
- **Shasum:** fbffcfcbd98c62a0eb585111de60f9a5658bb052
- **Unpacked Size:** 56,305
- **File Count:** 0
- **Created At:** 2017-05-18T23:13:40.561Z
- **Latest Published At:** 2026-04-23T20:41:16.489Z
- **Modified At:** 2026-04-23T20:41:16.592Z


## Related links

- [Security and crypto packages](https://pkg.so/security-crypto-tools/) - Matched curated package taxonomy and local package facts.
- [mkcert](https://pkg.so/npm/mkcert/) - Both packages touch the same language runtime or ecosystem. Shared terms: certificate, certificates, cli, node, security.
- [owasp-dependency-check](https://pkg.so/npm/owasp-dependency-check/) - Both packages touch the same language runtime or ecosystem. Shared terms: cli, dependency, javascript, node, node-js.
- [certstrap](https://pkg.so/brew/certstrap/) - Security-sensitive metadata or terminology overlaps. Shared terms: certificate, certificates, cli, security, tls.

## Sources

- pkg.so package database
- package-page enrichment
- package version freshness
- pkgdb category and tag curation
- package relationship graph
- cross-ecosystem install command graph