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CheckTLS

Tests whether an email server supports TLS encryption and valid certificates.

Artifact by CheckTLS

IndexedLicense unknownSecurity & privacyNo sign-up

Use it

Opens checktls.com in a new tab. Nothing to install.

You provide
Email address or mail server
You get
TLS compatibility report
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
Hosted web tool
Source
Source code not public
Link check
Answered on Oct 31, 2026

About

CheckTLS is a hosted web tool in the security privacy category (email tls test). It opens in your browser, so there is nothing to install. You provide email address or mail server and get TLS compatibility report. It needs no account. It is a plain tool: no AI model is involved.

Category: Security & privacy · email tls test

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Details

Auth
No auth
License
License unknown
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Cite this page

CheckTLS: free online tool. Agent Mart. https://agentmart.dev/artifacts/checktls (last updated 2026-10-31)