A2Z Tools for VS Code

Check a domain without leaving your editor. Open the Command Palette, type A2Z Tools, and the result opens as formatted JSON in a new tab.

Commands

Command	What it shows
A2Z Tools: DNS Records	A, AAAA, MX, TXT and other records
A2Z Tools: DNS Propagation	The answer from several resolvers
A2Z Tools: SSL Certificate	Issuer, expiry date and TLS protocol
A2Z Tools: HTTP Security Headers	Security headers on a website
A2Z Tools: HTTP Headers	Response headers and redirects
A2Z Tools: SPF Record	The domain's SPF record
A2Z Tools: DMARC Record	The DMARC policy and warnings
A2Z Tools: Domain WHOIS	Registration details

Select a domain, URL or email address in the editor first and it is filled in for you.

Limits

It works without an account: 10 requests a minute and 100 a day per IP address. A free key from the A2Z Tools developer page gives 60 a minute and 2,000 a day. Add it with A2Z Tools: Set API Key; it is kept in VS Code secret storage.

Privacy

The domain or URL you check is sent to a2z.tools to run the lookup. File contents are never sent, and the extension does nothing until you run a command.

Links

Made by A2Z Tools, a product of Reliable Software Technology.

A2Z Tools: DNS, SSL and Email Checks

A2Z Tools

A2Z Tools for VS Code

Commands

Limits

Privacy

Links