Changelog

Version 2.2.0

Shipped on July 5, 2026. Questions about this release? Email hello@dnsbuddy.co.

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Feature

CAA checker

Added a dedicated CAA checker for reviewing which Certificate Authorities may issue TLS certificates for a domain.

Feature

DKIM checker

Look up DKIM public key TXT records by domain and selector at selector._domainkey.{domain}.

Feature

DMARC checker

Look up _dmarc TXT records for any domain to verify policy, reporting addresses, and alignment settings.

Feature

DNSSEC checker

Added a DNSSEC checker that looks for DS, DNSKEY, and RRSIG records and summarizes whether chain evidence is present.

Feature

Docs and Knowledge Base replace Learning

Documentation now lives under /docs: step-by-step Help center guides and a searchable Knowledge Base for DNS record references, email authentication, and WHOIS. The old Learning section is retired.

Feature

ESP authentication validator

Validate MX, SPF, and DKIM DNS records against Amazon SES, Resend, SendGrid, Mailgun, Postmark, Mailjet, Klaviyo, Brevo, and Mailchimp setup profiles.

Feature

IP lookup (IP to ASN)

Resolve IPv4 and IPv6 addresses to announcing ASN, organization, country, and route prefix.

Improvement

Made some minor design changes

I have tweaked the look and feel for somethings, and some other stuff around here.

Feature

MX lookup

Dedicated MX record lookup page to see mail server priorities and hostnames from multiple DNS resolvers.