---
title: "Domain & DNS Tools Tools | FirstSales"
description: "Free domain & dns tools tools for sales teams and email marketers. Check DNS records, domain authority, WHOIS, and domain health"
canonical: "https://firstsales.io/tools/category/domain-dns/"
---

100% Free • No Signup

# 🌐 Domain & DNS Tools Tools

Check DNS records, domain authority, WHOIS, and domain health. All tools work instantly without signup.

20 Tools

[Home](/)/[Tools](/tools/)/Domain & DNS Tools

[lookupDNS Record LookupLookup all DNS record types (A, AAAA, CNAME, MX, NS, TXT, SOA) for any domain](/tools/dns-record-lookup/)[checkerDomain Age CheckerCheck how old a domain is and when it was first registered](/tools/domain-age-checker/)[checkerDomain Expiration CheckerCheck when a domain expires and get renewal reminders for your domains](/tools/domain-expiration-checker/)[lookupWHOIS LookupGet WHOIS registration information for any domain including owner, registrar, and contacts](/tools/whois-lookup/)[checkerDomain Availability CheckerCheck if a domain name is available for registration across TLDs](/tools/domain-availability-checker/)[lookupNS Record LookupLookup nameserver (NS) records to identify which DNS servers host a domain](/tools/ns-record-lookup/)[lookupTXT Record LookupLookup TXT records for SPF, DKIM, verification codes, and other text-based DNS entries](/tools/txt-record-lookup/)[lookupCNAME Record LookupLookup CNAME (alias) records to find domain aliases and subdomains](/tools/cname-record-lookup/)[lookupA Record LookupLookup A records to find IPv4 addresses associated with a domain](/tools/a-record-lookup/)[lookupAAAA Record LookupLookup AAAA records to find IPv6 addresses associated with a domain](/tools/aaaa-record-lookup/)[lookupSOA Record LookupLookup SOA (Start of Authority) records for domain admin and zone configuration](/tools/soa-record-lookup/)[checkerDNS Propagation CheckerCheck if DNS changes have propagated across servers worldwide](/tools/dns-propagation-checker/)[checkerDomain Authority CheckerCheck domain authority (DA) score and compare against competitors](/tools/domain-authority-checker/)[checkerSSL Certificate CheckerCheck SSL certificate details, expiration, and validity for any domain](/tools/ssl-certificate-checker/)[lookupSubdomain FinderDiscover all subdomains for a given domain including hidden ones](/tools/subdomain-finder/)[lookupDomain IP HistoryCheck historical IP addresses a domain has pointed to](/tools/domain-ip-history/)[validatorDNSSEC ValidatorValidate DNSSEC implementation for enhanced DNS security](/tools/dnssec-validator/)[lookupReverse IP LookupFind all domains hosted on the same IP address](/tools/reverse-ip-lookup/)[checkerDomain Status Code CheckerCheck HTTP status codes and redirect chains for any domain](/tools/domain-status-code-checker/)[checkerDNS Health CheckerRun comprehensive DNS health audit checking all record types and configuration](/tools/dns-health-checker/)

## Automate Your Domain & DNS Tools

These free tools are great for quick checks. FirstSales automates your entire domain & dns tools workflow with AI-powered personalization.

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## FAQs

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