https://dns-lookup.whoisxmlapi.com/
DNS records lookup products for MX, NS, SPF, etc. record | WhoisXML API
Check the NS, MX, SPF, A, SOA, TXT, etc. records / DNS server info of a domain name with our API, lookup tool, and database covering 2B hostnames.
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https://mxtoolbox.com/
MX Lookup Tool - Check your DNS MX Records online - MxToolbox
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https://dnsdumpster.com/
DNSDumpster - Find & lookup dns records for recon & research
Nov 18, 2024 - Free domain research tool to discover hosts related to a domain. Find visible hosts from the attackers perspective for Red and Blue Teams.
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https://dns-lookup.com/
DNS Lookup - Find DNS Records for Any Domain
Free DNS lookup tool. Query A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, and SRV records from Cloudflare, Google, and other DNS servers.
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https://dns-lookup.co.uk/
DNS Lookup Tool | Check DNS Records, Servers, SPF & DMARC
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https://uptimerobot.com/free-tools/reverse-ip-lookup/
Reverse IP Lookup Tool – Check Reverse DNS Records | UptimeRobot
Free reverse IP lookup for any IP address. Find PTR (reverse DNS) records, view TTL, and troubleshoot email trust and DNS configuration fast.
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https://uptimerobot.com/free-tools/srv-record-lookup/
SRV Record Lookup Tool – Check Service (SRV) DNS Records | UptimeRobot
Free SRV record lookup for any domain. View priority, weight, port, and target values with TTL to troubleshoot service routing and DNS changes fast.
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https://dnsissue.com/
DNS Lookup Tool – Verify Domain Records | dnsissue.com
Instant DNS lookup for any domain. Check A, AAAA, CNAME, NS, MX, SOA, TXT, SPF, DKIM, DMARC, and CAA records free — no signup required.
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https://api.mxtoolbox.com/
MX Lookup Tool - Check your DNS MX Records online - MxToolbox
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