DMARC Checker - Hostnox Global DNS Checker

{"name":"Hostnox Global DNS Checker - Propagation Status","ads":{"one":"","two":"","three":"","four":"","five":"","six":""},"socials":[],"colors":{"primary":"#0155b5","secondary":"#2fc10a","tertiary":"#d2ab3e"},"global":{"css":"@media (min-width: 1200px) {\n .container, .container-lg, .container-md, .container-sm, .container-xl {\n max-width: 1450px;\n }\n}\n\n\n .dns-hero { padding: 1.25rem 0; }\n .lead { font-size: 1.1rem; opacity: .9; }\n .dns-section { margin: 2rem 0; }\n .dns-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: .75rem; }\n .tip { background: #f7f7f9; border-left: 3px solid #6c63ff; padding: .75rem; border-radius: .25rem; }\n details { margin: .5rem 0; }\n .muted { opacity: .8; }\n .dns-footer { margin-top: 2rem; opacity: .8; }","js":"\n\n<script type=\"application\/ld+json\">\n{\n \"@context\":\"https:\/\/schema.org\",\n \"@type\":\"FAQPage\",\n \"mainEntity\":[\n {\n \"@type\":\"Question\",\n \"name\":\"How long does DNS propagation take?\",\n \"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Typically minutes to a few hours. High TTLs, ISP caches, and NS changes can extend this. Use the checker to verify region by region.\"}\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Why do different resolvers show different answers?\",\n \"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cached records, geo-DNS, and anycast can yield different results per resolver and region. Multi-resolver views reveal these differences.\"}\n },\n {\n \"@type\":\"Question\",\n \"name\":\"Do I need DNSSEC?\",\n \"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"DNSSEC adds cryptographic validation to DNS. If your registry and DNS host support it, enabling DNSSEC is recommended for integrity.\"}\n }\n ]\n}\n<\/script>","header":"","footer":""},"cookie":{"enable":true,"text":"By using this website you agree to our <a href=\"#\" target=\"_blank\">Cookie Policy<\/a><\/p>"},"font_family":"Poppins","text":{"above_map":"If you're having trouble checking your DNS status, simply enter your domain into the Hostnox DNS Checker tool to view global propagation.<\/p>","below_map":"Instantly verify DNS records and see how they resolve worldwide. Diagnose issues with A\/AAAA, MX, CNAME, TXT, NS, SRV, SPF, DKIM, DMARC, and DNSSEC.<\/p> <\/p>What is a DNS Checker?<\/strong><\/p>A DNS checker queries authoritative and recursive resolvers worldwide to confirm that your Domain name records are configured correctly and have propagated. It\u2019s essential when launching a site, switching providers, changing email platforms, or tightening security.<\/p> <\/p>What You Can Do Here<\/strong><\/p>\u2022 Verify records: Confirm A\/AAAA, CNAME, MX, TXT, NS, SRV and more.<\/p>\u2022 Check propagation: See when new DNS changes reach resolvers across the globe.<\/p>\u2022 Fix downtime: Spot missing or misconfigured records causing site or API failures.<\/p>\u2022 Harden email: Inspect SPF, DKIM and DMARC to improve deliverability and prevent spoofing.<\/p>\u2022 Validate security: Verify DNSSEC signing and detect unsafe changes quickly.<\/p>\u2022 Optimize performance: Ensure records point to the right IPs\/CDN PoPs to reduce latency.<\/p> <\/p>Common DNS Records Explained<\/strong><\/p>\u2022 A \u2014 IPv4 address<\/p>\u2022 AAAA \u2014 IPv6 address<\/p>\u2022 CNAME \u2014 Alias to another host<\/p>\u2022 MX \u2014 Mail exchangers for email<\/p>\u2022 TXT \u2014 Free-text (SPF, verifications)<\/p>\u2022 NS \u2014 Authoritative nameservers<\/p>\u2022 SRV \u2014 Service location (e.g., SIP, LDAP)<\/p>\u2022 CAA \u2014 Which CAs can issue certificates<\/p>\u2022 DNSSEC \u2014 Cryptographic validation of DNS<\/p> <\/p>How to Use the DNS Checker<\/strong><\/p><ol><li>Enter a Domain name (e.g., example.com).<\/li><li>Select a record type (A, AAAA, MX, etc.).<\/li><li>Run the check to query multiple global resolvers.<\/li><li>Compare results to verify correctness and propagation.<\/li><\/ol> <\/p>Troubleshooting Playbook<\/strong><\/p>\u2022 Website not resolving? Confirm A\/AAAA points to the correct server and that NS records are delegated properly.<\/p>\u2022 Email bouncing? Check MX targets, SPF syntax, and that DKIM\/DMARC TXT records are present and valid.<\/p>\u2022 SSL issues? Add\/verify CAA records and confirm your certificate matches the hostnames.<\/p>\u2022 Slow region? Ensure DNS answers route to the closest PoP\/CDN or correct origin IP for that region.<\/p> <\/p>Email Authentication Checks<\/strong><\/p>\u2022 SPF: One valid SPF record per domain; avoid multiple SPF TXT records.<\/p>\u2022 DKIM: Publish DKIM selector TXT at: selector._domainkey.example.com<\/p>\u2022 DMARC: Add _dmarc.example.com with policy (p=none | quarantine | reject) and reporting addresses.<\/p> <\/p>FAQ<\/strong><\/p>Q: How long does DNS propagation take?<\/p>A: Typically minutes to a few hours. High TTLs, ISP caches, and nameserver changes can extend this. Use the checker to verify region by region.<\/p> <\/p>Q: Why do different resolvers show different answers?<\/p>A: Cached records, geo-DNS, and anycast can yield different results per resolver and region. That\u2019s why multi-resolver views are valuable.<\/p> <\/p>Q: Do I need DNSSEC?<\/p>A: DNSSEC helps prevent tampering by validating DNS responses. If your registry\/host supports it, enabling DNSSEC is recommended.<\/p> <\/p>Ready to check your DNS? Run a lookup now or keep this page handy when you roll out changes.<\/p>Built by Hostnox for developers, sysadmins, and teams that need reliable visibility.<\/p>","footer":"Copyright 2025 - Hostnox DNS Checker<\/p>"},"find_btn":{"text":"Find","color":"#F3DF00","text_color":"#000000"},"whois_btn":{"text":"Lookup","color":"#5CC9FF","text_color":"#000000"},"ip_btn":{"text":"Lookup","color":"#5CC9FF","text_color":"#000000"},"blacklist_btn":{"text":"Check","color":"#5CC9FF","text_color":"#000000"},"dmarc_btn":{"text":"Check","color":"#5CC9FF","text_color":"#000000"},"default_dns":"A","enable_logs":true,"show_dark_mode":true,"enable_ad_block_detector":false,"ad_block_detector_filename":"adcount.js","map_fail_reloader":false,"timeout":5,"blacklist":{"servers":["sbl.spamhaus.org","all.s5h.net","b.barracudacentral.org","spam.spamrats.com","zen.spamhaus.org","dnsbl.dronebl.org","spam.rbl.blockedservers.com","rbl.interserver.net","spamsources.fabel.dk","bl.scientificspam.net","dnsbl.zapbl.net","bl.rbl.scrolloutf1.com","dnsbl.kempt.net","mail-abuse.com","exploit.mail.abusix.zone","new.spam.dnsbl.sorbs.net","block.dnsbl.sorbs.net","bl.spamcop.net","black.mail.abusix.zone","multi.surbl.org","escalations.dnsbl.sorbs.net","zombie.dnsbl.sorbs.net","dnsbl.tornevall.org","bl.nordspam.com","fnrbl.fast.net","talosintelligence.com","truncate.gbudb.net","0spam.fusionzero.com","bl.nosolicitado.org","dyna.spamrats.com","xbl.spamhaus.org","dbl.spamhaus.org","cbl.abuseat.org","noptr.spamrats.com","dnsbl.invaluement.com","ubl.unsubscore.com","psbl.surriel.com","multirbl.valli.org","dnsbl-1.uceprotect.net","dnsbl-2.uceprotect.net","dnsbl-3.uceprotect.net","sorbs.net","dnsbl.sorbs.net"]}}