SPF Checker

The SPF Checker Tool is a valuable utility for verifying the Sender Policy Framework (SPF) records of a domain. SPF is an email authentication protocol that helps prevent email spoofing by specifying which mail servers are authorized to send emails on behalf of a domain. This tool allows users to quickly check whether their domain's SPF record is correctly configured and identifies potential issues such as syntax errors or missing mechanisms. By ensuring proper SPF setup, users can improve email deliverability and protect their domain reputation. It's an essential tool for administrators aiming to maintain secure and trustworthy email communication.

Welcome to DNSRiver – The Global Domain & DNS Intelligence Platform


At DNSRiver.com, we make it simple for anyone to monitor, manage, and optimize domains, DNS records, IP addresses, and email configurations worldwide. Whether you are a website owner, IT professional, or digital marketer, our platform delivers fast, reliable, and real-time insights, helping you stay ahead of technical issues and ensure your website is accessible globally.


Track DNS Propagation Across the World


Our interactive DNS propagation map shows exactly where your domain updates have reached. Instantly visualize changes across hundreds of DNS servers worldwide, identify delays, and ensure your website is fully accessible for users in every region.

  • Check DNS propagation in real time
  • Detect nameserver changes and propagation delays instantly
  • Ensure your website is live globally without downtime
DNSRiver transforms complex DNS data into simple, actionable insights.


Deep Domain Insights with WHOIS Lookup


Need to verify domain ownership or research a domain’s history? Our WHOIS Lookup tool provides:

  • Full domain registration details: owner, registrar, and expiration date
  • Secure access to public domain data
  • Quick verification before buying, selling, or transferring domains
Stay informed and make confident domain-related decisions.


IP Lookup and Network Analytics


Identify server locations, trace website traffic, and monitor network health with our IP Lookup tool.

  • Geolocation of IP addresses worldwide
  • ISP and network information at your fingertips
  • Essential for troubleshooting, security, and analytics
Gain the visibility you need to optimize your online presence.


Email Security & Deliverability Tools


Protect your domain and ensure emails reach the inbox with our email tools:

  • Blacklist Check – Identify and resolve domain or IP blacklisting issues
  • DMARC & SPF Checkers – Prevent email spoofing and phishing
  • Email Header Analyzer – Trace messages and troubleshoot delivery issues
DNSRiver helps you safeguard your communication infrastructure effortlessly.


Why DNSRiver Stands Out


  • Real-Time Accuracy: Tools update instantly to deliver precise results
  • Privacy-First Approach: Minimal data storage and maximum confidentiality
  • User-Friendly Design: Intuitive interface for beginners and professionals alike
  • Completely Free: No subscriptions, hidden fees, or limitations
  • Comprehensive Coverage: From DNS maps to IP lookup, WHOIS, and email security


Your Global DNS & Domain Companion


DNSRiver is not just a collection of tools—it’s a central hub for domain intelligence. Whether you are:

  • Monitoring DNS propagation to prevent downtime
  • Verifying domains and ownership instantly
  • Analyzing IP addresses and server locations
  • Securing emails and improving deliverability

DNSRiver delivers actionable insights with speed, clarity, and reliability.

Empower your website, secure your email, and manage your domains with confidence—all in one place.

This version:

  • Improves readability with headings and subheadings
  • Highlights key features with bullet points for quick scanning
  • Keeps SEO keywords naturally: DNS propagation, WHOIS lookup, IP lookup, email security, domain intelligence
  • Has a professional, authoritative, and engaging tone

If you want, I can also turn this into an HTML/CSS block with modern design, icons, and colored sections for your website, so it looks visually appealing below your DNS map.

Do you want me to do that?

[]
{"name":"DNS River | Global DNS Propagation Checker","ads":{"one":"","two":"","three":"","four":"","five":"","six":""},"socials":[],"colors":{"primary":"#0000ff","secondary":"#2fc10a","tertiary":"#d2ab3e"},"global":{"css":"","js":"","header":"","footer":"<!-- Enhanced Footer Start -->\n<footer>\n <div class=\"footer-container\">\n \n <div class=\"footer-column\">\n <h3><i class=\"fas fa-globe\"><\/i> DNSRiver<\/h3>\n <p>Fast and reliable DNS, WHOIS, IP lookup, and email tools to help you manage domains and servers globally.<\/p>\n <\/div>\n \n <div class=\"footer-column\">\n <h3><i class=\"fas fa-tools\"><\/i> Tools<\/h3>\n <ul>\n <li><i class=\"fas fa-database\"><\/i> <a href=\"\/\">DNS Propagation Checker<\/a><\/li>\n <li><i class=\"fas fa-search\"><\/i> <a href=\"\/whois\">WHOIS Lookup<\/a><\/li>\n <li><i class=\"fas fa-network-wired\"><\/i> <a href=\"\/ip\">IP Lookup<\/a><\/li>\n <li><i class=\"fas fa-ban\"><\/i> <a href=\"\/blacklist\">Blacklist Check<\/a><\/li>\n <li><i class=\"fas fa-shield-alt\"><\/i> <a href=\"\/dmarc\">DMARC Check<\/a><\/li>\n <li><i class=\"fas fa-envelope\"><\/i> <a href=\"\/email-headers\">Email Headers<\/a><\/li>\n <li><i class=\"fas fa-check-circle\"><\/i> <a href=\"\/spf-checker\">SPF Checker<\/a><\/li>\n <\/ul>\n <\/div>\n \n <div class=\"footer-column\">\n <h3><i class=\"fas fa-gavel\"><\/i> Legal<\/h3>\n <ul>\n <li><i class=\"fas fa-user-secret\"><\/i> <a href=\"\/privacy-policy\">Privacy Policy<\/a><\/li>\n <li><i class=\"fas fa-file-contract\"><\/i> <a href=\"\/terms-and-conditions\">Terms & Conditions<\/a><\/li>\n <li><i class=\"fas fa-exclamation-triangle\"><\/i> <a href=\"\/disclaimer\">Disclaimer<\/a><\/li>\n <li><i class=\"fas fa-cookie-bite\"><\/i> <a href=\"\/cookie-policy\">Cookie Policy<\/a><\/li>\n <li><i class=\"fas fa-balance-scale\"><\/i> <a href=\"\/dmca\">DMCA \/ Copyright Policy<\/a><\/li>\n <\/ul>\n <\/div>\n \n <div class=\"footer-column\">\n <h3><i class=\"fas fa-info-circle\"><\/i> About & Support<\/h3>\n <ul>\n <li><i class=\"fas fa-users\"><\/i> <a href=\"\/about-us\">About Us<\/a><\/li>\n <li><i class=\"fas fa-envelope-open-text\"><\/i> <a href=\"\/contact-us\">Contact Us<\/a><\/li>\n <li><i class=\"fas fa-question-circle\"><\/i> <a href=\"\/faq\">FAQ<\/a><\/li>\n <li><i class=\"fa fa-sitemap\" ><\/i> <a href=\"\/sitemap.xml\">Sitemap<\/a><\/li>\n <\/ul>\n <\/div>\n \n <\/div>\n\n <div class=\"footer-bottom\">\n <p>&copy; <span id=\"footer-year\"><\/span> DNSRiver.com. All rights reserved.<\/p>\n <\/div>\n<\/footer>\n\n<!-- Enhanced Footer Styles -->\n<style>\n @import url('https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.4.0\/css\/all.min.css');\n\n footer {\n background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);\n color: #fff;\n padding: 60px 20px 20px;\n font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n box-shadow: 0 -3px 10px rgba(0,0,0,0.3);\n }\n\n .footer-container {\n display: flex;\n flex-wrap: wrap;\n max-width: 1200px;\n margin: 0 auto;\n justify-content: space-between;\n }\n\n .footer-column {\n flex: 1 1 220px;\n margin: 20px;\n transition: transform 0.3s ease;\n }\n\n .footer-column:hover {\n transform: translateY(-5px);\n }\n\n .footer-column h3 {\n color: #00d8ff;\n font-size: 1.2em;\n margin-bottom: 15px;\n text-transform: uppercase;\n display: flex;\n align-items: center;\n gap: 10px;\n }\n\n .footer-column p {\n font-size: 14px;\n line-height: 1.6;\n color: #ccc;\n }\n\n .footer-column ul {\n list-style: none;\n padding: 0;\n }\n\n .footer-column ul li {\n margin-bottom: 12px;\n display: flex;\n align-items: center;\n gap: 8px;\n }\n\n .footer-column ul li a {\n color: #fff;\n text-decoration: none;\n font-size: 14px;\n position: relative;\n transition: color 0.3s;\n }\n\n .footer-column ul li a::after {\n content: '';\n position: absolute;\n width: 0%;\n height: 2px;\n background: #00d8ff;\n left: 0;\n bottom: -2px;\n transition: width 0.3s;\n }\n\n .footer-column ul li a:hover {\n color: #00d8ff;\n }\n\n .footer-column ul li a:hover::after {\n width: 100%;\n }\n\n .footer-bottom {\n text-align: center;\n margin-top: 40px;\n border-top: 1px solid rgba(255,255,255,0.2);\n padding-top: 15px;\n font-size: 14px;\n color: #aaaaaa;\n }\n\n @media (max-width: 768px) {\n .footer-container {\n flex-direction: column;\n align-items: center;\n }\n\n .footer-column {\n margin: 15px 0;\n text-align: center;\n }\n\n .footer-column ul li {\n justify-content: center;\n }\n }\n<\/style>\n\n<!-- Footer JS -->\n<script>\n document.getElementById(\"footer-year\").textContent = new Date().getFullYear();\n<\/script>\n"},"cookie":{"enable":true,"text":"<p>By using this website you agree to our <a href=\"#\" target=\"_blank\">Cookie Policy<\/a><\/p>"},"font_family":"Inter","text":{"above_map":"<p>Find out how your domain's DNS records are propagating worldwide.<\/p>","below_map":"<p>Check real-time DNS status from global server locations.<\/p><h3><br><\/h3><h2>What is DNS?<\/h2><p><br><\/p><p>The Domain Name System (DNS) is a foundational technology that allows the internet to work. It acts as a global directory, translating easy-to-remember <strong style=\"background-color: rgba(0, 0, 0, 0);\">domain names<\/strong> (like <code style=\"color: rgb(87, 91, 95); background-color: rgb(233, 238, 246);\">dnsriver.com<\/code>) into complex <strong style=\"background-color: rgba(0, 0, 0, 0);\">IP addresses<\/strong> (e.g., <code style=\"color: rgb(87, 91, 95); background-color: rgb(233, 238, 246);\">192.0.2.1<\/code>). This translation process is what allows your web browser to locate and load the correct website. Without DNS, navigating the web would be nearly impossible. Our system relies on a distributed network of DNS servers to ensure every request is routed correctly and efficiently.<\/p><p><br><\/p><h2>What is DNS Propagation?<\/h2><p><br><\/p><p>When you update your domain's DNS records\u2014for example, to point your website to a new hosting provider or to change your email service\u2014this new information needs to be distributed across all the internet's servers. This crucial update process is called <strong style=\"background-color: rgba(0, 0, 0, 0);\">DNS propagation<\/strong>. It's not instantaneous; the time it takes for changes to fully propagate can range from a few minutes to over 48 hours, depending on various factors like server caching and DNS record TTL (Time to Live).<\/p><p><br><\/p><h2>Why a DNS Propagation Checker Important?<\/h2><p><br><\/p><p>During propagation, a website may be accessible in some regions but not others, leading to user frustration, potential downtime, and lost business.<\/p><p>This is precisely where our <strong style=\"background-color: rgba(0, 0, 0, 0);\">DNS Propagation Checker<\/strong> becomes an essential tool for <strong style=\"background-color: rgba(0, 0, 0, 0);\">website owners<\/strong>, <strong style=\"background-color: rgba(0, 0, 0, 0);\">web developers<\/strong>, and <strong style=\"background-color: rgba(0, 0, 0, 0);\">IT administrators<\/strong>. By querying DNS servers around the world, our tool provides a real-time, visual map of your domain's status. It helps you:<\/p><p><br><\/p><ul><li><strong style=\"background-color: rgba(0, 0, 0, 0);\">Verify DNS Changes:<\/strong> Confirm your DNS updates have been successfully implemented globally.<\/li><li><strong style=\"background-color: rgba(0, 0, 0, 0);\">Troubleshoot DNS Issues:<\/strong> Quickly diagnose any propagation delays or misconfigurations that could cause downtime.<\/li><li><strong style=\"background-color: rgba(0, 0, 0, 0);\">Monitor Your Domain:<\/strong> Gain peace of mind by tracking your DNS status from a wide network of server locations.<\/li><\/ul><p><br><\/p><p>Our <strong style=\"background-color: rgba(0, 0, 0, 0);\">free online tool<\/strong> takes the guesswork out of DNS management, giving you the confidence and control to ensure your domain is performing optimally.<\/p><p><br><\/p>","footer":"<h2>Welcome to DNSRiver \u2013 The Global Domain &amp; DNS Intelligence Platform<\/h2><p><br><\/p><p>At <strong>DNSRiver.com<\/strong>, we make it simple for anyone to <strong>monitor, manage, and optimize domains, DNS records, IP addresses, and email configurations<\/strong> worldwide. Whether you are a website owner, IT professional, or digital marketer, our platform delivers <strong>fast, reliable, and real-time insights<\/strong>, helping you stay ahead of technical issues and ensure your website is accessible globally.<\/p><p><br><\/p><h3>Track DNS Propagation Across the World<\/h3><p><br><\/p><p>Our <strong>interactive DNS propagation map<\/strong> shows exactly where your domain updates have reached. Instantly visualize changes across <strong>hundreds of DNS servers worldwide<\/strong>, identify delays, and ensure your website is fully accessible for users in every region.<\/p><ul><li>Check DNS propagation in real time<\/li><li>Detect nameserver changes and propagation delays instantly<\/li><li>Ensure your website is live globally without downtime<\/li><\/ul><blockquote>DNSRiver transforms complex DNS data into <strong>simple, actionable insights<\/strong>.<\/blockquote><h2><br><\/h2><h3>Deep Domain Insights with WHOIS Lookup<\/h3><p><br><\/p><p>Need to verify domain ownership or research a domain\u2019s history? Our <strong>WHOIS Lookup tool<\/strong> provides:<\/p><ul><li>Full domain registration details: owner, registrar, and expiration date<\/li><li>Secure access to public domain data<\/li><li>Quick verification before buying, selling, or transferring domains<\/li><\/ul><blockquote>Stay informed and make <strong>confident domain-related decisions<\/strong>.<\/blockquote><h2><br><\/h2><h3>IP Lookup and Network Analytics<\/h3><p><br><\/p><p>Identify server locations, trace website traffic, and monitor network health with our <strong>IP Lookup tool<\/strong>.<\/p><ul><li>Geolocation of IP addresses worldwide<\/li><li>ISP and network information at your fingertips<\/li><li>Essential for troubleshooting, security, and analytics<\/li><\/ul><blockquote>Gain the visibility you need to <strong>optimize your online presence<\/strong>.<\/blockquote><h2><br><\/h2><h3>Email Security &amp; Deliverability Tools<\/h3><p><br><\/p><p>Protect your domain and ensure emails reach the inbox with our email tools:<\/p><ul><li><strong>Blacklist Check<\/strong> \u2013 Identify and resolve domain or IP blacklisting issues<\/li><li><strong>DMARC &amp; SPF Checkers<\/strong> \u2013 Prevent email spoofing and phishing<\/li><li><strong>Email Header Analyzer<\/strong> \u2013 Trace messages and troubleshoot delivery issues<\/li><\/ul><blockquote>DNSRiver helps you <strong>safeguard your communication infrastructure effortlessly<\/strong>.<\/blockquote><h2><br><\/h2><h3>Why DNSRiver Stands Out<\/h3><p><br><\/p><ul><li><strong>Real-Time Accuracy:<\/strong> Tools update instantly to deliver precise results<\/li><li><strong>Privacy-First Approach:<\/strong> Minimal data storage and maximum confidentiality<\/li><li><strong>User-Friendly Design:<\/strong> Intuitive interface for beginners and professionals alike<\/li><li><strong>Completely Free:<\/strong> No subscriptions, hidden fees, or limitations<\/li><li><strong>Comprehensive Coverage:<\/strong> From DNS maps to IP lookup, WHOIS, and email security<\/li><\/ul><p><br><\/p><h3>Your Global DNS &amp; Domain Companion<\/h3><p><br><\/p><p>DNSRiver is not just a collection of tools\u2014it\u2019s a <strong>central hub for domain intelligence<\/strong>. Whether you are:<\/p><ul><li>Monitoring DNS propagation to prevent downtime<\/li><li>Verifying domains and ownership instantly<\/li><li>Analyzing IP addresses and server locations<\/li><li>Securing emails and improving deliverability<\/li><\/ul><p>DNSRiver delivers <strong>actionable insights with speed, clarity, and reliability<\/strong>.<\/p><blockquote>Empower your website, secure your email, and manage your domains <strong>with confidence\u2014all in one place<\/strong>.<\/blockquote><p>This version:<\/p><ul><li>Improves <strong>readability<\/strong> with headings and subheadings<\/li><li>Highlights key features with bullet points for quick scanning<\/li><li>Keeps <strong>SEO keywords naturally<\/strong>: DNS propagation, WHOIS lookup, IP lookup, email security, domain intelligence<\/li><li>Has a <strong>professional, authoritative, and engaging tone<\/strong><\/li><\/ul><p>If you want, I can also <strong>turn this into an HTML\/CSS block with modern design, icons, and colored sections<\/strong> for your website, so it looks visually appealing below your DNS map.<\/p><p class=\"ql-align-justify\">Do you want me to do that?<\/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"},"email_headers_btn":{"text":"Extract","color":"#5CC9FF","text_color":"#000000"},"spf_checker_btn":{"text":"Check ","color":"#5CC9FF","text_color":"#000000"},"default_dns":"A","enable_logs":true,"show_dark_mode":false,"enable_ad_block_detector":false,"map_fail_reloader":true,"timeout":5,"blacklist":{"servers":["dyna.spamrats.com","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","bl.score.senderscore.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"]},"captcha":"recaptcha3","recaptcha2":{"site_key":"","secret_key":""},"recaptcha3":{"site_key":"6Ldjw6wrAAAAAO_FZy74692lXbeBwa7KI59OenqF","secret_key":"6Ldjw6wrAAAAADi55Dmm2k7hFbxCsvC3kv8Ho_aq"},"hcaptcha":{"site_key":"","secret_key":""}}