{"id":29415,"date":"2025-08-20T12:57:54","date_gmt":"2025-08-20T05:57:54","guid":{"rendered":"https:\/\/dps.media\/quan-tri-ten-mien-cau-hinh-dns-kien-thuc-co-ban-cho-doanh-nghiep\/"},"modified":"2025-08-20T12:58:04","modified_gmt":"2025-08-20T05:58:04","slug":"domain-management-dns-configuration-basic-knowledge-for-businesses","status":"publish","type":"post","link":"https:\/\/dps.media\/en\/domain-management-dns-configuration-basic-knowledge-for-businesses\/","title":{"rendered":"Domain management &amp; DNS configuration \u2013 Basic knowledge for businesses"},"content":{"rendered":"<p>\t\t<\/p><div id=\"dps-dns-lookup-1-2744\" class=\"dps-dns-widget\" data-limit=\"100\" data-delay=\"120\" data-brand=\"DPS.MEDIA\" data-txt-all-dns=\"ALL DNS\" data-txt-stopping=\"Stopping...\" data-txt-enter-domain=\"Please enter at least one domain.\" data-txt-select-column=\"Please select at least one check type.\" data-txt-limit-exceeded=\"The list exceeds the limit of %s domains. Please split the list.\" data-txt-missing-config=\"Missing REST endpoint configuration.\" data-txt-stopped-at=\"Stopped at %s\/%s.\" data-txt-completed=\"Completed: %s domain(s) x %s column(s).\" data-txt-no-data-copy=\"No data to copy.\" data-txt-copied=\"TSV copied to clipboard.\" data-txt-copy-failed=\"Copy failed: %s\" data-txt-ready=\"Ready for DNS & server lookup\" data-txt-empty-subtext=\"One domain per line, check types are columns.\" data-txt-domain=\"Domain\" data-txt-empty=\"Empty\" data-txt-error=\"Error\" data-txt-conn-failed=\"Connection failed\" data-txt-no-cert=\"No certificate\" data-txt-parse-error=\"Parse error\" data-txt-days-left=\"days left\">\n\t\t\t<div class=\"dps-dns-shell\">\n\t\t\t\t<!-- Hidden translation container for TranslatePress compatibility -->\n\t\t\t\t<div class=\"dps-dns-translations\" style=\"display: none;\" aria-hidden=\"true\">\n\t\t\t\t\t<span class=\"t-txt-all-dns\">ALL DNS<\/span>\n\t\t\t\t\t<span class=\"t-txt-stopping\">Stopping...<\/span>\n\t\t\t\t\t<span class=\"t-txt-enter-domain\">Please enter at least one domain.<\/span>\n\t\t\t\t\t<span class=\"t-txt-select-column\">Please select at least one check type.<\/span>\n\t\t\t\t\t<span class=\"t-txt-limit-exceeded\">The list exceeds the limit of %s domains. Please split the list.<\/span>\n\t\t\t\t\t<span class=\"t-txt-missing-config\">Missing REST endpoint configuration.<\/span>\n\t\t\t\t\t<span class=\"t-txt-stopped-at\">Stopped at %s\/%s.<\/span>\n\t\t\t\t\t<span class=\"t-txt-completed\">Completed: %s domain(s) x %s column(s).<\/span>\n\t\t\t\t\t<span class=\"t-txt-no-data-copy\">No data to copy.<\/span>\n\t\t\t\t\t<span class=\"t-txt-copied\">TSV copied to clipboard.<\/span>\n\t\t\t\t\t<span class=\"t-txt-copy-failed\">Copy failed: %s<\/span>\n\t\t\t\t\t<span class=\"t-txt-ready\">Ready for DNS & server lookup<\/span>\n\t\t\t\t\t<span class=\"t-txt-empty-subtext\">One domain per line, check types are columns.<\/span>\n\t\t\t\t\t<span class=\"t-txt-domain\">Domain<\/span>\n\t\t\t\t\t<span class=\"t-txt-empty\">Empty<\/span>\n\t\t\t\t\t<span class=\"t-txt-error\">Error<\/span>\n\t\t\t\t\t<span class=\"t-txt-conn-failed\">Connection failed<\/span>\n\t\t\t\t\t<span class=\"t-txt-no-cert\">No certificate<\/span>\n\t\t\t\t\t<span class=\"t-txt-parse-error\">Parse error<\/span>\n\t\t\t\t\t<span class=\"t-txt-days-left\">days left<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"dps-dns-header\">\n\t\t\t\t\t<div class=\"dps-dns-header-mark\" aria-hidden=\"true\">DPS<\/div>\n\t\t\t\t\t<div class=\"dps-dns-header-copy\">\n\t\t\t\t\t\t<div class=\"dps-dns-title\">Bulk DNS & Server Lookup<\/div>\n\t\t\t\t\t\t<div class=\"dps-dns-subtitle\">Professional tool from DPS.MEDIA<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"dps-dns-brand\">DPS.MEDIA<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"dps-dns-description\">Enter one domain per line, select columns to check, then copy results as TSV.<\/div>\n\n\t\t\t\t<div class=\"dps-dns-workbench\">\n\t\t\t\t\t<div class=\"dps-dns-input-panel\">\n\t\t\t\t\t\t<label class=\"dps-dns-label\" for=\"dps-dns-lookup-1-2744-domains\">Domain list<\/label>\n\t\t\t\t\t\t<div class=\"dps-dns-textarea-wrap\">\n\t\t\t\t\t\t\t<textarea id=\"dps-dns-lookup-1-2744-domains\" class=\"dps-dns-textarea\" rows=\"7\" spellcheck=\"false\" placeholder=\"dps.mediaexample.comhttps:\/\/sub.domain.com\/path\"><\/textarea>\n\t\t\t\t\t\t\t<div class=\"dps-dns-count\" aria-live=\"polite\">0<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"dps-dns-control-panel\">\n\t\t\t\t\t\t<div class=\"dps-dns-control-group\">\n\t\t\t\t\t\t\t<div class=\"dps-dns-label\">Columns to check<\/div>\n\t\t\t\t\t\t\t<div class=\"dps-dns-types\" role=\"group\" aria-label=\"Select DNS and server columns to check\"><\/div>\n\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<div class=\"dps-dns-control-row\">\n\t\t\t\t\t\t\t<label class=\"dps-dns-delay\">\n\t\t\t\t\t\t\t\t<span class=\"dps-dns-label\">Delay<\/span>\n\t\t\t\t\t\t\t\t<span class=\"dps-dns-delay-input\">\n\t\t\t\t\t\t\t\t\t<input class=\"dps-dns-delay-field\" type=\"number\" min=\"50\" max=\"5000\" step=\"10\" value=\"120\">\n\t\t\t\t\t\t\t\t\t<span>ms<\/span>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t<button class=\"dps-dns-button dps-dns-button-primary\" type=\"button\" data-action=\"run\">Start<\/button>\n\t\t\t\t\t\t\t<button class=\"dps-dns-button dps-dns-button-danger\" type=\"button\" data-action=\"stop\" hidden>Stop<\/button>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"dps-dns-toolbar\">\n\t\t\t\t\t<button class=\"dps-dns-tool-button\" type=\"button\" data-action=\"copy\" disabled>Copy TSV<\/button>\n\t\t\t\t\t<button class=\"dps-dns-tool-button\" type=\"button\" data-action=\"clear\">Clear results<\/button>\n\t\t\t\t\t<div class=\"dps-dns-progress\" aria-hidden=\"true\"><span><\/span><\/div>\n\t\t\t\t\t<div class=\"dps-dns-status\" aria-live=\"polite\"><\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"dps-dns-error\" role=\"alert\" hidden><\/div>\n\t\t\t\t<div class=\"dps-dns-results\" aria-live=\"polite\">\n\t\t\t\t\t<div class=\"dps-dns-empty\">\n\t\t\t\t\t\t<div class=\"dps-dns-empty-icon\" aria-hidden=\"true\">Lookup<\/div>\n\t\t\t\t\t\t<div class=\"dps-dns-empty-title\">Ready for DNS & server lookup<\/div>\n\t\t\t\t\t\t<div class=\"dps-dns-empty-copy\">One domain per line, check types are columns.<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"dps-dns-footer\">\n\t\t\t\t\t<span>Developed by<\/span>\n\t\t\t\t\t<a href=\"https:\/\/dps.media\/en\/\" target=\"_blank\" rel=\"noopener noreferrer\">DPS.MEDIA<\/a>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><strong>Domain management and DNS configuration are the living foundation that also helps businesses ensure a stable and secure online presence.<\/strong><p>According to surveys, more than 60% of website incidents come from domain setup and DNS errors.  <\/p><p>DPS.MEDIA \u0111\u00e3 h\u1ed7 tr\u1ee3 \u2064h\u00e0ng tr\u0103m\u2062 SMEs \u2063t\u1ed1i \u2063\u01b0u qu\u1ea3n tr\u1ecb t\u00ean mi\u1ec1n, \u2063t\u0103ng t\u00ednh b\u1ea3o m\u1eadt v\u00e0 tr\u00e1nh m\u1ea5t \u200dkh\u00e1ch h\u00e0ng.  <\/p><p>Understanding this knowledge helps businesses effectively control digital brand reputation, enhancing credibility and revenue.<br><img decoding=\"async\" class=\"kimage_class\" src=\"https:\/\/www.akamai.com\/site\/en\/images\/article\/2023\/domain-management-linode.jpg\" alt=\"Understand clearly the role of domain names in business brand strategy\" title=\"\"><\/p><h2 id=\"hieu-ro-vai-tro-cua-ten-mien-trong-chien-luoc-thuong-hieu-doanh-nghiep\">Understand the role of domain names in corporate branding strategy<\/h2><h3>T\u00ean mi\u1ec1n l\u00e0 t\u00e0i s\u1ea3n s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a doanh nghi\u1ec7p<\/h3><p>A domain name is not just a website address \u2013 it is an important part of <strong>brand identity<\/strong>. It directly affects the ability to recognize, reputation, and customer trust level. An easy-to-remember domain name, closely associated with the brand name, helps increase brand recall rate by 63% (according to Nielsen, 2022).  <\/p><p>Example: A Vietnamese interior business once used a scattered .xyz domain, leading to a 40% drop in access rate due to confusion. After switching to a brand domain .vn, traffic increased 2.3 times in 6 months (internal anonymous data from DPS.MEDIA 2023).  <\/p><h3>Impact on SEO, advertising, and conversion<\/h3><p>A domain name closely linked to digital marketing campaign effectiveness. A standard domain helps:<\/p><p>\u2013 Optimize CTR (Click-thru Rate) in Google advertising<br>\n\u2013 Improve the speed of Google indexing<br>\n\u2013 Increase reliability when deploying custom domain emails (avoiding spam)<\/p><div class=\"wp-block-group has-background\">\n  <strong>TIP:<\/strong> Choosing a memorable domain name &amp; syncing with social media (e.g.: tenmien.com, @tenmien on Facebook\/Instagram) helps increase cross-channel recognition!\n<\/div><h3>Checklist b\u1ea3o\u2064 v\u1ec7 th\u01b0\u01a1ng hi\u1ec7u\u2063 qua\u2062 t\u00ean mi\u1ec1n<\/h3><p>To ensure protection and optimize domain name usage, businesses should:<\/p><ul>\n<li>Register a domain name suitable for the brand voice (brand name with recognition signs)<\/li>\n<li>Register variants: .com, .vn, .net to prevent disputes<\/li>\n<li>Configure DNS standards SPF, DKIM, DMARC to protect brand emails<\/li>\n<li>Update full owner information and ensure timely renewal<\/li>\n<\/ul><h3>Summary table: Brand &amp; domain name selection<\/h3><table class=\"wp-block-table WordPress\">\n<thead>\n<tr>\n<th>Factors<\/th>\n<th>Domain name selection suggestions<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Domestic market<\/td>\n<td>Use .vn \u2013 increase domestic trust<\/td>\n<\/tr>\n<tr>\n<td>International market<\/td>\n<td>Use .com or country-specific domains for target markets<\/td>\n<\/tr>\n<tr>\n<td>Advertising campaigns<\/td>\n<td>Short, easy-to-read domain names without hyphens<\/td>\n<\/tr>\n<\/tbody>\n<\/table><h3>R\u1ee7i ro n\u1ebfu \u0111\u00e1nh gi\u00e1 sai\u2064 vai tr\u00f2 t\u00ean mi\u1ec1n<\/h3><p>If undervaluing domain name value, businesses may face:<\/p><p>\u2013 Losing customers to competitors using similar domain names<br>\n\u2013 Facing legal disputes if intellectual property is not protected from the start<br>\n\u2013 Losing business emails to spam if DNS is not configured correctly (according to Google Security report, 2021: more than 80% of junk emails use fake domains)<\/p><h3>Brief takeaway:<\/h3><p>Choosing and managing domain names is a strategic step in building a digital brand. Early serious investment helps save recovery or brand protection costs later.<br><img decoding=\"async\" class=\"kimage_class\" src=\"https:\/\/dps.media\/wp-content\/uploads\/2025\/08\/ecycle.jpg\" alt=\"Common domain types and how to choose a suitable domain for SMEs\" title=\"\"><\/p><h2 id=\"cac-loai-ten-mien-pho-bien-va-cach-lua-chon-ten-mien-phu-hop-cho-doanh-nghiep-smes\">Common types of domain names and how to choose suitable domain names for SMEs<\/h2><h3>Common domain name types nowadays<\/h3><p>Domain names are a crucial factor in building an online brand for every business. SMEs should clearly understand domain types to make appropriate choices:<\/p><ul>\n<li><strong>.com<\/strong> \u2013 Popular, easy to remember, suitable for most fields.<\/li>\n<li><strong>.vn<\/strong> \u2013 High trust level in the Vietnamese market.<\/li>\n<li><strong>.com.vn<\/strong> \u2013 Meets local SEO requirements and positions Vietnamese businesses.<\/li>\n<li><strong>.net<\/strong> \u2013 Alternative when .com is registered, often used for technology companies.<\/li>\n<li><strong>.org, \u200b.edu<\/strong> \u2013 For organizations, education, not suitable for commercial SMEs.<\/li>\n<\/ul><p>According to the report from Verisign (2023), 46.5% websites worldwide use the .com domain name due to its popularity \u2062and high brand recognition.<\/p><h3>How do SMEs choose domain names appropriately?<\/h3><p>When choosing a domain name, small and medium enterprises should \u200bfocus on\u200d reliability, scalability, and brand consistency. A good domain name does not need to be long, but should be easy to type, easy to remember, and avoid confusion.<\/p><ul>\n<li>Short \u200bname <strong>short, no accents, no special characters<\/strong>.<\/li>\n<li>Easy to read, easy to pronounce \u2013 serving customers searching via word of mouth.<\/li>\n<li>Match or relate to the company\/brand name.<\/li>\n<li>Check \u2063availability <strong>buy domain names with other extensions \u2062to protect the brand<\/strong>.<\/li>\n<\/ul><div class=\"wp-block-group has-background\">\n<p><strong>Tip:<\/strong> \u200cAvoid choosing domain names too similar to competitors or containing registered trademarks to \u200cavoid legal violations and SEO conflicts.<\/p>\n<\/div><h3>Quick comparison table of domain name types suitable for SMEs<\/h3><table class=\"WordPress\">\n<thead>\n<tr>\n<th>Domain\u200b name<\/th>\n<th>Short \u2062points<\/th>\n<th>Suitable for<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>.com<\/td>\n<td>Popular, easy to remember, professional<\/td>\n<td>All types of businesses<\/td>\n<\/tr>\n<tr>\n<td>.vn<\/td>\n<td>Reliable in \u2064Vietnam, supports local SEO<\/td>\n<td>Domestic businesses, focusing on the Vietnamese market<\/td>\n<\/tr>\n<tr>\n<td>.com.vn<\/td>\n<td>Combine international and domestic \u2062special features<\/td>\n<td>Businesses operating both online \u2062and offline<\/td>\n<\/tr>\n<tr>\n<td>.net<\/td>\n<td>Alternative when .com is \u2064taken<\/td>\n<td>Technology businesses, digital services<\/td>\n<\/tr>\n<\/tbody>\n<\/table><h3>Domain name selection checklist for SMEs<\/h3><ul>\n<li>\u2714 \u2063Check domain availability at providers like GoDaddy, MatBao, Tenten<\/li>\n<li>\u2714 Access WHOIS to ensure ownership information is \u200bclear\u2063<\/li>\n<li>\u2714 Check SEO factors: \u200cdomain length, relevant keywords<\/li>\n<li>\u2714 Register to protect the brand with various popular extensions (.com\/.vn\/\u2026)<\/li>\n<\/ul><p>Example: \u200bAn online sports goods business initially chose the domain \u200bthethao24h.net because .com was already purchased. However, later it faced difficulties when customers remembered \u2062it as .com leading to significant traffic loss (\u01b0\u1edbc \u200destimated 12% according to Google Analytics Q1\/2023). Eventually, they had to \u200brepurchase thethao24h.com at 20 times the original registration price.<\/p><h3>Challenges &amp; advice when choosing a domain name<\/h3><ul>\n<li>High competition causes many good domain names to be \u200cpurchased early or reserved<\/li>\n<li>Loss of brand \u2062if related extensions are not registered<\/li>\n<li>Inconsistent domain and brand names cause communication difficulties<\/li>\n<\/ul><div class=\"wp-block-group has-background\">\n<p><strong>Tip:<\/strong> Always \u0111\u0103ng \u200bk\u00fd \u200dt\u00ean mi\u1ec1n\u2063 for at least 2 years \u200cto enable auto-renewal to\u200b avoid risks of losing due to \u200cexpiration \u2062forgetfulness.<\/p>\n<\/div><h3>Brief takeaway<\/h3><p>Choosing the right <strong>domain name<\/strong> is the first step in building a sustainable digital presence for SMEs. Invest carefully from the start to avoid waste and \u2063future risks.\u200b Establish a brand foundation starting from \u200c <strong>a reliable \u2062URL line<\/strong>.<br><img decoding=\"async\" class=\"kimage_class\" src=\"https:\/\/dps.media\/wp-content\/uploads\/2025\/08\/ecycle.jpg68a5.jpg\" alt=\"Overview of DNS system and how domain management services operate\" title=\"\"><\/p><h2 id=\"tong-quan-ve-he-thong-dns-va-cach-hoat-dong-cua-dich-vu-quan-ly-mien\">Overview of the DNS system and how domain management services operate<\/h2><h3>What is DNS and what role does it play?<\/h3><p>DNS (Domain \u200cName System)\u2064 is a system that translates domain names into IP addresses, helping users easily access websites by domain name instead of hard-to-remember numbers. Some main functions of DNS:<\/p><p>-\u2063 D\u1ecbch \u200dt\u00ean mi\u1ec1n (VD: www.example.com) \u200cth\u00e0nh \u0111\u1ecba ch\u1ec9 \u200bIP (VD: 192.168.1.1)  \u200d<br>\n\u2013 Support routing email and other services via MX, TXT, SPF records<br>\n\u2013 Increase reliability and scalability for the web system  <\/p><p>According to VeriSign\u200b (Internet\u2064 Trends 2023) report, there are over 350 million domain names \u0111\u00e3 \u200bregistered globally \u2063- \u0111emonstrating the essential role of DNS in the digital age.<\/p><h3>How domain management services operate<\/h3><p>Domain management services are usually performed through registrars, where users can:<\/p><p>\u2013 Buy and renew domain names<br>\n\u2013 Point DNS to a server or hosting service<br>\n\u2013 Create and edit DNS records such as A, CNAME, MX, TXT  <\/p><p>Practical example: An online store after registering a domain name pointed it to the Shopify platform, used A and CNAME records to integrate the web, and added a TXT record to verify with Google Workspace \u2013 the operation was completed in less than 30 minutes.<\/p><div class=\"wp-block-group has-background\">\n  <strong>TIP:<\/strong> Always note the DNS update time \u2013 it usually takes from 5 minutes to 24 hours to take effect globally.\n<\/div><h3>Minimum checklist for stable DNS operation<\/h3><p>Below is a list of periodic checks:<\/p><ul>\n<li>\u2705 Check that the domain name has been renewed on time<\/li>\n<li>\u2705 Verify that A and CNAME records have the correct IP\/server address<\/li>\n<li>\u2705 Check MX records if using email with the domain name<\/li>\n<li>\u2705 Add TXT\/SPF\/DMARC records to secure against email spoofing<\/li>\n<li>\u2705 Use reputable third-party DNS to optimize response time (Cloudflare, Google DNS,\u2026)<\/li>\n<\/ul><h3>Illustration table of common DNS record types<\/h3><table class=\"WordPress\">\n<thead>\n<tr>\n<th>Record type<\/th>\n<th>Function<\/th>\n<th>Example<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>A<\/strong><\/td>\n<td>Point domain name to IP address<\/td>\n<td>A \u2192 203.113.1.1<\/td>\n<\/tr>\n<tr>\n<td><strong>CNAME<\/strong><\/td>\n<td>Point subdomain to main domain<\/td>\n<td>www \u2192 example.com<\/td>\n<\/tr>\n<tr>\n<td><strong>MX<\/strong><\/td>\n<td>Email routing<\/td>\n<td>mail \u2192\u2062 mail.example.com<\/td>\n<\/tr>\n<tr>\n<td><strong>TXT<\/strong><\/td>\n<td>Verify &amp; configure SPF\/DMARC<\/td>\n<td>\u201cv=spf1 include:_spf.google.com ~all\u201d<\/td>\n<\/tr>\n<\/tbody>\n<\/table><h3>Challenges and maintenance notes for DNS<\/h3><p>\u2013 Incorrectly editing DNS records can cause downtime up to several hours if not carefully controlled.<br>\n\u2013 DNS updates need a rollback strategy to avoid affecting email or website services.  <\/p><div class=\"wp-block-group has-background\">\n  <strong>NOTE:<\/strong> Don't forget to back up DNS settings before making any changes \u2013 especially during major system migrations.\n<\/div><h3>Key Takeaway:<\/h3><p>Mastering the structure and operation of DNS helps businesses proactively control their website, optimize uptime and system security \u2013 an indispensable capability in the digital transformation journey. A well-configured DNS system will be a solid foundation for all online activities of the business.<br><img decoding=\"async\" class=\"kimage_class\" src=\"https:\/\/dps.media\/wp-content\/uploads\/2025\/08\/v5qUKg.jpg\" alt=\"Basic DNS configuration steps to ensure stable website and email operation\" title=\"\"><\/p><h2 id=\"cac-buoc-cau-hinh-dns-co-ban-de-dam-bao-website-va-email-van-hanh-on-dinh\">Basic DNS configuration steps to ensure stable website and email operation<\/h2><h3>1. Identify the DNS infrastructure to be configured<\/h3><p>Before starting, identify whether you are using the DNS service of the domain registrar or switching to a specialized platform like Cloudflare or Amazon Route 53. This directly affects how you operate.<\/p><p>\u2714\ufe0f Action items:<\/p><p>\u2013 Check current DNS management location.<br>\n\u2013 Verify DNS administrative access (hosting or domain panel).<br>\n\u2013 Statistics of web and email services in use to configure records correctly.<\/p><h3>2. Create &amp; check essential DNS records<\/h3><p>After accessing the DNS system, set up the basic records according to the following table:<\/p><table class=\"WordPress\">\n<thead>\n<tr>\n<th>Lo\u1ea1i\u2063 b\u1ea3n ghi<\/th>\n<th>Purpose<\/th>\n<th>Example data<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>A record<\/td>\n<td>Point domain name to hosting IP<\/td>\n<td>203.113.173.88<\/td>\n<\/tr>\n<tr>\n<td>CNAME<\/td>\n<td>Redirect subdomain<\/td>\n<td>mail \u2192 mailserver.example.com<\/td>\n<\/tr>\n<tr>\n<td>MX<\/td>\n<td>Email routing<\/td>\n<td>ASPMX.L.GOOGLE.COM<\/td>\n<\/tr>\n<tr>\n<td>TXT<\/td>\n<td>SPF, DKIM, DMARC authentication<\/td>\n<td>\u201cv=spf1 include:_spf.google.com ~all\u201d<\/td>\n<\/tr>\n<\/tbody>\n<\/table><p>\ud83d\udc49 A typical example is a logistics company using \u200bGoogle Workspace but forgetting to configure the TXT record for SPF. \u200bThe consequence: sent emails are classified as spam\u200b or not delivered. The simple act\u2064 of adding the correct SPF record \u2064can help improve the successful delivery rate up to 97.1% \u2062(according to Cisco Email Security report, 2023).<\/p><h3>3. Regular inspection &amp; maintenance to prevent DNS errors<\/h3><p>Common DNS errors \u200boccur after changing \u200bserver IP or updating\u200b subdomain names but forgetting to edit related records. It is necessary\u200c to regularly check \u2064configuration \u2063to avoid unexpected issues.<\/p><div class=\"wp-block-group has-background\">\n  \ud83d\udca1 <strong>Tip:<\/strong> Use free tools \u2062like DNSStuff, MXToolbox or DNSCheck\u2063 (RIPE) \u200cto check \u2063configuration regularly every month.\n<\/div><p>\ud83d\udfe2 Quick checklist to\u200d ensure \u2064DNS system stability:<\/p><p>\u2013 [ ] A record always points to the latest IP<br>\n\u2013 [ ] MX matches the email service in use (gmail, Zoho, Outlook\u2026)<br>\n\u2013 [ ] TXT correctly contains SPF and DKIM (if using email domain)<br>\n\u2013 [ ] Appropriate TTL (not too short\/long)<br>\n\u2013 [ ] No conflict between CNAME and other records with the same name<\/p><h3>4. Alerts for incorrect or missing DNS authentication<\/h3><p>If missing TXT records for DKIM \u200cauthentication \u200cor incorrect SPF, emails may\u2063 be marked as spam or \u2062rejected by Google,\u200b Microsoft. Also, long DNS cache times can cause website access interruptions up to\u200c 24 hours.<\/p><p>According to Verisign DNS Report Q2\/2022 statistics, 34.1% of medium and small enterprises experienced website access interruptions over 6\u2062 hours due to incorrect DNS record configuration errors.<\/p><h3>Brief takeaway<\/h3><p><strong>DNS is not only a technical aspect but also the foundation for websites and\u2064 email to operate reliably.<\/strong> \u200d Ensure accurate \u2062configuration\u2062 from the start, regularly check and flexibly update according to infrastructure changes of the enterprise. This\u2063 helps reduce risks\u200c of access interruptions and increases\u2064 trust with \u200bcustomers.<\/p><p>\u2013<\/p><p>DPS.MEDIA JSC -\u200b Digital Marketing Solutions for SMEs<br>\n\ud83d\udccd 56 Nguy\u1ec5n \u0110\u00ecnh Chi\u1ec3u, T\u00e2n\u2064 \u0110\u1ecbnh, HCM<br>\n\ud83d\udce7 marketing@dps.media | \u2063\u260e\ufe0f 0961545445<br><img decoding=\"async\" class=\"kimage_class\" src=\"https:\/\/dps.media\/wp-content\/uploads\/2025\/08\/ervice.jpg0ba3.jpg\" alt=\"How to prevent security risks related to domain names and DNS\" title=\"\"><\/p><h2 id=\"lam-teh-nao-de-phong-tranh-cac-rui-ro-bao-mat-lien-quan-den-ten-mien-va-dns\">How to prevent security risks related to domain names and DNS<\/h2><h3>Use reputable domain registrars<\/h3><p>Choosing a reputable domain name provider is the first step to ensure safety. Avoid units of unknown origin \u2013 where security configurations are loose or easily attacked. According to the 2023 Cloudflare Report, more than 45% of domain hijacking victims were due to using poorly secured providers.<\/p><ul>\n<li>Choose units that support two-factor authentication (2FA)<\/li>\n<li>\u01afu first, \u200cthe registrant has a clear\u200b domain recovery process<\/li>\n<li>Regularly update domain administrator information<\/li>\n<\/ul><h3>Activate and maintain two-factor authentication (2FA)<\/h3><p>This is \u2063the first line of defense\u200b helping reduce the chance of losing DNS management accounts or\u2062 domain registrant accounts. Many DNS spoofing attacks \u200cin recent years\u200b originated from losing access rights simply because 2FA was not enabled.<\/p><div class=\"wp-block-group has-background\" style=\"background-color:#f5f5f5;padding:15px;margin:20px 0\">\n  <strong>TIP:<\/strong> Limit public email use as domain management accounts. Create a\u200c separate address only for technical administration.\n<\/div><h3>Secure DNS configuration and regular change monitoring<\/h3><p>DNS is a \u2062common blind spot when securing systems, as many businesses set it up and then leave it. According to Cisco survey (Security Outcomes Report 2023), only 28.1% of SMEs regularly control DNS configuration.<\/p><ul>\n<li>Always\u2064 enable DNSSEC\u200b to authenticate DNS data sources<\/li>\n<li>Do not publicize unnecessary subdomains<\/li>\n<li>Set up automatic monitoring with email alerts when \u200brecords change<\/li>\n<\/ul><h3>Domain name &amp; DNS protection checklist (updated monthly)<\/h3><table class=\"WordPress\" style=\"width: 100%;border-collapse: collapse\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #ccc;padding: 8px\">Checklist items<\/th>\n<th style=\"border: 1px solid #ccc;padding: 8px\">Status<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 8px\">2FA authentication for\u2062 domain management accounts<\/td>\n<td style=\"border: 1px solid #ccc;padding: 8px\">\u2705<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 8px\">Enable \u2064DNSSEC<\/td>\n<td style=\"border: 1px solid #ccc;padding: 8px\">\ud83d\udfe1 (configuring)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 8px\">Schedule monthly DNS record checks<\/td>\n<td style=\"border: 1px solid #ccc;padding: 8px\">\u2705<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc;padding: 8px\">Hide domain WHOIS information<\/td>\n<td style=\"border: 1px solid #ccc;padding: 8px\">\u274c<\/td>\n<\/tr>\n<\/tbody>\n<\/table><h3>Real example: Domain name hijacking<\/h3><p>A logistics service company in \u2063Ho Chi Minh City \u200cused a foreign registrar at a low price with an account without 2FA.\u200b After 3 years of operation, hackers took over the email account of the registrar and changed DNS records, redirecting all traffic to a fake website copy. Consequence:\u2064 customers lost trust, conversion rates\u2062 dropped 58.1% in the first 2 weeks after the incident (Source: Internal case\u200b study, 2022).<\/p><h3>Key Takeaway<\/h3><p>Managing domain names and DNS is not just technical work \u2013 it is an important part of the business's security ecosystem. Don't wait until an incident occurs to review. Proactively checking every month is the most effective way to defend.<br><img decoding=\"async\" class=\"kimage_class\" src=\"https:\/\/dps.media\/wp-content\/uploads\/2025\/08\/-panel.jpg\" alt=\"Optimize DNS to improve access performance and user experience\" title=\"\"><\/p><h2 id=\"toi-uu-hoa-dns-nham-nang-cao-hieu-suat-truy-cap-va-trai-nghiem-nguoi-dung\">Optimize DNS to improve access performance and user experience<\/h2><h3>Key role of DNS in access speed<\/h3><p>An efficient DNS system helps reduce domain name resolution time - a factor directly affecting <strong>page load time<\/strong>. According to Akamai's 2023 report, reducing DNS response time by just 30ms can improve conversion rates by up to 71% on e-commerce sites.<\/p><p>Some reasons why DNS slows down websites:<\/p><p>\u2013 DNS servers routing too far from the user<br>\n\u2013 DNS record structure is not optimized<br>\n\u2013 Inappropriate TTL (time-to-live) management<\/p><h3>Checklist \u200bt\u1ed1i \u01b0u\u2063 DNS cho doanh nghi\u1ec7p<\/h3><ul>\n<li>\u2714\ufe0f Use DNS Anycast to distribute load globally<\/li>\n<li>\u2714\ufe0f Regularly check DNS speed with tools like DNSPerf<\/li>\n<li>\u2714\ufe0f Set accurate CNAME\/A records, avoid redundancy<\/li>\n<li>\u2714\ufe0f Shorten TTL to respond quickly to incidents<\/li>\n<li>\u2714\ufe0f Use DNS solutions integrated with security technologies (DNSSEC, DDoS filtering)<\/li>\n<\/ul><div class=\"wp-block-group has-background\">\n  <strong>\ud83d\udca1 Tip:<\/strong> For e-commerce websites, it is recommended to deploy DNS services in multiple regions (multi-region) to improve latency for users in Southeast Asia or North America.\n<\/div><h3>Real illustration: improving DNS response time by 50%<\/h3><p>An online education customer in Vietnam once used the default provider's DNS. After switching to a specialized DNS service and adjusting the TTL from 1h down to 300s, the DNS response time improved from 120ms to 58ms \u2013 recorded via Cloudflare Radar (2023).<\/p><table class=\"WordPress\">\n<thead>\n<tr>\n<th>Indicators<\/th>\n<th>Before optimization<\/th>\n<th>After optimization<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DNS response time<\/td>\n<td>120ms<\/td>\n<td>58ms<\/td>\n<\/tr>\n<tr>\n<td>A record TTL<\/td>\n<td>3600s<\/td>\n<td>300s<\/td>\n<\/tr>\n<tr>\n<td>Server location<\/td>\n<td>Europe<\/td>\n<td>singapore<\/td>\n<\/tr>\n<\/tbody>\n<\/table><h3>Challenges when deploying advanced DNS<\/h3><p>Although DNS optimization brings clear benefits, businesses may face:<\/p><p>\u2013 Incurred costs when using third-party DNS<br>\n\u2013 High technical requirements when configuring multi-region DNS<br>\n\u2013 Risk of errors when changing important records (affecting email\/website)<\/p><p>Suitable DNS services should be chosen based on traffic volume, critical location, and operational goals rather than cost alone.<\/p><div class=\"wp-block-group has-background\">\n  <strong>Key Takeaway:<\/strong> DNS is not only a technical component but also directly affects <strong>user experience<\/strong> and business performance. DNS optimization is essential, especially for platforms with high traffic or serving global customers.\n<\/div><p><img decoding=\"async\" class=\"kimage_class\" src=\"https:\/\/dps.media\/wp-content\/uploads\/2025\/08\/-silos.jpg\" alt=\"Instructions for safely renewing and transferring domain names for businesses\" title=\"\"><\/p><h2 id=\"huong-dan-quy-trinh-gia-han-va-chuyen-nhuong-ten-mien-an-toan-cho-doanh-nghiep\">Guide to safely renew and transfer domain names for businesses<\/h2><h3>Renew domain names on time to avoid service interruption<\/h3><p>Renewal is a crucial step to ensure a business's domain name is not lost or falls into competitors' hands. According to ICANN (2022), over 251,000 small businesses have experienced downtime and disruption of their website or email due to late renewal.<\/p><p>Domain renewal checklist:<\/p><ul>\n<li>Check domain expiration date in DNS management<\/li>\n<li>Schedule automatic renewal or set reminders 30 days in advance<\/li>\n<li>Verify contact information of the domain owner is accurate<\/li>\n<li>Storage of payment documents &amp; confirmation emails from the registrar<\/li>\n<\/ul><div class=\"wp-block-group has-background\">\n<p><strong>Tip:<\/strong> Using a separate domain account (not merged with email or hosting) helps you better control credibility &amp; ownership rights when there are disputes.<\/p>\n<\/div><h3>Transfer domain names according to the correct &amp; transparent process<\/h3><p>If a business needs to transfer the domain name to a new legal entity or hand it over to a partner, a clear transfer process must be applied to avoid loss of rights. For example, a tech startup in Ho Chi Minh City lost their website after a freelancer held the domain without proper transfer.<\/p><p>Safe transfer steps:<\/p><ol>\n<li>Prepare a valid transfer document with confirmation from both parties<\/li>\n<li>Verify the identity of the domain rights recipient<\/li>\n<li>Unlock the domain and obtain the EPP\/Auth Code from the registrar<\/li>\n<li>Perform the transfer through the system of a reputable registrar (such as Mat Bao, P.A Vietnam, ...)<\/li>\n<\/ol><table class=\"WordPress\">\n<thead>\n<tr>\n<th>Step<\/th>\n<th>Processing time<\/th>\n<th>Verification request<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Obtain EPP code<\/td>\n<td>5-15 minutes<\/td>\n<td>Admin login<\/td>\n<\/tr>\n<tr>\n<td>Transfer request<\/td>\n<td>1-5 days<\/td>\n<td>Email confirmation from both parties<\/td>\n<\/tr>\n<tr>\n<td>Complete transfer<\/td>\n<td>24 hours after approval<\/td>\n<td>Registrar system<\/td>\n<\/tr>\n<\/tbody>\n<\/table><div class=\"wp-block-group has-background\">\n<p><strong>Warning:<\/strong> Absolutely do not share the EPP code or domain login credentials via email without encryption. This is a common cause of domain loss according to Namecheap's 2023 report.<\/p>\n<\/div><h3>Key Takeaway<\/h3><p>Ensuring the domain name is strictly managed &amp; the transfer process is transparent will help businesses minimize legal risks and preserve brand reputation. Don't let control be lost just because of an operation lacking checks! <\/p><h2 id=\"outro\">Key takeaways<\/h2><p>Domain management and DNS configuration are important foundations for a business's digital presence. Understand correctly - do it properly - keep it secure is the core principle to remember.<\/p><p>Review your domain system today. Start by checking DNS records and ensuring regular backups.<\/p><p>If you care about DNS or business email security, don't overlook key topics like SPF, DKIM, and DMARC.<\/p><p>DPS.MEDIA always accompanies Vietnamese businesses on their digital transformation journey. Share your opinions or questions by leaving a comment! <\/p>","protected":false},"excerpt":{"rendered":"<p>Understanding domain name management and DNS configuration correctly is the first step to building a strong online presence for businesses. This article helps you grasp the basic knowledge to operate your website effectively.<\/p>","protected":false},"author":1,"featured_media":29416,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[70,1187],"tags":[1126,1069,680,1096,1068],"class_list":["post-29415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","category-xay-dung-thuong-hieu","tag-bao-mat-mang","tag-dns","tag-huong-dan-ky-thuat","tag-quan-tri-he-thong","tag-ten-mien"],"acf":[],"rankmath_keywords":{"primary":"","secondary":[""]},"yoast_keywords":{"primary":"","secondary":[]},"yoast_focuskw":"","rankmath_focuskw":"","seo_keywords":{"primary":"","secondary":[""]},"_links":{"self":[{"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/posts\/29415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/comments?post=29415"}],"version-history":[{"count":0,"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/posts\/29415\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/media\/29416"}],"wp:attachment":[{"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/media?parent=29415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/categories?post=29415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dps.media\/en\/wp-json\/wp\/v2\/tags?post=29415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}