Don’t Fear the DNS: Your Definitive Guide to DNS Records – the Internet’s Phonebook

TL:DR: Don’t fear DNS! It’s just the internet’s phonebook, translating website names into computer addresses and telling traffic where to go. Records like A, MX, and CNAME simply point direct traffic and email in the right direction. If you plan changes carefully, managing DNS is safe, easy, and essential for your online presence.

The term “DNS” often sounds technical, perhaps even a bit mysterious. For many business owners, marketing teams, and even agency staff, dealing with Domain Name System (DNS) records can feel intimidating, sparking confusion or apprehension, especially when website or email changes are involved. Yet, DNS is a fundamental component of the internet that many people rely on every single day, often without realizing it.¹

The goal of this guide is to lift the veil on DNS, explain its crucial role in simple terms, and demonstrate that it’s a manageable, essential part of establishing and maintaining your online presence.

DNS Records – The Internet’s “Phonebook”

At its core, the Domain Name System (DNS) serves as the internet’s phonebook.² This analogy helps understand the fundamental problem DNS solves. Humans find it easy to remember names, like yourbusiness.com or google.com. However, computers and web browsers navigate the internet using numerical Internet Protocol (IP) addresses. These addresses are strings of numbers (like 192.0.2.44 for the older IPv4 standard) or more complex alphanumeric strings (like 2400:cb00:2048:1::c629:d7a2 for the newer IPv6 standard).¹ Imagine trying to memorize a unique, long number for every website visited – it would be practically impossible.

DNS bridges this gap. Its primary function is to translate the human-friendly domain names entered into a web browser into the computer-friendly IP addresses required to locate and load internet resources. When a user types a domain name, a request is sent through the DNS system, which looks up the corresponding IP address and returns it to the browser, allowing the connection to be made. This even goes beyond just the website’s IP address. Different record types handle different tasks, such as:

• Linking the domain name to the web server’s IP address.
• Identifying the servers responsible for handling the domain’s email.
• Providing text-based information for domain verification purposes.
• Configuring email security policies to combat spam and phishing.
• Creating aliases or redirects for subdomains.⁶

In essence, DNS records contain the precise instructions that tell the internet’s systems how to handle various types of requests sent to a specific domain name.²⁶

This system wasn’t always in place. In the early days of the internet (before the 1980s), a simple text file named HOSTS.TXT was used to map names to IP addresses.⁵ However, as the internet rapidly grew, maintaining and distributing this single file became unmanageable. In the early 1980s, computer scientist Paul Mockapetris invented the DNS, providing a scalable and distributed solution that still forms the backbone of internet navigation today.⁴

While the phonebook analogy is a great starting point, it’s helpful to think of DNS as more than just a single, static book. It’s more like a vast, globally distributed network of phonebooks that are constantly being updated.³ Different authorities manage different parts of this network. Furthermore, to make things faster, computers and intermediate servers often keep temporary, local copies of recently looked-up addresses – a process called caching.¹ This is similar to keeping frequently called numbers on speed dial, avoiding the need to look them up in the main phonebook every time. This dynamic, distributed, and cached nature is key to understanding how DNS operates efficiently on a global scale and why changes sometimes take time to be reflected everywhere.

What is DNS and Why is it Vital for Your Business?

To reiterate, the Domain Name System (DNS) acts as the crucial translator, converting the website names people use (like www.youragency.com) into the numerical IP addresses computers understand (like 192.0.2.1).³ It’s often described as the “glue” that holds the internet together.⁴ Its proper functioning is vital for any business with an online presence.

Importance for Website Accessibility:

A business’s domain name serves as its digital address and a core part of its online identity. DNS is the system that ensures when a customer types that familiar domain name into their browser, they are correctly directed to the server hosting the actual website content.6 If the DNS information is incorrect or missing, the website becomes effectively invisible online. It’s like having the wrong street address listed for a physical store – customers simply won’t find it, and browsers will return errors.

Importance for Business Email:

Beyond the website, DNS plays an equally critical role in business email communication. When someone sends a message to a custom domain email address (e.g., [email protected]), the sending email system relies on specific DNS records, known as Mail Exchange, or MX records, to find the correct mail server responsible for receiving emails for that domain. If these MX records are not set up correctly, the business may fail to receive crucial emails from clients, potential leads, partners, or even internal communications, severely impacting operations.

Reliability and Professionalism:

A correctly configured and robust DNS setup ensures that a business’s website and online services remain consistently available to customers and prospects. DNS problems can lead to website unavailability, resulting in lost business opportunities and user frustration. Furthermore, using a custom domain email address (e.g., [email protected]) significantly enhances a brand’s professionalism compared to using generic addresses (like @gmail.com or @outlook.com). DNS is the technology that makes using these professional custom domain emails possible.

Meet the Most Common DNS Records (No Tech Degree Required!)

While the DNS system utilizes numerous types of records (around 90 exist ¹⁷), businesses typically only need to be familiar with a handful of the most common ones to manage their website and email effectively. Let’s break down the key players:

• A Record (Address Record):
  • This is the most basic and frequently used DNS record type.¹⁶ The “A” literally stands for Address.⁸
  • Function: Its job is to map a domain name (like youragency.com) or a subdomain (like blog.youragency.com) directly to the numerical IPv4 address of the server hosting the content (e.g., 66.147.224.236).¹⁶ This is the primary mechanism that allows web browsers to find and load a website when a user types in its name.²⁸
  • Analogy: Think of it as the main street address listed for a business in the phonebook.⁸
  • (Side Note: For the newer, longer IPv6 addresses, an equivalent record called the AAAA record is used.¹⁶)
• CNAME Record (Canonical Name Record):
  • CNAME stands for Canonical Name.³⁵
  • Function: This record acts like an alias or a nickname. Instead of pointing a domain or subdomain directly to an IP address, it points it to another domain name.¹⁶ The DNS system then looks up the target domain name to find its actual IP address (usually via an A record).
  • Common Uses: A very common use is for the www prefix, making www.youragency.com point to the main youragency.com domain.²⁹ It’s also frequently used to connect subdomains (like shop.youragency.com or newsletter.youragency.com) to services hosted by third-party platforms (e.g., Shopify, Mailchimp, Google Sites) while still using the business’s own branded domain name.²⁹
  • Analogy: It’s like having a secondary business name or a department name listed in the phonebook that directs callers back to the main business listing.³⁶
• MX Record (Mail Exchange Record):
  • Function: This record is exclusively for email. It specifies the mail server(s) responsible for receiving emails sent to addresses at a particular domain (e.g., [email protected]).⁶ If a business wants to receive email using its custom domain, correctly configured MX records are absolutely essential.²⁵
  • Priority: MX records include a priority number (e.g., 10, 20). Lower numbers indicate higher priority. This allows businesses to set up primary and backup mail servers. The sending server tries the highest priority server first, and if that fails, it tries the next one down the list.²⁵
  • Analogy: This entry specifies the exact post office branch (or multiple branches, ordered by preference) that handles incoming mail addressed to a specific business.²⁵
  • Important Note: MX records must point to a server hostname (like mail.yourprovider.com), which in turn has an A or AAAA record. They cannot point directly to an IP address ⁴⁴ and should not point to a CNAME record.²⁵
• TXT Record (Text Record):
  • Function: The TXT record is a versatile record type that allows domain administrators to associate arbitrary text strings with their domain within the DNS.¹⁶ While originally intended for human-readable notes, its primary use today is for storing machine-readable data for various verification and policy purposes.⁴⁷
  • Key Uses for Businesses:
    • Domain Ownership Verification: Many services (like Google Search Console, Microsoft 365, Facebook Business Manager) require adding a specific TXT record to prove control over a domain before granting access to certain features.²⁶
    • Email Security Policies: TXT records are the standard way to publish crucial email authentication policies like SPF, DKIM (often), and DMARC.¹⁹
    • Analogy: A general-purpose notes or instructions field within the phonebook entry, often used for specific verification codes or policy statements that other systems can read.
• SPF Record (Sender Policy Framework):
  • Function: SPF is an email authentication standard designed to prevent email spoofing. It is implemented by publishing a specific policy within a TXT record.¹⁹ This policy lists the mail servers and domains (identified by IP addresses or include mechanisms) that are explicitly authorized to send emails on behalf of that domain.¹⁶
  • Purpose: When a receiving mail server gets an email claiming to be from youragency.com, it checks the SPF record for youragency.com. If the sending server’s IP address isn’t on the authorized list, the email fails the SPF check, making it more likely to be marked as spam or rejected. This helps protect the domain’s reputation and prevents others from sending fraudulent emails using the domain’s name.¹⁸ It also improves the deliverability of legitimate emails.⁵⁴
  • Analogy: A security notice provided to all receiving post offices, listing the only mail delivery services officially authorized to send mail bearing a specific company’s return address.⁵⁴
• DKIM Record (DomainKeys Identified Mail):
  • Function: DKIM is another critical email authentication method that uses cryptographic signatures to verify email authenticity and integrity. Like SPF, the necessary information (the public key) is typically published within a DNS TXT record (though sometimes a CNAME record pointing to the key is used).¹⁹
  • Mechanism: It works using a pair of electronic keys: a private key kept secret by the sending mail server and a public key published in the DNS DKIM record. The sending server “signs” outgoing emails using the private key, creating a unique digital signature in the email header. Receiving servers fetch the public key from the DNS record and use it to verify the signature.⁵⁶
  • Purpose: A successful DKIM verification proves two things: 1) the email was actually sent by a server authorized by the domain owner, and 2) the important parts of the email (like the ‘From’ address and the message body) have not been altered or tampered with during transit.¹⁹ This further combats spoofing and phishing, enhances email deliverability, and protects the sender’s reputation.⁵⁶
  • Analogy: A unique, tamper-proof holographic seal applied to outgoing mail. The authenticity of the seal can be verified by anyone using a publicly available code listed in the phonebook.⁶²

It’s important to recognize that SPF and DKIM are email authentication protocols or policies, not distinct DNS record types like A or MX. They cleverly leverage the flexibility of the TXT record format (or occasionally CNAME for DKIM’s public key) to publish the data needed for verification.²⁰ Understanding this helps clarify that one might need to create or edit a TXT record to implement SPF or DKIM, rather than looking for a specific “SPF Record” type in their DNS management interface.

Finally, the business impact of email security records like SPF and DKIM cannot be overstated. These are not merely technical details. Failing to configure them correctly, or omitting them entirely, can directly harm a business. Legitimate emails, including marketing campaigns, client communications, invoices, and support responses, may be flagged as spam by receiving servers or rejected outright.²⁰ This damages the sender’s reputation, hinders vital business communication, disrupts operations, and can ultimately lead to lost revenue and opportunities.⁶¹ Therefore, ensuring these records are properly set up is not just an IT task but a business necessity for reliable communication.

Common DNS Records Summary

Record Type	Full Name	Simple Purpose	Analogy/Example Use
A	Address Record	Points a domain/subdomain to an IPv4 server address.	The main street address for your website.
CNAME	Canonical Name Record	Creates an alias, pointing a domain/subdomain to another domain name.	A nickname (www) pointing to the main business name; pointing a subdomain to Shopify.
MX	Mail Exchange Record	Directs incoming email for your domain to the correct mail server(s).	Specifies which post office handles your business mail.
TXT	Text Record	Stores text information; used for verification and email security policies.	A notes section for verification codes (Google/Microsoft) or policy statements.
SPF (via TXT)	Sender Policy Framework	Lists servers authorized to send email from your domain (prevents spoofing).	A list given to recipients identifying your official mail trucks.
DKIM (via TXT/CNAME)	DomainKeys Identified Mail	Adds a digital signature to emails to verify sender & integrity (prevents tampering).	A tamper-proof seal on your mail, verifiable with a public code.

Where Do You Manage These Records? Registrar vs. Hosting

A common point of confusion for non-technical users is figuring out where exactly they need to go to view or make changes to these DNS records. Do you log into the place where you bought the domain name, or the place where the website is hosted?

The answer depends entirely on where your domain’s nameservers are pointing.⁶⁷ Nameservers are the designated servers that hold the authoritative (official) DNS records for a domain.⁴ Think of them as the official keepers of your domain’s phonebook entries. To find out where to manage your DNS records, you need to know which nameservers your domain is currently using.

Here are the most common scenarios:

1. DNS Managed at the Domain Registrar: If a business purchased its domain name from Company X (the registrar) and is using Company X’s default nameservers (often something like ns1.companyX.com and ns2.companyX.com), then the DNS records (A, MX, CNAME, etc.) are typically managed through the control panel provided by Company X.⁶⁷ Many domain registrars offer basic DNS hosting services alongside domain registration.⁷⁰
2. DNS Managed at the Hosting Provider: If the business has website hosting with Company Y and has updated the domain’s nameservers at the registrar to point to Company Y’s nameservers (e.g., ns1.companyYhosting.com), then DNS management happens within Company Y’s hosting control panel (like cPanel, Plesk, or a proprietary interface).⁶⁷ Web hosting providers frequently bundle DNS hosting with their services.⁷⁰
3. DNS Managed at a Third-Party DNS Provider: For enhanced performance, reliability, or specific features (like advanced traffic management or security), a business might choose to use a specialized DNS hosting service, such as Cloudflare, DNS Made Easy, Amazon Route 53, or others.⁶⁹ In this setup, the domain’s nameservers at the registrar are pointed to the third-party provider’s nameservers, and all DNS record management takes place within that third-party provider’s dashboard.⁶⁷

To determine where DNS is managed for a specific domain:

• Log into the domain registrar account and check the current nameserver settings for the domain.
• Consult the website hosting provider’s documentation or support; they usually specify which nameservers to use if management should occur on their platform.
• Within the relevant control panel (registrar, hosting, or third-party DNS), look for sections labeled “DNS Management,” “Zone Editor,” “Manage DNS Records,” or similar terms.⁶⁷

It’s crucial to understand the distinction between a Domain Registrar and a DNS Host:

• The Registrar is the company where the domain name was purchased and is renewed annually. They manage the registration of the name itself.⁸
• The DNS Host is the provider whose nameservers are designated as authoritative for the domain. This is where the actual DNS records (A, MX, TXT, etc.) are stored and managed.⁷⁰ These two roles can be filled by the same company or by different companies.⁷⁰

While using the DNS hosting bundled with a registrar or web host is often convenient and sometimes free, it may not always be the optimal choice for a business.⁶⁹ Dedicated DNS hosting providers often invest heavily in global infrastructure (like Anycast networks, which route queries to the nearest server), offer faster update times, provide more robust security features (such as advanced protection against Distributed Denial of Service – DDoS – attacks), and allow for more sophisticated configurations.⁶⁹ For businesses where website performance, uptime, and security are critical, evaluating the quality of their DNS hosting and potentially using a specialized provider can be a strategic decision that impacts resilience and user experience.

“Why Do DNS Changes Take So Long?” Propagation and TTL Explained

One of the most common frustrations encountered when dealing with DNS is the delay that often occurs after making a change. A user might update an A record to point their website to a new server, or change MX records to switch email providers, but the change doesn’t seem to take effect immediately everywhere.⁷⁷ This delay is known as DNS propagation.⁷⁷

DNS propagation is the time it takes for updates made to DNS records on the authoritative nameservers to spread and be recognized across the internet’s vast, distributed network of DNS resolving servers.⁷⁸

The reason for this delay lies in caching. To make internet browsing faster and reduce the load on authoritative servers, DNS resolvers – the servers operated by Internet Service Providers (ISPs) or public services like Google DNS or OpenDNS that handle initial DNS lookups for users – temporarily store (cache) the answers they receive. Just like a web browser caches images to speed up page loading, these resolvers keep a local copy of DNS record information for a set period or time.⁸⁸

This period is determined by the Time To Live (TTL) value associated with each DNS record.⁴ The TTL is set by the domain administrator (usually in the DNS management interface) and is measured in seconds. It essentially tells any resolver caching that record how long it’s allowed to keep and reuse that information before it must discard it and query the authoritative nameserver again for potentially updated information.⁴ Common TTL values can range widely, from 300 seconds (5 minutes) to 3600 seconds (1 hour), 14400 seconds (4 hours), or even 86400 seconds (24 hours) or longer.⁴

The connection between TTL and propagation is direct: when a DNS record is changed (e.g., its IP address is updated), resolvers around the world that have cached the old version of that record will continue to serve the old information until the TTL expires.⁷⁸ Only after the TTL timer runs out will they reach out to the authoritative server and fetch the new, updated record. Therefore, the maximum time propagation should take is dictated by the TTL value that was set on the record before the change was made.⁸¹ If a record had a TTL of 1 hour, it could take up to an hour for all resolvers globally to reflect the update. Due to variations in caching behaviour and network paths, the commonly cited propagation window is typically anywhere from a few minutes up to 48 hours, and in rare cases, even 72 hours.²⁷

It’s helpful to understand that DNS propagation isn’t an active “push” where the authoritative server broadcasts the change outwards. Instead, it’s a decentralized, passive process. Millions of caching resolvers worldwide independently check their stored information against its TTL. When the TTL expires, they “pull” fresh data from the authoritative source the next time they receive a query for that record.⁸⁷ This pull-based model, reliant on individual cache expiry times, explains why updates aren’t instantaneous across the entire internet.

Choosing an appropriate TTL value involves a strategic trade-off.⁸⁰

• Low TTL (e.g., 5-10 minutes): This allows changes to propagate relatively quickly, minimizing the period of inconsistency when updates are made.⁷⁸ However, it forces resolvers to query the authoritative servers more frequently, which increases the load on those servers and might increase costs if the DNS provider charges per query.⁸²
• High TTL (e.g., 1 hour, 24 hours): This reduces the load on authoritative DNS servers and can speed up DNS lookups for users who frequently visit the site (as their local resolver likely has the information cached).⁸⁴ The downside is that any changes made to records with high TTLs will take significantly longer to fully propagate across the internet.⁸¹ The ideal TTL depends on the record’s purpose and how often it’s expected to change.⁸⁴ Records pointing to critical services undergoing migration might temporarily use very low TTLs, while stable records (like verification TXT records) can often use much higher values.

Addressing the “Downtime” Dread: DNS Changes & Potential Hiccups

The term “downtime” often associated with DNS changes can be alarming. However, in most cases involving planned DNS record updates, what users experience isn’t true downtime (where the service is completely unavailable) but rather a period of inconsistency.⁸³

Because DNS information is cached across countless servers worldwide, and these caches expire based on the TTL, updates don’t reach everyone simultaneously. During the propagation window, some users’ requests might hit a resolver that has already updated its cache with the new information, directing them to the new server or service. Other users might query a resolver still holding the old, cached information (until its TTL expires), sending them to the old location.⁸²

So, the service itself might be running perfectly fine in both the old and new locations, but different users might be accessing different versions depending on the state of the DNS cache they happen to use.⁸³ For a website migration, this could mean some visitors see the newly launched site while others still see the old one. For an email migration, some incoming emails might route to the new mail server while others temporarily go to the old one.

This period of inconsistency is a direct consequence of the DNS caching and TTL mechanisms previously discussed.⁸³ The length of this inconsistent state is primarily determined by the TTL value set on the record before the change was initiated.⁸⁸

For businesses, this inconsistency can lead to practical challenges: customer confusion if they see different website versions, potential data fragmentation if emails or form submissions land in two different systems, or a staggered and unpredictable rollout of new services.⁸³

Framing this phenomenon as temporary inconsistency due to the nature of distributed caching, rather than absolute downtime, can help manage expectations and reduce anxiety. It shifts the narrative from “the website is broken” to “the internet’s address books are gradually updating worldwide”.⁸³ While careful planning (discussed next) can significantly minimize the duration and impact of this inconsistency, it’s also important to set realistic expectations. Some propagation delay is often unavoidable.⁷⁸ Certain ISPs or recursive resolvers may choose to ignore very low TTL settings (e.g., less than 5 minutes, or sometimes even higher thresholds) to manage their own resources or as a defence against certain types of abuse (like the “fast flux DNS” techniques used by malware operators to rapidly change their server addresses ⁹⁴). This means that while lowering TTLs is the primary tool for speeding up changes, it may not always eliminate the propagation window entirely.⁷⁸

Managing DNS Safely: Best Practices for Peace of Mind

While the inherent nature of DNS propagation means changes aren’t instantaneous, following established best practices can make the process significantly smoother, minimize the period of inconsistency, and reduce the risk of errors or actual service disruptions.⁹⁵

Planning and Executing DNS Changes:

1. Prepare: Clearly identify the DNS records that need changing and meticulously verify the new values (IP addresses, hostnames, text strings, etc.) before proceeding. Typos in DNS records can lead to significant problems.¹⁹
2. Lower TTL (In Advance): This is arguably the most critical step for minimizing disruption. Well before making the actual change (ideally 24-48 hours, or at minimum, wait for the duration of the original TTL after lowering it), reduce the TTL value of the specific record(s) you intend to modify. Set it to a low value, commonly 300 seconds (5 minutes).⁸⁰ This ensures that once the change is made, resolvers worldwide will quickly discard the old cached information and seek the new record.
3. Wait for Low TTL to Propagate: After lowering the TTL, wait for a duration equivalent to the original TTL value. This step is crucial to allow the low TTL setting itself to propagate across caches before the actual record change is made.⁹⁵
4. Implement the Change: Make the necessary update to the DNS record (e.g., change the IP address in an A record, update MX priorities, switch nameservers). If changing nameservers, ensure the new DNS provider already has an identical and fully tested copy of all your DNS records before initiating the nameserver change at the registrar.⁹⁸
5. Verify Propagation: Do not rely solely on personal testing. Use external, online DNS propagation checker tools (like DNSChecker.org, whatsmydns.net, MxToolbox) to monitor how the change is spreading across different geographic locations and various DNS servers.⁷⁹ Test the functionality of the affected service (website loading, email delivery).
6. Wait for Full Propagation: Allow sufficient time for the change to propagate globally, based on the low TTL you set. During migrations (e.g., website host or email provider), keep the old service running concurrently with the new one throughout this period to avoid service interruptions for users hitting cached records.⁹⁸
7. Restore TTL: Once verification confirms the change is live globally and the service is functioning correctly on the new configuration, change the TTL value back to a higher, more standard duration (e.g., 3600 seconds/1 hour or more) to reduce unnecessary load on the authoritative DNS servers.⁹⁵
8. Decommission (If Applicable): After a safe waiting period post-propagation, decommission the old service (e.g., cancel the old hosting account) and remove any redundant DNS records from the previous provider if necessary.

General DNS Health and Security Best Practices:

• Maintain Backups: Regularly back up your DNS zone file or keep a documented copy of all your record configurations. Some providers might delete records immediately upon service cancellation, making recovery difficult without a backup.²⁹
• Secure Access: Treat the login credentials for your domain registrar and DNS hosting provider with high importance. Use strong, unique passwords and enable two-factor authentication (2FA or MFA) whenever available. Limit the number of individuals who have permission to modify DNS records.⁹⁶
• Implement Redundancy: For business-critical domains, avoid relying on a single DNS server or provider. Utilize secondary DNS servers, which act as backups holding copies of the primary server’s records.⁹⁶ Consider using multiple, diverse DNS providers for maximum resilience against provider-specific outages or attacks.¹⁰¹ This architectural approach significantly enhances business continuity if one part of the DNS infrastructure fails.
• Enable DNSSEC: If supported by your registrar and DNS host, enable DNSSEC (Domain Name System Security Extensions). DNSSEC adds cryptographic signatures to DNS data, allowing resolvers to verify that the information received is authentic and hasn’t been tampered with (e.g., via cache poisoning attacks).⁹⁶
• Monitor DNS: Utilize monitoring services to track the availability, performance, and correctness of your DNS resolution from various global locations.⁹⁶ Enable DNS query logging if available to help diagnose issues or detect anomalies.⁹⁶

By adopting these practices, businesses can navigate DNS changes and ongoing management with greater confidence, ensuring stability, security, and reliability for their essential online services.

Conclusion: DNS Demystified

Hopefully, this journey through the Domain Name System has transformed it from a daunting acronym into a understandable, essential component of the internet. We’ve seen that DNS acts as the indispensable phonebook, translating memorable domain names into the numerical IP addresses computers need. DNS records, like A, CNAME, MX, and TXT (including its use for SPF and DKIM), are the specific instructions within that phonebook, directing web traffic, routing emails, and verifying domain authenticity – all vital for a business’s online operations.

Understanding that changes take time to propagate due to the internet’s caching mechanisms (governed by TTL values) helps explain the temporary inconsistencies sometimes observed. More importantly, recognizing that these delays are manageable through careful planning and adherence to best practices – like lowering TTLs in advance and verifying changes – empowers businesses to make necessary updates without undue fear of disruption.

DNS doesn’t need to be a source of anxiety. With a foundational understanding of what it is, why it matters, and how to manage it safely, marketing teams, business owners, and clients can feel more confident navigating discussions about their websites, email systems, and overall online presence. A well-managed DNS is the bedrock of a reliable and professional digital footprint.

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Learn More

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