Some Internet protocols require the use of SRV records in order to function. h header defines DNS_RECORD as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE Feb 23, 2024 · MX Records (Mail Exchange Records) are a type of DNS (Domain Name System) record used to specify the mail servers responsible for receiving email on behalf of a domain. May 9, 2024 · An NS Record (Name Server Record) is a DNS record type that specifies the authoritative name servers responsible for a domain. BOOK FREE DEMO. Almost all domains rely on multiple nameservers to increase reliability: if one nameserver goes down or is unavailable, DNS queries can go to another one. On its own, the standard email-sending protocol ( SMTP A DMARC record stores a domain's DMARC policy. MX records specify the mail server responsible for accepting email messages on behalf of a domain name. For more background about different types of DNS records, refer to the Learning Center . 1 for 1. Also, DNS records are stored in text files (zone files) on the authoritative DNS server. A Certificate Authority Authorization (CAA) DNS record specifies which certificate authorities (CAs) are allowed to issue certificates for a domain. Click EDIT to save changes. There are three possible options for where you'll manage your DNS: Your domain is registered with GoDaddy and is using our nameservers: you'll manage DNS PTR records are used in reverse DNS lookups. A nameserver is a type of DNS server. cluster-domain. Advanced DNS Manager is for advanced users only. DNS records contain important information about the domain’s IP address and request handling, thus serving as DNS servers’ instructions. netlify. Jul 11, 2024 · For details, see RFC 1034. Fill in the required fields in the pop-up window that appears. Depending on the query, client or application, different information is required. These pointers are used in several ways, including to help identify hosts and services on the Internet, as well as to validate email addresses. 0. Use these steps to list all domain controllers for a specific domain. Specify a synchronization mechanism between a child and a parent DNS zone. DNS query to Authoritative DYN DNS Server The TTL is a value in a DNS record that determines the number of seconds before subsequent changes to the record go into effect. Typically there is one primary nameserver Oct 17, 2016 · DNS records act as instructions for the DNS server, so it knows which domain names each IP address is associated with. AAAA record: contains the IPv6 address info of the hostname. Each of your domain's DNS records, such as an MX record, CNAME record, and so on, has a TTL value. It is designed to find IP addresses and deliver extensive information on records such as A, MX, NS, SOA, and TXT. MX Records prioritize mail servers A Gentle Introduction to DNSSEC. Every website is identified by a number, an IP address; computers read that. Then we query each name server to make sure your DNS Servers all respond, measure their performance and audit the results against common best practices. Microsoft Entra Domain Services includes a Domain Name System (DNS) server that provides name resolution for the managed domain. Jan 29, 2024 · Note: Because A and AAAA records are not created for Pod names, hostname is required for the Pod's A or AAAA record to be created. This set includes a private and public ZSK. ad. DNS zone files start with two mandatory records: the global time to live (TTL)—which indicates how records should be stored in the local DNS cache—and the start of authority (SOA record)—which specifies the primary authoritative name server for the DNS zone. Of the many DNS records that can be modified, nameservers are one of the most important entries. Enter interface ip set dns <interface_name> static <DNS_IP_address>. 9% of all incoming queries. If the alias target resolves to a resource record set (RRSet) with multiple addresses, Cloud DNS returns all of the records but randomizes their order before returning the synthesized address record. Another notation is also possible: Mar 5, 2019 · 34. The DNS tools try to simplify the UI. A galaxy full off DNS records. Sep 25, 2023 · The recursive DNS server queries the authoritative DNS server for “example. Then click “create” or “add” a new record, and select CNAME. When building a DNS_RECORD list as an input argument for the various DNS update routines found in the DNS API, all flags in the DNS_RECORD structure should be set to zero. May 9, 2024 · In the vast landscape of DNS (Domain Name System), CNAME records play a crucial role in simplifying domain management. Note down its name. SRV records are used for service discovery, load balancing, redundancy and failover, optimization DNS data can be cached in a variety of locations, each of which will store DNS records for a set amount of time determined by a time-to-live (TTL). So when you want to know the mail server of some email address, you can perform a DNS lookup that queries the MX records. xyz DNS zone page, select Record sets and then select + Add Before you start using Dynamic DNS on a particular host, you need to set up an A record for it. If the name for a domain (or zone) is "example. xyz DNS zone. May 11, 2020 · SOA Record: this record contains administrative information about the one, including the email address of the administrator. The CAA-specific information above is the 0 issue "letsencrypt. Yeah, much of that is up to the implementation of the DNS tool. The DNS Check test will run a comprehensive DNS Report for your domain. However, as soon as you change NS records to point somewhere else any DNS records added with the domain registrar will be ignored. Mar 28, 2023 · Every DNS record has a type. Or, for example, you can keep your Network Solutions Web site, but use a different ABOUT DNS Check. _tcp. Jun 6, 2022 · Forward DNS Lookup: This is a kind of DNS request where the user enters a domain name, and the DNS uses it to find the IP address corresponding to that domain. Let’s take an in-depth look at the different types of DNS records. It tells DNS resolvers which servers to contact when it's looking for DNS records for that domain name. Jul 5, 2022 · Simply put, Domain Name System (DNS) is the phone book of the internet. 1, 2, 3, etc. Find the section called "DNS Management" or "DNS Settings. When an email is sent to an address at a specific domain, the sender’s email server looks up the MX records for that domain to determine where to deliver A Sender Policy Framework (SPF) is a DNS record, part of a domain’s DNS zone, that declares which domains and hosts can or cannot send emails on behalf of a domain. Manage DNS records. Select DNS Record for Propagation Status Check. ️Click the link to test out 10Web's AI-Powered WordPress Platform for FREE - No Credit Card Required: https://10web. Depending on your provider, leave the host field empty or enter @. activedirectorypro. Add preset DNS records for email, domain forwarding, and other services. io/?utm_source=youtube. com” is often a Dynamic DNS (DYN) server that contains the specific DNS records for the domain, such as A records (for IP addresses), MX records (for mail servers), etc. It is commonly used for websites to point a domain or a subdomain to a specific IPv4 address. Figure 1 shows that the HTTPS record type was the third most common query type, representing 3. Most DNS records types are used in "forward lookups". If there are domain name aliases, such as the commonly used "www" preceding the domain name, these will also be listed in the DNS record. A DNS PTR record retrieves the domain name associated with an IP address. For example, a DNS record of type MX contains the location of a mail exchange server. To create an 'A' record: In the Azure portal, under Resources, open the contoso. hover. How to: Learn how to use Cloudflare DNS to manage your DNS records. Browse to the zone name, either a forward lookup zone or a reverse lookup zone, and see the records inside that zone. Add an ALIAS, ANAME, or flattened CNAME record. Choose the record type as A (Address). A Pod with no hostname but with subdomain will only create the A or AAAA record for the headless Service (busybox-subdomain. Get more advanced DNS options with our Premium DNS option. May 9, 2018 · Their default NS records are: ns1. This is determined by where your nameservers are pointing. Then, scroll down till you see the TXT records and click on the 3 dots on the right. A DNS lookup is done directly against the root servers (or TLD Servers). com with your domain name). To set up a TXT record, log in to your DNS provider’s control panel and add a new TXT record. com+&utm_medium=O Jun 10, 2024 · Next, DNS records are created for your domain inside the DNS zone. Hint: if you administer a zone, make sure there’s a valid email address here, so folks can get in touch with you if needed. SOA record: This record stores important information about the DNS zone (your domain). DNS Lookup is a web based DNS client that queries DNS records for a given domain name. Make the necessary changes in the required fields. " TTL: Choose the desired time-to-live value. Add / Edit / Delete. To Add a New Record: Click the + ADD RECORD button. Each zone must have an Sep 8, 2023 · Find your DNS provider’s DNS record settings for your apex domain, such as petsofnetlify. Learn what a DNS A record is, how it points to the IP address of a domain, and how it is used for website lookups and DNSBL. Apr 12, 2024 · DNS records. Next, type _ldap. There are many DNS record types, each with their own purpose in denoting how a query should be treated. The domain name you create the alias must not be an IP address. This is exactly the opposite of what an A record does. This DNS server includes built-in DNS records and updates for the key components that allow the service to run. You'll see the @ when you work with the DNS files directly, but you'll rarely see it in the various DNS tools. You can use the domain registrars authoritative nameservers to add other DNS records such as a CNAME or A record. These digital signatures are stored in DNS name servers alongside common record types like A, AAAA, MX, CNAME, etc. , www, blog ). You can do it in the following way: 1. Jul 19, 2022 · Look for the interface that you want to change the DNS server for. 2. By NsLookup. Find out how to manage A records with Cloudflare and see examples of A records. Jul 17, 2020 · DNS records also have Values, which store the actual data for the record. Enter the hostname or subdomain you want to redirect in the right field. DNS records exist as text-based files known as “zone files” written in DNS syntax. They can then ask the server where to go to find your website (A record) or email (MX record), for example. DNS AAAA records are exactly like DNS A records, except that they store a domain's IPv6 address instead of its IPv4 address. DMARC records are stored in the Domain Name System (DNS) as DNS TXT records. Jan 30, 2024 · Here are other types of DNS Records and their uses: AAAA Record: The AAAA record is used in the DNS to map a domain name to the IP address of a computer hosting that domain’s services, specifically for IPv6 addresses. First, login to your Domain. In-depth details on common DNS record types. DNS records associate a domain with a web-based service. If not, it passes the This record is used to associate text with a domain. Jun 15, 2023 · An AAAA Record in DNS is a way to tell the internet where to find your website using an IPv6 address. The supported record types section below provides detailed configuration instructions for each type. " In the GUI for a Microsoft Windows Server DNS Service, this is (or at least has been for a long time) called "Same as parent folder". If a recursive DNS has the DNS reference cached, or stored for a period of time, then it answers the DNS query by providing the source or IP information. These servers handle all requests for that domain and provide the correct IP addresses through other DNS records like A and AAAA. Unlike the more common A record, which maps to IPv4 addresses, AAAA records ensure compatibility and connectivity in networks Apr 13, 2024 · The actual record responsible for that is called DNS pointer record, or PTR for short. Knowing how to see Aug 10, 2022 · Figure 1 — The six most popular query types received by Google Public DNS on 1 June 2022. This type defines what the content of the record means. Reverse Lookup: This is the exact opposite of a Forward DNS Lookup. It involves a DNS record on the internet ( IN) and a type A record ( A ). Select Domain List from the left sidebar and click on the Manage button next to your domain name: 3. Once the resolver receives the request from the client, the resolver then actually behaves as a client itself, querying the other three types of DNS servers in Apr 13, 2024 · The SRV record is a resource record in DNS and it gives details about a particular service. Records for the zone are listed on the Zone details page. Save/Update. It is made up of three parts: flags (0), tags (issue), and values ("letsencrypt. Standards from the Internet Engineering Task Force (IETF) suggest that every domain should be capable of reverse DNS Dec 18, 2022 · Nslookup domain controller. Alternative notations of IPv4 addresses ( 1. Jun 13, 2023 · A client can store the record for 12,879 seconds (around three and a half hours) in the cache before the information must again be requested from the DNS server. This is what tells internet traffic where to go in order to access a given domain name. These are the types of records you need to modify when you want to delegate a domain to a DNS provider. NS record: This record is used to delegate a subzone to a set of name servers. For example, one of the IP addresses for Google is 172. Use these records to identify which nameservers you should use if your domain is not registered with GoDaddy, but you want to manage your DNS with us. Flags are an integer which indicates how a CA should handle tags it doesn’t understand. A DNS TXT (“text”) record lets a domain administrator enter arbitrary text into the Domain Name System (DNS). To modify or delete a record, open the record’s More menu. Each DNSSEC zone is assigned a set of zone signing keys (ZSK). A CNAME record is used in lieu of an A record, when a domain or subdomain is an alias of another domain. Normally the name used for a DNS record indicates everything before the Nov 26, 2023 · Open the DNS management console to administer DNS. What are DNS record types? DNS record types are records that provide important information about a hostname or domain. Point the record to Netlify’s load balancer at: apex-loadbalancer. They serve as a record and set of commands on how to handle DNS queries. Click the zone name whose record set you want to delete. RFC 7477. Sign in to your Namecheap account. This is what allows different organizations to own different domain names. my-namespace. com to IP addresses like 192. The DNS lookup tool lets you perform a DNS lookup for any domain name on the below record types. A Record Lookup - Address or IPv4 DNS records, these store IP addresses for domain names. com to the web server where the example Aug 18, 2022 · A DNS PTR record is a pointer to the IP address of a domain name. Click on the Edit button. Select the DNS record whose propagation status you would like to check. From the command prompt type nslookup and press enter. A new address record, known as an 'A' record, is created to resolve a host name to an IPv4 address. This guide introduces basic DNS concepts and the different types of DNS records. svc. Read about them here. While A and AAAA records map FQDNs to IP addresses, PTR records do the opposite, mapping IP addresses to domain names. A Records: Also known as an address record, this type of DNS record simply associates a domain name with a specific IP address. It’s the system that converts website domain names (hostnames) into numerical values (IP address) so they can be found and Find the record you want to modify under Manage Advanced DNS Records. This means that an AAAA record with content fe80::0:0:1 is stored and returned as fe80::1, for example. ", then an @ record indicates that the name for the DNS record is also "example. At the top of the contoso. 2. Modern web browsers are designed by default to cache DNS records for a set amount of time. This is because nameservers tell the world where DNS records for your domain are located. The DNSKEY record contains a public signing key, and the DS record contains a hash* of a DNSKEY record. Most other DNS records only specify a server or an IP address, but SRV records include a port at that IP address as well. It does this by means of a "CAA" Domain Name System (DNS) resource record . Reference: Check information about record types, status and additional options. In the Google Cloud console, go to the Cloud DNS page. ), ip address(es), port number, and public keys (all optional) - saving the browser from doing a number of DNS lookups and other protocol negotiation steps. AAAA Record in DNS makes surfing the internet faster with IPv6, but setting it up can be tricky because IPv6 addresses are long. Like a number of other DNS record types, the original DNS Domains Help. org" portion. example), pointing to the Pods' IP addresses. Domain Name System, or DNS, converts domain names into numbers, called IP addresses. Click the three-dotted icon. DNS records also have a Time-To-Live (TTL) value, which controls how long they can be cached for. 217. Child-to-Parent Synchronization. The most common types of records stored in the DNS database are for start of authority ( SOA ), IP addresses ( A and AAAA ), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS Manage your DNS records (A, MX, CNAME, TXT and SRV Records) for individual services. Some records are required, such as the A record. By checking its associated signature, you can verify that a requested DNS record comes from May 15, 2024 · DNS records, or Domain Name System records, are entries within the DNS, which is a system that associates domain names with various types of information associated with those names. In this blog, we'll explore CNAME records in detail, their role in DNS, and how to use them effectively. They also contain other data, including the domain name's name server and mail server information. A DNS TXT record can contain almost any text a domain administrator wants to associate with their domain. A reverse DNS lookup is a DNS query for the domain name associated with a given IP address. We will show you how to add a TXT record to your DNS records settings using Domain. Sep 8, 2023 · A DNS record is an entry in a zone used by a DNS server. Here are some common types of DNS records and when you might use them: A Record: Maps a domain or subdomain to an IPv4 address. Usually, this is just used to point the DNS record to a specific IP address or another domain name. One of the ways DNS TXT records are used is to store DMARC policies. Run interface ip show config again to check that the DNS server has been updated. DNSSEC creates a secure domain name system by adding cryptographic signatures to existing DNS records. Bằng cách sử dụng DNS records, bạn có thể quản lý chung nhiều bản ghi DNS và dữ What DNS records are required to configure web hosting for a subdomain? 0. Jul 29, 2009 · The Domain Name System (DNS) is the Internet’s address book. DNS records cung cấp một cách tiếp cận duy nhất để quản lý dữ liệu DNS, DHCP và IPAM. This allows you to keep some services active with Network Solutions, such as your e-mail, but host your Web site elsewhere. com and press enter. A DNS forward lookup maps a DNS name to an IP address or another piece of DNS data. Other important Resource Record (RR) types are PR, NS, SRV, and MX. Jul 31, 2018 · A PTR (pointer) record, also called a reverse DNS record, resolves an IP address to a domain name. g. org"). DNS records help communicate information about your domain to visitors and other web services. Nov 25, 2023 · DNS-Lookup is a tool for performing deep DNS record analysis, offering in-depth details about standard DNS record types. Notably, the sixth most common query type was 65521, a ‘private’ experimental record type used by Chrome known as ‘INTEGRITY’. For many of these tasks, you can use a preset to enter the information correctly. Note The windns. dns records, dns record cheat sheet, aname record, cname record, aaaa record, alias record, a record, txt record, mx record. When web browsers look for Google, they look for 172. TXT records were initially created for the purpose of including important notices Common DNS records. There are several different types of DNS records, but in most cases, only 4 or 5 types of DNS records are used: A records: Used to point a domain or a subdomain at an IPv4 address. Jul 7, 2022 · An authoritative DNS server is the server that stores the DNS records for a domain name and where any modifications are made to the DNS records for that domain name. Reverse zones are the ideal location for PTR records. Practically, this public record can contain two parts – a list of authorized domains and a list of forbidden senders. Add or Modify an AAAA Record: Name: Enter the domain or subdomain (e. These records provide important and relevant details about domains and hostnames. AAAA Record Lookup - Address v6 or IPv6 DNS records, same as A records but store IPv6 IP addresses. Then type set type=SRV and press enter. Deep DNS lookup of any URL. 62. Alias of one name to another: the DNS lookup will continue by retrying the lookup with the new name. Go to Cloud DNS. It maps an IP address to a hostname. The DNS record is then transmitted to the recursive DNS server, where a local copy is cached for future queries and later sent back to the originating client making the request May 22, 2024 · To create a record, select the record type below the heading, fill in the fields required for that record type, and then click Create record. These records require domain authority and can’t exist in the same zone as other DNS record types. It shows all the DNS records for a website, such as A, AAAA, CNAME, TXT, MX, NS, SOA and more, and allows you to select from different DNS servers. 228. All CNAME records must point to a domain, never to an IP address. The PTR or "pointer" DNS record type maps an IP address to a domain name in the DNS. . Next steps. Jul 12, 2023 · DNS records are stored in zone files and are used for translating domain names to IP addresses . 1. Browser DNS caching. The entries in this file have the following structure: The name field contains a fully qualified domain name, the alias discussed earlier. Mar 17, 2022 · DNS record là một trong những thuật ngữ quan trọng mà hầu hết những người học về IT đều biết đến. DNS records are essentially instructions created by and stored on DNS servers in what is called a Zone File. Setting predefined TTL for DNS 'A' Records on Windows DNS Server. 228, which they find in the Google Name Server databases. To set up an AAAA record, go to your DNS settings, create a new record with the AAAA record type, enter your What is DNS PTR (Pointer) Record? A PTR record, known as a pointer record or reverse DNS record, is the type of Domain Name System (DNS) record used to store the domain or hostname for an IP address. Common DNS records are the following: A record. They play a crucial role in the email delivery process, directing email to the correct server based on the domain part of an email address. A record's current TTL determines how long it will take any change you make now to go into effect. This record reduces the chance of unauthorized certificate issuance and promotes standardization across your organization. com. Go to the DNS settings and locate the DNS records. PTR records are mainly used to check if a server name is actually associated with the IP address from where a connection was initiated. You will see the record type next to the record “Name” in the DNS Manager. io. The resource records are physical text files written in DNS syntax and stored inside zone files. Hot Network Questions A DNS name server is a server that stores the DNS records for a domain; a DNS name server responds with answers to queries against its database. The DNS system maintains these records, which help link the domain name to an IP address. From your messages it sounds like you have it working one way but not another so I recommend going with the way that it does work. Next, click the blue Add DNS Record button. Nov 4, 2020 · The host, IN, and record type (CAA) are common DNS fields. TXT records are typically used to verify domain ownership, authenticate email senders, and provide other types of information. PTR records are used in two main ways: Mar 28, 2023 · The NS or “name server” DNS record type is used to specify the authoritative name servers for a domain. This guide will cover the following topics: DNS Certification Authority Authorization ( CAA) is an Internet security policy mechanism that allows domain name holders to indicate to certificate authorities whether they are authorized to issue digital certificates for a particular domain name. Click Delete record set. This is the rule used to point a domain like example. Whether you're an IT professional or a website owner, understanding CNAME records is key to efficient DNS administration. Input the below details: The subdomain representing the alias for your primary domain. Dec 1, 2021 · A DNS record, also known as a resource record (RR), maps a domain to an IP address. DNS records are the information a query seeks. A recursive DNS service acts like a hotel concierge: while it doesn't own any DNS records, it acts as an intermediary who can get the DNS information on your behalf. High-Performance Edge uses a different load balancer. 1, for example) are not supported for Mar 26, 2024 · Access your DNS provider's control panel or management interface. The DNS recursor (also referred to as the DNS resolver) is a server that receives the query from the DNS client, and then interacts with other DNS servers to hunt down the correct IP. This is an advanced custom DNS record. (Note that a DMARC record is a DNS TXT record A sender policy framework (SPF) record is a type of DNS TXT record that lists all the servers authorized to send emails from a particular domain. ns2. Click on the Advanced DNS tab, then find the Host records section and Jul 5, 2023 · Common DNS Record Types. RFC 1035 [1] Canonical name record. Jul 10, 2024 · The Cloud DNS name servers use Google's available recursive resolvers to resolve alias records. This accomplishes the opposite of the more commonly used forward DNS lookup, in which the DNS system is queried to return an IP address. How and where you add, edit or delete your DNS records depends on where your DNS is hosted. 14. The DNS system is split into zones, each managed by a DNS server that keeps zone-related records in a zone. Jul 6, 2022 · Login to the DNS provider’s control panel. One of the important differences between IPv6 and IPv4 is that IPv6 addresses A and AAAA records map a domain name to one or multiple IPv4 or IPv6 address (es). Dec 11, 2023 · Add CAA records. The @ sign identifies "this What is a DNS AAAA record? DNS AAAA records match a domain name to an IPv6 address. PTR records do the opposite. Create conditional forwarders. Some of the most common forms of syntax are highlighted below: “A” This record refers to the actual IP address For the implementation of these cryptographic signatures, two new DNS record types were created: DNSKEY and DS. It is the server that stores all DNS records for a domain, including A records, MX records, or CNAME records. com account and click on Manage, then on the next page click on DNS and Nameservers. 6. HTTPS-records allows browsers to efficiently obtain complete instructions for accessing a web-site for a domain name - including supported protocols (HTTP/1. When a user searches a domain name or URL or takes action related to a domain name in a web browser, this is the beginning of a DNS query. 8 or 0123:4567:89ab:cdef:0123:4567:89ab:cdef. Mar 28, 2023 · Copy article link Updated March 28, 2023. These records are used to facilitate internet applications to locate and address various services using domain names. NS record: Contains information about your nameservers. The domain is resolved to an IP address. May 9, 2024 · Navigate to the DNS management page. These records include the current IP address for a domain. IP Address: Enter the server's IPv6 address. In Windows Server 2012 R2, DNS record type can be seen in the DNS Manager. After the two primary records, a zone file can contain several other record types Feb 2, 2024 · DNS Records. Imagine a scavenger hunt where each clue points to another clue, and the final clue Forward DNS and Reverse DNS (A and PTR) The Address (A) record associates a domain name or subdomain with an IP address, which is the primary purpose of the DNS system. ” The authoritative DNS server for “example. CAA Record Lookup - Certificate Authority Authorization DNS Aug 17, 2022 · The DNS record that identifies an email server is the “Mail Exchange” (MX) record. DNS records contain a lot of different syntax and commands for how the server should respond to the request. Type: Select "AAAA. The content of a DNS record file is a string with special commands that the DNS A "canonical name" (CNAME) record points from an alias domain to a "canonical" domain. CSYNC. The DNS "service" (SRV) record specifies a host and port for specific services such as voice over IP (VoIP), instant messaging, and so on. Next to the record that you want to delete, select the checkbox. The type field contains the record type 4 days ago · Click DNS. IPv6 is the latest version of the Internet Protocol (IP). Apr 14, 2024 · A TXT record is a type of DNS record that provides additional information about a domain. (replace ad. Log in using your account details. Here, the user already has the IP address, and it is used to find out the domain name associated with this IP. These records include the following fields: to store DNS records. An SRV record consists of several components: the service name, protocol, server domain name, priority, weight, port number, and target server information. 5. " Look for an option to add a new record. DNS directs web traffic to your Linode and email to your inbox by mapping memorable domain names like example. Certain domain tasks, like setting up MX records for a third-party email provider or setting up domain forwarding, require specific records. Click on the drop-down menu right next to the search bar and choose any of the following records: A record: contains the IPv4 address info of the hostname. Understanding Different Types of Record in DNS Server. This makes it the opposite of the ‘A’ record (which provides the IP address linked to a domain name). DNS (Domain Name System) records serve various purposes and are used to manage different aspects of domain configurations. The browser uses DNS PTR records to perform DNS lookups. PTR records, referred to as "reverse DNS" records, are used in IP reverse lookup. This is called a DNS reverse lookup. mj zj jc bj vy fx qu rg ub ec