Extending the WhoisXML API DNS Database: Understanding PTR and AAAA Record Types

More complete and diverse DNS records database for better transparency and security on the Internet.

LOS ANGELES, CALIFORNIA, USA, October 27, 2022 /EINPresswire.com/ — New DNS records have been added to the WhoisXML API DNS database. AAAA and PTR records now complement six existing DNS record types provided by the company (i.e. A, MX, NS, TXT, CNAME, and SOA records).

DNS records are updated daily, ensuring the database is up-to-date and up-to-date with today’s cybersecurity challenges. Security teams can glean insights from contextual and relevant threat information, allowing them to effectively map malicious cyber infrastructure.

Types of recordings available and how they help improve security

Eight types of DNS records are now available through the WhoisXML API DNS database. These are briefly described below.

A record
An A record maps a domain name to its corresponding IPv4 address. As such, it helps security teams trace the origin of a malicious domain. For example, they can determine a malware’s Internet Service Provider (ISP), location, and other network details by looking at the A record of the command and control (C&C) server domain.

AAAA registration
AAAA records serve a similar function to A records, except they are specifically for domains that resolve to IPv6 addresses. Adding this type of record allows the DNS database to give security teams greater visibility as more entities move from IPv4 to IPv6 addresses.

NS Registration
NS records are crucial in the DNS lookup process because they direct user requests to a domain’s authoritative server. Constant monitoring of an entity’s NS records helps ensure that no unauthorized changes are made and that their domains are not associated with malicious nameservers. Additionally, checking NS records also helps ensure that domains using malicious nameservers are quickly detected.

MX record
MX files can be used to assess the legitimacy and trustworthiness of an email address. For example, email security applications could learn to block email domains associated with a malicious MX server.

CNAME record
Subdomain takeovers and some phishing methods can be performed through CNAME cloaking. Monitoring this type of record helps prevent these attacks, especially since multiple domains and subdomains can be configured to point to a single web page.

SOA registration
SOA files contain a domain’s administrative settings, such as retry intervals, time to live (TTL), and domain administrator email address. Tracking this type of record is crucial, as it helps ensure industry-standard parameters are being met.

TXT record
TXT records are widely used to verify domain ownership and prevent spam. Thus, organizations need to ensure that the correct TXT files are stored. At the same time, they also need to be careful about the details they provide in TXT records, as hackers can extract data from files via DNS tunneling.

PTR record
PTR records are reverse records for an IP address, allowing users to map it to domain names. Essentially, it does the opposite of A and AAAA records. Monitoring PTR records allows administrators to log domain names instead of IP addresses. But the most important use of PTR records is for anti-spam and mail server checking.

Over a decade of monitoring and storing DNS lookup data has enabled the WhoisXML API to offer a comprehensive and up-to-date repository of historical DNS records. The information collected in the DNS database has helped countless security teams map and detect malicious infrastructure.

The DNS database can be downloaded in CSV format via Secure Hypertext Transfer Protocol (HTTPS) or File Transfer Protocol (FTP).

The database is continually updated and improved as part of the company’s commitment to a safer and more secure Internet.

If you are interested in DNS Database Download Service, welcome to contact the team.

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