In line with WhoisXML API’s commitment to improving its service offerings, we released the following products and feature upgrades in Q3 and Q4 2023:

• “First seen” UNIX timestamp has been added to Threat Intelligence Data Feeds’ files: Subscribers of our Threat Intelligence Data Feeds can now reference the date and time when an indicator of compromise (IoC) was first detected. The new column has been added to these files:

• Malicious IPv4/IPv6 address data feed
• Malicious domain name data feed
• Malicious URL data feed
• Malicious file hash data feed
• Malicious IPv4/IPv6 ranges in CIDR notation data feed

With this additional data point, users can easily distinguish new IoCs that may still need to be added to their security systems. The new field also enables users to determine the length of time the IoC has been active, potentially providing insights into the threat actors’ tactics.

• Newly Registered Domains (NRD 2.0) Coverage increased by 89%: NRD 2.0 users can now enjoy broader and higher quality data coverage as a result of our development team’s efforts to continuously improve new domain activity tracking capabilities. The records in our NRD 2.0 daily files now contain up to 250,000+ newly added domains, 363,000+ newly dropped domains, 532,000+ newly updated domains, and 55,000+ newly discovered domains across thousands of TLDs.

• NRD 1.0 end-of-life is scheduled for 31 December 2024: Since an upgraded version with more comprehensive data coverage has become available, we have been actively migrating NRD 1.0 users to NRD 2.0. By 1 March 2024, we will stop providing customer support for NRD 1.0. We will then discontinue the product and no longer provide any related service file or update by 31 December 2024. NRD 1.0 users should contact their account managers as soon as possible to avoid service disruption.

• A new version of Email Verification API is now available: With the launch of the more stable and accurate Email Verification V3, we will discontinue Email Verification V2 by 30 April 2024. Our development team will stop providing support and updates by 31 January 2024. We encourage all users to migrate to Version 3 as early as now for a seamless transition.

• Website Categorization API upgraded to Version 3: We recently launched Website Categorization API V3, which uses an advanced website categorization model for more stable, reliable, and granular website classification. The new version has 84 granular categories, including Malware Sites, Gambling, Games, Spam URLs, and Confirmed Spam Sources. It also continues to include confidence levels in the results, with additional output fields, such as a website's creation date from its WHOIS records and its IP address's Autonomous System (AS) details.

• Threat Intelligence API and Threat Intelligence IoC Lookup have been launched: You can now retrieve threat details for any domain, URL, IP, CIDR number, or hash easily using our new Threat Intelligence API and Threat Intelligence IoC Lookup. Threat information includes the threat types and dates when the threats were first and last observed. The API version can be readily integrated into existing security solutions, while the IoC lookup tool provides instant threat intelligence even when you're on the go.

Stay tuned for more product and feature improvements in the coming quarters.