Introducing yWhois: A Modern Solution for IP, Domain, and ASN Lookups with RDAP

In today’s digital landscape, efficient and reliable access to domain and IP information is crucial. Recently, I revisited my yWhois project—an innovative tool designed to perform comprehensive lookups for IP addresses, domains, and Autonomous System Numbers (ASNs) using the RDAP protocol.

Since I last shared this project, I’ve implemented several key enhancements aimed at improving performance and stability. One notable challenge was encountering rate limiting when the site experienced high traffic volumes. To address this, I integrated multiple worker servers, which has significantly alleviated these issues and ensures smoother operation during peak times.

It’s somewhat surprising that the registrar’s RDAP server imposes such restrictive API usage limits, especially considering that RDAP is intended to serve as a modern, standardized replacement for the traditional WHOIS protocol. Despite this, I remain optimistic that ongoing improvements will make yWhois a more robust and accessible resource for network administrators, developers, and cybersecurity professionals alike.

Feel free to explore the latest version of yWhois at https://ywhois.com/. I look forward to seeing how this tool can assist your network investigations and domain management tasks.