IPv6 Reverse DNS Zone Generator

High Performance Edition - Optimized for Large Scale Processing

Generate & Download IPv6 Reverse DNS Zones

Enter IPv6 prefix with CIDR notation. /64 = 8,888,888 records, /48 = 65,536 Ɨ 2,222 records
Domain name for PTR records. Will be used as: hostname.IPV6.example.com
Enter up to 5 slave DNS server IPs separated by commas. Supports both IPv4 and IPv6.
Example: 192.168.1.100,192.168.1.101,2001:db8::1
0/5 IPs
Enter up to 5 master DNS server IPs separated by commas. Supports both IPv4 and IPv6.
Example: 192.168.1.50,192.168.1.51,2001:db8::2
0/5 IPs
Performance Technical Information
  • /64 prefix: Generates 1 zone with 8,888,888 PTR records.
  • /48 prefix: Generates 65,536 zones with 2,222 records each.
  • Batch Processing: 15,000 record-oriented workload with memory optimization.
  • Compression: Level 9 for maximum ZIP compression.
  • Security: CSRF protection, input validation, rate limiting, hardened session cookie, and strict download endpoint.
  • Output: BIND9 compatible zone files with named.conf.local configuration.
  • Multi-Server: Support up to 5 IPs for Master/Slave configuration.
  • Input History: Draft and history are saved locally in this browser only; they are never written to the server database.