NSEC 查询
查询 NSEC 记录以验证 DNSSEC 否定响应与区域覆盖
NSEC (Next Secure) records provide authenticated denial of existence in DNSSEC by creating a chain that covers all names in a zone, proving that queried names don't exist.
域名查询
输入域名，查询其 NSEC 记录
NSEC Lookup
Query NSEC records to verify DNSSEC negative responses and zone coverage
NSEC (Next Secure) records provide authenticated denial of existence in DNSSEC by creating a chain that covers all names in a zone, proving that queried names don't exist.
Domain Lookup
Enter a domain name to query its NSEC records
NSEC Records
Next Secure records providing authenticated denial of existence