บริการตรวจสอบข้อมูล DNS
ตัวอย่าง www.thnic.co.th
ข้อมูลเนมเซิฟเวอร์
Description
A response has been received from the name server.
A response has been received from the name server, but doesn't have
ANSWER SECTION.
No response has been received from the name server.
Can't get IP address of nameserver, etc.
