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 there is not have
ANSWER SECTION.
No response has been received from the name server.
Can't get IP address of nameserver, etc.
