DNS audit for zonemaster.cn created on 2026-03-06 05:14:11

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1. Name servers

Name servers listed at the parent server ns.cernet.net:

ns1.22.cn
ns2.22.cn

Result: 2 name servers found at the parent server (set at the domain provider).
Recommendation: Everything is okay. There is more than one name server added to zonemaster.cn.

2. NS records

NS records returned by each name server configured for the domain name

Frankfurt, DE San Francisco, US Johannesburg, ZA Singapore

ns1.22.cn [218.98.111.136] (293ms):
ns1.22.cn
ns2.22.cn

ns1.22.cn [61.158.128.10] (204ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [211.99.99.61] (250ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [183.253.57.207] (270ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [1.193.216.203] (263ms):
ns1.22.cn
ns2.22.cn

ns1.22.cn [218.98.111.136] (169ms):
ns1.22.cn
ns2.22.cn

ns1.22.cn [61.158.128.10] (180ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [183.253.57.207] (184ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [211.99.99.61] (155ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [1.193.216.203] (171ms):
ns1.22.cn
ns2.22.cn

ns1.22.cn [218.98.111.136] (396ms):
ns1.22.cn
ns2.22.cn

ns1.22.cn [61.158.128.10] (332ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [183.253.57.207] (344ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [1.193.216.203] (332ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [211.99.99.61] (432ms):
ns1.22.cn
ns2.22.cn

ns1.22.cn [61.158.128.10] (318ms):
ns1.22.cn
ns2.22.cn

ns1.22.cn [218.98.111.136] (317ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [211.99.99.61] (339ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [1.193.216.203] (345ms):
ns1.22.cn
ns2.22.cn

ns2.22.cn [183.253.57.207] (256ms):
ns1.22.cn
ns2.22.cn

Result: The NS records returned by the DNS servers are the same as the name servers set at the parent server.
Recommendation: It is not required to do any changes. All name servers are synchronized.

3. SOA record

SOA record returned by each name server configured for the domain name

Frankfurt, DE

ns1.22.cn [61.158.128.10] (220ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns1.22.cn [218.98.111.136] (255ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [211.99.99.61] (244ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [183.253.57.207] (265ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [1.193.216.203] (287ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

San Francisco, US

ns1.22.cn [218.98.111.136] (162ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns1.22.cn [61.158.128.10] (181ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [211.99.99.61] (163ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [183.253.57.207] (186ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [1.193.216.203] (170ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

Johannesburg, ZA

ns1.22.cn [61.158.128.10] (376ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns1.22.cn [218.98.111.136] (392ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [1.193.216.203] (344ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [183.253.57.207] (344ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [211.99.99.61] (392ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

Singapore

ns1.22.cn [218.98.111.136] (331ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns1.22.cn [61.158.128.10] (316ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [183.253.57.207] (219ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [211.99.99.61] (337ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

ns2.22.cn [1.193.216.203] (351ms):
ns1.22.cn. dnsadmin.22.cn. 1761595282 3600 300 1209600 1800

Result: The SOA record returned by the name servers is the same on all of them.
Recommendation: It is not required to do any changes. The name servers are synchronized.

4. A record distribution by location for zonemaster.cn

Shows how the name servers respond to requests for zonemaster.cn

Frankfurt, DE San Francisco, US Johannesburg, ZA Singapore

ns1.22.cn [218.98.111.136] (289ms):

ns1.22.cn [61.158.128.10] (234ms):

ns2.22.cn [183.253.57.207] (277ms):

ns2.22.cn [1.193.216.203] (288ms):

ns2.22.cn [211.99.99.61] (249ms):

ns1.22.cn [218.98.111.136] (173ms):

ns1.22.cn [61.158.128.10] (164ms):

ns2.22.cn [211.99.99.61] (155ms):

ns2.22.cn [1.193.216.203] (177ms):

ns2.22.cn [183.253.57.207] (185ms):

ns1.22.cn [61.158.128.10] (376ms):

ns1.22.cn [218.98.111.136] (388ms):

ns2.22.cn [183.253.57.207] (344ms):

ns2.22.cn [211.99.99.61] (448ms):

ns2.22.cn [1.193.216.203] (344ms):

ns1.22.cn [218.98.111.136] (338ms):

ns1.22.cn [61.158.128.10] (279ms):

ns2.22.cn [1.193.216.203] (339ms):

ns2.22.cn [183.253.57.207] (266ms):

ns2.22.cn [211.99.99.61] (345ms):

5. A record distribution by location for www.zonemaster.cn

Shows how the name servers respond to requests for www.zonemaster.cn

Frankfurt, DE San Francisco, US Johannesburg, ZA Singapore

ns1.22.cn [61.158.128.10] (231ms):

ns1.22.cn [218.98.111.136] (258ms):

ns2.22.cn [211.99.99.61] (255ms):

ns2.22.cn [1.193.216.203] (289ms):

ns2.22.cn [183.253.57.207] (258ms):

ns1.22.cn [218.98.111.136] (167ms):

ns1.22.cn [61.158.128.10] (184ms):

ns2.22.cn [183.253.57.207] (178ms):

ns2.22.cn [211.99.99.61] (158ms):

ns2.22.cn [1.193.216.203] (188ms):

ns1.22.cn [218.98.111.136] (388ms):

ns1.22.cn [61.158.128.10] (324ms):

ns2.22.cn [1.193.216.203] (344ms):

ns2.22.cn [211.99.99.61] (428ms):

ns2.22.cn [183.253.57.207] (340ms):

ns1.22.cn [61.158.128.10] (323ms):

ns1.22.cn [218.98.111.136] (time out 2000ms)

ns2.22.cn [183.253.57.207] (199ms):

ns2.22.cn [211.99.99.61] (342ms):

ns2.22.cn [1.193.216.203] (353ms):

6. Speed

Result: During the checks in the previous steps, multiple DNS requests were executed to the name servers responsible for the domain name. Average response time of the name servers is 280.01ms.
Recommendation: The name servers respond slow. Try moving to an Anycast DNS service in order to speed up the resolution of the domain name and first page load of the web site.

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