`stdusfc.edu.cn`

DNSSEC	⚠️ Not signed
NS	`dns1.test.com` ⭐
NS	`dns1.stdusfc.edu.cn`
		A	2001:250:826:2::1^{🇨🇳 CNGI-SJZ-IX-AS-AP2001:250:826::/48}
		A	61.182.75.222^{🇨🇳 CHINA169-Backbone61.182.0.0/16 CNC Group CHINA169 Hebei Province Network}
			PTR	`hebei.182.61.in-addr.arpa`
NS	`dns2.stdusfc.edu.cn` ⚠️ Not in zone NS records
		A	2001:250:826:2::2^{🇨🇳 CNGI-SJZ-IX-AS-AP2001:250:826::/48}
		A	61.182.75.222^{🇨🇳 CHINA169-Backbone61.182.0.0/16 CNC Group CHINA169 Hebei Province Network}
			PTR	`hebei.182.61.in-addr.arpa`
MX	`mail.stdusfc.edu.cn` ⭐
SOA	`dns1.test.com`dns1@test.com 2021-04-28 #92

`edu.cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns2.edu.cn` ⭐
	NS	`dns.edu.cn`
	NS	`dns3.edu.cn`
	NS	`ns2.cernet.net`
	NS	`ns4.cernet.net`
	NS	`ns5.cernet.net`
	SOA	`dns.edu.cn`hostmaster@net.edu.cn 2026-05-12 #17

WOT: SAFE (85/100)

dns1.stdusfc.edu.cn

www.stdusfc.edu.cn

dns2.stdusfc.edu.cn

stdusfc.cn

stdusfc.edu.cn

4 records (4 active, 0 former)

●NSdns1.stdusfc.edu.cn2019-12-13 → 2026-05-12 · 2 obs

● 2019-12-13 15:28:50
● 2026-05-12 23:22:18

●NSdns1.test.com2021-10-07 → 2026-05-12 · 3 obs

○ 2019-12-13 15:28:50
● 2021-10-07 12:32:54
● 2026-05-12 23:22:18

●NSdns2.stdusfc.edu.cn2019-12-13 → 2026-05-12 · 4 obs

● 2019-12-13 15:28:50
○ 2021-10-07 12:32:54
● 2026-02-22 08:50:12
● 2026-05-12 23:22:18

●MXmail.stdusfc.edu.cn2019-12-13 → 2026-05-12 · 4 obs

● 2019-12-13 15:28:50
○ 2021-10-07 12:32:54
● 2026-02-22 08:50:12
● 2026-05-12 23:22:18

stdusfc.edu.cn is a parent of dns1.stdusfc.edu.cn, www.stdusfc.edu.cn and dns2.stdusfc.edu.cn.

stdusfc.edu.cn is delegated to three name servers: dns1.test.com, dns1.stdusfc.edu.cn and dns2.stdusfc.edu.cn.

Host names with two IP numbers

Host name dns1.stdusfc.edu.cn points to 2001:250:826:2::1 and 61.182.75.222

Host name dns2.stdusfc.edu.cn points to 2001:250:826:2::2 and 61.182.75.222

Host names that point to 61.182.75.222 are dns1.stdusfc.edu.cn and dns2.stdusfc.edu.cn

stdusfc.edu.cn is handled by a single mail server, mail.stdusfc.edu.cn.