`021so.cn`

DNSSEC

⚠️ Not signed

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034591567

Subdomains

www.021so.cn

Similar names

120so.com

102so.com

DNS History

7 records (0 active, 7 former)

○NSpark.i-now.cn2026-02-16 → 2026-02-16 · 3 obs

● 2026-02-16 23:41:22
○ 2026-02-18 02:47:12
○ 2026-03-27 02:51:18

○NSpark.i-now.com2026-02-16 → 2026-02-16 · 3 obs

● 2026-02-16 23:41:22
○ 2026-02-18 02:47:12
○ 2026-03-27 02:51:18

○A47.90.164.2462026-02-16 → 2026-02-16 · 4 obs

○ 2017-03-30 09:58:56
● 2026-02-16 23:41:22
○ 2026-02-18 02:47:12
○ 2026-03-27 02:51:18

○A52.69.166.2312017-03-30 → 2026-02-16 · 5 obs

○ 2016-07-01 10:51:40
● 2017-03-30 09:58:56
● 2026-02-16 23:41:22
○ 2026-02-18 02:47:12
○ 2026-03-27 02:51:18

○A54.183.180.822015-06-20 → 2015-06-20 · 3 obs

● 2015-06-20 07:57:34
○ 2016-03-09 09:02:22
○ 2026-03-27 02:51:18

○A67.229.168.422016-03-09 → 2016-07-01 · 5 obs

○ 2015-06-20 07:57:34
● 2016-03-09 09:02:22
● 2016-07-01 10:51:40
○ 2017-03-30 09:58:56
○ 2026-03-27 02:51:18

○A67.229.168.432016-03-09 → 2016-07-01 · 5 obs

○ 2015-06-20 07:57:34
● 2016-03-09 09:02:22
● 2016-07-01 10:51:40
○ 2017-03-30 09:58:56
○ 2026-03-27 02:51:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-

✅ Authoritative Response

Server:203.119.25.1

NS records: a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 3682ms | Queries: -

📄 Records

Type	Count	Sample Data

021so.cn - robtex.com

021so.cn

cn