`china4a.org`

DNSSEC	⚠️ Not signed
A	121.196.199.242^{🇨🇳 Alibaba-Cloud121.196.0.0/16}
NS	`ns1.sfn.cn` ⭐
		A	111.63.77.29^{🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route)}
NS	`ns2.sfn.cn`
		A	101.37.119.99^{🇨🇳 Alibaba-Cloud101.37.0.0/17}
		A	111.63.77.30^{🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route)}
MX	`mxwcom.263xmail.com` ⭐
		A	38.83.106.84^{🇺🇸 AS6319938.83.106.0/24 CS-34755}
			PTR	`us-mx1.263.net`
		A	38.83.106.85^{🇺🇸 AS6319938.83.106.0/24 CS-34755}
			PTR	`us-mx2.263.net`
		A	143.110.227.31^{🇺🇸 DIGITALOCEAN143.110.224.0/20 DigitalOcean}
		A	164.92.126.242^{🇺🇸 DIGITALOCEAN164.92.96.0/19 DigitalOcean}
MX	`mxcom.263xmail.com`⁽¹⁰⁾
		A	38.83.106.84^{🇺🇸 AS6319938.83.106.0/24 CS-34755}
			PTR	`us-mx1.263.net`
		A	38.83.106.85^{🇺🇸 AS6319938.83.106.0/24 CS-34755}
			PTR	`us-mx2.263.net`
		A	143.110.227.31^{🇺🇸 DIGITALOCEAN143.110.224.0/20 DigitalOcean}
		A	164.92.126.242^{🇺🇸 DIGITALOCEAN164.92.96.0/19 DigitalOcean}
TXT	`v=spf1 include:spf.263.net -all`
SOA	`ns1.sfn.cn`root@ns1.sfn.cn 2026-07-27 #8

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785114834

Subdomains

www.china4a.org

Same first word

china4a.org

DNS History

8 records (5 active, 3 former)

●NSns1.sfn.cn2016-07-11 → 2026-07-27 · 3 obs

○ 2016-03-19 16:34:28
● 2016-07-11 04:30:54
● 2026-07-27 01:38:54

●NSns2.sfn.cn2016-07-11 → 2026-07-27 · 3 obs

○ 2016-03-19 16:34:28
● 2016-07-11 04:30:54
● 2026-07-27 01:38:54

○NSns79.worldnic.com2015-08-15 → 2016-03-19 · 4 obs

● 2015-08-15 16:47:54
● 2016-03-19 16:34:28
○ 2016-07-11 04:30:54
○ 2026-07-27 01:38:54

○NSns80.worldnic.com2015-08-15 → 2016-03-19 · 4 obs

● 2015-08-15 16:47:54
● 2016-03-19 16:34:28
○ 2016-07-11 04:30:54
○ 2026-07-27 01:38:54

●MXmxcom.263xmail.com2015-08-15 → 2026-07-27 · 2 obs

● 2015-08-15 16:47:54
● 2026-07-27 01:38:54

●MXmxwcom.263xmail.com2015-08-15 → 2026-07-27 · 2 obs

● 2015-08-15 16:47:54
● 2026-07-27 01:38:54

●A121.196.199.2422026-04-06 → 2026-07-27 · 3 obs

○ 2017-03-17 08:47:10
● 2026-04-06 21:05:10
● 2026-07-27 01:38:54

○A59.110.48.142017-03-17 → 2017-03-17 · 3 obs

● 2017-03-17 08:47:10
○ 2026-04-06 21:05:10
○ 2026-07-27 01:38:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
china4a.org	ns2.sfn.cn, ns1.sfn.cn	-

✅ Authoritative Response

Server:111.63.77.30

NS records: ns2.sfn.cn, ns1.sfn.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for china4a.org (unsigned zone)

⏱️ Timing

Total: 1511ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.196.199.242`
NS	2	`ns2.sfn.cn, ns1.sfn.cn`
MX	2	`MXCOM.263XMAIL.COM (pri: 10), MXWCOM.263XMAIL.COM (pri: 5)`
TXT	1	`v=spf1 include:spf.263.net -all`
SOA	1	`ns1.sfn.cn root.ns1.sfn.cn`

Analysis

Hierarchy

china4a.org is a parent domain of www.china4a.org.

IP Addresses

china4a.org has exactly one IP address — 121.196.199.242.

Name Servers

Two name servers handle the delegation for china4a.org: ns1.sfn.cn and ns2.sfn.cn.

The name server configuration of china4a.org is shared with other domains, for instance hceo.ac.cn, loftel.com.cn, wzyb.com.cn and two others.

china4a.org at least partially shares name servers with other domains, including cqnews.com.cn, ntt.com.cn, hsq.gov.cn and baohua.com.cn.

These name servers are frequently paired with the name servers ns1.alidns.com and ns2.alidns.com.

Host names pointing to two IP addresses:

ns2.sfn.cn resolves to two addresses: 101.37.119.99 and 111.63.77.30.

Host names resolving to a single IP address:

The hostname ns1.sfn.cn resolves to 111.63.77.29.

Mail Servers

china4a.org uses two mail servers, mxcom.263xmail.com and mxwcom.263xmail.com.

The mail server setup of china4a.org matches that of other domains such as nbvs.com.cn, nurchem.com, pec.cn and two others.

At least some of the mail servers used by china4a.org are shared with other domains: veic.com.cn, corna.cn, czjiejiegao.com and two others among them.

Both mxcom.263xmail.com and mxwcom.263xmail.com resolve to four IP addresses: mxcom.263xmail.com points to 38.83.106.84, 38.83.106.85, 143.110.227.31 and 164.92.126.242 while mxwcom.263xmail.com resolves to 38.83.106.84, 38.83.106.85, 143.110.227.31 and 164.92.126.242.