`server520.com`

DNSSEC	⚠️ Not signed
A	120.24.226.48^{🇨🇳 Alibaba-Cloud120.24.0.0/16}
NS	`ns3.01isp.com` ⭐ ⚠️ Not in zone NS records
		A	42.240.142.46^{🇨🇳 CHINANET-Guangdong-GuangZhou-IDC42.240.128.0/20 Guangzhou IDC of ChinaUnicom}
NS	`ns4.01isp.net` ⚠️ Not in zone NS records
		A	47.239.41.106^{🇭🇰 Alibaba-Cloud47.239.0.0/16 Proxy-registered route object}
NS	`ns7.01isp.com` ⚠️ Not in parent delegation
		A	42.240.142.46^{🇨🇳 CHINANET-Guangdong-GuangZhou-IDC42.240.128.0/20 Guangzhou IDC of ChinaUnicom}
NS	`ns8.01isp.net` ⚠️ Not in parent delegation
		A	47.239.41.106^{🇭🇰 Alibaba-Cloud47.239.0.0/16 Proxy-registered route object}
MX	`mx2.qiye.aliyun.com`⁽²⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
MX	`mxn.mxhichina.com`⁽⁵⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`ip-47-246-137-47.defastlink.net`
MX	`mxw.mxhichina.com`⁽¹⁰⁾
		A	47.246.99.195^{🇺🇸 Alibaba-Cloud47.246.96.0/22 Proxy-registered route object}
			PTR	`reachsmartdwell.com`
TXT	`v=spf1 include:spf.mxhichina.com -all`
SOA	`ns3.01isp.com`admin@now.cn 2026-03-12 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

Same first word

server520.com

Similar names

server250.com

DNS History

9 records (8 active, 1 former)

●NSns3.01isp.com2016-12-19 → 2026-03-18 · 2 obs

● 2016-12-19 03:17:30
● 2026-03-18 22:00:42

●NSns4.01isp.net2016-12-19 → 2026-03-18 · 2 obs

● 2016-12-19 03:17:30
● 2026-03-18 22:00:42

●NSns7.01isp.com2026-02-24 → 2026-03-18 · 3 obs

○ 2016-12-19 03:17:30
● 2026-02-24 13:55:44
● 2026-03-18 22:00:42

●NSns8.01isp.net2026-02-24 → 2026-03-18 · 3 obs

○ 2016-12-19 03:17:30
● 2026-02-24 13:55:44
● 2026-03-18 22:00:42

○MXmail.server520.com2016-12-19 → 2017-12-19 · 4 obs

● 2016-12-19 03:17:30
● 2017-12-19 06:19:34
○ 2026-02-24 13:55:44
○ 2026-03-18 22:00:42

●MXmx2.qiye.aliyun.com2026-02-24 → 2026-03-18 · 3 obs

○ 2017-12-19 06:19:34
● 2026-02-24 13:55:44
● 2026-03-18 22:00:42

●MXmxn.mxhichina.com2026-02-24 → 2026-03-18 · 3 obs

○ 2017-12-19 06:19:34
● 2026-02-24 13:55:44
● 2026-03-18 22:00:42

●MXmxw.mxhichina.com2026-02-24 → 2026-03-18 · 3 obs

○ 2017-12-19 06:19:34
● 2026-02-24 13:55:44
● 2026-03-18 22:00:42

●A120.24.226.482016-12-19 → 2026-03-18 · 2 obs

● 2016-12-19 03:17:30
● 2026-03-18 22:00:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net...	-
server520.com	ns3.01isp.com, ns4.01isp.net	1 record

✅ Authoritative Response

Server: 42.240.142.46

NS records: ns3.01isp.com, ns4.01isp.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for server520.com (unsigned zone)

⏱️ Timing

Total: 1891ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`120.24.226.48`
NS	2	`ns8.01isp.net, ns7.01isp.com`
MX	4	`mxn.mxhichina.com (pri: 5), mx2.qiye.aliyun.com (pri: 2)...`
TXT	1	`v=spf1 include:spf.mxhichina.com -all`
SOA	1	`ns3.01isp.com admin.now.cn`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns3.01isp.com)

Analysis

IP Addresses

server520.com points to a single IP: 120.24.226.48.

Name Servers

server520.com is delegated to four name servers: ns3.01isp.com, ns7.01isp.com, ns4.01isp.net and ns8.01isp.net.

server520.com at least partially shares its name servers with other domains, for instance takasago-ss.com, chinaipmanagers.com, c1892.com, jxgtx.com and xiaogeda.com.