`520big.com`

	CNAME	`dnspod-free.beian.mydnspod.net`
	DNSSEC	⚠️ Not signed
	A	180.163.28.105^{🇨🇳 SHANGHAITELECOM180.163.28.0/22 SHIDC}

`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

520big.com

DNS History

7 records (3 active, 4 former)

○NSdns10.hichina.com2016-12-20 → 2017-12-14 · 3 obs

● 2016-12-20 15:13:34
● 2017-12-14 08:59:52
○ 2026-03-12 06:07:48

○NSdns9.hichina.com2016-12-20 → 2017-12-14 · 3 obs

● 2016-12-20 15:13:34
● 2017-12-14 08:59:52
○ 2026-03-12 06:07:48

●NSf1g1ns1.dnspod.net2026-03-12 → 2026-03-12 · 2 obs

○ 2017-12-14 08:59:52
● 2026-03-12 06:07:48

●NSf1g1ns2.dnspod.net2026-03-12 → 2026-03-12 · 2 obs

○ 2017-12-14 08:59:52
● 2026-03-12 06:07:48

○A43.242.131.1572016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 15:13:34
○ 2017-12-14 08:59:52
○ 2026-03-12 06:07:48

○A47.89.58.1412017-12-14 → 2017-12-14 · 3 obs

○ 2016-12-20 15:13:34
● 2017-12-14 08:59:52
○ 2026-03-12 06:07:48

●CNAMEdnspod-free.beian.mydnspod.net2026-03-12 → 2026-03-12 · 1 obs

● 2026-03-12 06:07:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net...	-
520big.com	f1g1ns1.dnspod.net, f1g1ns2.dnspod.net	-

✅ Authoritative Response

Server: 1.14.119.35

NS records: f1g1ns1.dnspod.net, f1g1ns2.dnspod.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 520big.com (unsigned zone)

⏱️ Timing

Total: 685ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`f1g1ns1.dnspod.net, f1g1ns2.dnspod.net`
CNAME	1	`dnspod-free.beian.mydnspod.net`
SOA	1	`f1g1ns1.dnspod.net freednsadmin.dnspod.c`

Analysis

IP Addresses

520big.com points to a single IP number: 180.163.28.105.

Other host names, for instance slowcom.cn, dqlog.com, lianzhongyun.com, ipwas.cn and tweakcube.com share IP numbers with 520big.com.

520big.com - robtex.com

520big.com

com