`guo1u.com`

DNSSEC	⚠️ Not signed
NS	`a.share-dns.com` ⚠️ Not in zone NS records
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`a8.share-dns.com` ⚠️ Not in parent delegation
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b.share-dns.net` ⚠️ Not in zone NS records
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b8.share-dns.net` ⚠️ Not in parent delegation
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`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=1777152746

Same first word

guo1u.com

DNS History

6 records (4 active, 2 former)

●NSa.share-dns.com2026-03-23 → 2026-04-25 · 2 obs

● 2026-03-23 07:26:26
● 2026-04-25 21:50:08

○NSa11.share-dns.com2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 07:26:26
○ 2026-04-25 21:50:08

●NSa8.share-dns.com2026-04-25 → 2026-04-25 · 2 obs

○ 2026-03-23 07:26:26
● 2026-04-25 21:50:08

●NSb.share-dns.net2026-03-23 → 2026-04-25 · 2 obs

● 2026-03-23 07:26:26
● 2026-04-25 21:50:08

○NSb11.share-dns.net2026-03-23 → 2026-03-23 · 2 obs

● 2026-03-23 07:26:26
○ 2026-04-25 21:50:08

●NSb8.share-dns.net2026-04-25 → 2026-04-25 · 2 obs

○ 2026-03-23 07:26:26
● 2026-04-25 21:50:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net...	-
guo1u.com	b8.share-dns.net, a8.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.53.25

NS records: b8.share-dns.net, a8.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for guo1u.com (unsigned zone)

⏱️ Timing

Total: 203ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`a.share-dns.com, b.share-dns.net`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a8.share-dns.com)

Analysis

Name Servers

guo1u.com is delegated to four name servers: a8.share-dns.com, a.share-dns.com, b8.share-dns.net and b.share-dns.net.

guo1u.com shares name servers with other domains at least partially, for example permanent1994.com, cheesejaguar.com, kyxxilk.cn, 1fangw.com and fulun6986.com.

these name servers are often used with the following: a2.share-dns.com, b2.share-dns.net, a6.share-dns.com, b6.share-dns.net, a1.share-dns.com, b1.share-dns.net, a12.share-dns.com, b12.share-dns.net, a10.share-dns.com and b10.share-dns.net.

Host names with one IP number:

a8.share-dns.com points to: 172.64.53.25.

a.share-dns.com points to: 172.64.53.25.

b8.share-dns.net points to: 172.64.52.239.

b.share-dns.net points to: 172.64.52.239.

Host names pointing to 172.64.53.25: a8.share-dns.com and a.share-dns.com.

Host names pointing to 172.64.52.239: b8.share-dns.net and b.share-dns.net.

guo1u.com - robtex.com

guo1u.com

com