`rubicgroup.com`

DNSSEC	⚠️ Not signed
A	45.252.248.26^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
NS	`nsbak.pavietnam.net` ⭐
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
NS	`ns1.pavietnam.vn`
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
		A	112.213.89.3^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns1.dotvndns.vn`
NS	`ns2.pavietnam.vn`
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
NS	`ns3.pavietnam.vn`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c19::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
MX	`kta22hxw6kcxxmwogiduryzn3arslyqhtuhozs5otgxippjlonrq.mx-verification.google.com`⁽¹⁰⁾
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`nsbak.pavietnam.net`hostmaster@rubicgroup.com 2026-01-08 #7

`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=1785435162

Same first word

rubicgroup.com

DNS History

11 records (11 active, 0 former)

●NSns1.pavietnam.vn2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●NSns2.pavietnam.vn2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●NSns3.pavietnam.vn2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●NSnsbak.pavietnam.net2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●MXalt1.aspmx.l.google.com2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●MXalt2.aspmx.l.google.com2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●MXalt3.aspmx.l.google.com2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●MXalt4.aspmx.l.google.com2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●MXaspmx.l.google.com2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●MXkta22hxw6kcxxmwogiduryzn3arslyqhtuhozs5otgxippjlonrq.mx-verification.google.com2026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

●A45.252.248.262026-05-01 → 2026-07-30 · 2 obs

● 2026-05-01 08:23:30
● 2026-07-30 18:22:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
rubicgroup.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn, ns3.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.22

NS records: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn, ns3.pavietnam.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubicgroup.com (unsigned zone)

⏱️ Timing

Total: 2187ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.252.248.26`
NS	4	`nsbak.pavietnam.net, ns2.pavietnam.vn...`
MX	6	`alt2.aspmx.l.google.com (pri: 5), alt1.aspmx.l.google.com (pri: 5)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
SOA	1	`nsbak.pavietnam.net hostmaster.rubicgrou`

Analysis

IP Addresses

rubicgroup.com points to a single IP number: 45.252.248.26.

Additional host names — mail.netbaohiem.com, www.phukiennhomdinhhinh.vn, kindlehanoi.vn and two others — share IP numbers with rubicgroup.com.

Name Servers

rubicgroup.com has four authoritative name servers: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn and ns3.pavietnam.vn.

At least some of rubicgroup.com's name servers are shared with other domains, for example itt-hau.edu.vn, quangcaonhatrang.vn, phumyhotel.vn and two more.

These name servers tend to co-occur with ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com and 3 other name servers in the same DNS delegations.

Host names with two IP numbers:

nsbak.pavietnam.net points to 112.213.89.22 and 2406:9c80::9000:302.

ns1.pavietnam.vn points to 112.213.89.3 and 2406:9c80::66.

ns2.pavietnam.vn points to 222.255.121.247 and 2406:9c80::9000:111.

Host names pointing to a single IP address:

ns3.pavietnam.vn points to 112.213.89.22.

nsbak.pavietnam.net and ns3.pavietnam.vn are host names that each point to 112.213.89.22 IP addresses.