kb-sync.com - dns.ninja

`kb-sync.com`

DNSSEC	⚠️ Not signed
A	103.195.240.26^{🇻🇳 TOCDOSOVN-AS-VN103.195.240.0/22 TOCDOSO-VN}
		PTR	`no-ptr-record.unixnds.net`
NS	`nsbak.dotvndns.com` ⭐
		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.dotvndns.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.dotvndns.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.dotvndns.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	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
TXT	`google-site-verification=w04MbBhZb6wwz3UBHHAgq5awnUI5o1NpJdcpFLaL5is`
TXT	`v=spf1 ip4:210.245.84.99 ip4:210.245.87.6 ip4:210.245.87.63 include:_spf.goog...`
SOA	`nsbak.dotvndns.com`hostmaster@kb-sync.com 2026-06-24 #24

`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=1785131067

Same first word

kb-sync.com

Similar names

cbk-syn.synology.me

DNS History

11 records (6 active, 5 former)

●NSns1.dotvndns.vn2026-02-20 → 2026-07-27 · 2 obs

● 2026-02-20 02:54:54
● 2026-07-27 06:03:08

●NSns2.dotvndns.vn2026-02-20 → 2026-07-27 · 2 obs

● 2026-02-20 02:54:54
● 2026-07-27 06:03:08

●NSns3.dotvndns.vn2026-02-20 → 2026-07-27 · 2 obs

● 2026-02-20 02:54:54
● 2026-07-27 06:03:08

●NSnsbak.dotvndns.com2026-02-20 → 2026-07-27 · 2 obs

● 2026-02-20 02:54:54
● 2026-07-27 06:03:08

○MXalt1.aspmx.l.google.com2026-02-20 → 2026-04-07 · 4 obs

● 2026-02-20 02:54:54
● 2026-04-07 23:56:00
○ 2026-05-01 06:29:24
○ 2026-07-27 06:03:08

○MXalt2.aspmx.l.google.com2026-02-20 → 2026-04-07 · 4 obs

● 2026-02-20 02:54:54
● 2026-04-07 23:56:00
○ 2026-05-01 06:29:24
○ 2026-07-27 06:03:08

○MXalt3.aspmx.l.google.com2026-02-20 → 2026-04-07 · 4 obs

● 2026-02-20 02:54:54
● 2026-04-07 23:56:00
○ 2026-05-01 06:29:24
○ 2026-07-27 06:03:08

○MXalt4.aspmx.l.google.com2026-02-20 → 2026-04-07 · 4 obs

● 2026-02-20 02:54:54
● 2026-04-07 23:56:00
○ 2026-05-01 06:29:24
○ 2026-07-27 06:03:08

○MXaspmx.l.google.com2026-02-20 → 2026-04-07 · 4 obs

● 2026-02-20 02:54:54
● 2026-04-07 23:56:00
○ 2026-05-01 06:29:24
○ 2026-07-27 06:03:08

●MXsmtp.google.com2026-05-01 → 2026-07-27 · 3 obs

○ 2026-04-07 23:56:00
● 2026-05-01 06:29:24
● 2026-07-27 06:03:08

●A103.195.240.262026-02-20 → 2026-07-27 · 2 obs

● 2026-02-20 02:54:54
● 2026-07-27 06:03:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
kb-sync.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn	2 records

✅ Authoritative Response

Server:112.213.89.22

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kb-sync.com (unsigned zone)

⏱️ Timing

Total: 1382ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.195.240.26`
NS	4	`nsbak.dotvndns.com, ns1.dotvndns.vn...`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`v=spf1 ip4:210.245.84.99 ip4:210.245.87., google-site-verification=w04MbBhZb6wwz3U`
SOA	1	`nsbak.dotvndns.com hostmaster.kb-sync.co`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

IP Addresses

kb-sync.com resolves to one IP address: 103.195.240.26.

data.123vietnamese.com, tamsoa.com, 123vietnamese.com and two other host names share IP numbers with kb-sync.com.

Name Servers

The authoritative name servers for kb-sync.com are nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns3.dotvndns.vn.

The name servers of kb-sync.com overlap at least partially with those of other domains — among them giabaojsc.vn, vnns.vn, bonnuocdaithanh.vn and two more.

The name servers ns1.pavietnam.vn, ns2.pavietnam.vn and nsbak.pavietnam.net are commonly seen alongside these name servers.

Hostnames that resolve to two IP addresses:

nsbak.dotvndns.com has two IP addresses: 112.213.89.22 and 2406:9c80::9000:302.

ns1.dotvndns.vn has two IP addresses: 112.213.89.3 and 2406:9c80::66.

ns2.dotvndns.vn has two IP addresses: 222.255.121.247 and 2406:9c80::9000:111.

Hosts with just one IP address:

ns3.dotvndns.vn directs to 112.213.89.22.

Host names pointing to 112.213.89.22 IP addresses: nsbak.dotvndns.com and ns3.dotvndns.vn.

Mail Servers

Mail for kb-sync.com is handled by a single mail server, smtp.google.com.

kb-sync.com uses an identical mail server configuration to several other domains — among them 1wpbmd.life, realestateinvestmentclasses.com, gclg.be and two more.

kb-sync.com has at least partial mail server overlap with other domains such as impakltda.com, appcd.com, switchy.co.il and two more.

The mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com are commonly seen alongside these mail servers.

smtp.google.com resolves to 9 IP addresses — 142.251.16.26, 142.251.16.27, 142.251.111.26 and 6 others.