`caoxanh.com`

DNSSEC	⚠️ Not signed
A	112.213.90.186^{🇻🇳 SUPERDATA112.213.90.0/24 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	`mail90186.maychuemail.com`
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`
MX	`mail92228.maychuemail.com` ⭐
		A	112.213.92.228^{🇻🇳 SUPERDATA112.213.92.0/24 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	`mail92228.maychuemail.com`
MX	`mx92228.maychuemail.net`⁽¹⁰⁾
		A	112.213.92.228^{🇻🇳 SUPERDATA112.213.92.0/24 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	`mail92228.maychuemail.com`
TXT	`v=spf1 +a +mx +ip4:112.213.90.186 +ip4:112.213.92.208 +ip4:112.213.92.228 ~all`
SOA	`nsbak.pavietnam.net`hostmaster@caoxanh.com 2025-07-20 #13

`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=1778349401

Subdomains

mail.caoxanh.com

Same first word

caoxanh.com

DNS History

17 records (6 active, 11 former)

●NSns1.pavietnam.vn2015-05-31 → 2026-05-09 · 5 obs

● 2015-05-31 06:54:42
● 2016-09-11 04:23:14
○ 2017-04-06 00:51:54
● 2020-03-10 08:06:36
● 2026-05-09 17:58:06

●NSns2.pavietnam.vn2015-05-31 → 2026-05-09 · 2 obs

● 2015-05-31 06:54:42
● 2026-05-09 17:58:06

●NSnsbak.pavietnam.net2017-04-06 → 2026-05-09 · 3 obs

○ 2016-09-11 04:23:14
● 2017-04-06 00:51:54
● 2026-05-09 17:58:06

○MXalt1.aspmx.l.google.com2015-05-31 → 2016-09-11 · 4 obs

● 2015-05-31 06:54:42
● 2016-09-11 04:23:14
○ 2017-04-06 00:51:54
○ 2026-05-09 17:58:06

○MXalt2.aspmx.l.google.com2015-05-31 → 2016-09-11 · 4 obs

● 2015-05-31 06:54:42
● 2016-09-11 04:23:14
○ 2017-04-06 00:51:54
○ 2026-05-09 17:58:06

○MXaspmx.l.google.com2015-05-31 → 2016-09-11 · 4 obs

● 2015-05-31 06:54:42
● 2016-09-11 04:23:14
○ 2017-04-06 00:51:54
○ 2026-05-09 17:58:06

○MXaspmx2.googlemail.com2015-05-31 → 2016-09-11 · 4 obs

● 2015-05-31 06:54:42
● 2016-09-11 04:23:14
○ 2017-04-06 00:51:54
○ 2026-05-09 17:58:06

○MXaspmx3.googlemail.com2015-05-31 → 2016-09-11 · 4 obs

● 2015-05-31 06:54:42
● 2016-09-11 04:23:14
○ 2017-04-06 00:51:54
○ 2026-05-09 17:58:06

○MXmail.caoxanh.com2017-04-06 → 2017-04-06 · 4 obs

○ 2016-09-11 04:23:14
● 2017-04-06 00:51:54
○ 2020-03-10 08:06:36
○ 2026-05-09 17:58:06

○MXmail90186.maychuemail.com2020-03-10 → 2020-03-10 · 4 obs

○ 2017-04-06 00:51:54
● 2020-03-10 08:06:36
○ 2026-02-15 15:45:52
○ 2026-05-09 17:58:06

●MXmail92228.maychuemail.com2026-02-15 → 2026-05-09 · 3 obs

○ 2020-03-10 08:06:36
● 2026-02-15 15:45:52
● 2026-05-09 17:58:06

○MXmx.caoxanh.com2017-04-06 → 2017-04-06 · 4 obs

○ 2016-09-11 04:23:14
● 2017-04-06 00:51:54
○ 2020-03-10 08:06:36
○ 2026-05-09 17:58:06

○MXmx90186.maychuemail.net2020-03-10 → 2020-03-10 · 4 obs

○ 2017-04-06 00:51:54
● 2020-03-10 08:06:36
○ 2026-02-15 15:45:52
○ 2026-05-09 17:58:06

●MXmx92228.maychuemail.net2026-02-15 → 2026-05-09 · 3 obs

○ 2020-03-10 08:06:36
● 2026-02-15 15:45:52
● 2026-05-09 17:58:06

○A112.213.89.32015-05-31 → 2015-05-31 · 3 obs

● 2015-05-31 06:54:42
○ 2015-10-21 03:01:02
○ 2026-05-09 17:58:06

●A112.213.90.1862017-04-06 → 2026-05-09 · 3 obs

○ 2016-09-11 04:23:14
● 2017-04-06 00:51:54
● 2026-05-09 17:58:06

○A128.199.243.1842015-10-21 → 2016-09-11 · 5 obs

○ 2015-05-31 06:54:42
● 2015-10-21 03:01:02
● 2016-09-11 04:23:14
○ 2017-04-06 00:51:54
○ 2026-05-09 17:58:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
caoxanh.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.22

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caoxanh.com (unsigned zone)

⏱️ Timing

Total: 1665ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.213.90.186`
NS	3	`ns1.pavietnam.vn, ns2.pavietnam.vn...`
MX	2	`mx92228.maychuemail.net (pri: 10), mail92228.maychuemail.com (pri: 5)`
TXT	1	`v=spf1 +a +mx +ip4:112.213.90.186 +ip4:1`
SOA	1	`nsbak.pavietnam.net hostmaster.caoxanh.c`

Analysis

Hierarchy

caoxanh.com is the parent of mail.caoxanh.com.

IP Addresses

caoxanh.com resolves to one IP number: 112.213.90.186.

other host names including mx90186.maychuemail.net, mail.phongthanh.com.vn, mail.chauphu.com, mail90186.dotvndns.vn and www.rms.vn share IP numbers with caoxanh.com.

Name Servers

caoxanh.com is delegated to three name servers nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

caoxanh.com at least partially shares name servers with other domains, for instance ezoffice.vn, theoasis.vn, autovinhcuong.com, lienlac.edu.vn and baogiaothong.com.vn.

These name servers are commonly used with ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com, ns3.dotvndns.vn and nsbak.pavietnam.vn.

Host names with two IP numbers:

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

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

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

Mail Servers

Two mail servers handle caoxanh.com: mail92228.maychuemail.com and mx92228.maychuemail.net.

caoxanh.com uses the same mail server setup as other domains, such as fa-vietnam.com, citydelivery.com.vn and iclandmark.com.

caoxanh.com shares at least partially some mail servers with other domains, including 5stars.com.vn, atcimex.com and aerotactvn.com.

these mail servers are commonly used with the mail servers mail93147.maychuemail.com.

Host names with a single IP:

mail92228.maychuemail.com points to 112.213.92.228.

mx92228.maychuemail.net points to 112.213.92.228.

Host names pointing to 112.213.92.228: mail92228.maychuemail.com and mx92228.maychuemail.net.

caoxanh.com - robtex.com

caoxanh.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`caoxanh.com`

`com`