`b.devops.edu.vn`

CNAME	`devops.edu.vn`
DNSSEC	⚠️ Not signed
A	194.9.62.254^{🇸🇬 SPEEDYPAGELTD-AS-AP194.9.62.0/24}
NS	`bayan.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b48^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c148^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bayan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2148^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bayan.ns.cloudflare.com`
		A	108.162.193.72^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
		A	172.64.33.72^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
		A	173.245.59.72^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
NS	`elaine.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a98^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c098^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elaine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2098^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elaine.ns.cloudflare.com`
		A	108.162.192.152^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	172.64.32.152^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	173.245.58.152^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
MX	`devops.edu.vn` ⭐
		A	194.9.62.254^{🇸🇬 SPEEDYPAGELTD-AS-AP194.9.62.0/24}
TXT	`MS=ms72907651`
TXT	`firebase=dos-edu`
TXT	`google-site-verification=PTxbPR7T7jRlxnkinKHhq8OvCLv5Fno4EDZmLp5Ekac`
TXT	`v=spf1 +mx +a +ip4:194.9.62.254 ~all`
SOA	`bayan.ns.cloudflare.com`dns@cloudflare.com serial=2402517861

`devops.edu.vn`

	DNSSEC	⚠️ Not signed
	A	194.9.62.254^{🇸🇬 SPEEDYPAGELTD-AS-AP194.9.62.0/24}
	NS	`bayan.ns.cloudflare.com` ⭐
	NS	`elaine.ns.cloudflare.com`
	MX	`devops.edu.vn` ⭐
	TXT	`MS=ms72907651`
	TXT	`firebase=dos-edu`
	TXT	`google-site-verification=PTxbPR7T7jRlxnkinKHhq8OvCLv5Fno4EDZmLp5Ekac`
	TXT	`v=spf1 +mx +a +ip4:194.9.62.254 ~all`
	SOA	`bayan.ns.cloudflare.com`dns@cloudflare.com serial=2402517861

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DNS History

1 record (1 active, 0 former)

●CNAMEdevops.edu.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 02:20:32
● 2026-05-10 12:00:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...	-
devops.edu.vn	bayan.ns.cloudflare.com, elaine.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.152

NS records: bayan.ns.cloudflare.com, elaine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for devops.edu.vn (unsigned zone)

⏱️ Timing

Total: 1250ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`devops.edu.vn`

Analysis

IP Addresses

b.devops.edu.vn points to a single IP address: 194.9.62.254.

Other host names such as antinphat.net, surel.blesscar.co.id, vesinhcongnghiep.org.vn, mail.nguyenvietanh.net and www.vesinhcongnghiep.org.vn share IPs with b.devops.edu.vn.

Name Servers

Two name servers bayan.ns.cloudflare.com and elaine.ns.cloudflare.com handle the delegation for b.devops.edu.vn.

b.devops.edu.vn shares the same name server setup as other domains, for example quadexpert.hr, hbhdsy.net, jsyccs.com, tongshilaw.com and zsyihan.com.

b.devops.edu.vn at least partially shares name servers with other domains, for example chogia.vn, d-adasia.com, f2h7.com, matchgeniuspro.com and thelovealgorithmworks.com.

these name servers are commonly used alongside donna.ns.cloudflare.com name servers.

Host names with six IP numbers:

bayan.ns.cloudflare.com points to 2606:4700:58::adf5:3b48, 2803:f800:50::6ca2:c148, 2a06:98c1:50::ac40:2148, 108.162.193.72, 172.64.33.72 and 173.245.59.72.

elaine.ns.cloudflare.com points to 2606:4700:50::adf5:3a98, 2803:f800:50::6ca2:c098, 2a06:98c1:50::ac40:2098, 108.162.192.152, 172.64.32.152 and 173.245.58.152.

Mail Servers

The devops.edu.vn mail server handles b.devops.edu.vn.

The mail server setup for b.devops.edu.vn is the same as that of other domains, for instance devops.edu.vn.

devops.edu.vn points to a single IP number: 194.9.62.254.

b.devops.edu.vn - robtex.com

b.devops.edu.vn

devops.edu.vn