`dfm-engineering.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:19f3^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:86ee^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.25.243^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.134.238^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`guy.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bad^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ad^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`guy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ad^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`guy.ns.cloudflare.com`
		A	108.162.193.173^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
		A	172.64.33.173^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
		A	173.245.59.173^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
NS	`kiki.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kiki.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kiki.ns.cloudflare.com`
		A	108.162.192.180^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	172.64.32.180^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	173.245.58.180^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
MX	`mx.viettelidc.com.vn` ⭐
		A	103.1.208.155^{🇻🇳 VTDC-AS-VN103.1.208.0/22 Proxy-registered route object}
			PTR	`hl-smtp01.viettelidc.com.vn`
		A	103.1.208.156^{🇻🇳 VTDC-AS-VN103.1.208.0/22 Proxy-registered route object}
			PTR	`hl-smtp02.viettelidc.com.vn`
TXT	`google-site-verification=qO6ObNJbTFBvVdVWw87rN26UJCxqVZ4bs6Ud3kMt3fc`
TXT	`v=spf1 ip4:103.1.208.0/24 a mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.25.243, 172.67.134.238
		IPv6	2606:4700:3033::6815:19f3, 2606:4700:3034::ac43:86ee
SOA	`guy.ns.cloudflare.com`dns@cloudflare.com serial=2399380620

`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=1771291435

Previously MX for

dfm-engineering.com

Subdomains

host.dfm-engineering.com

Same first word

dfm-engineering.com

DNS History

20 records (7 active, 13 former)

●NSguy.ns.cloudflare.com2015-08-05 → 2026-03-22 · 3 obs

○ 2008-03-16 13:16:42
● 2015-08-05 05:14:20
● 2026-03-22 07:03:44

●NSkiki.ns.cloudflare.com2015-08-05 → 2026-03-22 · 3 obs

○ 2008-03-16 13:16:42
● 2015-08-05 05:14:20
● 2026-03-22 07:03:44

○NSns.hosteur.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 13:16:42
○ 2015-08-05 05:14:20
○ 2026-03-22 07:03:44

○NSsdedie3.hosteur.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 13:16:42
○ 2015-08-05 05:14:20
○ 2026-03-22 07:03:44

○MXdfm-engineering.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 13:16:42
○ 2015-08-05 05:14:20
○ 2026-03-22 07:03:44

○MXmail.dfm-engineering.com2015-08-05 → 2017-06-28 · 5 obs

○ 2008-03-16 13:16:42
● 2015-08-05 05:14:20
● 2017-06-28 17:46:54
○ 2026-02-16 00:03:46
○ 2026-03-22 07:03:44

●MXmx.viettelidc.com.vn2026-02-16 → 2026-03-22 · 3 obs

○ 2017-06-28 17:46:54
● 2026-02-16 00:03:46
● 2026-03-22 07:03:44

●A104.21.25.2432026-02-16 → 2026-03-22 · 7 obs

○ 2017-06-28 17:46:54
● 2026-02-16 00:03:46
● 2026-02-22 23:36:30
○ 2026-02-25 22:11:42
○ 2026-02-25 23:18:32
● 2026-03-22 07:03:40
● 2026-03-22 07:03:44

○A104.28.2.1112015-08-05 → 2017-06-28 · 5 obs

○ 2008-03-16 13:16:42
● 2015-08-05 05:14:20
● 2017-06-28 17:46:54
○ 2026-02-16 00:03:46
○ 2026-03-22 07:03:44

○A104.28.3.1112015-08-05 → 2017-06-28 · 5 obs

○ 2008-03-16 13:16:42
● 2015-08-05 05:14:20
● 2017-06-28 17:46:54
○ 2026-02-16 00:03:46
○ 2026-03-22 07:03:44

●A172.67.134.2382026-02-16 → 2026-03-22 · 7 obs

○ 2017-06-28 17:46:54
● 2026-02-16 00:03:46
● 2026-02-22 23:36:30
○ 2026-02-25 22:11:42
○ 2026-02-25 23:18:32
● 2026-03-22 07:03:40
● 2026-03-22 07:03:44

○A188.114.96.02026-02-25 → 2026-02-25 · 5 obs

○ 2026-02-22 23:36:30
● 2026-02-25 22:11:42
● 2026-02-25 23:18:32
○ 2026-03-22 07:03:40
○ 2026-03-22 07:03:44

○A188.114.97.02026-02-25 → 2026-02-25 · 5 obs

○ 2026-02-22 23:36:30
● 2026-02-25 22:11:42
● 2026-02-25 23:18:32
○ 2026-03-22 07:03:40
○ 2026-03-22 07:03:44

○A193.34.17.1792008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 13:16:42
○ 2015-08-05 05:14:20
○ 2026-03-22 07:03:44

○A2400:cb00:2048:1::681c:26f2015-08-05 → 2017-06-28 · 5 obs

○ 2008-03-16 13:16:42
● 2015-08-05 05:14:20
● 2017-06-28 17:46:54
○ 2026-02-16 00:03:46
○ 2026-03-22 07:03:44

○A2400:cb00:2048:1::681c:36f2015-08-05 → 2017-06-28 · 5 obs

○ 2008-03-16 13:16:42
● 2015-08-05 05:14:20
● 2017-06-28 17:46:54
○ 2026-02-16 00:03:46
○ 2026-03-22 07:03:44

●A2606:4700:3033::6815:19f32026-02-16 → 2026-03-22 · 7 obs

○ 2017-06-28 17:46:54
● 2026-02-16 00:03:46
● 2026-02-22 23:36:30
○ 2026-02-25 22:11:42
○ 2026-02-25 23:18:32
● 2026-03-22 07:03:40
● 2026-03-22 07:03:44

●A2606:4700:3034::ac43:86ee2026-02-16 → 2026-03-22 · 7 obs

○ 2017-06-28 17:46:54
● 2026-02-16 00:03:46
● 2026-02-22 23:36:30
○ 2026-02-25 22:11:42
○ 2026-02-25 23:18:32
● 2026-03-22 07:03:40
● 2026-03-22 07:03:44

○A2a06:98c1:3120::2026-02-25 → 2026-02-25 · 5 obs

○ 2026-02-22 23:36:30
● 2026-02-25 22:11:42
● 2026-02-25 23:18:32
○ 2026-03-22 07:03:40
○ 2026-03-22 07:03:44

○A2a06:98c1:3121::2026-02-25 → 2026-02-25 · 5 obs

○ 2026-02-22 23:36:30
● 2026-02-25 22:11:42
● 2026-02-25 23:18:32
○ 2026-03-22 07:03:40
○ 2026-03-22 07:03:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
dfm-engineering.com	guy.ns.cloudflare.com, kiki.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.192.180

NS records: guy.ns.cloudflare.com, kiki.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dfm-engineering.com (unsigned zone)

⏱️ Timing

Total: 901ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.134.238, 104.21.25.243`
AAAA	2	`2606:4700:3033::6815:19f3, 2606:4700:3034::ac43:86ee`
NS	2	`guy.ns.cloudflare.com, kiki.ns.cloudflare.com`
MX	1	`mx.viettelidc.com.vn (pri: 10)`
TXT	2	`google-site-verification=qO6ObNJbTFBvVdV, v=spf1 ip4:103.1.208.0/24 a mx -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`guy.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (guy.ns.cloudflare.com, guy.ns.cloudflare.com, guy.ns.cloudflare.com...)

Analysis

Hierarchy

dfm-engineering.com is the parent of host.dfm-engineering.com.

IP Addresses

dfm-engineering.com resolves to four IP numbers: 2606:4700:3033::6815:19f3, 2606:4700:3034::ac43:86ee, 104.21.25.243 and 172.67.134.238.

other host names for instance 92-55-193-2.net.hawetelekom.pl, 78-159-77-123.net.hawetelekom.pl, 78-159-89-81.net.hawetelekom.pl, 78-159-86-10.net.hawetelekom.pl and 92-55-211-199.net.hawetelekom.pl share IP numbers with dfm-engineering.com.

Name Servers

dfm-engineering.com is delegated to two name servers: guy.ns.cloudflare.com and kiki.ns.cloudflare.com.

dfm-engineering.com shares the same name server setup as other domains, for example altwayusa.com, myteamabroad.com, appelsoft.com, richersand.com and driveallseasons.co.uk.

dfm-engineering.com at least partially shares name servers with other domains, for instance cumyes.com, glamourus.de, webgilityseller.shop, hindmanreadybuilt.com and san488.com.

These name servers are often used with walt.ns.cloudflare.com and woz.ns.cloudflare.com.

Host names with six IP numbers:

guy.ns.cloudflare.com points to: 2606:4700:58::adf5:3bad, 2803:f800:50::6ca2:c1ad, 2a06:98c1:50::ac40:21ad, 108.162.193.173, 172.64.33.173 and 173.245.59.173; kiki.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab4, 2803:f800:50::6ca2:c0b4, 2a06:98c1:50::ac40:20b4, 108.162.192.180, 172.64.32.180 and 173.245.58.180.

Mail Servers

dfm-engineering.com is handled by a single mail server, mx.viettelidc.com.vn.

dfm-engineering.com shares the same mail server setup as other domains, for instance myone.com.vn, gaet.com.vn, suntel.com.vn, ckm.asia and bintech.com.vn.

dfm-engineering.com shares at least partially some mail servers with other domains, for instance v-star.com.vn, baobitamthanh.com and phongthuytamnguyen.com.

Host mx.viettelidc.com.vn resolves to two IPs: 103.1.208.155 and 103.1.208.156.

dfm-engineering.com - robtex.com