`certifiedmastertech.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:cd99^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:5579^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.85.121^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.205.153^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amir.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amir.ns.cloudflare.com`
		A	108.162.193.62^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	172.64.33.62^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	173.245.59.62^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
NS	`lana.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lana.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lana.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lana.ns.cloudflare.com`
		A	108.162.192.182^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lana.ns.cloudflare.com`
		A	172.64.32.182^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lana.ns.cloudflare.com`
		A	173.245.58.182^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lana.ns.cloudflare.com`
MX	`mx1.certifiedmastertech.com` ⭐
		A	96.30.7.144^{🇺🇸 LiquidWeb96.30.0.0/18 Liquid Web LLC 2703 Ena Dr Lansing, MI 48917}
			PTR	`server2-2.nextnetmedia.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.85.121, 172.67.205.153
		IPv6 hints	2606:4700:3033::ac43:cd99, 2606:4700:3034::6815:5579
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=107, name=cloudflare-ech.com
SOA	`amir.ns.cloudflare.com`dns@cloudflare.com serial=2401367592

`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=1777049586

Previously MX for

certifiedmastertech.com

Subdomains

mx1.certifiedmastertech.com

Same first word

certifiedmastertech.com

Similar names

mastertechcertified.com

DNS History

20 records (7 active, 13 former)

●NSamir.ns.cloudflare.com2026-04-05 → 2026-04-24 · 3 obs

○ 2016-09-14 15:34:36
● 2026-04-05 07:17:46
● 2026-04-24 17:07:04

●NSlana.ns.cloudflare.com2026-04-05 → 2026-04-24 · 3 obs

○ 2016-09-14 15:34:36
● 2026-04-05 07:17:46
● 2026-04-24 17:07:04

○NSns1.bluehost.com2015-10-20 → 2016-09-14 · 5 obs

○ 2015-05-19 00:16:04
● 2015-10-20 06:16:02
● 2016-09-14 15:34:36
○ 2026-04-05 07:17:46
○ 2026-04-24 17:07:04

○NSns1.west-datacenter.net2007-08-14 → 2015-05-19 · 4 obs

● 2007-08-14 09:26:24
● 2015-05-19 00:16:04
○ 2015-10-20 06:16:02
○ 2026-04-24 17:07:04

○NSns2.bluehost.com2015-10-20 → 2016-09-14 · 5 obs

○ 2015-05-19 00:16:04
● 2015-10-20 06:16:02
● 2016-09-14 15:34:36
○ 2026-04-05 07:17:46
○ 2026-04-24 17:07:04

○NSns2.west-datacenter.net2007-08-14 → 2015-05-19 · 4 obs

● 2007-08-14 09:26:24
● 2015-05-19 00:16:04
○ 2015-10-20 06:16:02
○ 2026-04-24 17:07:04

○MXcertifiedmastertech.com2007-08-14 → 2015-05-19 · 4 obs

● 2007-08-14 09:26:24
● 2015-05-19 00:16:04
○ 2015-10-20 06:16:02
○ 2026-04-24 17:07:04

○MXmail.certifiedmastertech.com2015-10-20 → 2016-09-14 · 5 obs

○ 2015-05-19 00:16:04
● 2015-10-20 06:16:02
● 2016-09-14 15:34:36
○ 2026-04-05 07:17:46
○ 2026-04-24 17:07:04

●MXmx1.certifiedmastertech.com2026-04-05 → 2026-04-24 · 3 obs

○ 2016-09-14 15:34:36
● 2026-04-05 07:17:46
● 2026-04-24 17:07:04

●A104.21.85.1212026-04-05 → 2026-04-24 · 5 obs

○ 2016-09-14 15:34:36
● 2026-04-05 07:17:46
● 2026-04-22 23:18:30
○ 2026-04-23 19:51:16
● 2026-04-24 17:07:04

○A142.4.16.72016-09-14 → 2016-09-14 · 4 obs

○ 2016-03-29 18:44:52
● 2016-09-14 15:34:36
○ 2026-04-05 07:17:46
○ 2026-04-24 17:07:04

○A162.144.22.572015-10-20 → 2016-03-29 · 5 obs

○ 2015-05-19 00:16:04
● 2015-10-20 06:16:02
● 2016-03-29 18:44:52
○ 2016-09-14 15:34:36
○ 2026-04-24 17:07:04

●A172.67.205.1532026-04-05 → 2026-04-24 · 5 obs

○ 2016-09-14 15:34:36
● 2026-04-05 07:17:46
● 2026-04-22 23:18:30
○ 2026-04-23 19:51:16
● 2026-04-24 17:07:04

○A188.114.96.02026-04-23 → 2026-04-23 · 3 obs

○ 2026-04-22 23:18:30
● 2026-04-23 19:51:16
○ 2026-04-24 17:07:04

○A188.114.97.02026-04-23 → 2026-04-23 · 3 obs

○ 2026-04-22 23:18:30
● 2026-04-23 19:51:16
○ 2026-04-24 17:07:04

○A208.131.133.452007-08-14 → 2015-05-19 · 4 obs

● 2007-08-14 09:26:24
● 2015-05-19 00:16:04
○ 2015-10-20 06:16:02
○ 2026-04-24 17:07:04

●A2606:4700:3033::ac43:cd992026-04-05 → 2026-04-24 · 5 obs

○ 2016-09-14 15:34:36
● 2026-04-05 07:17:46
● 2026-04-22 23:18:30
○ 2026-04-23 19:51:16
● 2026-04-24 17:07:04

●A2606:4700:3034::6815:55792026-04-05 → 2026-04-24 · 5 obs

○ 2016-09-14 15:34:36
● 2026-04-05 07:17:46
● 2026-04-22 23:18:30
○ 2026-04-23 19:51:16
● 2026-04-24 17:07:04

○A2a06:98c1:3120::2026-04-23 → 2026-04-23 · 3 obs

○ 2026-04-22 23:18:30
● 2026-04-23 19:51:16
○ 2026-04-24 17:07:04

○A2a06:98c1:3121::2026-04-23 → 2026-04-23 · 3 obs

○ 2026-04-22 23:18:30
● 2026-04-23 19:51:16
○ 2026-04-24 17:07:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
certifiedmastertech.com	amir.ns.cloudflare.com, lana.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.182

NS records: amir.ns.cloudflare.com, lana.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certifiedmastertech.com (unsigned zone)

⏱️ Timing

Total: 129ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.205.153, 104.21.85.121`
AAAA	2	`2606:4700:3034::6815:5579, 2606:4700:3033::ac43:cd99`
NS	2	`amir.ns.cloudflare.com, lana.ns.cloudflare.com`
MX	1	`mx1.certifiedmastertech.com (pri: 0)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amir.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

certifiedmastertech.com is a parent of mx1.certifiedmastertech.com.

IP Addresses

certifiedmastertech.com points to four IP numbers: 2606:4700:3033::ac43:cd99, 2606:4700:3034::6815:5579, 104.21.85.121 and 172.67.205.153.

Other host names, for instance mta40.ininbox.com, fomelequia.com, ez.onlineapp-net-hk-whatsapp.com.cn, mta61.ininbox.com and www.bestoflasvegas.com share IP numbers with certifiedmastertech.com.

Name Servers

Delegation for certifiedmastertech.com rests with two name servers, amir.ns.cloudflare.com and lana.ns.cloudflare.com.

certifiedmastertech.com shares the same name server setup as other domains, including esiconsult.com, diarioelregionaldelzulia.com, arefact.com, gosolutions.us and removetips.net.

certifiedmastertech.com at least partially shares name servers with other domains, for instance balkan-samp.com, camposc.net, yuanser.com, luky-jma.cz and curvyqueenzofdallas.com.

These name servers are commonly used with the name servers oaklyn.ns.cloudflare.com.

Host names with six IP numbers: amir.ns.cloudflare.com points to: 2606:4700:58::adf5:3b3e, 2803:f800:50::6ca2:c13e, 2a06:98c1:50::ac40:213e, 108.162.193.62, 172.64.33.62 and 173.245.59.62. lana.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab6, 2803:f800:50::6ca2:c0b6, 2a06:98c1:50::ac40:20b6, 108.162.192.182, 172.64.32.182 and 173.245.58.182.

Mail Servers

certifiedmastertech.com is handled by a single mail server, mx1.certifiedmastertech.com.

mx1.certifiedmastertech.com points to a single IP: 96.30.7.144.

certifiedmastertech.com - robtex.com