`mastertechcertified.com`

DNSSEC	⚠️ Not signed
NS	`ns5.assurant.com` ⭐ ⚠️ Not in parent delegation
		A	172.64.53.247^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns0054.secondary.cloudflare.com` ⚠️ Not in zone NS records
		A	2606:4700:51::a29f:2037^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0054.secondary.cloudflare.com`
		A	162.159.32.55^{Cloudflare162.159.32.0/23 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0054.secondary.cloudflare.com`
NS	`ns0209.secondary.cloudflare.com` ⚠️ Not in zone NS records
		A	2606:4700:59::a29f:2154^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0209.secondary.cloudflare.com`
		A	162.159.33.84^{Cloudflare162.159.32.0/23 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0209.secondary.cloudflare.com`
NS	`ns6.assurant.com` ⚠️ Not in parent delegation
		A	172.64.52.57^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`v=spf1 -all`
SOA	`ns5.assurant.com`network@assurant.com serial=14

`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=1774839912

Same first word

mastertechcertified.com

DNS History

8 records (4 active, 4 former)

●NSns0054.secondary.cloudflare.com2026-03-28 → 2026-03-30 · 3 obs

○ 2017-04-20 07:24:16
● 2026-03-28 01:43:16
● 2026-03-30 03:19:10

●NSns0209.secondary.cloudflare.com2026-03-28 → 2026-03-30 · 3 obs

○ 2017-04-20 07:24:16
● 2026-03-28 01:43:16
● 2026-03-30 03:19:10

○NSns35.worldnic.com2015-06-15 → 2017-04-20 · 4 obs

● 2015-06-15 01:35:32
● 2017-04-20 07:24:16
○ 2026-03-28 01:43:16
○ 2026-03-30 03:19:10

○NSns36.worldnic.com2015-06-15 → 2017-04-20 · 4 obs

● 2015-06-15 01:35:32
● 2017-04-20 07:24:16
○ 2026-03-28 01:43:16
○ 2026-03-30 03:19:10

●NSns5.assurant.com2026-03-28 → 2026-03-30 · 3 obs

○ 2017-04-20 07:24:16
● 2026-03-28 01:43:16
● 2026-03-30 03:19:10

●NSns6.assurant.com2026-03-28 → 2026-03-30 · 3 obs

○ 2017-04-20 07:24:16
● 2026-03-28 01:43:16
● 2026-03-30 03:19:10

○MXp.webcom.ctmail.com2015-12-29 → 2017-04-20 · 4 obs

● 2015-12-29 06:18:50
● 2017-04-20 07:24:16
○ 2026-03-28 01:43:16
○ 2026-03-30 03:19:10

○A208.91.197.272015-06-15 → 2017-04-20 · 4 obs

● 2015-06-15 01:35:32
● 2017-04-20 07:24:16
○ 2026-03-28 01:43:16
○ 2026-03-30 03:19:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
mastertechcertified.com	ns0054.secondary.cloudflare.com, ns0209.secondary.cloudflare.com	4 records

✅ Authoritative Response

Server:162.159.33.84

NS records: ns0054.secondary.cloudflare.com, ns0209.secondary.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mastertechcertified.com (unsigned zone)

⏱️ Timing

Total: 102ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns5.assurant.com, ns6.assurant.com`
TXT	1	`v=spf1 -all`
SOA	1	`ns5.assurant.com network.assurant.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns0054.secondary.cloudflare.com, ns0054.secondary.cloudflare.com, ns0209.secondary.cloudflare.com...)

Analysis

Name Servers

mastertechcertified.com delegates to four name servers: ns5.assurant.com, ns6.assurant.com, ns0054.secondary.cloudflare.com and ns0209.secondary.cloudflare.com.

mastertechcertified.com at least partially shares name servers with other domains, for instance wwwassurantproviders.com, emailextendedserviceplans.com, hylamobile.com, halifax-card-protection.co.uk and assurant.es.

Host names with two IP numbers:

ns0054.secondary.cloudflare.com points to: 2606:4700:51::a29f:2037 and 162.159.32.55

ns0209.secondary.cloudflare.com points to: 2606:4700:59::a29f:2154 and 162.159.33.84

Host names with one IP number:

ns5.assurant.com points to: 172.64.53.247

ns6.assurant.com points to: 172.64.52.57

mastertechcertified.com - robtex.com