`firstpreferred.com`

DNSSEC	⚠️ Not signed
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`firstpreferred-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c803::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr21cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm6pr05cu00404.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr05cu00301.inbound.protection.outlook.com`
		A	52.101.9.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.41.26^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01702.inbound.protection.outlook.com`
		A	52.101.41.54^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00506.inbound.protection.outlook.com`
		A	52.101.50.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00605.inbound.protection.outlook.com`
TXT	`MS=ms85836016`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2384722871

`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=1774391212

PTR for

207.159.51.66.in-addr.arpa

Same first word

firstpreferred.com

firstpreferred.biz

firstpreferred.us

DNS History

10 records (5 active, 5 former)

●NScuritiba.ns.porkbun.com2026-03-24 → 2026-03-24 · 2 obs

○ 2018-02-14 18:44:22
● 2026-03-24 22:56:42

●NSfortaleza.ns.porkbun.com2026-03-24 → 2026-03-24 · 2 obs

○ 2018-02-14 18:44:22
● 2026-03-24 22:56:42

●NSmaceio.ns.porkbun.com2026-03-24 → 2026-03-24 · 2 obs

○ 2018-02-14 18:44:22
● 2026-03-24 22:56:42

○NSns1.mimutual.com2015-07-24 → 2018-02-14 · 3 obs

● 2015-07-24 10:44:56
● 2018-02-14 18:44:22
○ 2026-03-24 22:56:42

○NSns1.ussignalcom.net2015-07-24 → 2018-02-14 · 3 obs

● 2015-07-24 10:44:56
● 2018-02-14 18:44:22
○ 2026-03-24 22:56:42

○NSns2.ussignalcom.net2015-07-24 → 2018-02-14 · 3 obs

● 2015-07-24 10:44:56
● 2018-02-14 18:44:22
○ 2026-03-24 22:56:42

●NSsalvador.ns.porkbun.com2026-03-24 → 2026-03-24 · 2 obs

○ 2018-02-14 18:44:22
● 2026-03-24 22:56:42

●MXfirstpreferred-com.mail.protection.outlook.com2017-02-12 → 2026-03-24 · 3 obs

○ 2016-05-03 09:07:04
● 2017-02-12 23:05:56
● 2026-03-24 22:56:42

○MXmail.mailroute.net2015-07-24 → 2016-05-03 · 4 obs

● 2015-07-24 10:44:56
● 2016-05-03 09:07:04
○ 2017-02-12 23:05:56
○ 2026-03-24 22:56:42

○A66.51.159.2142015-07-24 → 2018-02-14 · 3 obs

● 2015-07-24 10:44:56
● 2018-02-14 18:44:22
○ 2026-03-24 22:56:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
firstpreferred.com	maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com	8 records

✅ Authoritative Response

Server:173.245.58.37

NS records: maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstpreferred.com (unsigned zone)

⏱️ Timing

Total: 171ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	1	`firstpreferred-com.mail.protection.outlo`
TXT	2	`MS=ms85836016, v=spf1 include:spf.protection.outlook.co`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (maceio.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com...)

Analysis

Name Servers

firstpreferred.com is delegated to four name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

firstpreferred.com at least partially shares name servers with other domains, for instance inco.cc, carrickfergus.org, yaamail.com, mollysmtview.com and dkontaris.com.