🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`firstclassfunction.com`

DNSSEC	⚠️ Not signed
A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
NS	`dns1.p03.nsone.net` ⭐
		A	2620:4d:4000:6259:7:3:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p03.nsone.net`
		A	198.51.44.3^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p03.nsone.net`
NS	`dns2.p03.nsone.net`
		A	2a00:edc0:6259:7:3::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p03.nsone.net`
		A	198.51.45.3^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns2.p03.nsone.net`
NS	`dns3.p03.nsone.net`
		A	2620:4d:4000:6259:7:3:0:3^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns3.p03.nsone.net`
		A	198.51.44.67^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns3.p03.nsone.net`
NS	`dns4.p03.nsone.net`
		A	2a00:edc0:6259:7:3::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p03.nsone.net`
		A	198.51.45.67^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns4.p03.nsone.net`
NS	`ns01.squarespacedns.com`
		A	45.54.22.1^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns01.squarespacedns.com`
NS	`ns02.squarespacedns.com`
		A	45.54.22.65^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns02.squarespacedns.com`
NS	`ns03.squarespacedns.com`
		A	45.54.22.129^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns03.squarespacedns.com`
NS	`ns04.squarespacedns.com`
		A	45.54.22.193^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns04.squarespacedns.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
SOA	`dns1.p03.nsone.net`hostmaster@nsone.net serial=1634607847

`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=1791201539

Same first word

firstclassfunction.com

Previous names

Next names

DNS History

24 records (17 active, 7 former)

●NSdns1.p03.nsone.net2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●NSdns2.p03.nsone.net2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●NSdns3.p03.nsone.net2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●NSdns4.p03.nsone.net2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

○NSns-187-a.gandi.net2018-08-17 → 2018-08-17 · 3 obs

● 2018-08-17 09:15:14
○ 2026-09-08 22:22:32
○ 2026-10-05 11:59:54

○NSns-21-b.gandi.net2018-08-17 → 2018-08-17 · 3 obs

● 2018-08-17 09:15:14
○ 2026-09-08 22:22:32
○ 2026-10-05 11:59:54

○NSns-243-c.gandi.net2018-08-17 → 2018-08-17 · 3 obs

● 2018-08-17 09:15:14
○ 2026-09-08 22:22:32
○ 2026-10-05 11:59:54

●NSns01.squarespacedns.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●NSns02.squarespacedns.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●NSns03.squarespacedns.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●NSns04.squarespacedns.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

○NSns1.gandi.net2018-08-17 → 2018-08-17 · 3 obs

● 2018-08-17 09:15:14
○ 2026-09-08 22:22:32
○ 2026-10-05 11:59:54

●MXalt1.aspmx.l.google.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●MXalt2.aspmx.l.google.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●MXalt3.aspmx.l.google.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●MXalt4.aspmx.l.google.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●MXaspmx.l.google.com2026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

○MXfb.mail.gandi.net2018-08-17 → 2018-08-17 · 3 obs

● 2018-08-17 09:15:14
○ 2026-09-08 22:22:32
○ 2026-10-05 11:59:54

○MXspool.mail.gandi.net2018-08-17 → 2018-08-17 · 3 obs

● 2018-08-17 09:15:14
○ 2026-09-08 22:22:32
○ 2026-10-05 11:59:54

●A198.185.159.1442026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●A198.185.159.1452026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●A198.49.23.1442026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

●A198.49.23.1452026-09-08 → 2026-10-05 · 3 obs

○ 2018-08-17 09:15:14
● 2026-09-08 22:22:32
● 2026-10-05 11:59:54

○A217.70.184.382018-08-17 → 2018-08-17 · 3 obs

● 2018-08-17 09:15:14
○ 2026-09-08 22:22:32
○ 2026-10-05 11:59:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net...	-
firstclassfunction.com	dns1.p03.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net, dns4.p03.nsone.net...	4 records

✅ Authoritative Response

Server:198.51.44.3

NS records: dns1.p03.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net, dns4.p03.nsone.net, ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstclassfunction.com (unsigned zone)

⏱️ Timing

Total: 704ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.185.159.145, 198.49.23.144...`
NS	8	`dns1.p03.nsone.net, dns2.p03.nsone.net...`
MX	5	`aspmx.l.google.com (pri: 1), alt2.aspmx.l.google.com (pri: 5)...`
SOA	1	`dns1.p03.nsone.net hostmaster.nsone.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com...)

Analysis

IP Addresses

firstclassfunction.com directs to four IP numbers, which are 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

Among the host names that share IP numbers with firstclassfunction.com are ethilex.pl, nickstrips.com, remonty-gumieniak.com and two others.

Name Servers

firstclassfunction.com delegates authority to 8 name servers: ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com plus 5 other.

There is at least partial name server overlap between firstclassfunction.com and other domains — grealishmczeal.com, synergyvetspecialists.com, bwisesalon.com and two more among them.

These name servers regularly appear alongside ns04.squarespacedns.com, dns1.p03.nsone.net, dns3.p03.nsone.net and 7 other name servers in NS record sets.

Hosts with two IP numbers each:

dns1.p03.nsone.net directs traffic to 198.51.44.3 and 2620:4d:4000:6259:7:3:0:1.

dns2.p03.nsone.net directs traffic to 198.51.45.3 and 2a00:edc0:6259:7:3::2.

dns3.p03.nsone.net directs traffic to 198.51.44.67 and 2620:4d:4000:6259:7:3:0:3.

dns4.p03.nsone.net directs traffic to 198.51.45.67 and 2a00:edc0:6259:7:3::4.

Hosts that resolve to one IP address:

ns01.squarespacedns.com has the IP address 45.54.22.1.

ns02.squarespacedns.com has the IP address 45.54.22.65.

ns03.squarespacedns.com has the IP address 45.54.22.129.

ns04.squarespacedns.com has the IP address 45.54.22.193.

Mail Servers

Five mail servers handle firstclassfunction.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

firstclassfunction.com shares at least some of its mail servers with other domains — for example muzsaszepsegszalon.hu, rhymeswithunique.com, eclipseprojects.org and two more.

It is common to find these mail servers paired with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.

Hosts with two IP numbers each:

aspmx.l.google.com directs traffic to 64.233.180.27 and 2607:f8b0:4004:c17::1b.

alt1.aspmx.l.google.com directs traffic to 192.178.234.27 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.