`firstprinciplesprep.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} ✓ In HTTPS hints
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US} ✓ In HTTPS hints
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US} ✓ In HTTPS hints
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US} ✓ In HTTPS hints
NS	`ns-cloud-d1.googledomains.com` ⭐
		A	2001:4860:4802:32::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d1.googledomains.com`
		A	216.239.32.109^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-d1.googledomains.com`
NS	`ns-cloud-d2.googledomains.com`
		A	2001:4860:4802:34::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d2.googledomains.com`
		A	216.239.34.109^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-d2.googledomains.com`
NS	`ns-cloud-d3.googledomains.com`
		A	2001:4860:4802:36::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d3.googledomains.com`
		A	216.239.36.109^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-d3.googledomains.com`
NS	`ns-cloud-d4.googledomains.com`
		A	2001:4860:4802:38::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d4.googledomains.com`
		A	216.239.38.109^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-d4.googledomains.com`
MX	`mx2.zoho.com` ⭐
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`zoho-verification=zb19335953.zmverify.zoho.com`
HTTPS	HTTP/2, HTTP/1.1 ✓ hints match
		IPv4 hints	198.185.159.144, 198.185.159.145, 198.49.23.144, 198.49.23.145
SOA	`ns-cloud-d1.googledomains.com`cloud-dns-hostmaster@google.com serial=1

`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=1777117716

Same first word

firstprinciplesprep.com

DNS History

11 records (11 active, 0 former)

●NSns-cloud-d1.googledomains.com2026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●NSns-cloud-d2.googledomains.com2026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●NSns-cloud-d3.googledomains.com2026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●NSns-cloud-d4.googledomains.com2026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●MXmx.zoho.com2026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●MXmx2.zoho.com2026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●MXmx3.zoho.com2026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●A198.185.159.1442026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●A198.185.159.1452026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●A198.49.23.1442026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

●A198.49.23.1452026-04-04 → 2026-04-25 · 2 obs

● 2026-04-04 10:36:16
● 2026-04-25 12:01:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
firstprinciplesprep.com	ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.34.109

NS records: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstprinciplesprep.com (unsigned zone)

⏱️ Timing

Total: 430ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.49.23.145, 198.185.159.144...`
NS	4	`ns-cloud-d4.googledomains.com, ns-cloud-d3.googledomains.com...`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	1	`zoho-verification=zb19335953.zmverify.zo`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2",`
SOA	1	`ns-cloud-d1.googledomains.com cloud-dns-`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-d1.googledomains.com, ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com...)

Analysis

IP Addresses

firstprinciplesprep.com resolves to four IP numbers: 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

other host names for instance ariant.ca, grademate.info, kirelis.com, sesequip.net and amazes.co.nz share IP numbers with firstprinciplesprep.com.

Name Servers

firstprinciplesprep.com is delegated to four name servers: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and ns-cloud-d4.googledomains.com.

firstprinciplesprep.com at least partially shares name servers with other domains, for instance coloradoparcels.com, camhila.com, noisiv-pv.de, generationshs.com and ultraline.ca.

Host names with two IP numbers:

Host name ns-cloud-d1.googledomains.com points to: 2001:4860:4802:32::6d and 216.239.32.109.

Host name ns-cloud-d2.googledomains.com points to: 2001:4860:4802:34::6d and 216.239.34.109.

Host name ns-cloud-d3.googledomains.com points to: 2001:4860:4802:36::6d and 216.239.36.109.

Host name ns-cloud-d4.googledomains.com points to: 2001:4860:4802:38::6d and 216.239.38.109.

Mail Servers

firstprinciplesprep.com is handled by three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

firstprinciplesprep.com shares mail servers with other domains at least partially, including danya21.com, efeitohq.com, otimiza.net, skycostume.com and learnclick.net.