`doornumber4.com`

DNSSEC	🔒 Signed (DS record present)
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-a1.googledomains.com` ⭐
		A	2001:4860:4802:32::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a1.googledomains.com`
		A	216.239.32.106^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-a1.googledomains.com`
NS	`ns-cloud-a2.googledomains.com`
		A	2001:4860:4802:34::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a2.googledomains.com`
		A	216.239.34.106^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-a2.googledomains.com`
NS	`ns-cloud-a3.googledomains.com`
		A	2001:4860:4802:36::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a3.googledomains.com`
		A	216.239.36.106^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-a3.googledomains.com`
NS	`ns-cloud-a4.googledomains.com`
		A	2001:4860:4802:38::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a4.googledomains.com`
		A	216.239.38.106^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-a4.googledomains.com`
MX	`mail.doornumber4.com` ⭐
		A	81.19.149.80^{🇦🇹 IONOS-AS81.19.144.0/20 World4You.com}
			PTR	`mail25.world4you.com`
TXT	`v=spf1 mx include:spf.w4ymail.at -all`
HTTPS	HTTP/2, HTTP/1.1 ✓ hints match
		IPv4	198.185.159.144, 198.185.159.145, 198.49.23.144, 198.49.23.145
SOA	`ns-cloud-a1.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=1774660557

Subdomains

mail.doornumber4.com

Same first word

doornumber4.com

DNS History

12 records (9 active, 3 former)

●NSns-cloud-a1.googledomains.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

●NSns-cloud-a2.googledomains.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

●NSns-cloud-a3.googledomains.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

●NSns-cloud-a4.googledomains.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

○NSns1.world4you.at2015-07-07 → 2018-08-19 · 4 obs

● 2015-07-07 09:13:34
● 2018-08-19 16:12:24
○ 2026-03-27 15:33:58
○ 2026-03-28 01:31:26

○NSns2.world4you.at2015-07-07 → 2018-08-19 · 4 obs

● 2015-07-07 09:13:34
● 2018-08-19 16:12:24
○ 2026-03-27 15:33:58
○ 2026-03-28 01:31:26

●MXmail.doornumber4.com2015-07-07 → 2026-03-28 · 2 obs

● 2015-07-07 09:13:34
● 2026-03-28 01:31:26

●A198.185.159.1442026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

●A198.185.159.1452026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

●A198.49.23.1442026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

●A198.49.23.1452026-03-27 → 2026-03-28 · 3 obs

○ 2018-08-19 16:12:24
● 2026-03-27 15:33:58
● 2026-03-28 01:31:26

○A81.19.145.362015-07-07 → 2018-08-19 · 4 obs

● 2015-07-07 09:13:34
● 2018-08-19 16:12:24
○ 2026-03-27 15:33:58
○ 2026-03-28 01:31:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net...	-
doornumber4.com	ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.32.106

NS records: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 460ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.185.159.144, 198.49.23.145...`
NS	4	`ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com...`
MX	1	`mail.doornumber4.com (pri: 10)`
TXT	1	`v=spf1 mx include:spf.w4ymail.at -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2",`
SOA	1	`ns-cloud-a1.googledomains.com cloud-dns-`