`criticalservers.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:23de^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b43d^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.35.222^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.180.61^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`kinsley.ns.cloudflare.com`
		A	2606:4700:50::a29f:264b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kinsley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c24b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kinsley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:224b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kinsley.ns.cloudflare.com`
		A	108.162.194.75^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kinsley.ns.cloudflare.com`
		A	162.159.38.75^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kinsley.ns.cloudflare.com`
		A	172.64.34.75^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kinsley.ns.cloudflare.com`
MX	`mail.criticalservers.com` ⭐
		A	45.82.120.41^{🇩🇪 SYNLINQ45.82.120.0/22 ROETH & BECK GbR}
			PTR	`motivator.hostsuperstore.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.35.222, 172.67.180.61
		IPv6 hints	2606:4700:3034::6815:23de, 2606:4700:3037::ac43:b43d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=109, name=cloudflare-ech.com
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2400260716

`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=1778502161

Subdomains

ns4.criticalservers.com

mail.criticalservers.com

Same first word

criticalservers.com

DNS History

12 records (7 active, 5 former)

●NSharlan.ns.cloudflare.com2026-04-24 → 2026-05-11 · 3 obs

○ 2018-08-30 15:38:06
● 2026-04-24 17:09:18
● 2026-05-11 12:27:58

●NSkinsley.ns.cloudflare.com2026-04-24 → 2026-05-11 · 3 obs

○ 2018-08-30 15:38:06
● 2026-04-24 17:09:18
● 2026-05-11 12:27:58

○NSns.hosteurope.com2015-07-24 → 2018-08-30 · 4 obs

● 2015-07-24 19:50:14
● 2018-08-30 15:38:06
○ 2026-04-24 17:09:18
○ 2026-05-11 12:27:58

○NSns2.hosteurope.com2015-07-24 → 2018-08-30 · 4 obs

● 2015-07-24 19:50:14
● 2018-08-30 15:38:06
○ 2026-04-24 17:09:18
○ 2026-05-11 12:27:58

●MXmail.criticalservers.com2015-07-24 → 2026-05-11 · 2 obs

● 2015-07-24 19:50:14
● 2026-05-11 12:27:58

●A104.21.35.2222026-04-24 → 2026-05-11 · 3 obs

○ 2018-08-30 15:38:06
● 2026-04-24 17:09:18
● 2026-05-11 12:27:58

●A172.67.180.612026-04-24 → 2026-05-11 · 3 obs

○ 2018-08-30 15:38:06
● 2026-04-24 17:09:18
● 2026-05-11 12:27:58

○A198.100.145.352015-07-24 → 2015-12-06 · 4 obs

● 2015-07-24 19:50:14
● 2015-12-06 11:08:12
○ 2016-04-04 15:51:24
○ 2026-05-11 12:27:58

●A2606:4700:3034::6815:23de2026-04-24 → 2026-05-11 · 3 obs

○ 2018-08-30 15:38:06
● 2026-04-24 17:09:18
● 2026-05-11 12:27:58

●A2606:4700:3037::ac43:b43d2026-04-24 → 2026-05-11 · 3 obs

○ 2018-08-30 15:38:06
● 2026-04-24 17:09:18
● 2026-05-11 12:27:58

○A31.220.43.872018-08-30 → 2018-08-30 · 4 obs

○ 2016-11-19 01:58:06
● 2018-08-30 15:38:06
○ 2026-04-24 17:09:18
○ 2026-05-11 12:27:58

○A89.38.146.1472016-04-04 → 2016-11-19 · 5 obs

○ 2015-12-06 11:08:12
● 2016-04-04 15:51:24
● 2016-11-19 01:58:06
○ 2018-08-30 15:38:06
○ 2026-05-11 12:27:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
criticalservers.com	kinsley.ns.cloudflare.com, harlan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.75

NS records: kinsley.ns.cloudflare.com, harlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for criticalservers.com (unsigned zone)

⏱️ Timing

Total: 389ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.180.61, 104.21.35.222`
AAAA	2	`2606:4700:3034::6815:23de, 2606:4700:3037::ac43:b43d`
NS	2	`harlan.ns.cloudflare.com, kinsley.ns.cloudflare.com`
MX	1	`mail.criticalservers.com (pri: 10)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (kinsley.ns.cloudflare.com, kinsley.ns.cloudflare.com, kinsley.ns.cloudflare.com...)

Analysis

Hierarchy

criticalservers.com is a parent of ns4.criticalservers.com and mail.criticalservers.com.

IP Addresses

criticalservers.com maps to four IP numbers: 2606:4700:3034::6815:23de, 2606:4700:3037::ac43:b43d, 104.21.35.222 and 172.67.180.61.

Other host names, for instance bakupost.az, mediasminute.com, livelyn.net, movingtahiti.com and mstrwatches.nl share IP numbers with criticalservers.com.

Name Servers

Two name servers harlan.ns.cloudflare.com and kinsley.ns.cloudflare.com are delegated to criticalservers.com.

criticalservers.com uses the same name server configuration as other domains, such as guestverifyportal.com, guestaverifyportal.com, aa8898.com, guestaformahub.com and confirmstayonline.com.

criticalservers.com at least partially shares name servers with other domains such as meta-zorin.pages.dev, tidevcn.com, byokan.net, healthpluscogni.com and chowre.com.

These name servers are commonly used alongside nena.ns.cloudflare.com, rodney.ns.cloudflare.com and jule.ns.cloudflare.com.

Host names with six IP numbers: Host name harlan.ns.cloudflare.com points to 2606:4700:58::a29f:2cfa, 2803:f800:50::6ca2:c3fa, 2a06:98c1:50::ac40:23fa, 108.162.195.250, 162.159.44.250 and 172.64.35.250; host name kinsley.ns.cloudflare.com points to 2606:4700:50::a29f:264b, 2803:f800:50::6ca2:c24b, 2a06:98c1:50::ac40:224b, 108.162.194.75, 162.159.38.75 and 172.64.34.75.

Mail Servers

criticalservers.com is handled by a single mail server, mail.criticalservers.com.

mail.criticalservers.com points to one IP number: 45.82.120.41.

criticalservers.com - robtex.com