zelnick.dev - dns.ninja

`zelnick.dev`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3032::6815:4104^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:8aae^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.65.4^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.138.174^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aspen.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:266d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aspen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c26d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aspen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:226d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aspen.ns.cloudflare.com`
		A	108.162.194.109^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aspen.ns.cloudflare.com`
		A	162.159.38.109^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aspen.ns.cloudflare.com`
		A	172.64.34.109^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aspen.ns.cloudflare.com`
NS	`theo.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b90^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c190^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`theo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2190^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`theo.ns.cloudflare.com`
		A	108.162.193.144^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	172.64.33.144^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	173.245.59.144^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=3nG2fMtX4Plhz3SD`
TXT	`keybase-site-verification=RWBKsqMksPLEuf-cFbs2-Fe7wNhOdfPatxzguk7CcOU`
TXT	`openpgp4fpr:4B5640333BA17168146867FD693BF6E258B852B8`
TXT	`v=spf1 include:icloud.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.65.4, 172.67.138.174
		IPv6 hints	2606:4700:3032::6815:4104, 2606:4700:3034::ac43:8aae
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com
SOA	`aspen.ns.cloudflare.com`dns@cloudflare.com serial=2407198049

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Subdomains

www.zelnick.dev

Same first word

zelnick.biz

zelnick.dev

Similar names

czelink.com

czelnik.de

DNS History

10 records (8 active, 2 former)

●NSaspen.ns.cloudflare.com2026-03-28 → 2026-07-07 · 2 obs

● 2026-03-28 14:43:16
● 2026-07-07 23:27:02

●NStheo.ns.cloudflare.com2026-03-28 → 2026-07-07 · 2 obs

● 2026-03-28 14:43:16
● 2026-07-07 23:27:02

●MXmx01.mail.icloud.com2026-03-28 → 2026-07-07 · 2 obs

● 2026-03-28 14:43:16
● 2026-07-07 23:27:02

●MXmx02.mail.icloud.com2026-03-28 → 2026-07-07 · 2 obs

● 2026-03-28 14:43:16
● 2026-07-07 23:27:02

●A104.21.65.42026-03-28 → 2026-07-07 · 2 obs

● 2026-03-28 14:43:16
● 2026-07-07 23:27:02

●A172.67.138.1742026-03-28 → 2026-07-07 · 2 obs

● 2026-03-28 14:43:16
● 2026-07-07 23:27:02

○A2606:4700:3030::6815:41042026-03-28 → 2026-03-28 · 2 obs

● 2026-03-28 14:43:16
○ 2026-07-07 23:27:02

●A2606:4700:3032::6815:41042026-07-07 → 2026-07-07 · 2 obs

○ 2026-03-28 14:43:16
● 2026-07-07 23:27:02

○A2606:4700:3033::ac43:8aae2026-03-28 → 2026-03-28 · 2 obs

● 2026-03-28 14:43:16
○ 2026-07-07 23:27:02

●A2606:4700:3034::ac43:8aae2026-07-07 → 2026-07-07 · 2 obs

○ 2026-03-28 14:43:16
● 2026-07-07 23:27:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
zelnick.dev	theo.ns.cloudflare.com, aspen.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.144

NS records: theo.ns.cloudflare.com, aspen.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 442ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.65.4, 172.67.138.174`
AAAA	2	`2606:4700:3032::6815:4104, 2606:4700:3034::ac43:8aae`
NS	2	`aspen.ns.cloudflare.com, theo.ns.cloudflare.com`
MX	2	`mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)`
TXT	4	`apple-domain=3nG2fMtX4Plhz3SD, keybase-site-verification=RWBKsqMksPLEuf...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aspen.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

www.zelnick.dev is delegated beneath zelnick.dev.

IP Addresses

zelnick.dev points to the four IP addresses 104.21.65.4, 172.67.138.174, 2606:4700:3032::6815:4104 and 2606:4700:3034::ac43:8aae.

kslyxx.com, gdlnz.cn, gatex.accadandkoka.com and two other host names share IP numbers with zelnick.dev.

Name Servers

zelnick.dev uses two name servers for its delegation: aspen.ns.cloudflare.com and theo.ns.cloudflare.com.

zelnick.dev uses the same name servers as several other domains — among them klingenbergdata.dk, pwndl.com, cvrve.me and two more.

There is at least partial name server overlap between zelnick.dev and other domains — anhdep3x.com, angkakembar1.com, 6686gwapp.com and two more among them.

The name servers gordon.ns.cloudflare.com, nash.ns.cloudflare.com and galilea.ns.cloudflare.com are often found in combination with these name servers.

Hostnames that resolve to 6 IP addresses:

Hostname aspen.ns.cloudflare.com directs to 108.162.194.109, 162.159.38.109 and 172.64.34.109 along with 3 other IP addresses.

Hostname theo.ns.cloudflare.com directs to 108.162.193.144, 172.64.33.144 and 173.245.59.144 along with 3 other IP addresses.

Mail Servers

Mail for zelnick.dev is handled by two mail servers — mx01.mail.icloud.com and mx02.mail.icloud.com.

zelnick.dev uses an identical mail server configuration to several other domains — among them calendino.com, xysta.com, mikedingjan.com and two more.

zelnick.dev and a number of other domains — commissaire-assermentation.ca, asdsolutions.com.au, seqlaw.com and troell.eu among them — share at least some of the same mail servers.

Hostnames that resolve to 6 IP addresses:

Hostname mx01.mail.icloud.com directs to 17.42.251.62, 17.56.9.31 and 17.57.152.5 along with 3 other IP addresses.

Hostname mx02.mail.icloud.com directs to 17.42.251.62, 17.56.9.31 and 17.57.152.5 along with 3 other IP addresses.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.42.251.62 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.56.9.31 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.152.5 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.154.33 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.155.25 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.156.30 IP addresses each.