s4.dev - dns.ninja

`s4.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:af0e^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:401d^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.64.29^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.14^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`karl.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bbe^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1be^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`karl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21be^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`karl.ns.cloudflare.com`
		A	108.162.193.190^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karl.ns.cloudflare.com`
		A	172.64.33.190^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karl.ns.cloudflare.com`
		A	173.245.59.190^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karl.ns.cloudflare.com`
NS	`tara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tara.ns.cloudflare.com`
		A	108.162.192.225^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tara.ns.cloudflare.com`
		A	172.64.32.225^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tara.ns.cloudflare.com`
		A	173.245.58.225^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tara.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.64.29, 172.67.175.14
		IPv6 hints	2606:4700:3034::ac43:af0e, 2606:4700:3037::6815:401d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=96, name=cloudflare-ech.com
SOA	`karl.ns.cloudflare.com`dns@cloudflare.com serial=2407746863

`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)

Same first word

s4.hu

s4.dev

s4.pl

s4.ru

s4.ag

s4.community

s4.com.br

s4.io

s4.dk

s4.cl

s4.no

s4.eu

s4.agency

s4.co.za

s4.ca

s4.network

s4.com

s4.kz

s4.fr

s4.cz

s4.by

s4.com.ua

s4.de

s4.is

s4.be

s4.sp.gov.br

s4.ro

s4.co.uk

s4.world

s4.eng.br

s4.cn

s4.solutions

s4.ddns.net

Similar names

4s.pl.ua

4s.cl

4s.ai

4s.org

4s.org.sg

4s.eu

4s.be

4s.io

4s.cc

4s.com.br

4s.wiki

4s.lv

4s.world

4s.link

4s.by

4s.cz

4s.su

4s.ca

4s.sk

4s.cn

4s.hk

4s.com

4s.game

4s.com.pl

4s.ae

4s.fi

4s.lt

4s.com.tr

4s.no

4s.nu

4s.hu

4s.tv

4s.biz

4s.pl

4s.si

4s.cx

4s.dk

4s.fr

DNS History

7 records (6 active, 1 former)

●NSkarl.ns.cloudflare.com2026-02-19 → 2026-07-04 · 2 obs

● 2026-02-19 12:01:02
● 2026-07-04 22:40:48

●NStara.ns.cloudflare.com2026-02-19 → 2026-07-04 · 2 obs

● 2026-02-19 12:01:02
● 2026-07-04 22:40:48

●A104.21.64.292026-02-19 → 2026-07-04 · 2 obs

● 2026-02-19 12:01:02
● 2026-07-04 22:40:48

●A172.67.175.142026-02-19 → 2026-07-04 · 2 obs

● 2026-02-19 12:01:02
● 2026-07-04 22:40:48

○A2606:4700:3033::ac43:af0e2026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 12:01:02
○ 2026-07-02 14:31:36
○ 2026-07-04 22:40:48

●A2606:4700:3034::ac43:af0e2026-07-02 → 2026-07-04 · 3 obs

○ 2026-02-19 12:01:02
● 2026-07-02 14:31:36
● 2026-07-04 22:40:48

●A2606:4700:3037::6815:401d2026-02-19 → 2026-07-04 · 2 obs

● 2026-02-19 12:01:02
● 2026-07-04 22:40:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
s4.dev	tara.ns.cloudflare.com, karl.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.225

NS records: tara.ns.cloudflare.com, karl.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for s4.dev (unsigned zone)

⏱️ Timing

Total: 437ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.64.29, 172.67.175.14`
AAAA	2	`2606:4700:3034::ac43:af0e, 2606:4700:3037::6815:401d`
NS	2	`karl.ns.cloudflare.com, tara.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`karl.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

IP Addresses

s4.dev resolves to four IP addresses: 104.21.64.29, 172.67.175.14, 2606:4700:3034::ac43:af0e and 2606:4700:3037::6815:401d.

www.eh(0x706f726e).com, fstianyu.net, cetax.com.br and two other host names share IP numbers with s4.dev.

Name Servers

s4.dev uses two name servers for its delegation: karl.ns.cloudflare.com and tara.ns.cloudflare.com.

s4.dev uses the same name servers as several other domains — among them hy-veesurvey.com, nissan.com.mx, helpfulsmileblog.com and two more.

s4.dev shares at least some of its name servers with other domains, including makemyhobby.com, tiosmedikal.com.tr, zytylw.cn and two others.

These name servers are frequently seen alongside the name servers sandy.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname karl.ns.cloudflare.com directs to 108.162.193.190, 172.64.33.190 and 173.245.59.190 along with 3 other IP addresses.

Hostname tara.ns.cloudflare.com directs to 108.162.192.225, 172.64.32.225 and 173.245.58.225 along with 3 other IP addresses.