sys4n.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`sys4n.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:4547^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:ce0c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.69.71^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.12^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brett.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brett.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brett.ns.cloudflare.com`
		A	108.162.193.76^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
		A	172.64.33.76^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
		A	173.245.59.76^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
NS	`jule.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aaf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0af^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jule.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20af^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jule.ns.cloudflare.com`
		A	108.162.192.175^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
		A	172.64.32.175^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
		A	173.245.58.175^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`protonmail-verification=7628cf43eb1afa52f82b55f38d616dad5c5b8529`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.69.71, 172.67.206.12
		IPv6 hints	2606:4700:3032::6815:4547, 2606:4700:3037::ac43:ce0c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=66, name=cloudflare-ech.com
SOA	`brett.ns.cloudflare.com`dns@cloudflare.com serial=2410878120

`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=1786977324

Subdomains

www.sys4n.com

Same first word

sys4n.com

Similar names

4nsys.com

n4sys.com

yssn4.lat

DNS History

17 records (8 active, 9 former)

●NSbrett.ns.cloudflare.com2026-08-16 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-08-16 17:25:22
● 2026-08-17 14:46:18

●NSjule.ns.cloudflare.com2026-08-16 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-08-16 17:25:22
● 2026-08-17 14:46:18

○NSns-second.sys4n.com2015-08-10 → 2017-05-26 · 4 obs

● 2015-08-10 16:09:36
● 2017-05-26 11:54:24
○ 2021-10-05 03:38:56
○ 2026-08-17 14:46:18

○NSns.sys4n.com2015-08-10 → 2017-05-26 · 4 obs

● 2015-08-10 16:09:36
● 2017-05-26 11:54:24
○ 2021-10-05 03:38:56
○ 2026-08-17 14:46:18

○NSns33.domaincontrol.com2021-10-05 → 2021-10-05 · 4 obs

○ 2017-05-26 11:54:24
● 2021-10-05 03:38:56
○ 2026-08-16 17:25:22
○ 2026-08-17 14:46:18

○NSns34.domaincontrol.com2021-10-05 → 2021-10-05 · 4 obs

○ 2017-05-26 11:54:24
● 2021-10-05 03:38:56
○ 2026-08-16 17:25:22
○ 2026-08-17 14:46:18

○MX613778812.pamx1.hotmail.com2021-10-05 → 2021-10-05 · 4 obs

○ 2017-05-26 11:54:24
● 2021-10-05 03:38:56
○ 2026-02-22 16:09:54
○ 2026-08-17 14:46:18

●MXmail.protonmail.ch2026-02-22 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-02-22 16:09:54
● 2026-08-17 14:46:18

○MXmail.sys4n.com2015-08-10 → 2017-05-26 · 4 obs

● 2015-08-10 16:09:36
● 2017-05-26 11:54:24
○ 2021-10-05 03:38:56
○ 2026-08-17 14:46:18

●MXmailsec.protonmail.ch2026-02-22 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-02-22 16:09:54
● 2026-08-17 14:46:18

●A104.21.69.712026-08-16 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-08-16 17:25:22
● 2026-08-17 14:46:18

●A172.67.206.122026-08-16 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-08-16 17:25:22
● 2026-08-17 14:46:18

●A2606:4700:3032::6815:45472026-08-16 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-08-16 17:25:22
● 2026-08-17 14:46:18

●A2606:4700:3037::ac43:ce0c2026-08-16 → 2026-08-17 · 3 obs

○ 2021-10-05 03:38:56
● 2026-08-16 17:25:22
● 2026-08-17 14:46:18

○A46.166.132.1942021-10-05 → 2021-10-05 · 4 obs

○ 2017-05-26 11:54:24
● 2021-10-05 03:38:56
○ 2026-08-16 17:25:22
○ 2026-08-17 14:46:18

○A5.79.106.1032016-07-17 → 2017-05-26 · 5 obs

○ 2016-03-23 04:24:46
● 2016-07-17 03:01:24
● 2017-05-26 11:54:24
○ 2021-10-05 03:38:56
○ 2026-08-17 14:46:18

○A92.222.23.1452015-08-10 → 2016-03-23 · 4 obs

● 2015-08-10 16:09:36
● 2016-03-23 04:24:46
○ 2016-07-17 03:01:24
○ 2026-08-17 14:46:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
sys4n.com	brett.ns.cloudflare.com, jule.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.76

NS records: brett.ns.cloudflare.com, jule.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sys4n.com (unsigned zone)

⏱️ Timing

Total: 165ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.69.71, 172.67.206.12`
AAAA	2	`2606:4700:3032::6815:4547, 2606:4700:3037::ac43:ce0c`
NS	2	`brett.ns.cloudflare.com, jule.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	2	`protonmail-verification=7628cf43eb1afa52, v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brett.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

sys4n.com serves as the parent of www.sys4n.com.

IP Addresses

sys4n.com has four IP addresses: 104.21.69.71, 172.67.206.12, 2606:4700:3032::6815:4547 and 2606:4700:3037::ac43:ce0c.

xxb444.com, gzldrj.com, superboom.net plus two other host names have IP numbers in common with sys4n.com.

Name Servers

sys4n.com is served by two delegated name servers, brett.ns.cloudflare.com and jule.ns.cloudflare.com.

The name server configuration of sys4n.com is shared with other domains, for instance 100mbit.se, gamestream.se, soap2daye.com and two others.

sys4n.com has at least partial name server overlap with other domains, such as streamingcommunityz.ink, dellaadventure.com, govcodex.org and two others.

It is common to see these name servers used together with name servers cortney.ns.cloudflare.com and beau.ns.cloudflare.com.

Hosts with 6 IP addresses each:

brett.ns.cloudflare.com carries IP addresses 108.162.193.76, 172.64.33.76 and 173.245.59.76, with 3 other addresses beyond those.

jule.ns.cloudflare.com carries IP addresses 108.162.192.175, 172.64.32.175 and 173.245.58.175, with 3 other addresses beyond those.

Mail Servers

sys4n.com uses two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

The mail server setup of sys4n.com matches that of other domains such as ethe.fr, jwweatherman.com, zws.me and two others.

At least some of the mail servers used by sys4n.com are shared with other domains: bednar.io, paulgrieselhuber.com, streykatt.com and two others among them.

mail.protonmail.ch and mailsec.protonmail.ch each have three IP addresses — mail.protonmail.ch directs to 176.119.200.128, 185.70.42.128 and 185.205.70.128; mailsec.protonmail.ch directs to 176.119.200.129, 185.70.42.129 and 185.205.70.129.