WWW.RTSAK.COM - system4u.com

Search for IP or hostnames:

system4u.com checked at 2025-09-30T00:44:38.294Z 218ms 134/134/134 100% R:17

`system4u.com`

NS	`quentin.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c07 ^{🇺🇸 Cloudflare}
			PTR	`quentin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c307 ^{🇨🇷 Cloudflare}
			PTR	`quentin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2307 ^{🇺🇸 Cloudflare}
			PTR	`quentin.ns.cloudflare.com`
		A	108.162.195.7^{🇺🇸 Cloudflare}
			PTR	`quentin.ns.cloudflare.com`
		A	162.159.44.7^Cloudflare
			PTR	`quentin.ns.cloudflare.com`
		A	172.64.35.7^{🇺🇸 Cloudflare}
			PTR	`quentin.ns.cloudflare.com`
NS	`thea.ns.cloudflare.com`
		A	2606:4700:50::a29f:26f7 ^{🇺🇸 Cloudflare}
			PTR	`thea.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f7 ^{🇨🇷 Cloudflare}
			PTR	`thea.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f7 ^{🇺🇸 Cloudflare}
			PTR	`thea.ns.cloudflare.com`
		A	108.162.194.247^{🇺🇸 Cloudflare}
			PTR	`thea.ns.cloudflare.com`
		A	162.159.38.247^Cloudflare
			PTR	`thea.ns.cloudflare.com`
		A	172.64.34.247^{🇺🇸 Cloudflare}
			PTR	`thea.ns.cloudflare.com`
MX	`system4u-com.mail.protection.outlook.com`
		A	2a01:111:f403:ca04::a ^{🇮🇪 Microsoft}
			PTR	`mail-du0pr03cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::b ^{🇮🇪 Microsoft}
			PTR	`mail-dbbpr03cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::c ^{🇮🇪 Microsoft}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::d ^{🇮🇪 Microsoft}
			PTR	`mail-db6pr03cu00105.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.1^{🇳🇱 Microsoft}
			PTR	`mail-am3pr04cu00501.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.6^{🇳🇱 Microsoft}
			PTR	`mail-am6pr04cu00306.inbound.protection.outlook.com`
A	37.9.175.165^{🇸🇰 Websupport}
		PTR	`ing.r3.websupport.sk`

`com`

	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`

Up

spamfilter02.system4u.com

www.system4u.com

Starts with same word

system4u.biz

system4u.in

system4u.info

system4u.mobi

system4u.com

system4u.cz

system4u.eu

system4u.co

system4u.de

Starts similarily

system4u.cz

system4u.eu

system4u.co

system4u.de

system4u.biz

system4u.in

system4u.info

system4u.mobi

system4u.com

AI analysis

system4u.com is a parent of spamfilter02.system4u.com and www.system4u.com.

system4u.com resolves to one IP number: 37.9.175.165.

Other host names, for instance jkcarsteam.com, kveton.cz, alupodev.cz, directslot.com and krizkovsky.cz share IP numbers with system4u.com.

system4u.com's delegation uses two name servers: quentin.ns.cloudflare.com and thea.ns.cloudflare.com.

system4u.com uses the same name server setup as other domains, such as d-g-s.ru, shop-igenics.com, system4u.cz, us-us-primebiome.us and retsneakers.com.

system4u.com at least partially shares name servers with other domains, including hectorpablos.com, kidswonderland.cn, esheled.com, easyoffice.id and chobebe.com.

These name servers are commonly used together with the name servers ezra.ns.cloudflare.com, yew.ns.cloudflare.com, shubhi.ns.cloudflare.com and elsa.ns.cloudflare.com.

Host names with six IP numbers:

quentin.ns.cloudflare.com points to 2606:4700:58::a29f:2c07, 2803:f800:50::6ca2:c307, 2a06:98c1:50::ac40:2307, 108.162.195.7, 162.159.44.7 and 172.64.35.7.

thea.ns.cloudflare.com points to 2606:4700:50::a29f:26f7, 2803:f800:50::6ca2:c2f7, 2a06:98c1:50::ac40:22f7, 108.162.194.247, 162.159.38.247 and 172.64.34.247.

A single mail server handles system4u.com, system4u-com.mail.protection.outlook.com.

Host system4u-com.mail.protection.outlook.com points to eight IPs: 2a01:111:f403:ca04::a, 2a01:111:f403:ca04::b, 2a01:111:f403:ca04::c, 2a01:111:f403:ca04::d, 52.101.68.36, 52.101.73.1, 52.101.73.4 and 52.101.73.6.

dbq