CF1759783777503-tsm20251005211530

NSLIST.NET - opt-systems.com

Search for IP or hostnames:

opt-systems.com checked at 2025-10-06T20:49:37.433Z 478ms 95/95/95 100% R:13

opt-systems.com

NSdns1.siel.si
A2a02:28b0:53::53 🇸🇮 SIEL
PTRdns1.siel.si
A46.19.12.12🇸🇮 SIEL
PTRdns1.siel.si
NSdns2.siel.si
A46.19.13.13🇸🇮 SIEL
PTRdns2.siel.si
NSdns3.siel.si
A217.61.252.53🇸🇮 SIEL
PTRdns3.siel.si
MXoptsystems-com0i.mail.protection.outlook.com
A2a01:111:f403:ca04::2 🇮🇪 Microsoft
PTRmail-du2pr03cu00102.inbound.protection.outlook.com
A2a01:111:f403:ca04::5 🇮🇪 Microsoft
PTRmail-db3pr0202cu00205.inbound.protection.outlook.com
A2a01:111:f403:ca04::10 🇮🇪 Microsoft
PTRmail-dbapr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::b 🇳🇱 Microsoft
PTRmail-am7pr05cu00103.inbound.protection.outlook.com
A52.101.68.16🇮🇪 Microsoft
PTRmail-db4pr02cu00400.inbound.protection.outlook.com
A52.101.68.29🇮🇪 Microsoft
PTRmail-dbapr03cu00105.inbound.protection.outlook.com
A52.101.73.2🇳🇱 Microsoft
PTRmail-as9pr07cu00302.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
A185.29.16.100🇸🇮 Zabec.net
PTRnatasa.zabec.net

com

NSa.gtld-servers.net
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net

Starts with same word

Starts similarily

AI analysis

opt-systems.com resolves to one IP number: 185.29.16.100.

other host names including mail.interal.si, www.regina.si, pond.si, sindirela.si and _dc-mx.cdb5869d78bc.compmarket.eu share IP numbers with opt-systems.com.

opt-systems.com is delegated to three name servers dns1.siel.si, dns2.siel.si and dns3.siel.si.

opt-systems.com at least partially shares name servers with other domains, for instance dijaski.net, tatrenutek.si, gmajnica.com, ostervid.si and aquaviva.si.

Host names with two IPs:

dns1.siel.si points to: 2a02:28b0:53::53 and 46.19.12.12.

Host names with one IP:

dns2.siel.si points to: 46.19.13.13.

dns3.siel.si points to: 217.61.252.53.

opt-systems.com is handled by a single mail server, optsystems-com0i.mail.protection.outlook.com.

Host optsystems-com0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::2, 2a01:111:f403:ca04::5, 2a01:111:f403:ca04::10, 2a01:111:f403:ca09::b, 52.101.68.16, 52.101.68.29, 52.101.73.2 and 52.101.73.4.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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tSVThpA CF johedugfp 2025-10-06