CF1760840244819-tsm20251017082432

NSLIST.NET - 4optimal.de

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4optimal.de checked at 2025-10-19T02:17:24.799Z 310ms 99/99/99 100% R:19

4optimal.de

MXmail.4optimal.de
A91.204.46.48🇩🇪 netcup GmbH
PTRmx2e30.netcup.net
MXmx2e30.netcup.net
A2a03:4000:0:3b0:3840:e0ff:fe17:54b3 🇩🇪 netcup GmbH
PTRmx2e30.netcup.net
A91.204.46.48🇩🇪 netcup GmbH
PTRmx2e30.netcup.net
NSroot-dns.netcup.net
A2a03:4000:0:1::e1e1 🇩🇪 netcup GmbH
PTRroot-dns.netcup.net
A46.38.225.225🇩🇪 netcup GmbH
PTRroot-dns.netcup.net
NSsecond-dns.netcup.net
A2a03:4000:2:24b::c7c7 🇩🇪 netcup GmbH
PTRsecond-dns.netcup.net
A37.221.199.199🇩🇪 netcup GmbH
PTRsecond-dns.netcup.net
NSthird-dns.netcup.net
A2a03:4001:0:106::3f44 🇩🇪 netcup GmbH
PTRthird-dns.netcup.net
A188.68.63.68🇩🇪 netcup GmbH
PTRthird-dns.netcup.net
A2a03:4000:30:c265::15:510 🇩🇪 netcup GmbH
A91.204.46.46🇩🇪 netcup GmbH
PTRa2e2e.netcup.net

de

NSa.nic.de
NSf.nic.de
NSz.nic.de
NSl.de.net
NSn.de.net
NSs.de.net

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Starts with same word

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AI analysis

4optimal.de is the parent of v3a.4optimal.de, mail.4optimal.de and o3.4optimal.de.

4optimal.de resolves to two IP numbers: 2a03:4000:30:c265::15:510 and 91.204.46.46.

other host names including humanchip.de, richterb.net, alural.de, werkzeug-gruppe.de and ruup.de share IP numbers with 4optimal.de.

4optimal.de is delegated to three name servers root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

4optimal.de at least partially shares name servers with other domains, for instance ecoci.de, cps.de, rosch-consulting.de, geuner-networks.de and 4sich.de.

Host names with two IP numbers:

root-dns.netcup.net points to: 2a03:4000:0:1::e1e1 and 46.38.225.225.

second-dns.netcup.net points to: 2a03:4000:2:24b::c7c7 and 37.221.199.199.

third-dns.netcup.net points to: 2a03:4001:0:106::3f44 and 188.68.63.68.

Two mail servers handle 4optimal.de: mail.4optimal.de and mx2e30.netcup.net.

4optimal.de shares some mail servers with other domains, at least partially, for instance dobesch.de, mcgoofys.de, familienplaner.at, eboarder.de and e-gosch.de.

these mail servers are commonly used with the mail servers mail.dobesch.de.

Host names with two IP numbers: mx2e30.netcup.net points to 2a03:4000:0:3b0:3840:e0ff:fe17:54b3 and 91.204.46.48.

Host names with one IP number: mail.4optimal.de points to 91.204.46.48.

Host names that point to 91.204.46.48: mx2e30.netcup.net and mail.4optimal.de.

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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pjjFxRv CF johedugfp 2025-10-19