mathauser.org - dns.ninja

`mathauser.org`

DNSSEC	🔒 Signed (DS record present)
A	185.129.138.40^{🇨🇿 INTERNET-CZ185.129.136.0/22}
		PTR	`40.138.forpsi.net`
NS	`ns.forpsi.net` ⭐
		A	2001:15e8:101:1::c282^{🇨🇿 INTERNET-CZ2001:15e8::/32}
		A	81.2.194.130^{🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s.}
			PTR	`ns.forpsi.net`
NS	`ns.forpsi.cz`
		A	2001:15e8:201:1::d1b9^{🇨🇿 INTERNET-CZ2001:15e8::/32}
			PTR	`ns.forpsi.cz`
		A	81.2.209.185^{🇨🇿 INTERNET-CZ81.2.209.0/24}
			PTR	`ns.forpsi.cz`
NS	`ns.forpsi.it`
		A	2a00:6d41:2:1::5^{🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network}
			PTR	`ns.forpsi.it`
		A	95.110.254.165^{🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network}
			PTR	`host165-254-110-95.serverdedicati.aruba.it`
NS	`ns.forpsi.us`
		A	2a00:6d41:2:1::5^{🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network}
			PTR	`ns.forpsi.it`
		A	95.110.254.165^{🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network}
			PTR	`host165-254-110-95.serverdedicati.aruba.it`
MX	`mxavas.forpsi.com` ⭐
		A	81.2.195.200^{🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s.}
			PTR	`mxavas.forpsi.com`
SOA	`ns.forpsi.net`admin@forpsi.com 2026-08-03 #1

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785976818

Same first word

mathauser.eu

mathauser.net

mathauser.com

mathauser.de

mathauser.org

mathauser.name

Similar names

DNS History

7 records (6 active, 1 former)

●NSns.forpsi.cz2015-08-06 → 2026-08-06 · 2 obs

● 2015-08-06 18:50:10
● 2026-08-06 01:01:36

●NSns.forpsi.it2015-08-06 → 2026-08-06 · 2 obs

● 2015-08-06 18:50:10
● 2026-08-06 01:01:36

●NSns.forpsi.net2015-08-06 → 2026-08-06 · 2 obs

● 2015-08-06 18:50:10
● 2026-08-06 01:01:36

●NSns.forpsi.us2015-08-06 → 2026-08-06 · 2 obs

● 2015-08-06 18:50:10
● 2026-08-06 01:01:36

●MXmxavas.forpsi.com2026-03-05 → 2026-08-06 · 2 obs

● 2026-03-05 21:01:18
● 2026-08-06 01:01:36

●A185.129.138.402026-03-05 → 2026-08-06 · 3 obs

○ 2017-04-05 18:51:50
● 2026-03-05 21:01:18
● 2026-08-06 01:01:36

○A74.220.207.2002015-08-06 → 2017-04-05 · 4 obs

● 2015-08-06 18:50:10
● 2017-04-05 18:51:50
○ 2026-03-05 21:01:18
○ 2026-08-06 01:01:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
mathauser.org	ns.forpsi.cz, ns.forpsi.net, ns.forpsi.us, ns.forpsi.it	-

✅ Authoritative Response

Server:95.110.254.165

NS records: ns.forpsi.cz, ns.forpsi.net, ns.forpsi.us, ns.forpsi.it

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 987ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.129.138.40`
NS	4	`ns.forpsi.cz, ns.forpsi.it...`
MX	1	`mxavas.forpsi.com (pri: 10)`
SOA	1	`ns.forpsi.net admin.forpsi.com`

Analysis

IP Addresses

mathauser.org resolves to just one IP address, 185.129.138.40.

Two other host names, along with isopol.hu, jamesboat.eu and servosystem.sk, also share IP numbers with mathauser.org.

Name Servers

The NS records for mathauser.org point to four name servers: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net and ns.forpsi.us.

There is at least partial name server overlap between mathauser.org and other domains — ninha.cz, hergom.sk, cool-dog.cz and two more among them.

These name servers are routinely deployed together with the name servers ns.forpsi.cn.

The hosts ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net and ns.forpsi.us each have two IP addresses: ns.forpsi.cz has 81.2.209.185 and 2001:15e8:201:1::d1b9, ns.forpsi.it has 95.110.254.165 and 2a00:6d41:2:1::5, ns.forpsi.net has 81.2.194.130 and 2001:15e8:101:1::c282 and ns.forpsi.us has 95.110.254.165 and 2a00:6d41:2:1::5.

ns.forpsi.it and ns.forpsi.us are host names that each point to 2a00:6d41:2:1::5 IP addresses.

ns.forpsi.it and ns.forpsi.us are host names that each point to 95.110.254.165 IP addresses.

Mail Servers

The sole mail server for mathauser.org is mxavas.forpsi.com.

Among the domains sharing a mail server setup with mathauser.org are itall.cz, hadcore.cz, lavonio.ro and two others.

mxavas.forpsi.com resolves to a single IP number: 81.2.195.200.