`alter.su`

DNSSEC	⚠️ Not signed
A	185.40.4.152^{🇷🇺 UNSPECIFIED160.0.0.0/3}
		PTR	`free.ds`
NS	`firstbytedns.net` ⭐
NS	`ns1.firstbytedns.net`
		A	2a04:5200:ffff::320b^{🇸🇨 FIRSTBYTE-AS2a04:5200:ffff::/48}
			PTR	`free.ds`
		A	185.104.248.26^{🇷🇺 FIRSTBYTE-AS185.104.248.0/24}
			PTR	`ns1.firstbytedns.net`
NS	`ns1.firstbytedns.ru` ⚠️ Not in parent delegation
		A	2a04:5200:ffff::320b^{🇸🇨 FIRSTBYTE-AS2a04:5200:ffff::/48}
			PTR	`free.ds`
		A	185.104.248.26^{🇷🇺 FIRSTBYTE-AS185.104.248.0/24}
			PTR	`ns1.firstbytedns.net`
NS	`ns2.firstbytedns.net`
		A	2a04:5200:ffff::35de^{🇸🇨 FIRSTBYTE-AS2a04:5200:ffff::/48}
			PTR	`ns2.firstbytedns.net`
		A	185.104.248.27^{🇷🇺 FIRSTBYTE-AS185.104.248.0/24}
			PTR	`ns2.firstbytedns.net`
NS	`ns2.firstbytedns.ru` ⚠️ Not in parent delegation
		A	2a04:5200:ffff::35de^{🇸🇨 FIRSTBYTE-AS2a04:5200:ffff::/48}
			PTR	`ns2.firstbytedns.net`
		A	185.104.248.27^{🇷🇺 FIRSTBYTE-AS185.104.248.0/24}
			PTR	`ns2.firstbytedns.net`
NS	`ns3.firstbytedns.net`
		A	2a04:5200:ffff::115d^{🇸🇨 FIRSTBYTE-AS2a04:5200:ffff::/48}
			PTR	`ns3.firstbytedns.com`
		A	185.180.230.222^{🇷🇺 FIRSTBYTE-AS185.180.230.0/24}
NS	`ns3.firstbytedns.ru` ⚠️ Not in parent delegation
		A	2a04:5200:ffff::115d^{🇸🇨 FIRSTBYTE-AS2a04:5200:ffff::/48}
			PTR	`ns3.firstbytedns.com`
		A	185.180.230.222^{🇷🇺 FIRSTBYTE-AS185.180.230.0/24}
MX	`mail.alter.su`⁽²⁰⁾
		A	185.40.4.152^{🇷🇺 UNSPECIFIED160.0.0.0/3}
			PTR	`free.ds`
SOA	`firstbytedns.net`altersu@ornithosoft.ru 2026-03-17 #0

`su`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.ripn.net` ⭐
	NS	`b.dns.ripn.net`
	NS	`d.dns.ripn.net`
	NS	`e.dns.ripn.net`
	NS	`f.dns.ripn.net`
	SOA	`a.dns.ripn.net`hostmaster@ripn.net serial=650208859

Subdomains

mail.alter.su

Same first word

alter.co.il

alter.ru

alter.global

alter.digital

alter.technology

alter.email

alter.com.br

alter.systems

alter.plus

alter.press

alter.la

alter.com.au

alter.world

alter.com.ua

alter.cat

alter.us

alter.hu

alter.ee

alter.be

alter.es

alter.lviv.ua

alter.gr

alter.media

alter.legal

alter.com

alter.it

alter.international

alter.quebec

alter.gr.jp

alter.tv

alter.audio

alter.za.net

alter.im

alter.blue

alter.net

alter.services

alter.company

alter.org.il

alter.org

alter.ge

alter.ltd

alter.cz

alter.finance

alter.bg

alter.mk

alter.com.pl

alter.codes

alter.org.ua

alter.network

alter.su

alter.biz

alter.asia

alter.si

alter.co.in

alter.com.tr

alter.info

alter.am

alter.pl

alter.hr

alter.mx

alter.srl

alter.one

alter.io

alter.co.jp

alter.pe

alter.kz

alter.nl

alter.health

Similar names

altre.us

later.management

retal.ru

ratel.fr

artel.uz

eltra.ch

artel.dk

alert.gr

alert.net

trela.pl

alert.com.mt

artel.it

letra.hu

eltar.com.pl

tarel.pl

alert.me

arlet.de

tarle.com

telar.com.mx

later.do

ratel.com.br

realt.co.uk

alert.s3.amazonaws.com

eltra.biz

realt.ua

alert.today

eltra.com.br

eltra.de

atler.pl

earlt.com

alert.sa.gov.au

relat.ru

letra.info

letra.pt

taler.no

atrel.com

realt.io

alert.com.tr

larte.ru

teral.de

taler.com

artel.ir

larte.it

later.cool

larte.eu

eltar.ee

artel.sk

alert.al

later.app

alert.group

letra.de

realt.in

realt.cz

later.training

realt.cn

erlat.com

larte.ae

treal.de

alert.center

tlaer.nl

later.university

later.ru

artel.ch

trela.com

lerta.ru

altre.org

treal.ru

larte.pl

later.la

letra.co.uk

eltra.jp

ratel.de

relat.co.jp

later.tv

later.bz

artel.tv

leart.de

ratel.com.pl

artel.no-ip.org

realt.km.ua

realt.com.br

telar.org

later.at

leart.ee

ltrea.com.cn

artel.by

larte.com

DNS History

9 records (9 active, 0 former)

●NSfirstbytedns.net2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●NSns1.firstbytedns.net2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●NSns1.firstbytedns.ru2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●NSns2.firstbytedns.net2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●NSns2.firstbytedns.ru2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●NSns3.firstbytedns.net2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●NSns3.firstbytedns.ru2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●MXmail.alter.su2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

●A185.40.4.1522026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 14:07:28
● 2026-04-24 17:54:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
su	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	10 records
alter.su	ns3.firstbytedns.net, ns2.firstbytedns.net, ns1.firstbytedns.net	-

✅ Authoritative Response

Server:185.104.248.27

NS records: ns3.firstbytedns.net, ns2.firstbytedns.net, ns1.firstbytedns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for alter.su (unsigned zone)

⏱️ Timing

Total: 1581ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.40.4.152`
NS	6	`ns1.firstbytedns.ru, ns3.firstbytedns.net...`
MX	2	`mail.alter.su (pri: 10), mail.alter.su (pri: 20)`
SOA	1	`firstbytedns.net altersu.ornithosoft.ru`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net...)

Analysis

Hierarchy

alter.su is a parent of mail.alter.su.

IP Addresses

alter.su points to a single IP address: 185.40.4.152.

Other host names, for instance mail.alter.su, share IP numbers with alter.su.

Name Servers

alter.su is delegated to seven name servers: firstbytedns.net, ns1.firstbytedns.net, ns2.firstbytedns.net, ns3.firstbytedns.net, ns1.firstbytedns.ru, ns2.firstbytedns.ru and ns3.firstbytedns.ru.

At least part of the name servers for alter.su are shared with other domains, for instance mosoblgid.ru, p2pmachine.com, 73.252.84.in-addr.arpa, sharstar.ru and gen-sys.ru.