mail.plfn.org - robtex.com

mail.plfn.org

DNSSEC⚠️ Not signed
A81.23.102.26🇷🇺 SEVEREN-TELECOM81.23.96.0/19 SEVEREN
PTRmail.plfn.org
NSns2.masterhost.ru ⭐ ⚠️ Not in parent delegation
A2a00:15f8:a000:12:1:1:2:53🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48
PTRns2.masterhost.ru
A90.156.133.161🇷🇺 MASTERHOST-AS90.156.128.0/20
PTRns2.masterhost.ru
NSns.masterhost.ru ⚠️ Not in parent delegation
A2a00:15f8:a000:10:1:1:0:53🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48
PTRns.masterhost.ru
A90.156.136.116🇷🇺 MASTERHOST-AS90.156.128.0/20
PTRns.masterhost.ru
NSns1.masterhost.ru ⚠️ Not in parent delegation
A2a00:15f8:a000:11:1:1:1:53🇷🇺 MASTERHOST-AS2a00:15f8:a000::/48
PTRns1.masterhost.ru
A90.156.137.50🇷🇺 MASTERHOST-AS90.156.128.0/20
PTRns1.masterhost.ru
SOAns1.masterhost.ruhostmaster@masterhost.ru serial=1774863629

plfn.org

DNSSEC⚠️ Not signed
A81.23.102.26🇷🇺 SEVEREN-TELECOM81.23.96.0/19 SEVEREN
NSns2.masterhost.ru ⭐
NSns.masterhost.ru
NSns1.masterhost.ru
MXmail.plfn.org ⭐
TXTv=spf1 +mx -all
SOAns1.masterhost.ruhostmaster@masterhost.ru serial=1776410641

PTR for

26.102.23.81.in-addr.arpa

MX for

plfn.org

Same first word

mail.camp
mail.nic.za
mail.pink
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mail.guide
mail.chips.jp
mail.info
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mail.charity
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mail.space
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mail.ilovecollege.info
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mail.co.uk
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mail.rj.gov.br
mail.freedesktop.org
mail.direct
mail.yandex
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mail.vacations
mail.my

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amil.io
mail.gov.nr
mila.it
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mila.email
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lami.ai
amli.be
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amli.se

DNS History

4 records (4 active, 0 former)

NSns.masterhost.runs1.masterhost.runs2.masterhost.ruA81.23.102.26
●NSns.masterhost.ru2026-02-28 → 2026-05-12 · 2 obs
● 2026-02-28 03:57:16
● 2026-05-12 09:45:44
●NSns1.masterhost.ru2026-02-28 → 2026-05-12 · 2 obs
● 2026-02-28 03:57:16
● 2026-05-12 09:45:44
●NSns2.masterhost.ru2026-02-28 → 2026-05-12 · 2 obs
● 2026-02-28 03:57:16
● 2026-05-12 09:45:44
●A81.23.102.262026-02-28 → 2026-05-12 · 2 obs
● 2026-02-28 03:57:16
● 2026-05-12 09:45:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-
plfn.orgns2.masterhost.ru, ns.masterhost.ru, ns1.masterhost.ru-

✅ Authoritative Response

Server:90.156.133.161

NS records: ns2.masterhost.ru, ns.masterhost.ru, ns1.masterhost.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for plfn.org (unsigned zone)

⏱️ Timing

Total: 1520ms | Queries: -

📄 Records

TypeCountSample Data
A181.23.102.26
NS3ns1.masterhost.ru, ns2.masterhost.ru...
SOA1ns1.masterhost.ru hostmaster.masterhost.

Analysis

Mail Server Role

mail.plfn.org serves as the mail server for plfn.org.

IP Addresses

mail.plfn.org resolves to a single IP: 81.23.102.26.

Other host names share IP numbers with mail.plfn.org; for instance plfn.org.

Name Servers

mail.plfn.org delegates to three name servers: ns1.masterhost.ru, ns2.masterhost.ru and ns.masterhost.ru.

mail.plfn.org shares some name servers with other domains, for example renergo.ru, bolshunoff.ru, dveri-4post.ru, mutual.su and 4komnati.ru.

Host names with two IP numbers:

ns1.masterhost.ru: 2a00:15f8:a000:11:1:1:1:53 and 90.156.137.50

ns2.masterhost.ru: 2a00:15f8:a000:12:1:1:2:53 and 90.156.133.161

ns.masterhost.ru: 2a00:15f8:a000:10:1:1:0:53 and 90.156.136.116