sefr.eu - robtex.com

sefr.eu

DNSSEC🔒 Signed (DS record present)
A217.31.49.238🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
NSns1.ignum.com ⭐
A2a00:1e40:a:53::5🇸🇰 IGNUM-AS2a00:1e40:a::/48
PTRns1-bra.core.webglobe.com
A185.65.223.35🇸🇰 IGNUM-AS185.65.223.0/24
PTRns1-bra.core.webglobe.com
NSns2.ignum.cz
A2001:1ab0:7e1e:2::5🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
A217.31.48.201🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
MXsefr-eu.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::1🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00401.inbound.protection.outlook.com
A2a01:111:f403:ca04::4🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00204.inbound.protection.outlook.com
A2a01:111:f403:ca04::5🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db3pr0202cu00205.inbound.protection.outlook.com
A2a01:111:f403:ca04::f🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00507.inbound.protection.outlook.com
A52.101.68.3🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00403.inbound.protection.outlook.com
A52.101.68.29🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-dbapr03cu00105.inbound.protection.outlook.com
A52.101.73.24🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr05cu00300.inbound.protection.outlook.com
A52.101.73.30🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00306.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com -all
SOAns1.ignum.comhostmaster@ignum.cz 2026-06-10 #1

eu

DNSSEC🔒 Signed (DS record present)
NSsi.dns.eu ⭐
NSbe.dns.eu
NSw.dns.eu
NSx.dns.eu
NSy.dns.eu
SOAsi.dns.eutech@eurid.eu serial=1125525560

Same first word

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sefr.net
sefr.org
sefr.nl
sefr.ir
sefr.com
sefr.fr
sefr.in

Similar names

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rsef.org
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fres.jp
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erfs.net
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refs.net.au
sref.ir

DNS History

4 records (4 active, 0 former)

20162017201820192020202120222023202420252026NSns1.ignum.comns2.ignum.czMXsefr-eu.mail.protection.outlook.comA217.31.49.238
●NSns1.ignum.com2015-08-30 → 2026-06-25 · 2 obs
● 2015-08-30 07:41:54
● 2026-06-25 10:16:18
●NSns2.ignum.cz2015-08-30 → 2026-06-25 · 2 obs
● 2015-08-30 07:41:54
● 2026-06-25 10:16:18
●MXsefr-eu.mail.protection.outlook.com2015-08-30 → 2026-06-25 · 2 obs
● 2015-08-30 07:41:54
● 2026-06-25 10:16:18
●A217.31.49.2382015-08-30 → 2026-06-25 · 2 obs
● 2015-08-30 07:41:54
● 2026-06-25 10:16:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
euw.dns.eu, x.dns.eu, y.dns.eu, be.dns.eu...-
sefr.euns1.ignum.com, ns2.ignum.cz-

✅ Authoritative Response

Server:217.31.48.201

NS records: ns1.ignum.com, ns2.ignum.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 900ms | Queries: -

📄 Records

TypeCountSample Data
A1217.31.49.238
NS2ns1.ignum.com, ns2.ignum.cz
MX1sefr-eu.mail.protection.outlook.com (pri
TXT1v=spf1 include:spf.protection.outlook.co
SOA1ns1.ignum.com hostmaster.ignum.cz

Analysis

IP Addresses

sefr.eu directs to one IP number, which is 217.31.49.238.

Among the host names that share IP numbers with sefr.eu are alsenta.biz, holidaycheque.cz, rss.tenda.hu and two others.

Name Servers

sefr.eu is served by two delegated name servers, ns1.ignum.com and ns2.ignum.cz.

sefr.eu has the same name server delegation as a number of other domains, such as tenaxion.com, arnis.biz, goldgroup.cz and two more.

sefr.eu shares at least some of its name servers with other domains, including spsjc.cz, tomihk.cz, zetservis.info and two others.

These name servers are frequently seen alongside the name servers ns1.ignum.eu, ns2.ignum.eu, ns3.ignum.eu and ns1.webcloud.cz.

Each of the two host names carries two IP addresses: ns1.ignum.com points to 185.65.223.35 and 2a00:1e40:a:53::5, and ns2.ignum.cz points to 217.31.48.201 and 2001:1ab0:7e1e:2::5.

Mail Servers

sefr.eu routes its mail through a single mail server, sefr-eu.mail.protection.outlook.com.

sefr-eu.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.68.3, 52.101.68.29 and 52.101.73.24, along with 5 other.