`mail.head-first.de`

DNSSEC	⚠️ Not signed
A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl1.sedo.com` ⭐ ⚠️ Not in parent delegation
		A	91.195.240.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl2.sedo.com` ⚠️ Not in parent delegation
		A	91.195.241.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
MX	`localhost` ⭐
TXT	`v=spf1 -all`
SOA	`sl1.sedo.com`hostmaster@sedo.de 2018-05-16 #1

`head-first.de`

	DNSSEC	⚠️ Not signed
	A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
	NS	`sl1.sedo.com` ⭐
	NS	`sl2.sedo.com`
	MX	`localhost` ⭐
	TXT	`v=spf1 -all`
	SOA	`sl1.sedo.com`hostmaster@sedo.de 2018-05-16 #1

Same first word

mail.gov.ye

mail.com.kg

mail.nra

mail.couchpotatofries.org

mail.radio.fm

mail.od.ua

mail.ms

mail.boleslawiec.pl

mail.mydns.vc

mail.lutsk.ua

mail.kz

mail.im

mail.kaas.gg

mail.it.com

mail.gov.mg

mail.ss

mail.co

mail.tc

mail.gda.pl

mail.world

mail.pe

mail.sunnyday.jp

mail.group

mail.gov

mail.org.za

mail.mx

mail.cy

mail.gov.ae

mail.com.ba

mail.co.zw

mail.org

mail.pixolino.com

mail.ug

mail.ly

mail.gs

mail.bg

mail.wtf

mail.webhop.me

mail.al

mail.myfast.space

mail.vip

mail.red

mail.co.il

mail.pf

mail.com.mx

mail.uy

mail.gt

mail.training

mail.cd

mail.in.ua

mail.cx

mail.gm

mail.su

mail.toshiba

mail.hosting

mail.net.tr

mail.fm

mail.mil

mail.f5.si

mail.party

mail.tax

mail.coop

mail.directory

mail.freemyip.com

mail.com.tw

mail.hk.com

mail.mh

mail.gov.mw

mail.gov.bn

mail.mmafan.biz

mail.ky

mail.synology-diskstation.de

mail.schoolbus.jp

mail.uz.ua

mail.cool

mail.uk

mail.ru.com

mail.littlestar.jp

mail.com.se

mail.gov.ao

mail.me

mail.ac.gov.br

mail.edu.me

mail.pr

mail.mlbfan.org

mail.ph

mail.nhlfan.net

mail.gru.br

mail.gl

mail.link

mail.no

mail.net.vn

mail.lib.wy.us

mail.pictures

mail.gov.kg

mail.ag

mail.hk

mail.win

mail.net

mail.ne.kr

Similar names

mila.cn

iaml.com

liam.dk

mail.nis.za

mila.cleaning

mlai.ru

lima.com.co

mila.at

mail.gov.ua

lima.lt

laim.pro

lima.church

ilma.biz

mail.net.ua

lami.ch

laim.tv

mail.com.au

mial.nl

amli.net

lami.ai

mail.cat

mail.vin

amli.be

mail.stripper.jp

ailm.org

amli.se

alim.de

laim.lv

imla.farm

mail.ciao.jp

lami.eu

mail.gov.vc

mail.realm.cz

imla.ru

mial.de

mail.vu

lima.my

mail.trading

ilam.de

mail.center

mali.eu

mail.fi

ilma.fi

mila.im

mail.kg

alim.ws

mila.boutique

mail.mayfirst.org

mail.systems

liam.com

mail.itigo.jp

iaml.ch

mail.cl

mila.nyc

mail.vc

mail.babymilk.jp

mail.gov.by

alim.us

almi.co.at

mail.chat

mail.fastvps.host

mail.style

amil.pl

alim.kr

mail.altervista.org

lima.cl

mail.ngo.za

mali.co.uk

mail.awsapps.com

mail.biz

mail.gov.lv

aiml.foundation

mail.jetzt

imla.or.id

mail.kh.ua

mail.ru

mail.myeffect.net

lmia.lt

mail.myshopify.com

mail.123hjemmeside.dk

liam.at

mail.gov.ps

mail.ml

mail.fo

mali.it

mail.expert

liam.wtf

mail.mil.tm

mail.team

amli.com

lima.la

mail.com.ru

mail.tn

imal.info

mail.serveftp.com

mail.by

mail.peewee.jp

mial.eu

lima.cc

mail.virtualuser.de

mail.charity

lima.uk.com

mail.exchange

aiml.online

almi.design

mail.live

imal.co.uk

lima.ir

lima.nl

mlia.net

mail.lk3.ru

amil.sucks

mila.pro

mail.com.mk

mail.ap.gov.br

iaml.at

alim.fr

mila.edu.my

mail.dp.ua

mail.myjino.ru

mlai.in

lima.cloud

iaml.ru

mail.space

mail.net.ph

mail.rr.gov.br

almi.or.id

mial.it

mail.read-books.org

lima.com.my

liam.ru

amil.business

mail.ilovecollege.info

lima.vn

mila.ie

mail.gmx

mail.info.pl

amli.cn

mail.community

mail.cleaning

liam.cn

alim.cl

mail.bh

lami.es

amil.no

mail.site

mail.select

mail.email

DNS History

5 records (4 active, 1 former)

●NSsl1.sedo.com2026-04-02 → 2026-04-02 · 1 obs

● 2026-04-02 12:17:10

●NSsl2.sedo.com2026-04-02 → 2026-04-02 · 1 obs

● 2026-04-02 12:17:10

●MXlocalhost2026-04-02 → 2026-04-02 · 1 obs

● 2026-04-02 12:17:10

●A91.195.241.2322026-04-02 → 2026-04-02 · 2 obs

○ 2016-04-21 16:49:52
● 2026-04-02 12:17:10

○A91.250.116.1872015-07-03 → 2016-04-21 · 3 obs

● 2015-07-03 03:29:46
● 2016-04-21 16:49:52
○ 2026-04-02 12:17:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, z.nic.de, a.nic.de	-
head-first.de	sl1.sedo.com, sl2.sedo.com	-

✅ Authoritative Response

Server:91.195.240.173

NS records: sl1.sedo.com, sl2.sedo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for head-first.de (unsigned zone)

⏱️ Timing

Total: 686ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.195.241.232`
NS	2	`sl1.sedo.com, sl2.sedo.com`
MX	1	`localhost (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`sl1.sedo.com hostmaster.sedo.de`

Analysis

IP Addresses

mail.head-first.de points to a single IP: 91.195.241.232.

Other host names, for instance 38.33.france1.servy.de, oneiroi.eu, unii.eu, smartdns.eu and mail.undersky.de share IP numbers with mail.head-first.de.

Name Servers

Two name servers sl1.sedo.com and sl2.sedo.com handle delegation for mail.head-first.de.

mail.head-first.de uses the same name server setup as other domains, for example elka.in, zima.in, acs.twixzo.de, 774.eu and wwij.com.

Host names with one IP number: The host name sl1.sedo.com points to 91.195.240.173 and the host name sl2.sedo.com points to 91.195.241.173.

Mail Servers

mail.head-first.de is handled by a single mail server, localhost.

mail.head-first.de has the same mail server setup as other domains, including retirement.holiday, intelligentcriptocurrency.com, ycup.com, y-ts.com and ancybuilders.com.

mail.head-first.de - robtex.com