`mail.coursefolder.net`

CNAME	`coursefolder.net`
DNSSEC	⚠️ Not signed
A	162.55.238.172^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
		PTR	`pole.hostitbro.com`
NS	`dns21.hostitbro.com` ⭐
		A	162.55.238.172^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
			PTR	`pole.hostitbro.com`
NS	`dns22.hostitbro.com`
		A	162.55.238.172^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
			PTR	`pole.hostitbro.com`
MX	`coursefolder.net` ⭐
		A	162.55.238.172^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
			PTR	`pole.hostitbro.com`
TXT	`v=spf1 +a +mx +ip4:162.55.238.172 ~all`
SOA	`dns21.hostitbro.com`root@pole.hostitbro.com 2026-06-13 #14

`coursefolder.net`

	DNSSEC	⚠️ Not signed
	A	162.55.238.172^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
	NS	`dns21.hostitbro.com` ⭐
	NS	`dns22.hostitbro.com`
	MX	`coursefolder.net` ⭐
	TXT	`v=spf1 +a +mx +ip4:162.55.238.172 ~all`
	SOA	`dns21.hostitbro.com`root@pole.hostitbro.com 2026-06-13 #14

Previously MX for

coursefolder.net

Same first word

mail.tj

mail.repair

mail.mydissent.net

mail.spdns.org

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mail.fish

mail.pp.ua

mail.no-ip.net

mail.mn

mail.mydns.bz

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mail.gov.ye

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mail.kz

mail.im

mail.kaas.gg

mail.it.com

mail.gov.mg

mail.ss

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mail.tc

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mail.world

mail.pe

mail.sunnyday.jp

mail.group

mail.gov

mail.org.za

mail.mx

mail.cy

mail.supply

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.associates

mail.al

mail.myfast.space

mail.vip

mail.red

mail.co.il

mail.pf

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mail.uy

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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.hk.com

mail.mh

mail.gov.mw

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mail.mmafan.biz

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mail.synology-diskstation.de

mail.schoolbus.jp

mail.cn.ua

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.gov.ru

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DNS History

2 records (1 active, 1 former)

○A208.91.199.1082026-02-21 → 2026-04-18 · 7 obs

● 2026-02-21 02:04:22
○ 2026-02-25 16:44:04
○ 2026-02-26 02:54:52
● 2026-03-11 03:39:14
● 2026-04-18 12:06:42
○ 2026-04-18 13:04:06
○ 2026-07-26 10:32:14

●CNAMEcoursefolder.net2026-07-26 → 2026-07-26 · 1 obs

● 2026-07-26 10:32:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
coursefolder.net	dns21.hostitbro.com, dns22.hostitbro.com	-

✅ Authoritative Response

Server:162.55.238.172

NS records: dns21.hostitbro.com, dns22.hostitbro.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursefolder.net (unsigned zone)

⏱️ Timing

Total: 412ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`coursefolder.net`

Analysis

IP Addresses

mail.coursefolder.net resolves to one IP address: 162.55.238.172.

thekeralamedia.in, way2music.com, grkinfotech.com and two other host names share IP numbers with mail.coursefolder.net.

Name Servers

The NS records for mail.coursefolder.net delegate to dns21.hostitbro.com and dns22.hostitbro.com.

mail.coursefolder.net uses the same name servers as several other domains — among them mythtools.com, cchheathcare.com, nsgtrade.com and two more.

mail.coursefolder.net has overlapping name servers with several other domains — among them bivetyhc.com, hveer.com, gmind.in and sbpsmtrust.com.

These name servers commonly appear alongside the name servers ns1.cprapid.com and ns2.cprapid.com.

Each of dns21.hostitbro.com and dns22.hostitbro.com points to exactly one IP address: 162.55.238.172.

dns21.hostitbro.com and dns22.hostitbro.com each have 162.55.238.172 IP addresses.

Mail Servers

Mail for mail.coursefolder.net is handled by a single mail server, coursefolder.net.

The mail server configuration of mail.coursefolder.net is identical to that of other domains — coursefolder.net being one example.

coursefolder.net resolves to 162.55.238.172 and no other IP number.

mail.coursefolder.net - robtex.com