`studyguide.ch`

DNSSEC	⚠️ Not signed
A	217.70.184.38^{🇫🇷 GANDI-AS217.70.184.0/24 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net}
		PTR	`webredir.vip.gandi.net`
NS	`ns1.gandi.net` ⭐
		A	2001:4b98:aaaa::2^{🇫🇷 GANDI-LIVEDNS2001:4b98:aaaa::/48 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-1-a.gandi.net`
		A	173.246.100.2^{🇺🇸 GANDI-LIVEDNS173.246.100.0/24 Gandi LiveDNS A}
			PTR	`ns-1-a.gandi.net`
NS	`ns-134-a.gandi.net`
		A	2001:4b98:aaaa::87^{🇫🇷 GANDI-LIVEDNS2001:4b98:aaaa::/48 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-134-a.gandi.net`
		A	173.246.100.135^{🇺🇸 GANDI-LIVEDNS173.246.100.0/24 Gandi LiveDNS A}
			PTR	`ns-134-a.gandi.net`
NS	`ns-165-b.gandi.net`
		A	2001:4b98:aaab::a6^{🇫🇷 GANDI-LIVEDNS2001:4b98:aaab::/48 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net}
			PTR	`ns-165-b.gandi.net`
		A	213.167.230.166^{🇫🇷 GANDI-LIVEDNS213.167.230.0/24 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-165-b.gandi.net`
NS	`ns-20-c.gandi.net`
		A	2604:3400:aaac::15^{🇺🇸 GANDI-LIVEDNS2604:3400:aaac::/48 Gandi US Inc.}
			PTR	`ns-20-c.gandi.net`
		A	217.70.187.21^{🇫🇷 GANDI-LIVEDNS217.70.187.0/24 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-20-c.gandi.net`
MX	`spool.mail.gandi.net` ⭐
		A	2001:4b98:e00::1^{🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net}
			PTR	`spool.mail.gandi.net`
		A	217.70.178.1^{🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net}
			PTR	`spool.mail.gandi.net`
MX	`fb.mail.gandi.net`⁽⁵⁰⁾
		A	2001:4b98:dc4:8::215^{🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net}
			PTR	`spool6.mail.gandi.net`
		A	2001:4b98:dc4:8::216^{🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net}
			PTR	`spool7.mail.gandi.net`
		A	2001:4b98:dc4:8::217^{🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net}
			PTR	`spool8.mail.gandi.net`
		A	217.70.178.215^{🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net}
			PTR	`spool6.mail.gandi.net`
		A	217.70.178.216^{🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net}
			PTR	`spool7.mail.gandi.net`
		A	217.70.178.217^{🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net}
			PTR	`spool8.mail.gandi.net`
TXT	`v=spf1 include:_mailcust.gandi.net ?all`
SOA	`ns1.gandi.net`hostmaster@gandi.net serial=1785974400

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-08-11 #29

Same first word

studyguide.eu

studyguide.com

studyguide.ca

studyguide.co.in

studyguide.org

studyguide.ch

studyguide.at

studyguide.cn

studyguide.co

studyguide.us

studyguide.de

studyguide.gr

studyguide.net

Similar names

guidestudy.us

guidestudy.tv

guidestudy.info

guidestudy.com

DNS History

12 records (7 active, 5 former)

●NSns-134-a.gandi.net2026-02-24 → 2026-08-11 · 3 obs

○ 2020-01-12 06:15:10
● 2026-02-24 07:27:10
● 2026-08-11 13:34:12

●NSns-165-b.gandi.net2026-02-24 → 2026-08-11 · 3 obs

○ 2020-01-12 06:15:10
● 2026-02-24 07:27:10
● 2026-08-11 13:34:12

●NSns-20-c.gandi.net2026-02-24 → 2026-08-11 · 3 obs

○ 2020-01-12 06:15:10
● 2026-02-24 07:27:10
● 2026-08-11 13:34:12

○NSns1.evok.ch2015-07-20 → 2017-03-27 · 4 obs

● 2015-07-20 12:49:02
● 2017-03-27 16:08:18
○ 2020-01-12 06:15:10
○ 2026-08-11 13:34:12

●NSns1.gandi.net2026-02-24 → 2026-08-11 · 3 obs

○ 2020-01-12 06:15:10
● 2026-02-24 07:27:10
● 2026-08-11 13:34:12

○NSns2.evok.ch2015-07-20 → 2017-03-27 · 4 obs

● 2015-07-20 12:49:02
● 2017-03-27 16:08:18
○ 2020-01-12 06:15:10
○ 2026-08-11 13:34:12

○NSns3.evok.ch2015-07-20 → 2017-03-27 · 4 obs

● 2015-07-20 12:49:02
● 2017-03-27 16:08:18
○ 2020-01-12 06:15:10
○ 2026-08-11 13:34:12

○NSns4.evok.ch2015-07-20 → 2017-03-27 · 4 obs

● 2015-07-20 12:49:02
● 2017-03-27 16:08:18
○ 2020-01-12 06:15:10
○ 2026-08-11 13:34:12

●MXfb.mail.gandi.net2026-02-24 → 2026-08-11 · 2 obs

● 2026-02-24 07:27:10
● 2026-08-11 13:34:12

●MXspool.mail.gandi.net2026-02-24 → 2026-08-11 · 2 obs

● 2026-02-24 07:27:10
● 2026-08-11 13:34:12

○A193.33.31.662015-07-20 → 2017-03-27 · 4 obs

● 2015-07-20 12:49:02
● 2017-03-27 16:08:18
○ 2020-01-12 06:15:10
○ 2026-08-11 13:34:12

●A217.70.184.382026-02-24 → 2026-08-11 · 3 obs

○ 2020-01-12 06:15:10
● 2026-02-24 07:27:10
● 2026-08-11 13:34:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	b.nic.ch, e.nic.ch, a.nic.ch, d.nic.ch...	-
studyguide.ch	ns-20-c.gandi.net, ns-134-a.gandi.net, ns-165-b.gandi.net	-

✅ Authoritative Response

Server:217.70.187.21

NS records: ns-20-c.gandi.net, ns-134-a.gandi.net, ns-165-b.gandi.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyguide.ch (unsigned zone)

⏱️ Timing

Total: 783ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.70.184.38`
NS	3	`ns-20-c.gandi.net, ns-134-a.gandi.net...`
MX	2	`fb.mail.gandi.net (pri: 50), spool.mail.gandi.net (pri: 10)`
TXT	1	`v=spf1 include:_mailcust.gandi.net ?all`
SOA	1	`ns1.gandi.net hostmaster.gandi.net`

Analysis

IP Addresses

studyguide.ch resolves to one IP address: 217.70.184.38.

arnabar.com, mrsys.fr, xn--la-brioche-dore-onb.com and two other host names share IP numbers with studyguide.ch.

Name Servers

The authoritative name servers for studyguide.ch are ns-134-a.gandi.net, ns-165-b.gandi.net, ns-20-c.gandi.net and ns1.gandi.net.

The name servers of studyguide.ch overlap at least partially with those of other domains — among them tecnifibre.us, sprint-telecom.fr, majeli-avocat.com and two more.

The name servers ns-47-c.gandi.net, ns-210-c.gandi.net and ns-125-c.gandi.net are commonly seen alongside these name servers.

Each of the four hosts ns-134-a.gandi.net, ns-165-b.gandi.net, ns-20-c.gandi.net and ns1.gandi.net has two IP addresses. ns-134-a.gandi.net points to 173.246.100.135 and 2001:4b98:aaaa::87. ns-165-b.gandi.net points to 213.167.230.166 and 2001:4b98:aaab::a6. ns-20-c.gandi.net points to 217.70.187.21 and 2604:3400:aaac::15. ns1.gandi.net points to 173.246.100.2 and 2001:4b98:aaaa::2.

Mail Servers

Mail for studyguide.ch is handled by two mail servers — fb.mail.gandi.net and spool.mail.gandi.net.

studyguide.ch uses an identical mail server configuration to several other domains — among them cryptken.com, squale.net, tarifold.de and two more.

studyguide.ch partially shares its mail servers with other domains — including rocpartner.net, compactor.fr, ctago.fr and mi-chuan.com.

Hostnames that resolve to 6 IP addresses:

fb.mail.gandi.net has IP addresses 217.70.178.215, 217.70.178.216 and 217.70.178.217, plus 3 other.

Hostnames that resolve to two IP addresses:

spool.mail.gandi.net has two IP addresses: 217.70.178.1 and 2001:4b98:e00::1.

studyguide.ch - robtex.com

studyguide.ch

ch

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`studyguide.ch`

`ch`