`student-tools.com`

DNSSEC	⚠️ Not signed
A	82.98.175.102^{🇪🇸 DINAHOSTING-AS82.98.128.0/18 First Dinahosting S.L. prefix}
		PTR	`vl26478.dinaserver.com`
NS	`ns2.dinahosting.com` ⭐
		A	185.192.221.10^{🇪🇸 DINAHOSTING-AS185.192.221.0/24}
			PTR	`ns2.dinahosting.com`
NS	`ns.dinahosting.com`
		A	185.192.220.10^{🇪🇸 DINAHOSTING-AS185.192.220.0/24}
			PTR	`ns.dinahosting.com`
NS	`ns3.dinahosting.com`
		A	185.192.222.10^{🇪🇸 DINAHOSTING-AS185.192.222.0/24}
			PTR	`ns3.dinahosting.com`
NS	`ns4.dinahosting.com`
		A	185.192.223.10^{🇪🇸 DINAHOSTING-AS185.192.223.0/24}
			PTR	`ns4.dinahosting.com`
MX	`mail.student-tools.com` ⭐
		A	82.98.175.102^{🇪🇸 DINAHOSTING-AS82.98.128.0/18 First Dinahosting S.L. prefix}
			PTR	`vl26478.dinaserver.com`
TXT	`v=spf1 a mx ~all`
SOA	`ns.dinahosting.com`hostmaster@student-tools.com 2018-08-30 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778684806

Subdomains

mail.student-tools.com

Same first word

student-tools.com

DNS History

11 records (6 active, 5 former)

●NSns.dinahosting.com2017-05-28 → 2026-05-13 · 2 obs

● 2017-05-28 04:21:52
● 2026-05-13 15:21:00

○NSns.gestiondecuenta.com2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 04:21:52
○ 2026-04-11 23:56:14
○ 2026-05-13 15:21:00

●NSns2.dinahosting.com2026-04-11 → 2026-05-13 · 3 obs

○ 2017-05-28 04:21:52
● 2026-04-11 23:56:14
● 2026-05-13 15:21:00

○NSns2.gestiondecuenta.com2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 04:21:52
○ 2026-04-11 23:56:14
○ 2026-05-13 15:21:00

●NSns3.dinahosting.com2026-04-11 → 2026-05-13 · 3 obs

○ 2017-05-28 04:21:52
● 2026-04-11 23:56:14
● 2026-05-13 15:21:00

○NSns3.gestiondecuenta.com2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 04:21:52
○ 2026-04-11 23:56:14
○ 2026-05-13 15:21:00

●NSns4.dinahosting.com2026-04-11 → 2026-05-13 · 3 obs

○ 2017-05-28 04:21:52
● 2026-04-11 23:56:14
● 2026-05-13 15:21:00

○NSns4.gestiondecuenta.com2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 04:21:52
○ 2026-04-11 23:56:14
○ 2026-05-13 15:21:00

●MXmail.student-tools.com2017-05-28 → 2026-05-13 · 2 obs

● 2017-05-28 04:21:52
● 2026-05-13 15:21:00

●A82.98.175.1022026-04-11 → 2026-05-13 · 3 obs

○ 2017-05-28 04:21:52
● 2026-04-11 23:56:14
● 2026-05-13 15:21:00

○A82.98.177.102017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 04:21:52
○ 2026-04-11 23:56:14
○ 2026-05-13 15:21:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...	-
student-tools.com	ns.dinahosting.com, ns2.dinahosting.com, ns3.dinahosting.com, ns4.dinahosting.com	4 records

✅ Authoritative Response

Server:185.192.220.10

NS records: ns.dinahosting.com, ns2.dinahosting.com, ns3.dinahosting.com, ns4.dinahosting.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for student-tools.com (unsigned zone)

⏱️ Timing

Total: 945ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`82.98.175.102`
NS	4	`ns2.dinahosting.com, ns4.dinahosting.com...`
MX	1	`mail.student-tools.com (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`ns.dinahosting.com hostmaster.student-to`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.dinahosting.com, ns2.dinahosting.com, ns3.dinahosting.com...)

Analysis

Hierarchy

The parent of mail.student-tools.com is student-tools.com.

IP Addresses

student-tools.com points to an IP address: 82.98.175.102.

other host names include mail.interdisc.org, mail.student-tools.com, hb-d.com, interdisc.org and vl26478.dinaserver.com; they share IP numbers with student-tools.com.

Name Servers

student-tools.com delegates to four name servers: ns2.dinahosting.com, ns3.dinahosting.com, ns4.dinahosting.com and ns.dinahosting.com.

student-tools.com at least partially shares name servers with other domains, for instance coiial.net, artesaniadeafrica.com, traumatologiainfantil.com, franquiciator.es and kh7.es.

These name servers are commonly used with the following: ns.gestiondecuenta.com, ns2.gestiondecuenta.com, ns3.gestiondecuenta.com and ns4.gestiondecuenta.com.

Host names with one IP number: ns2.dinahosting.com points to: 185.192.221.10; ns3.dinahosting.com points to: 185.192.222.10; ns4.dinahosting.com points to: 185.192.223.10; ns.dinahosting.com points to: 185.192.220.10.

Mail Servers

student-tools.com is handled by a single mail server, mail.student-tools.com.

The host name mail.student-tools.com points to IP 82.98.175.102.

student-tools.com - robtex.com