studentselfcheck.com - dns.ninja

`studentselfcheck.com`

DNSSEC	🔒 Signed (DS record present)
A	2a05:1500:600:7:1c00:91ff:fe00:f31^{🇳🇱 CLDIN-NL2a05:1500:600::/40 PCextreme B.V. - Amsterdam (ams02)}
		PTR	`web-1095.yourhosting.nl`
A	92.63.168.160^{🇳🇱 CLDIN-NL92.63.168.0/21 PCextreme IPv4 Route}
NS	`ns-s.dns.yourhosting.nl` ⭐
NS	`ns-b.dns.yourhosting.eu`
NS	`ns-x.dns.yourhosting.nu`
		A	2a05:1500:fe00::c3ff:fe08:d00c^{🇳🇱 NL-BIT2a05:1500:fe00::/40}
			PTR	`dns-yh-12.dns.cldin.net`
		A	195.8.208.12^{🇳🇱 NL-BIT195.8.208.0/23}
			PTR	`dns-yh-12.dns.cldin.net`
MX	`primary.yourfilter.nl` ⭐
		A	2a01:b941:2::23^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se23-yh.route25.eu`
		A	2a01:b941:2::24^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se22-yh.route25.eu`
		A	2a01:b941:2::25^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se21-yh.route25.eu`
		A	2a01:b941:2::26^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se20-yh.route25.eu`
		A	2a01:b941:2::27^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se19-yh.route25.eu`
		A	2a01:b941:2::28^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se18-yh.route25.eu`
		A	2a01:b941:2::29^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se17-yh.route25.eu`
		A	2a01:b941:2::30^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se16-yh.route25.eu`
		A	2a05:1500:702:9:1c00:2aff:fe00:5554^{🇳🇱 CLDIN-NL2a05:1500::/29}
			PTR	`se28-yh.route25.eu`
		A	2a05:1500:702:9:1c00:7fff:fe00:5556^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	2a05:1500:702:9:1c00:a3ff:fe00:5558^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	2a05:1500:702:9:1c00:a5ff:fe00:5553^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	2a05:1500:702:9:1c00:f0ff:fe00:5555^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	185.103.241.20^{🇳🇱 CLDIN-NL185.103.240.0/22}
		A	185.103.241.21^{🇳🇱 CLDIN-NL185.103.240.0/22}
		A	185.103.241.22^{🇳🇱 CLDIN-NL185.103.240.0/22}
		A	185.103.241.23^{🇳🇱 CLDIN-NL185.103.240.0/22}
		A	185.103.241.25^{🇳🇱 CLDIN-NL185.103.240.0/22}
		A	185.223.33.23^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se23-yh.route25.eu`
		A	185.223.33.24^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se22-yh.route25.eu`
		A	185.223.33.27^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se19-yh.route25.eu`
		A	185.223.33.28^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se18-yh.route25.eu`
		A	185.223.33.29^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se17-yh.route25.eu`
		A	185.223.33.30^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se16-yh.route25.eu`
MX	`fallback.yourfilter.nl`⁽²⁰⁾
		A	2a01:b941:2::23^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se23-yh.route25.eu`
		A	2a01:b941:2::24^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se22-yh.route25.eu`
		A	2a01:b941:2::28^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se18-yh.route25.eu`
		A	2a01:b941:2::29^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se17-yh.route25.eu`
		A	2a01:b941:2::30^{🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING}
			PTR	`se16-yh.route25.eu`
		A	2a05:1500:702:9:1c00:7fff:fe00:5556^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	2a05:1500:702:9:1c00:f0ff:fe00:5555^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	185.103.241.22^{🇳🇱 CLDIN-NL185.103.240.0/22}
		A	185.103.241.23^{🇳🇱 CLDIN-NL185.103.240.0/22}
		A	185.223.33.23^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se23-yh.route25.eu`
		A	185.223.33.25^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se21-yh.route25.eu`
		A	185.223.33.26^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se20-yh.route25.eu`
		A	185.223.33.27^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se19-yh.route25.eu`
		A	185.223.33.30^{🇳🇱 CLDIN-NL185.223.32.0/22}
			PTR	`se16-yh.route25.eu`
TXT	`v=spf1 include:_spf.yourfilter.nl mx a ~all`
SOA	`ns-s.dns.yourhosting.nl`hostmaster@dns.yourhosting.nl 2026-06-08 #2

`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=1786470874

Same first word

studentselfcheck.nl

studentselfcheck.com

DNS History

14 records (7 active, 7 former)

●NSns-b.dns.yourhosting.eu2026-02-16 → 2026-08-11 · 3 obs

○ 2019-02-18 17:18:02
● 2026-02-16 08:25:06
● 2026-08-11 18:06:46

●NSns-s.dns.yourhosting.nl2026-02-16 → 2026-08-11 · 3 obs

○ 2019-02-18 17:18:02
● 2026-02-16 08:25:06
● 2026-08-11 18:06:46

●NSns-x.dns.yourhosting.nu2026-02-16 → 2026-08-11 · 3 obs

○ 2019-02-18 17:18:02
● 2026-02-16 08:25:06
● 2026-08-11 18:06:46

○NSns3.firstfind.nl2019-02-18 → 2019-02-18 · 3 obs

● 2019-02-18 17:18:02
○ 2026-02-16 08:25:06
○ 2026-08-11 18:06:46

○NSns4.firstfind.nl2019-02-18 → 2019-02-18 · 3 obs

● 2019-02-18 17:18:02
○ 2026-02-16 08:25:06
○ 2026-08-11 18:06:46

○NSns5.firstfind.net2019-02-18 → 2019-02-18 · 3 obs

● 2019-02-18 17:18:02
○ 2026-02-16 08:25:06
○ 2026-08-11 18:06:46

●MXfallback.yourfilter.nl2026-02-16 → 2026-08-11 · 3 obs

○ 2019-02-18 17:18:02
● 2026-02-16 08:25:06
● 2026-08-11 18:06:46

○MXmx1.firstfind.nl2019-02-18 → 2019-02-18 · 3 obs

● 2019-02-18 17:18:02
○ 2026-02-16 08:25:06
○ 2026-08-11 18:06:46

○MXmx2.firstfind.nl2019-02-18 → 2019-02-18 · 3 obs

● 2019-02-18 17:18:02
○ 2026-02-16 08:25:06
○ 2026-08-11 18:06:46

●MXprimary.yourfilter.nl2026-02-16 → 2026-08-11 · 3 obs

○ 2019-02-18 17:18:02
● 2026-02-16 08:25:06
● 2026-08-11 18:06:46

○MXserver40.firstfind.nl2019-02-18 → 2019-02-18 · 3 obs

● 2019-02-18 17:18:02
○ 2026-02-16 08:25:06
○ 2026-08-11 18:06:46

●A2a05:1500:600:7:1c00:91ff:fe00:f312026-02-16 → 2026-08-11 · 3 obs

○ 2019-02-18 17:18:02
● 2026-02-16 08:25:06
● 2026-08-11 18:06:46

○A5.157.87.2042019-02-18 → 2019-02-18 · 3 obs

● 2019-02-18 17:18:02
○ 2026-02-16 08:25:06
○ 2026-08-11 18:06:46

●A92.63.168.1602026-02-16 → 2026-08-11 · 3 obs

○ 2019-02-18 17:18:02
● 2026-02-16 08:25:06
● 2026-08-11 18:06:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
studentselfcheck.com	ns-b.dns.yourhosting.eu, ns-x.dns.yourhosting.nu, ns-s.dns.yourhosting.nl	-

✅ Authoritative Response

Server:31.25.98.12

NS records: ns-b.dns.yourhosting.eu, ns-x.dns.yourhosting.nu, ns-s.dns.yourhosting.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 4794ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`92.63.168.160`
AAAA	1	`2a05:1500:600:7:1c00:91ff:fe00:f31`
NS	3	`ns-b.dns.yourhosting.eu, ns-s.dns.yourhosting.nl...`
MX	2	`fallback.yourfilter.nl (pri: 20), primary.yourfilter.nl (pri: 10)`
TXT	1	`v=spf1 include:_spf.yourfilter.nl mx a ~`
SOA	1	`ns-s.dns.yourhosting.nl hostmaster.dns.y`

Analysis

IP Addresses

studentselfcheck.com has two IP addresses: 92.63.168.160 and 2a05:1500:600:7:1c00:91ff:fe00:f31

erzijn.nl, dezoes.nl, nlsteel.com and two other host names share IP numbers with studentselfcheck.com.

Name Servers

The authoritative name servers for studentselfcheck.com are ns-b.dns.yourhosting.eu, ns-s.dns.yourhosting.nl and ns-x.dns.yourhosting.nu — three in total.

The name servers of studentselfcheck.com overlap at least partially with those of other domains — among them vienails.com, fitspot.nl, lutsen.nl and two more.

These name servers commonly appear in delegations together with ns-q.dns.yourhosting.eu, ns-a.dns.yourhosting.nl, ns-t.dns.yourhosting.eu and 7 other.

Hostnames that resolve to two IP addresses:

ns-x.dns.yourhosting.nu directs traffic to 195.8.208.12 and 2a05:1500:fe00::c3ff:fe08:d00c.

Mail Servers

Mail for studentselfcheck.com is handled by two mail servers — fallback.yourfilter.nl and primary.yourfilter.nl.

studentselfcheck.com uses an identical mail server configuration to several other domains — among them spomar.nl, seniam.org, favm.nl and two more.

Hostnames that resolve to 24 IP addresses:

Hostname primary.yourfilter.nl directs to 185.103.241.20, 185.103.241.21 and 185.103.241.22 along with 21 other IP addresses.

Hostnames that resolve to 14 IP addresses:

Hostname fallback.yourfilter.nl directs to 185.103.241.22, 185.103.241.23 and 185.223.33.23 along with 11 other IP addresses.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 2a01:b941:2::23 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 2a01:b941:2::24 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 2a01:b941:2::28 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 2a01:b941:2::29 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 2a01:b941:2::30 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 2a05:1500:702:9:1c00:7fff:fe00:5556 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 2a05:1500:702:9:1c00:f0ff:fe00:5555 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 185.103.241.22 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 185.103.241.23 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 185.223.33.23 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 185.223.33.27 IP addresses each.

Both primary.yourfilter.nl and fallback.yourfilter.nl resolve to 185.223.33.30 IP addresses each.