studyblue.nl - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`studyblue.nl`

DNSSEC	⚠️ Not signed
NS	`ns1.markmonitor.com` ⭐
		A	2620:10a:80a8::1^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.1^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns2.markmonitor.com`
		A	2001:67c:10b8::1^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.markmonitor.com`
		A	176.97.158.1^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.markmonitor.com`
NS	`ns3.markmonitor.com`
		A	2620:10a:80a9::1^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.1^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns4.markmonitor.com`
		A	2001:67c:1bc::1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.markmonitor.com`
		A	192.174.68.1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.markmonitor.com`
NS	`ns5.markmonitor.com`
		A	2620:10a:80a8::2^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.2^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns6.markmonitor.com`
		A	2001:67c:10b8::3^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns6.markmonitor.com`
		A	176.97.158.3^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns6.markmonitor.com`
NS	`ns7.markmonitor.com`
		A	2620:10a:80a9::2^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.2^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2021-05-05 #1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-08-17 05:00:02 +0000 (EPOCH 1786942802)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-08-17 #10

Same first word

studyblue.eu

studyblue.nl

studyblue.com

Similar names

dustyblue.com

bluestudy.com

dustyblue.id

DNS History

12 records (7 active, 5 former)

●NSns1.markmonitor.com2026-06-14 → 2026-08-17 · 3 obs

○ 2017-02-13 20:17:44
● 2026-06-14 10:47:38
● 2026-08-17 05:39:20

●NSns2.markmonitor.com2026-06-14 → 2026-08-17 · 3 obs

○ 2017-02-13 20:17:44
● 2026-06-14 10:47:38
● 2026-08-17 05:39:20

●NSns3.markmonitor.com2026-06-14 → 2026-08-17 · 3 obs

○ 2017-02-13 20:17:44
● 2026-06-14 10:47:38
● 2026-08-17 05:39:20

●NSns4.markmonitor.com2026-06-14 → 2026-08-17 · 3 obs

○ 2017-02-13 20:17:44
● 2026-06-14 10:47:38
● 2026-08-17 05:39:20

●NSns5.markmonitor.com2026-06-14 → 2026-08-17 · 3 obs

○ 2017-02-13 20:17:44
● 2026-06-14 10:47:38
● 2026-08-17 05:39:20

●NSns6.markmonitor.com2026-06-14 → 2026-08-17 · 3 obs

○ 2017-02-13 20:17:44
● 2026-06-14 10:47:38
● 2026-08-17 05:39:20

●NSns7.markmonitor.com2026-06-14 → 2026-08-17 · 3 obs

○ 2017-02-13 20:17:44
● 2026-06-14 10:47:38
● 2026-08-17 05:39:20

○NSns71.domaincontrol.com2015-07-15 → 2017-02-13 · 4 obs

● 2015-07-15 03:04:00
● 2017-02-13 20:17:44
○ 2026-06-14 10:47:38
○ 2026-08-17 05:39:20

○NSns72.domaincontrol.com2015-07-15 → 2017-02-13 · 4 obs

● 2015-07-15 03:04:00
● 2017-02-13 20:17:44
○ 2026-06-14 10:47:38
○ 2026-08-17 05:39:20

○MXmailstore1.secureserver.net2015-07-15 → 2017-02-13 · 4 obs

● 2015-07-15 03:04:00
● 2017-02-13 20:17:44
○ 2026-06-14 10:47:38
○ 2026-08-17 05:39:20

○MXsmtp.secureserver.net2015-07-15 → 2017-02-13 · 4 obs

● 2015-07-15 03:04:00
● 2017-02-13 20:17:44
○ 2026-06-14 10:47:38
○ 2026-08-17 05:39:20

○A50.63.202.512015-07-15 → 2017-02-13 · 4 obs

● 2015-07-15 03:04:00
● 2017-02-13 20:17:44
○ 2026-06-14 10:47:38
○ 2026-08-17 05:39:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
studyblue.nl	ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com...	-

✅ Authoritative Response

Server:176.97.158.3

NS records: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyblue.nl (unsigned zone)

⏱️ Timing

Total: 609ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	7	`ns1.markmonitor.com, ns2.markmonitor.com...`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

Analysis

Name Servers

The DNS delegation for studyblue.nl covers 7 name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 4 more.

The name servers of studyblue.nl overlap at least partially with those of other domains — among them wormradar.com, walmartticket.com, biooil.ca and two more.

These name servers commonly co-occur with the name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Host names that have two IP addresses:

ns1.markmonitor.com maps to two IP addresses — 149.112.160.1 and 2620:10a:80a8::1.

ns2.markmonitor.com maps to two IP addresses — 176.97.158.1 and 2001:67c:10b8::1.

ns3.markmonitor.com maps to two IP addresses — 149.112.161.1 and 2620:10a:80a9::1.

ns4.markmonitor.com maps to two IP addresses — 192.174.68.1 and 2001:67c:1bc::1.

ns5.markmonitor.com maps to two IP addresses — 149.112.160.2 and 2620:10a:80a8::2.

ns6.markmonitor.com maps to two IP addresses — 176.97.158.3 and 2001:67c:10b8::3.

ns7.markmonitor.com maps to two IP addresses — 149.112.161.2 and 2620:10a:80a9::2.