`librarydevelopment.nl`

DNSSEC	🔒 Signed (DS record present)
A	185.66.249.93^{🇳🇱 CLDIN-NL185.66.248.0/22 PCextreme - IPv4 Route}
		PTR	`6166.pcxda.nl`
NS	`ns091.auroradns.eu` ⭐
		A	2a00:f10:402:781:1c00:6ff:fe00:255e^{🇳🇱 CLDIN-NL2a00:f10::/29}
			PTR	`ns091.auroradns.eu`
		A	185.95.31.179^{🇳🇱 CLDIN-NL185.95.31.0/24}
			PTR	`ns091.auroradns.eu`
NS	`ns092.auroradns.nl`
		A	2a05:1500:702:0:1c00:96ff:fe00:2f^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	31.25.98.51^{🇳🇱 CLDIN-NL31.25.96.0/21 PCextreme B.V.}
NS	`ns093.auroradns.info`
		A	2a05:1500:fe00::c3ff:fe08:d01c^{🇳🇱 NL-BIT2a05:1500:fe00::/40}
		A	195.8.208.28^{🇳🇱 NL-BIT195.8.208.0/23}
MX	`mail.librarydevelopment.nl` ⭐
		A	185.66.249.93^{🇳🇱 CLDIN-NL185.66.248.0/22 PCextreme - IPv4 Route}
			PTR	`6166.pcxda.nl`
MX	`mx20.pcextreme.nl`⁽²⁰⁾
		A	2a05:1500:702:5:1c00:b3ff:fe00:26b6^{🇳🇱 CLDIN-NL2a05:1500::/29}
			PTR	`mx20.pcextreme.nl`
		A	92.63.174.78^{🇳🇱 CLDIN-NL92.63.168.0/21 PCextreme IPv4 Route}
			PTR	`mx20.pcextreme.nl`
TXT	`v=spf1 include:_spf4.pcextreme.nl include:_spf6.pcextreme.nl ~all`
SOA	`ns091.auroradns.eu`admin@auroradns.eu 2019-01-15 #1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-05-10 06:00:01 +0000 (EPOCH 1778392801)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-05-10 #12

Subdomains

mail.librarydevelopment.nl

Same first word

librarydevelopment.nl

Similar names

developmentlibrary.site

DNS History

9 records (6 active, 3 former)

●NSns091.auroradns.eu2020-04-11 → 2026-05-10 · 3 obs

○ 2017-04-07 14:50:40
● 2020-04-11 06:52:16
● 2026-05-10 06:54:48

●NSns092.auroradns.nl2020-04-11 → 2026-05-10 · 3 obs

○ 2017-04-07 14:50:40
● 2020-04-11 06:52:16
● 2026-05-10 06:54:48

●NSns093.auroradns.info2020-04-11 → 2026-05-10 · 3 obs

○ 2017-04-07 14:50:40
● 2020-04-11 06:52:16
● 2026-05-10 06:54:48

○NSv1.pcextreme.nl2015-05-02 → 2017-04-07 · 4 obs

● 2015-05-02 19:28:54
● 2017-04-07 14:50:40
○ 2020-04-11 06:52:16
○ 2026-05-10 06:54:48

○NSv2.pcextreme.nl2015-05-02 → 2017-04-07 · 4 obs

● 2015-05-02 19:28:54
● 2017-04-07 14:50:40
○ 2020-04-11 06:52:16
○ 2026-05-10 06:54:48

○NSv3.pcextreme.eu2015-05-02 → 2017-04-07 · 4 obs

● 2015-05-02 19:28:54
● 2017-04-07 14:50:40
○ 2020-04-11 06:52:16
○ 2026-05-10 06:54:48

●MXmail.librarydevelopment.nl2015-05-02 → 2026-05-10 · 2 obs

● 2015-05-02 19:28:54
● 2026-05-10 06:54:48

●MXmx20.pcextreme.nl2015-05-02 → 2026-05-10 · 2 obs

● 2015-05-02 19:28:54
● 2026-05-10 06:54:48

●A185.66.249.932015-05-02 → 2026-05-10 · 2 obs

● 2015-05-02 19:28:54
● 2026-05-10 06:54:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns1.dns.nl, ns3.dns.nl	-
librarydevelopment.nl	ns092.auroradns.nl, ns091.auroradns.eu, ns093.auroradns.info	-

✅ Authoritative Response

Server:195.8.208.28

NS records: ns092.auroradns.nl, ns091.auroradns.eu, ns093.auroradns.info

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 852ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.66.249.93`
NS	3	`ns092.auroradns.nl, ns091.auroradns.eu...`
MX	2	`mail.librarydevelopment.nl (pri: 10), mx20.pcextreme.nl (pri: 20)`
TXT	1	`v=spf1 include:_spf4.pcextreme.nl includ`
SOA	1	`ns091.auroradns.eu admin.auroradns.eu`

Analysis

Hierarchy

mail.librarydevelopment.nl has librarydevelopment.nl as its parent.

IP Addresses

librarydevelopment.nl maps to IP address 185.66.249.93.

Other host names such as 6166.pcxda.nl, mail.librarydevelopment.nl, powdi.nl and mail.powdi.nl share IP numbers with librarydevelopment.nl.

Name Servers

librarydevelopment.nl is delegated to name servers ns091.auroradns.eu, ns093.auroradns.info and ns092.auroradns.nl.

librarydevelopment.nl at least partially shares name servers with other domains such as turn.nl, yilmazreduktor.nl, openchargealliance.org, blgr.be and giomeubelen.nl.

Host names with two IP numbers:

ns091.auroradns.eu points to 2a00:f10:402:781:1c00:6ff:fe00:255e and 185.95.31.179.

ns093.auroradns.info points to 2a05:1500:fe00::c3ff:fe08:d01c and 195.8.208.28.

ns092.auroradns.nl points to 2a05:1500:702:0:1c00:96ff:fe00:2f and 31.25.98.51.

Mail Servers

Two mail servers handle librarydevelopment.nl: mail.librarydevelopment.nl and mx20.pcextreme.nl.

librarydevelopment.nl shares mail servers with other domains at least in part, for instance goedan.nl, schreursgerbera.com, heli-vos.nl, ezlp.nl and doubdle.tv.

these mail servers are commonly used alongside the mail servers primary.mail.pcextreme.nl.

Host names by IP count:

Two IP numbers: The host name mx20.pcextreme.nl points to 2a05:1500:702:5:1c00:b3ff:fe00:26b6 and 92.63.174.78.

One IP number: The host name mail.librarydevelopment.nl points to 185.66.249.93.

librarydevelopment.nl - robtex.com