`delpher.nl`

DNSSEC	🔒 Signed (DS record present)
A	195.169.50.8^{🇳🇱 SURFNET-NL195.169.0.0/16 SURFnet CIDR Block VI}
NS	`ns1-konbib.kb.nl` ⭐ ⚠️ Not in zone NS records
		A	192.87.31.175^{🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV}
			PTR	`ns1-konbib.kb.nl`
NS	`ns1.surfnet.nl`
		A	2001:610:1:800a:192:87:106:101^{🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block}
			PTR	`ns1.surfnet.nl`
		A	192.87.106.101^{🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV}
			PTR	`ns1.surfnet.nl`
NS	`ns1.zurich.surf.net`
		A	2001:620:0:9::1103^{🇨🇭 Switch2001:620::/32 SWITCH, The Swiss Education & Research Network}
			PTR	`ns1.zurich.surf.net`
		A	195.176.255.9^{🇨🇭 Switch195.176.224.0/19 SWITCH-AGGR.102}
			PTR	`ns1.zurich.surf.net`
MX	`delpher-nl.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::1^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::7^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00307.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::9^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00601.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.68.27^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00503.inbound.protection.outlook.com`
		A	52.101.68.39^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00607.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
TXT	`HARICA-KsfhqGHPl4i75hbdpbp`
TXT	`v=spf1 redirect=_s936alem2.sdmarc.net`
TXT	`HiIZBKAGJgpgOs0UVdIAtY8w04ZoiSblb3BNgKI0xXv7EpXGHGEaksOOmzby84qWAQM8OPDgSuxQk...`
TXT	`MS=ms55969826`
SOA	`ns1-konbib.kb.nl`postmaster@kb.nl serial=2015024850

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-07-26 04:30:02 +0000 (EPOCH 1785040202)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-07-26 #9

rank #38591 globally
rank #292 in the tld
📈 Tranco rank: #42,939

Subdomains

www.delpher.nl

geheugen.delpher.nl

Same first word

delpher.nl

delpher.od.ua

delpher.net

delpher.com

delpher.eu

Similar names

dhelper.de

edhlper.de

edelphr.com

redhelp.cn

redhelp.org

redhelp.co.uk

prehled.eu

lepherd.co.uk

DNS History

8 records (5 active, 3 former)

●NSns1-konbib.kb.nl2015-06-11 → 2026-07-26 · 2 obs

● 2015-06-11 21:45:54
● 2026-07-26 05:13:02

●NSns1.surfnet.nl2015-06-11 → 2026-07-26 · 2 obs

● 2015-06-11 21:45:54
● 2026-07-26 05:13:02

●NSns1.zurich.surf.net2015-06-11 → 2026-07-26 · 2 obs

● 2015-06-11 21:45:54
● 2026-07-26 05:13:02

●MXdelpher-nl.mail.protection.outlook.com2026-03-23 → 2026-07-26 · 3 obs

○ 2017-08-29 03:46:40
● 2026-03-23 16:44:06
● 2026-07-26 05:13:02

○MXmx-1.mf.surf.net2015-06-11 → 2017-08-29 · 4 obs

● 2015-06-11 21:45:54
● 2017-08-29 03:46:40
○ 2026-03-23 16:44:06
○ 2026-07-26 05:13:02

○MXmx-a.mf.surf.net2015-06-11 → 2017-08-29 · 4 obs

● 2015-06-11 21:45:54
● 2017-08-29 03:46:40
○ 2026-03-23 16:44:06
○ 2026-07-26 05:13:02

○A192.87.31.1532015-06-11 → 2017-08-29 · 4 obs

● 2015-06-11 21:45:54
● 2017-08-29 03:46:40
○ 2026-03-23 16:44:06
○ 2026-07-26 05:13:02

●A195.169.50.82026-03-23 → 2026-07-26 · 3 obs

○ 2017-08-29 03:46:40
● 2026-03-23 16:44:06
● 2026-07-26 05:13:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
delpher.nl	ns1.zurich.surf.net, ns1.surfnet.nl, ns1-konbib.kb.nl	3 records

✅ Authoritative Response

Server:195.176.255.9

NS records: ns1.zurich.surf.net, ns1.surfnet.nl, ns1-konbib.kb.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 625ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`195.169.50.8`
NS	2	`ns1.surfnet.nl, ns1.zurich.surf.net`
MX	1	`delpher-nl.mail.protection.outlook.com (`
TXT	4	`HiIZBKAGJgpgOs0UVdIAtY8w04ZoiSblb3BNgKI0, v=spf1 redirect=_s936alem2.sdmarc.net...`
SOA	1	`ns1-konbib.kb.nl postmaster.kb.nl`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.surfnet.nl, ns1.surfnet.nl, ns1-konbib.kb.nl)

Analysis

Hierarchy

The parent domain of www.delpher.nl and geheugen.delpher.nl is delpher.nl.

IP Addresses

delpher.nl directs to one IP number, which is 195.169.50.8.

There are other host names — www.delpher.nl among them — that share IP numbers with delpher.nl.

Name Servers

DNS for delpher.nl is handled by three authoritative name servers: ns1-konbib.kb.nl, ns1.surfnet.nl and ns1.zurich.surf.net.

There is at least partial name server overlap between delpher.nl and other domains — openorbit.nl, geredetwijfel.nl, worldklems.net and two more among them.

These name servers regularly appear alongside ns2.surfnet.nl, ns3.surfnet.nl, ns0.socialhistoryservices.org and 7 other name servers in NS record sets.

Hosts with two IP numbers each:

ns1.surfnet.nl has two IP addresses: 192.87.106.101 and 2001:610:1:800a:192:87:106:101.

ns1.zurich.surf.net has two IP addresses: 195.176.255.9 and 2001:620:0:9::1103.

Hosts that resolve to one IP address:

ns1-konbib.kb.nl directs to 192.87.31.175.

Mail Servers

delpher.nl routes its mail through a single mail server, delpher-nl.mail.protection.outlook.com.

delpher-nl.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.68.12, 52.101.68.27 and 52.101.68.39, along with 5 other.

delpher.nl - robtex.com

delpher.nl

nl

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`delpher.nl`

`nl`