`cosijn.com`

DNSSEC	⚠️ Not signed
A	149.210.130.53^{🇳🇱 TRANSIP-AS149.210.128.0/17 TransIP BV Amsterdam, The Netherlands}
		PTR	`149-210-130-53.colo.transip.net`
NS	`ns0.transip.net` ⭐ 🔒
		A	2a01:7c8:dddd:195::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns0.transip.net`
		A	195.135.195.195^{🇮🇹 TRANSIP-AS195.135.195.0/24 TransIP B.V.}
			PTR	`ns0.transip.net`
NS	`ns1.transip.nl` 🔒
		A	2a01:7c8:7000:195::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns1.transip.nl`
		A	195.8.195.195^{🇳🇱 TRANSIP-AS195.8.195.0/24 TransIP B.V.}
			PTR	`ns1.transip.nl`
NS	`ns2.transip.eu` 🔒
		A	2a01:7c8:f:c1f::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns2.transip.eu`
		A	37.97.199.195^{🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands}
			PTR	`ns2.transip.eu`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
		A	2607:f8b0:4001:c70::1a^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbful-in-f26.1e100.net`
		A	192.178.209.26^{🇺🇸 Google192.178.209.0/24}
			PTR	`yucbful-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`⁽³⁰⁾
		A	2607:f8b0:4023:1015::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f27.1e100.net`
		A	172.253.135.26^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f26.1e100.net`
MX	`aspmx4.googlemail.com`⁽³⁰⁾
		A	2607:f8b0:4023:3003::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f27.1e100.net`
		A	172.253.145.26^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-in-f26.1e100.net`
MX	`aspmx5.googlemail.com`⁽³⁰⁾
		A	2607:f8b0:4003:c4a::1b^{🇺🇸 Google2607:f8b0:4003::/48}
			PTR	`yutulth-in-f27.1e100.net`
		A	142.251.96.27^{🇺🇸 Google142.250.0.0/15}
			PTR	`yutulth-in-f27.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns0.transip.net`hostmaster@transip.nl 2025-04-21 #0

`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=1771291435

Same first word

cosijn.com

cosijn.net

cosijn.eu

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DNS History

10 records (10 active, 0 former)

●NSns0.transip.net2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●NSns1.transip.nl2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●NSns2.transip.eu2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●MXalt2.aspmx.l.google.com2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●MXaspmx.l.google.com2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●MXaspmx2.googlemail.com2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●MXaspmx3.googlemail.com2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●MXaspmx4.googlemail.com2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●MXaspmx5.googlemail.com2015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

●A149.210.130.532015-08-07 → 2026-03-23 · 2 obs

● 2015-08-07 10:02:44
● 2026-03-23 11:45:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cosijn.com	ns1.transip.nl, ns0.transip.net, ns2.transip.eu	-

✅ Authoritative Response

Server:37.97.199.195

NS records: ns1.transip.nl, ns0.transip.net, ns2.transip.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 486ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`149.210.130.53`
NS	3	`ns1.transip.nl, ns0.transip.net...`
MX	6	`ASPMX2.GOOGLEMAIL.com (pri: 30), ASPMX5.GOOGLEMAIL.com (pri: 30)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
SOA	1	`ns0.transip.net hostmaster.transip.nl`

Analysis

IP Addresses

cosijn.com points to a single IP number: 149.210.130.53.

Other host names, for instance 149-210-130-53.colo.transip.net, share IP numbers with cosijn.com.

Name Servers

The delegation for cosijn.com is handled by three name servers: ns2.transip.eu, ns0.transip.net and ns1.transip.nl.

cosijn.com at least partially shares name servers with other domains, for instance parkstad-online.nl, apptu.be, dvnwebhosting.nl, drop.nl and komendweekend.nl.