`challengebikes.com`

DNSSEC	🔒 Signed (DS record present)
A	2a02:898:84::7^{🇳🇱 COLOCLUE-AS2a02:898::/32 Netwerkvereniging Coloclue, Amsterdam, Netherlands}
		PTR	`www.welmers.net`
A	94.142.245.147^{🇳🇱 COLOCLUE-AS94.142.240.0/21 Netwerkvereniging Coloclue, Amsterdam, Netherlands}
NS	`ns1.dn-s.nl` ⭐
		A	2a06:2ec0:1::10^{🇳🇱 AS-ZXCS2a06:2ec0::/32}
			PTR	`ns1.zxcs.nl`
		A	185.104.28.19^{🇳🇱 AS-ZXCS185.104.28.0/24}
			PTR	`ns1.zxcs.nl`
NS	`ns2.dn-s.nl`
		A	2a03:b0c0:3:d0::116:2001^{🇩🇪 DIGITALOCEAN2a03:b0c0:3::/48 DigitalOcean}
			PTR	`ns2.zxcs.nl`
		A	46.101.179.64^{🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean}
			PTR	`ns2.zxcs.nl`
NS	`ns3.dn-s.nl`
		A	2a03:b0c0:2:d0::57:1001^{🇳🇱 DIGITALOCEAN2a03:b0c0:2::/48 DigitalOcean}
			PTR	`ns3.zxcs.nl`
		A	178.62.208.8^{🇳🇱 DIGITALOCEAN178.62.192.0/18 DigitalOcean}
			PTR	`ns3.zxcs.nl`
NS	`ns4.dn-s.nl`
		A	2a06:2ec0:1:a::d53^{🇳🇱 AS-ZXCS2a06:2ec0::/32}
			PTR	`ns.zxcs.de`
		A	185.220.172.14^{🇩🇪 AS-ZXCS185.220.172.0/24 VIMEXX}
			PTR	`ns.zxcs.de`
TXT	`v=spf1 a mx include:_spf.premiumantispam.nl ~all`
SOA	`ns1.dn-s.nl`hostmaster@challengebikes.com 2021-01-01 #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=1774524222

WOT: SAFE (68/100)

Previously MX for

challengebikes.com

Same first word

challengebikes.com

DNS History

24 records (6 active, 18 former)

○NSns0.transip.net2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-14 22:42:18
● 2020-01-12 07:11:18
○ 2026-03-01 18:59:16
○ 2026-03-26 11:48:30

●NSns1.dn-s.nl2026-03-01 → 2026-03-26 · 3 obs

○ 2020-01-12 07:11:18
● 2026-03-01 18:59:16
● 2026-03-26 11:48:30

○NSns1.nameweb.biz2007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 20:53:46
○ 2015-06-05 02:41:56
○ 2026-03-26 11:48:30

○NSns1.transip.nl2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-14 22:42:18
● 2020-01-12 07:11:18
○ 2026-03-01 18:59:16
○ 2026-03-26 11:48:30

●NSns2.dn-s.nl2026-03-01 → 2026-03-26 · 3 obs

○ 2020-01-12 07:11:18
● 2026-03-01 18:59:16
● 2026-03-26 11:48:30

○NSns2.nameweb.biz2007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 20:53:46
○ 2015-06-05 02:41:56
○ 2026-03-26 11:48:30

○NSns2.transip.eu2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-14 22:42:18
● 2020-01-12 07:11:18
○ 2026-03-01 18:59:16
○ 2026-03-26 11:48:30

●NSns3.dn-s.nl2026-03-01 → 2026-03-26 · 3 obs

○ 2020-01-12 07:11:18
● 2026-03-01 18:59:16
● 2026-03-26 11:48:30

○NSns3.nameweb.biz2007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 20:53:46
○ 2015-06-05 02:41:56
○ 2026-03-26 11:48:30

●NSns4.dn-s.nl2026-03-01 → 2026-03-26 · 3 obs

○ 2020-01-12 07:11:18
● 2026-03-01 18:59:16
● 2026-03-26 11:48:30

○NSns4.nameweb.biz2007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 20:53:46
○ 2015-06-05 02:41:56
○ 2026-03-26 11:48:30

○NSns5.namewebdns.com2007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 20:53:46
○ 2015-06-05 02:41:56
○ 2026-03-26 11:48:30

○NSnsa2.aldingha.net2015-06-05 → 2017-03-14 · 5 obs

○ 2007-11-13 20:53:46
● 2015-06-05 02:41:56
● 2017-03-14 22:42:18
○ 2020-01-12 07:11:18
○ 2026-03-26 11:48:30

○NSnsb1.aldingha.net2015-06-05 → 2017-03-14 · 5 obs

○ 2007-11-13 20:53:46
● 2015-06-05 02:41:56
● 2017-03-14 22:42:18
○ 2020-01-12 07:11:18
○ 2026-03-26 11:48:30

○NSnsb2.aldingha.net2015-06-05 → 2017-03-14 · 5 obs

○ 2007-11-13 20:53:46
● 2015-06-05 02:41:56
● 2017-03-14 22:42:18
○ 2020-01-12 07:11:18
○ 2026-03-26 11:48:30

○NSnsb3.aldingha.net2015-06-05 → 2017-03-14 · 5 obs

○ 2007-11-13 20:53:46
● 2015-06-05 02:41:56
● 2017-03-14 22:42:18
○ 2020-01-12 07:11:18
○ 2026-03-26 11:48:30

○MXchallengebikes.com2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-14 22:42:18
● 2020-01-12 07:11:18
○ 2026-03-01 18:59:16
○ 2026-03-26 11:48:30

○MXmail.challengebikes.com2015-06-05 → 2017-03-14 · 5 obs

○ 2007-11-13 20:53:46
● 2015-06-05 02:41:56
● 2017-03-14 22:42:18
○ 2020-01-12 07:11:18
○ 2026-03-26 11:48:30

○A2a01:7c8:3:1337::272020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-14 22:42:18
● 2020-01-12 07:11:18
○ 2026-03-01 18:59:16
○ 2026-03-26 11:48:30

●A2a02:898:84::72026-03-01 → 2026-03-26 · 3 obs

○ 2020-01-12 07:11:18
● 2026-03-01 18:59:16
● 2026-03-26 11:48:30

○A37.97.254.272020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-14 22:42:18
● 2020-01-12 07:11:18
○ 2026-03-01 18:59:16
○ 2026-03-26 11:48:30

○A62.182.62.672015-06-05 → 2017-03-14 · 5 obs

○ 2007-11-13 20:53:46
● 2015-06-05 02:41:56
● 2017-03-14 22:42:18
○ 2020-01-12 07:11:18
○ 2026-03-26 11:48:30

○A77.73.97.1422007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 20:53:46
○ 2015-06-05 02:41:56
○ 2026-03-26 11:48:30

●A94.142.245.1472026-03-01 → 2026-03-26 · 3 obs

○ 2020-01-12 07:11:18
● 2026-03-01 18:59:16
● 2026-03-26 11:48:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
challengebikes.com	ns1.dn-s.nl, ns2.dn-s.nl, ns3.dn-s.nl, ns4.dn-s.nl	-

✅ Authoritative Response

Server:185.220.172.14

NS records: ns1.dn-s.nl, ns2.dn-s.nl, ns3.dn-s.nl, ns4.dn-s.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 3774ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`94.142.245.147`
AAAA	1	`2a02:898:84::7`
NS	4	`ns2.dn-s.nl, ns1.dn-s.nl...`
TXT	1	`v=spf1 a mx include:_spf.premiumantispam`
SOA	1	`ns1.dn-s.nl hostmaster.challengebikes.co`

Analysis

IP Addresses

challengebikes.com resolves to two IP numbers: 2a02:898:84::7 and 94.142.245.147.

Other host names, for instance fietsverlichting.com, welmers.eu, www.welmers.net, rotorbike.nl and velomobiel.nl share IP numbers with challengebikes.com.

Name Servers

challengebikes.com is delegated to four name servers: ns1.dn-s.nl, ns2.dn-s.nl, ns3.dn-s.nl and ns4.dn-s.nl.

challengebikes.com shares some name servers with other domains, for example sofon.de, soundmount.de, gvveilermark.nl, donjondecrupet.com and mbfadvocaten.com.

These name servers are often used together with ns2.dn-s.be, ns3.dn-s.eu and ns4.dn-s.org.

Host names with two IP numbers

Two IPs per host:

ns1.dn-s.nl points to 2a06:2ec0:1::10 and 185.104.28.19

ns2.dn-s.nl points to 2a03:b0c0:3:d0::116:2001 and 46.101.179.64

ns3.dn-s.nl points to 2a03:b0c0:2:d0::57:1001 and 178.62.208.8

ns4.dn-s.nl points to 2a06:2ec0:1:a::d53 and 185.220.172.14

challengebikes.com - robtex.com