`rtrcontracting.com`

DNSSEC	🔒 Signed (DS record present)
A	2a02:2350:5:111:e5:fb31:36eb:cb12^{🇩🇰 ONECOM2a02:2350::/32 One.com A/S}
A	46.30.215.92^{🇩🇰 ONECOM46.30.208.0/21 One.com A/S}
NS	`ns01.one.com` ⭐
		A	2001:67c:28cc::10^{ONECOM-INFRA2001:67c:28cc::/48}
			PTR	`ns01.one.com`
		A	195.206.121.10^{ONECOM-INFRA195.206.121.0/24}
			PTR	`ns01.one.com`
NS	`ns02.one.com`
		A	2001:67c:3c0::10^{🇩🇰 ONECOM2001:67c:3c0::/48}
			PTR	`ns02.one.com`
		A	185.10.11.10^{ONECOM185.10.11.0/24}
			PTR	`ns02.one.com`
MX	`rtrcontracting-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca0b::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo3p265cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00601.inbound.protection.outlook.com`
		A	52.101.89.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	52.101.89.1^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo0p265cu00201.inbound.protection.outlook.com`
		A	52.101.89.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo3p265cu00302.inbound.protection.outlook.com`
		A	52.101.99.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00502.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns01.one.com`hostmaster@one.com 2026-02-16 #4

`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=1774556957

Same first word

rtrcontracting.com

DNS History

14 records (5 active, 9 former)

●NSns01.one.com2020-02-02 → 2026-03-26 · 3 obs

○ 2016-07-08 06:59:28
● 2020-02-02 21:07:54
● 2026-03-26 20:40:32

●NSns02.one.com2020-02-02 → 2026-03-26 · 3 obs

○ 2016-07-08 06:59:28
● 2020-02-02 21:07:54
● 2026-03-26 20:40:32

○NSns1.systemdns.com2015-08-22 → 2016-03-09 · 4 obs

● 2015-08-22 15:00:24
● 2016-03-09 16:29:22
○ 2016-07-08 06:59:28
○ 2026-03-26 20:40:32

○NSns2.systemdns.com2015-08-22 → 2016-03-09 · 4 obs

● 2015-08-22 15:00:24
● 2016-03-09 16:29:22
○ 2016-07-08 06:59:28
○ 2026-03-26 20:40:32

○NSns3.systemdns.com2015-08-22 → 2016-03-09 · 4 obs

● 2015-08-22 15:00:24
● 2016-03-09 16:29:22
○ 2016-07-08 06:59:28
○ 2026-03-26 20:40:32

○MXmx1.pub.mailpod8-cph3.one.com2020-02-02 → 2020-02-02 · 3 obs

● 2020-02-02 21:07:54
○ 2026-03-11 00:09:52
○ 2026-03-26 20:40:32

○MXmx2.pub.mailpod8-cph3.one.com2020-02-02 → 2020-02-02 · 3 obs

● 2020-02-02 21:07:54
○ 2026-03-11 00:09:52
○ 2026-03-26 20:40:32

○MXmx3.pub.mailpod8-cph3.one.com2020-02-02 → 2020-02-02 · 3 obs

● 2020-02-02 21:07:54
○ 2026-03-11 00:09:52
○ 2026-03-26 20:40:32

●MXrtrcontracting-com.mail.protection.outlook.com2026-03-11 → 2026-03-26 · 3 obs

○ 2020-02-02 21:07:54
● 2026-03-11 00:09:52
● 2026-03-26 20:40:32

○A198.49.23.1452015-08-22 → 2016-03-09 · 4 obs

● 2015-08-22 15:00:24
● 2016-03-09 16:29:22
○ 2016-07-08 06:59:28
○ 2026-03-26 20:40:32

○A2a02:2350:5:107:fac0:0:e5fb:31362020-02-02 → 2020-02-02 · 4 obs

○ 2016-07-08 06:59:28
● 2020-02-02 21:07:54
○ 2026-03-11 00:09:52
○ 2026-03-26 20:40:32

●A2a02:2350:5:111:e5:fb31:36eb:cb122026-03-11 → 2026-03-26 · 3 obs

○ 2020-02-02 21:07:54
● 2026-03-11 00:09:52
● 2026-03-26 20:40:32

○A46.30.215.2352020-02-02 → 2020-02-02 · 4 obs

○ 2016-07-08 06:59:28
● 2020-02-02 21:07:54
○ 2026-03-11 00:09:52
○ 2026-03-26 20:40:32

●A46.30.215.922026-03-11 → 2026-03-26 · 3 obs

○ 2020-02-02 21:07:54
● 2026-03-11 00:09:52
● 2026-03-26 20:40:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net...	-
rtrcontracting.com	ns01.one.com, ns02.one.com	4 records

✅ Authoritative Response

Server:185.10.11.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 461ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.30.215.92`
AAAA	1	`2a02:2350:5:111:e5:fb31:36eb:cb12`
NS	2	`ns01.one.com, ns02.one.com`
MX	1	`rtrcontracting-com.mail.protection.outlo`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns01.one.com hostmaster.one.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns01.one.com, ns01.one.com, ns02.one.com...)

Analysis

IP Addresses

rtrcontracting.com resolves to two IP numbers: 2a02:2350:5:111:e5:fb31:36eb:cb12 and 46.30.215.92.

other host names including mail.handicapforum.dk, biosan-multiservice.at, reqman.se, bluecentury.be and agingdb.com share IP numbers with rtrcontracting.com.

Name Servers

rtrcontracting.com is delegated to two name servers ns01.one.com and ns02.one.com.

rtrcontracting.com shares the same name server setup as other domains, for instance geodima.be, fleshandbonestudios.com, xclusivt.se, adalberti.com and wateronline.be.

Host names with two IP numbers:

The host name ns01.one.com points to 2001:67c:28cc::10 and 195.206.121.10; the host name ns02.one.com points to 2001:67c:3c0::10 and 185.10.11.10.

Mail Servers

rtrcontracting.com is handled by a single mail server, rtrcontracting-com.mail.protection.outlook.com.

Host rtrcontracting-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca0b::, 2a01:111:f403:ca0b::1, 2a01:111:f403:ca1a::, 2a01:111:f403:ca1a::1, 52.101.89.0, 52.101.89.1, 52.101.89.2 and 52.101.99.2.

rtrcontracting.com - robtex.com