`zrtcontracting.com`

DNSSEC	⚠️ Not signed
A	158.252.25.66^{🇺🇸 Amazon158.252.0.0/15 EC2 DXB prefix}
		PTR	`ec2-158-252-25-66.me-central-1.compute.amazonaws.com`
NS	`ashley.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c047^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ashley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2047^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ashley.ns.cloudflare.com`
		A	108.162.192.71^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	172.64.32.71^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	173.245.58.71^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
NS	`west.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`west.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`west.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`west.ns.cloudflare.com`
		A	108.162.193.247^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`west.ns.cloudflare.com`
		A	172.64.33.247^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`west.ns.cloudflare.com`
		A	173.245.59.247^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`west.ns.cloudflare.com`
MX	`eu-smtp-inbound-1.mimecast.com` ⭐
		A	91.220.42.201^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.211^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.241^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.201^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.211^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.241^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
MX	`eu-smtp-inbound-2.mimecast.com` ⭐
		A	91.220.42.201^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.211^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.241^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.201^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.211^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.241^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
TXT	`MS=ms10207856`
TXT	`facebook-domain-verification=4qeoqxzs72p60f0iv7m9n5nvqevppm`
TXT	`v=spf1 include:eu._netblocks.mimecast.com include:spf.protection.outlook.com ...`
SOA	`ashley.ns.cloudflare.com`dns@cloudflare.com serial=2411152695

`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=1785725832

Same first word

zrtcontracting.com

DNS History

5 records (5 active, 0 former)

●NSashley.ns.cloudflare.com2026-07-26 → 2026-08-03 · 2 obs

● 2026-07-26 15:10:52
● 2026-08-03 02:58:58

●NSwest.ns.cloudflare.com2026-07-26 → 2026-08-03 · 2 obs

● 2026-07-26 15:10:52
● 2026-08-03 02:58:58

●MXeu-smtp-inbound-1.mimecast.com2026-07-26 → 2026-08-03 · 2 obs

● 2026-07-26 15:10:52
● 2026-08-03 02:58:58

●MXeu-smtp-inbound-2.mimecast.com2026-07-26 → 2026-08-03 · 2 obs

● 2026-07-26 15:10:52
● 2026-08-03 02:58:58

●A158.252.25.662026-07-26 → 2026-08-03 · 2 obs

● 2026-07-26 15:10:52
● 2026-08-03 02:58:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net...	-
zrtcontracting.com	ashley.ns.cloudflare.com, west.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.71

NS records: ashley.ns.cloudflare.com, west.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zrtcontracting.com (unsigned zone)

⏱️ Timing

Total: 509ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`158.252.25.66`
NS	2	`ashley.ns.cloudflare.com, west.ns.cloudflare.com`
MX	2	`eu-smtp-inbound-1.mimecast.com (pri: 0), eu-smtp-inbound-2.mimecast.com (pri: 0)`
TXT	3	`MS=ms10207856, facebook-domain-verification=4qeoqxzs72p...`
SOA	1	`ashley.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ashley.ns.cloudflare.com, ashley.ns.cloudflare.com, ashley.ns.cloudflare.com...)

Analysis

IP Addresses

zrtcontracting.com resolves to just one IP address, 158.252.25.66.

Name Servers

Two name servers handle the delegation for zrtcontracting.com: ashley.ns.cloudflare.com and west.ns.cloudflare.com.

zrtcontracting.com shares its NS records with other domains, for example puppydogonline.com, barodaplus.com, psql.co.uk and two others.

There is at least partial name server overlap between zrtcontracting.com and other domains — aq-888.com, turistico.cz, informatiqueamerix.com and two more among them.

The name servers clyde.ns.cloudflare.com, neil.ns.cloudflare.com and luciana.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

ashley.ns.cloudflare.com resolves to 108.162.192.71, 172.64.32.71 and 173.245.58.71 among others, with 3 other IP addresses in total.

west.ns.cloudflare.com resolves to 108.162.193.247, 172.64.33.247 and 173.245.59.247 among others, with 3 other IP addresses in total.

Mail Servers

zrtcontracting.com is served by two mail servers, eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

Among the domains sharing a mail server setup with zrtcontracting.com are redkitehousing.org.uk, braille.ie, directseafoods.co.uk and two others.

There is at least a partial MX overlap between zrtcontracting.com and other domains, including cds-cic.nhs.uk, osem.co.uk, sea-cadets.org and two others.

DNS names with 6 IP addresses:

eu-smtp-inbound-1.mimecast.com resolves to 91.220.42.201, 91.220.42.211 and 91.220.42.241 among others, with 3 other IP addresses in total.

eu-smtp-inbound-2.mimecast.com resolves to 91.220.42.201, 91.220.42.211 and 91.220.42.241 among others, with 3 other IP addresses in total.

eu-smtp-inbound-1.mimecast.com along with eu-smtp-inbound-2.mimecast.com each resolve to 91.220.42.201 IP addresses.

eu-smtp-inbound-1.mimecast.com along with eu-smtp-inbound-2.mimecast.com each resolve to 91.220.42.211 IP addresses.

eu-smtp-inbound-1.mimecast.com along with eu-smtp-inbound-2.mimecast.com each resolve to 91.220.42.241 IP addresses.

eu-smtp-inbound-1.mimecast.com along with eu-smtp-inbound-2.mimecast.com each resolve to 195.130.217.201 IP addresses.

eu-smtp-inbound-1.mimecast.com along with eu-smtp-inbound-2.mimecast.com each resolve to 195.130.217.211 IP addresses.

eu-smtp-inbound-1.mimecast.com along with eu-smtp-inbound-2.mimecast.com each resolve to 195.130.217.241 IP addresses.