leadreference.com - dns.ninja

`leadreference.com`

DNSSEC	⚠️ Not signed
A	144.76.237.21^{🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1}
		PTR	`www.eventreference.com`
NS	`ns-375.awsdns-46.com` ⭐
		A	2600:9000:5301:7700::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-375.awsdns-46.com`
		A	205.251.193.119^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-375.awsdns-46.com`
NS	`ns-1506.awsdns-60.org`
		A	2600:9000:5305:e200::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1506.awsdns-60.org`
		A	205.251.197.226^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1506.awsdns-60.org`
NS	`ns-1707.awsdns-21.co.uk`
		A	2600:9000:5306:ab00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1707.awsdns-21.co.uk`
		A	205.251.198.171^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1707.awsdns-21.co.uk`
NS	`ns-522.awsdns-01.net`
		A	2600:9000:5302:a00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-522.awsdns-01.net`
		A	205.251.194.10^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-522.awsdns-01.net`
MX	`mx1-eu.emailsecurity.app` ⭐
		A	132.164.188.153^{🇬🇧 Microsoft132.164.0.0/16}
			PTR	`mx2-eu.emailsecurity.app`
MX	`mx2-eu.emailsecurity.app`⁽⁶⁾
		A	4.245.183.72^{🇮🇪 Microsoft4.240.0.0/12 MICROSOFT}
			PTR	`mx1-eu.emailsecurity.app`
MX	`cluster03a.mx-relay.com`⁽¹⁰⁰⁾
		A	38.111.198.185^{🇺🇸 COGENT38.0.0.0/8 Cogent}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
MX	`cluster03b.mx-relay.com`⁽¹⁰⁰⁾
		A	38.101.250.150^{🇺🇸 AS1663338.101.250.0/24}
			PTR	`fe3-r2-in.atl06.l.antispamcloud.com`
TXT	`MS=ms17019152`
TXT	`v=spf1 include:spf.mtasv.net include:smtp.eventreference.com ip4:176.9.151.23...`
SOA	`ns-375.awsdns-46.com`awsdns-hostmaster@amazon.com serial=1

`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=1781879675

Subdomains

smtp.leadreference.com

Same first word

leadreference.com

DNS History

13 records (9 active, 4 former)

●NSns-1506.awsdns-60.org2015-08-23 → 2026-06-19 · 2 obs

● 2015-08-23 00:49:20
● 2026-06-19 14:42:36

●NSns-1707.awsdns-21.co.uk2015-08-23 → 2026-06-19 · 2 obs

● 2015-08-23 00:49:20
● 2026-06-19 14:42:36

●NSns-375.awsdns-46.com2015-08-23 → 2026-06-19 · 2 obs

● 2015-08-23 00:49:20
● 2026-06-19 14:42:36

●NSns-522.awsdns-01.net2015-08-23 → 2026-06-19 · 2 obs

● 2015-08-23 00:49:20
● 2026-06-19 14:42:36

●MXcluster03a.mx-relay.com2017-06-28 → 2026-06-19 · 3 obs

○ 2016-04-14 15:47:50
● 2017-06-28 03:32:18
● 2026-06-19 14:42:36

●MXcluster03b.mx-relay.com2017-06-28 → 2026-06-19 · 3 obs

○ 2016-04-14 15:47:50
● 2017-06-28 03:32:18
● 2026-06-19 14:42:36

○MXd237720.a.ess.uk.barracudanetworks.com2026-04-03 → 2026-06-19 · 2 obs

○ 2026-04-03 00:20:40
○ 2026-06-19 14:42:36

○MXd237720.b.ess.uk.barracudanetworks.com2026-04-03 → 2026-06-19 · 2 obs

○ 2026-04-03 00:20:40
○ 2026-06-19 14:42:36

●MXmx1-eu.emailsecurity.app2026-04-03 → 2026-06-19 · 3 obs

○ 2017-06-28 03:32:18
● 2026-04-03 00:20:40
● 2026-06-19 14:42:36

●MXmx2-eu.emailsecurity.app2026-04-03 → 2026-06-19 · 3 obs

○ 2017-06-28 03:32:18
● 2026-04-03 00:20:40
● 2026-06-19 14:42:36

○MXsmtp.leadreference.com2015-08-23 → 2016-04-14 · 4 obs

● 2015-08-23 00:49:20
● 2016-04-14 15:47:50
○ 2017-06-28 03:32:18
○ 2026-06-19 14:42:36

○A136.243.71.602017-06-28 → 2017-06-28 · 4 obs

○ 2016-04-14 15:47:50
● 2017-06-28 03:32:18
○ 2026-04-03 00:20:40
○ 2026-06-19 14:42:36

●A144.76.237.212015-08-23 → 2026-06-19 · 5 obs

● 2015-08-23 00:49:20
● 2016-04-14 15:47:50
○ 2017-06-28 03:32:18
● 2026-04-03 00:20:40
● 2026-06-19 14:42:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, f.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net...	-
leadreference.com	ns-522.awsdns-01.net, ns-375.awsdns-46.com, ns-1707.awsdns-21.co.uk, ns-1506.awsdns-60.org	2 records

✅ Authoritative Response

Server:205.251.197.226

NS records: ns-522.awsdns-01.net, ns-375.awsdns-46.com, ns-1707.awsdns-21.co.uk, ns-1506.awsdns-60.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for leadreference.com (unsigned zone)

⏱️ Timing

Total: 326ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`144.76.237.21`
NS	4	`ns-1506.awsdns-60.org, ns-1707.awsdns-21.co.uk...`
MX	4	`cluster03a.mx-relay.com (pri: 100), cluster03b.mx-relay.com (pri: 100)...`
TXT	2	`MS=ms17019152, v=spf1 include:spf.mtasv.net include:smt`
SOA	1	`ns-375.awsdns-46.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-375.awsdns-46.com, ns-375.awsdns-46.com)

Analysis

Hierarchy

leadreference.com is a parent domain of smtp.leadreference.com.

IP Addresses

leadreference.com points to a single IP number: 144.76.237.21.

memberreference.com, www.eventreference.com and eventreference.com are examples of other host names that share IP numbers with leadreference.com.

Name Servers

leadreference.com has four authoritative name servers: ns-375.awsdns-46.com, ns-522.awsdns-01.net, ns-1506.awsdns-60.org and ns-1707.awsdns-21.co.uk.

leadreference.com shares at least some of its name servers with other domains, including principalplaybook.net, dl8b0xze5nij.cloudfront.net, buildwebrand.xyz and two others.

The host names ns-375.awsdns-46.com, ns-522.awsdns-01.net, ns-1506.awsdns-60.org and ns-1707.awsdns-21.co.uk each resolve to two IP addresses: ns-375.awsdns-46.com resolves to 205.251.193.119 and 2600:9000:5301:7700::1; ns-522.awsdns-01.net resolves to 205.251.194.10 and 2600:9000:5302:a00::1; ns-1506.awsdns-60.org resolves to 205.251.197.226 and 2600:9000:5305:e200::1; ns-1707.awsdns-21.co.uk resolves to 205.251.198.171 and 2600:9000:5306:ab00::1.

Mail Servers

leadreference.com has four mail servers: mx1-eu.emailsecurity.app, mx2-eu.emailsecurity.app, cluster03a.mx-relay.com and cluster03b.mx-relay.com.

leadreference.com shares mail servers — at least in part — with other domains, including deurtotaalmarkt.nl, privatisation.go.ke, fluent2.co.uk and two others.

These mail servers are frequently seen alongside the mail servers fallbackdt.mx-relay.com.

mx1-eu.emailsecurity.app, mx2-eu.emailsecurity.app, cluster03a.mx-relay.com and cluster03b.mx-relay.com each resolve to one IP address: mx1-eu.emailsecurity.app resolves to 132.164.188.153, mx2-eu.emailsecurity.app resolves to 4.245.183.72, cluster03a.mx-relay.com resolves to 38.111.198.185 and cluster03b.mx-relay.com resolves to 38.101.250.150.