`smartusys.com`

DNSSEC	⚠️ Not signed
A	50.57.251.249^{🇺🇸 LiquidWeb50.57.240.0/20 Liquid Web LLC}
NS	`dns1.stabletransit.com` ⭐
		A	69.20.95.4^{🇺🇸 RACKSPACE-DFW69.20.95.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218}
			PTR	`ns.rackspace.com`
NS	`dns2.stabletransit.com`
		A	65.61.188.4^{🇺🇸 RACKSPACE-LON65.61.188.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218}
			PTR	`ns2.rackspace.com`
MX	`mx1-us1.ppe-hosted.com` ⭐
		A	67.231.154.162^{🇺🇸 Proofpoint67.231.154.0/24 Inc.}
			PTR	`mx1-us1.ppe-hosted.com`
		A	148.163.129.50^{🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.}
			PTR	`mx1-us1.ppe-hosted.com`
MX	`mx2-us1.ppe-hosted.com` ⭐
		A	67.231.154.163^{🇺🇸 Proofpoint67.231.154.0/24 Inc.}
			PTR	`mx2-us1.ppe-hosted.com`
		A	148.163.129.51^{🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.}
			PTR	`mx2-us1.ppe-hosted.com`
TXT	`ppe-242b44766d7be35c43e320b964bee2a929cd8e5c`
TXT	`MS=ms34788981`
TXT	`v=spf1 a:dispatch-us.ppe-hosted.com ip4:208.82.142.0/24 ip4:68.232.146.191 ip...`
TXT	`atlassian-domain-verification=7sVZDSGtNOwrO0jYnrdM3HbMqpyifNG/9gIWjuNx0rJDjtZ...`
SOA	`dns1.stabletransit.com`ipadmin@stabletransit.com serial=1759944806

`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=1774580592

Subdomains

mail.smartusys.com

spam.smartusys.com

www.smartusys.com

Same first word

smartusys.net

smartusys.com

Similar names

stmaryssu.co.uk

DNS History

10 records (5 active, 5 former)

●NSdns1.stabletransit.com2015-05-03 → 2026-03-27 · 2 obs

● 2015-05-03 12:08:06
● 2026-03-27 03:22:20

●NSdns2.stabletransit.com2015-05-03 → 2026-03-27 · 2 obs

● 2015-05-03 12:08:06
● 2026-03-27 03:22:20

○MXmail.smartusys.com2015-05-03 → 2015-12-31 · 4 obs

● 2015-05-03 12:08:06
● 2015-12-31 23:03:34
○ 2016-04-06 04:21:02
○ 2026-03-27 03:22:20

●MXmx1-us1.ppe-hosted.com2026-02-15 → 2026-03-27 · 3 obs

○ 2017-07-20 20:52:24
● 2026-02-15 10:07:42
● 2026-03-27 03:22:20

○MXmx1.smartusys.iphmx.com2016-04-06 → 2017-07-20 · 5 obs

○ 2015-12-31 23:03:34
● 2016-04-06 04:21:02
● 2017-07-20 20:52:24
○ 2026-02-15 10:07:42
○ 2026-03-27 03:22:20

●MXmx2-us1.ppe-hosted.com2026-02-15 → 2026-03-27 · 3 obs

○ 2017-07-20 20:52:24
● 2026-02-15 10:07:42
● 2026-03-27 03:22:20

○MXmx2.smartusys.iphmx.com2016-04-06 → 2017-07-20 · 5 obs

○ 2015-12-31 23:03:34
● 2016-04-06 04:21:02
● 2017-07-20 20:52:24
○ 2026-02-15 10:07:42
○ 2026-03-27 03:22:20

○MXspam.smartusys.com2015-05-03 → 2015-10-17 · 4 obs

● 2015-05-03 12:08:06
● 2015-10-17 00:48:44
○ 2015-12-31 23:03:34
○ 2026-03-27 03:22:20

○A184.106.55.592015-05-03 → 2015-05-03 · 3 obs

● 2015-05-03 12:08:06
○ 2015-10-17 00:48:44
○ 2026-03-27 03:22:20

●A50.57.251.2492015-10-17 → 2026-03-27 · 3 obs

○ 2015-05-03 12:08:06
● 2015-10-17 00:48:44
● 2026-03-27 03:22:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
smartusys.com	dns1.stabletransit.com, dns2.stabletransit.com	2 records

✅ Authoritative Response

Server:65.61.188.4

NS records: dns1.stabletransit.com, dns2.stabletransit.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smartusys.com (unsigned zone)

⏱️ Timing

Total: 276ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`50.57.251.249`
NS	2	`dns2.stabletransit.com, dns1.stabletransit.com`
MX	2	`mx2-us1.ppe-hosted.com (pri: 10), mx1-us1.ppe-hosted.com (pri: 10)`
TXT	4	`ppe-242b44766d7be35c43e320b964bee2a929cd, atlassian-domain-verification=7sVZDSGtNO...`
SOA	1	`dns1.stabletransit.com ipadmin.stabletra`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns1.stabletransit.com, dns2.stabletransit.com)

Analysis

Hierarchy

smartusys.com is a parent of mail.smartusys.com, spam.smartusys.com and www.smartusys.com.

IP Addresses

smartusys.com points to a single IP: 50.57.251.249.

Other host names, such as www.smartusys.com, share IP numbers with smartusys.com.

Name Servers

Two name servers dns1.stabletransit.com and dns2.stabletransit.com handle delegation for smartusys.com.

smartusys.com uses the same name server setup as other domains, for example skiplotten.com, edulearn.com, ghirardocpa.com, safeformonline.com and paperscholar.com.

smartusys.com partially shares name servers with other domains; examples include dca.com.mx, sawtrycc.org.uk, messeww.com, img1.net and monstertruckworld.biz.

These name servers are commonly used with ns.rackspace.com, ns2.rackspace.com and dns.stabletransit.com.

Host names with one IP number: The host name dns1.stabletransit.com points to 69.20.95.4 and the host name dns2.stabletransit.com points to 65.61.188.4.

Mail Servers

smartusys.com is handled by two mail servers: mx1-us1.ppe-hosted.com and mx2-us1.ppe-hosted.com.

smartusys.com has the same mail server setup as other domains, including conantconstructionllc.com, glcbs.com, secure-wan.com, gcllc.net and select.net.

smartusys.com shares some mail servers with other domains, at least partially, such as bmapayroll.com, ironandearth.org, smalltownlawyer.com, customprinters.com and mtc1training.com.

Host names with two IP numbers:

mx1-us1.ppe-hosted.com points to: 67.231.154.162 and 148.163.129.50

mx2-us1.ppe-hosted.com points to: 67.231.154.163 and 148.163.129.51

smartusys.com - robtex.com

smartusys.com

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