`previewtrsnyc.com`

DNSSEC	⚠️ Not signed
NS	`a7.uberns.com` ⭐
		A	216.59.60.7^{TUT-AS216.59.60.0/24 Total Uptime Technologies LLC}
			PTR	`a7.uberns.com`
NS	`b7.uberns.com`
		A	2602:ffe2:54::7^{🇺🇸 TUT-AS2602:ffe2:54::/48 REACH (Customer Route)}
			PTR	`b7.uberns.com`
		A	216.59.57.7^{🇺🇸 TUT-AS216.59.57.0/24 Total Uptime Technologies LLC}
			PTR	`b7.uberns.com`
MX	`previewtrsnyc.com` ⭐
SOA	`a7.uberns.com`bxiao@trs.nyc.ny.us 2021-06-17 #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=1774700687

MX for

previewtrsnyc.com

Same first word

previewtrsnyc.com

previewtrsnyc.org

DNS History

10 records (3 active, 7 former)

●NSa7.uberns.com2026-03-28 → 2026-03-28 · 2 obs

○ 2017-04-09 05:45:52
● 2026-03-28 12:37:20

●NSb7.uberns.com2026-03-28 → 2026-03-28 · 2 obs

○ 2017-04-09 05:45:52
● 2026-03-28 12:37:20

○NSns1.p26.dynect.net2016-01-21 → 2017-04-09 · 4 obs

○ 2015-10-31 07:31:46
● 2016-01-21 20:56:30
● 2017-04-09 05:45:52
○ 2026-03-28 12:37:20

○NSns2.p26.dynect.net2016-01-21 → 2017-04-09 · 4 obs

○ 2015-10-31 07:31:46
● 2016-01-21 20:56:30
● 2017-04-09 05:45:52
○ 2026-03-28 12:37:20

○NSns3.p26.dynect.net2016-01-21 → 2017-04-09 · 4 obs

○ 2015-10-31 07:31:46
● 2016-01-21 20:56:30
● 2017-04-09 05:45:52
○ 2026-03-28 12:37:20

○NSns4.p26.dynect.net2016-01-21 → 2017-04-09 · 4 obs

○ 2015-10-31 07:31:46
● 2016-01-21 20:56:30
● 2017-04-09 05:45:52
○ 2026-03-28 12:37:20

○NSns91.worldnic.com2015-06-11 → 2015-10-31 · 4 obs

● 2015-06-11 15:28:20
● 2015-10-31 07:31:46
○ 2016-01-21 20:56:30
○ 2026-03-28 12:37:20

○NSns92.worldnic.com2015-06-11 → 2015-10-31 · 4 obs

● 2015-06-11 15:28:20
● 2015-10-31 07:31:46
○ 2016-01-21 20:56:30
○ 2026-03-28 12:37:20

●MXpreviewtrsnyc.com2026-03-28 → 2026-03-28 · 1 obs

● 2026-03-28 12:37:20

○A12.167.18.2382015-06-11 → 2017-04-09 · 3 obs

● 2015-06-11 15:28:20
● 2017-04-09 05:45:52
○ 2026-03-28 12:37:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
previewtrsnyc.com	a7.uberns.com, b7.uberns.com	3 records

✅ Authoritative Response

Server:216.59.57.7

NS records: a7.uberns.com, b7.uberns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for previewtrsnyc.com (unsigned zone)

⏱️ Timing

Total: 106ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`a7.uberns.com, b7.uberns.com`
MX	1	`previewtrsnyc.com (pri: 1)`
SOA	1	`a7.uberns.com bxiao.trs.nyc.ny.us`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (a7.uberns.com, b7.uberns.com, b7.uberns.com)

Analysis

Mail Server Role

previewtrsnyc.com serves as the mail server for previewtrsnyc.com.

Name Servers

Two name servers a7.uberns.com and b7.uberns.com handle the delegation for previewtrsnyc.com.

previewtrsnyc.com shares the same name server setup as other domains, for instance hsvutil.org, thegoodwinbeloit.com, pennhills.org, tcsfuel.com and midwestmfa.com.

previewtrsnyc.com at least partially shares name servers with other domains, for instance lookoutmms.com, asi1.net, productionsystems-usa.com, tegile.com and psi-nc.com.

These name servers are commonly used with the name servers a7.uberns.net, b7.uberns.net, b7.uberns.org, a7.uberns.org, a7.uberns.info, b7.uberns.info, a1.uberns.com and b1.uberns.com.

Host names with two IP numbers: b7.uberns.com points to 2602:ffe2:54::7 and 216.59.57.7.

Host names with one IP number: a7.uberns.com points to 216.59.60.7.

Mail Servers

previewtrsnyc.com is handled by a single mail server.

previewtrsnyc.com - robtex.com