`ussf592.upstreamsecurity.net`

DNSSEC	⚠️ Not signed
A	50.145.4.59^{🇺🇸 COMCAST-IBONE50.128.0.0/9 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054}
		PTR	`ussf592.upstreamsecurity.net`
TXT	`v=spf1 include:upstreamsecurity.net -all`

`upstreamsecurity.net`

	DNSSEC	⚠️ Not signed
	A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
	A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
	A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
	A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
	NS	`pdns13.domaincontrol.com` ⭐
	NS	`pdns14.domaincontrol.com`
	MX	`upstreamsecurity-net.mail.protection.outlook.com` ⭐
	TXT	`p71r87nmcsfbzy6xt522btbr54lh7d62`
	TXT	`_ssvn6aregg0hka2cy8hdl6lt1a4er9e`
	TXT	`google-site-verification=8mB3JBHhtGxOvT(0x353378)UxfzyyzbhlZMAG4k0HXmRU9d-M`
	TXT	`v=spf1 IP4:50.145.4.0/24 IP4:38.99.86.32 IP4:43.228.187.180 IP4:38.99.86.33 I...`
	SOA	`pdns13.domaincontrol.com`dns@jomax.net 2025-10-08 #1

📈 Tranco rank: #377,191

PTR for

59.4.145.50.in-addr.arpa

MX for

napoleonohio.com

stmary.edu

orangeburgcounty.org

fbctroy.org

DNS History

1 record (1 active, 0 former)

●A50.145.4.592026-02-23 → 2026-04-23 · 2 obs

● 2026-02-23 10:03:16
● 2026-04-23 20:28:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	k.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net...	-
upstreamsecurity.net	pdns13.domaincontrol.com, pdns14.domaincontrol.com	-

✅ Authoritative Response

Server:97.74.110.56

NS records: pdns13.domaincontrol.com, pdns14.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for upstreamsecurity.net (unsigned zone)

⏱️ Timing

Total: 119ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`50.145.4.59`
TXT	1	`v=spf1 include:upstreamsecurity.net -all`

Analysis

Mail Server Role

ussf592.upstreamsecurity.net serves as a mail server for napoleonohio.com, stmary.edu, orangeburgcounty.org and fbctroy.org.

ussf362.upstreamsecurity.net, ussf36.upstreamsecurity.net and ussf582.upstreamsecurity.net are commonly used as mail servers together with ussf592.upstreamsecurity.net.

IP Addresses

ussf592.upstreamsecurity.net points to a single IP number: 50.145.4.59.

ussf592.upstreamsecurity.net - robtex.com

ussf592.upstreamsecurity.net

upstreamsecurity.net