`postmaster.rr.com`

DNSSEC	⚠️ Not signed
A	107.14.168.165^{🇺🇸 RoadRunner107.14.160.0/20 RR-Route}
		PTR	`postmaster.rr.com`
MX	`cdptpa-postmx01.email.rr.com` ⭐
		A	107.14.168.160^{🇺🇸 RoadRunner107.14.160.0/20 RR-Route}
			PTR	`cdptpa-postmx01.email.rr.com`
MX	`dnvrco-postmx01.email.rr.com` ⭐
		A	107.14.64.159^{🇺🇸 CHARTER_COMMUNICATIONS-BB107.14.64.0/21}
			PTR	`dnvrco-postmx01.email.rr.com`
TXT	`v=spf1 ip4:75.180.132.0/24 ip4:107.14.168.0/24 ip4:107.14.64.0/24 +mx -all`

`rr.com`

	DNSSEC	⚠️ Not signed
	A	71.74.180.193^{🇺🇸 CHARTER_COMMUNICATIONS-BB71.74.176.0/20 RR-Route}
	A	71.74.186.228^{🇺🇸 CHARTER_COMMUNICATIONS-BB71.74.176.0/20 RR-Route}
	NS	`dns1.rr.com` ⭐
	NS	`dns2.rr.com`
	NS	`dns3.rr.com`
	NS	`dns5.rr.com`
	NS	`dns6.rr.com`
	MX	`cdptpa-postmx01.email.rr.com` ⭐
	MX	`dnvrco-postmx01.email.rr.com` ⭐
	TXT	`v=spf1 ip4:24.30.203.0/24 ip4:24.28.200.0/24 ip4:24.28.204.0/24 ip4:24.30.218...`
	SOA	`dns1.rr.com`hostmaster@charter.com serial=2025060044

WOT: SAFE (90/100)
rank #5205 globally
rank #2605 in the tld
WOT: SAFE (90/100)
📈 Tranco rank: #2,530

PTR for

165.168.14.107.in-addr.arpa

Subdomains

feedback.postmaster.rr.com

Same first word

Similar names

teamsports.co

mrsteapots.com

masterpost.com

metasports.info

masterpost.it

spotmaster.ru

sportsteam.at

spotstream.com

spotstream.de

teamsports.mx

stampstore.ru

teamsports.management

teamsports.it

sportteams.cl

stampstore.us

topmasters.com

masterspot.de

spotstream.live

topstreams.pro

sportsmate.gr

topstreams.me

topstreams.de

streamspot.church

stampstore.nl

stopstream.co

sportsmeta.com

topmasters.net

masterpost.us

metasports.com

teamsports.com.au

teamsports.com.ua

sportsmate.no

stampstore.de

streamspot.net

metasports.com.py

sportsmate.org

sportsteam.eu

streamspot.com

teamsports.org

sportteams.com

stopmaster.com

smartposte.com

teamssport.com

teamsports.es

stampstore.com.au

sportteams.net

masterspot.com

metasports.eu

stampstore.net.au

metasports.com.br

topmasters.eu

spotmaster.de

spotmaster.app

teamsports.de

sportsteam.org

spotmaster.com

masterpost.com.br

topstreams.tv

tesmasport.si

opsmatters.com

sportmates.com

teamsports.cn

sportsmate.com

tprestamos.com

teamsports.eu

stampstore.org

sportsmate.net

sportsteam.de

streampost.ru

smartepost.com

topstreams.ca

masterpost.ru

sportsteam.com

stopmaster.ru

smartestop.com

spotstream.tv

teamsports.co.nz

stampstore.com.br

teamsports.at

stopstream.org

stopstream.com

sportsmate.co.nz

metasports.org

stampstore.com

DNS History

3 records (3 active, 0 former)

●MXcdptpa-postmx01.email.rr.com2015-08-31 → 2026-05-10 · 2 obs

● 2015-08-31 04:31:40
● 2026-05-10 04:47:30

●MXdnvrco-postmx01.email.rr.com2015-08-31 → 2026-05-10 · 2 obs

● 2015-08-31 04:31:40
● 2026-05-10 04:47:30

●A107.14.168.1652015-08-31 → 2026-05-10 · 2 obs

● 2015-08-31 04:31:40
● 2026-05-10 04:47:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rr.com	dns1.rr.com, dns2.rr.com, dns3.rr.com, dns6.rr.com...	5 records

✅ Authoritative Response

Server:69.134.7.5

NS records: dns1.rr.com, dns2.rr.com, dns3.rr.com, dns6.rr.com, dns5.rr.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rr.com (unsigned zone)

⏱️ Timing

Total: 145ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`107.14.168.165`
MX	2	`dnvrco-postmx01.email.rr.com (pri: 10), cdptpa-postmx01.email.rr.com (pri: 10)`
TXT	1	`v=spf1 ip4:75.180.132.0/24 ip4:107.14.16`

📌 Glue Records Collected

Total: 5

In-bailiwick: 5 (dns1.rr.com, dns2.rr.com, dns3.rr.com...)

Analysis

Hierarchy

feedback.postmaster.rr.com has postmaster.rr.com as its parent.

IP Addresses

postmaster.rr.com maps to IP address 107.14.168.165.

Mail Servers

Two mail servers handle postmaster.rr.com: cdptpa-postmx01.email.rr.com and dnvrco-postmx01.email.rr.com.

The mail server setup for postmaster.rr.com matches that of other domains, for instance rr.com.

postmaster.rr.com shares some mail servers with other domains, at least partially, for instance houston.rr.com.

Host names with a single IP address:

cdptpa-postmx01.email.rr.com points to 107.14.168.160

dnvrco-postmx01.email.rr.com points to 107.14.64.159

postmaster.rr.com - robtex.com