Domain report: rr.com

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-09-30

TLD: .com (generic)
ICANN policies apply: yes
Registrar: CSC Corporate Domains, Inc.
Registered: 1 October 1996
Last changed: 26 September 2026
Expires: 30 September 2027
Status: client transfer prohibited
Registry nameservers: dns1.rr.com, dns2.rr.com, dns3.rr.com, dns5.rr.com, dns6.rr.com
RDAP server: https://rdap.verisign.com/com/v1/

i

.com is a generic TLD (gTLD)

Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.

#1
✓ TLD delegated and signed #2

.com is delegated in the root zone and DNSSEC-signed.
✓ Expires on 2027-09-30 #3

The registration is valid until 2027-09-30 (342 days).
✓ Transfer locked #4

Registry status: client transfer prohibited.
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

warn

dns1.rr.com, dns2.rr.com, dns3.rr.com, dns5.rr.com, dns6.rr.com

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: dns1.rr.com, dns2.rr.com, dns3.rr.com, dns5.rr.com, dns6.rr.com
NS in the zone: dns1.rr.com, dns2.rr.com, dns3.rr.com, dns5.rr.com, dns6.rr.com

Nameserver	Addresses	Network (AS)	Glue
dns1.rr.com	69.134.7.5	AS7843 TWC-7843-BB - Charter Communications Inc, US	69.134.7.5
dns2.rr.com	69.134.147.5	AS7843 TWC-7843-BB - Charter Communications Inc, US	69.134.147.5
dns3.rr.com	69.134.7.6	AS7843 TWC-7843-BB - Charter Communications Inc, US	69.134.7.6
dns5.rr.com	69.134.7.7	AS7843 TWC-7843-BB - Charter Communications Inc, US	69.134.7.7
dns6.rr.com	69.134.147.7	AS7843 TWC-7843-BB - Charter Communications Inc, US	76.85.228.83

✓ 5 nameservers #6

Delegated to dns1.rr.com, dns2.rr.com, dns3.rr.com, dns5.rr.com, dns6.rr.com.
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
!

Glue differs from the zone

The addresses at the parent (glue) differ from the addresses in the zone: dns6.rr.com (glue 76.85.228.83, zone 69.134.147.7). Update the glue at your registrar.

#8
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
✓ Nameservers in different networks #10

The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS7843 (TWC-7843-BB - Charter Communications Inc, US): 5 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
i

All nameserver names under .com

All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.

#12
!

No IPv6

None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

#13

info

5 of 5 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
dns1.rr.com 69.134.7.5	NOERROR, 112 ms, authoritative	no	yes / yes	refused	Negative ghostrider... the pattern is full.
dns2.rr.com 69.134.147.5	NOERROR, 157 ms, authoritative	no	yes / yes	refused	Negative ghostrider... the pattern is full.
dns3.rr.com 69.134.7.6	NOERROR, 109 ms, authoritative	no	yes / yes	refused	Negative ghostrider... the pattern is full.
dns5.rr.com 69.134.7.7	NOERROR, 112 ms, authoritative	no	yes / yes	refused	Negative ghostrider... the pattern is full.
dns6.rr.com 69.134.147.7	NOERROR, 133 ms, authoritative	no	yes / yes	refused	Negative ghostrider... the pattern is full.

✓ All respond #14

All 5 nameserver addresses answered.
✓ All authoritative #15

Every responding nameserver answers authoritatively for the zone.
✓ No recursion #16

The nameservers do not answer recursive queries for other domains.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: dns1.rr.com: "Negative ghostrider... the pattern is full."; dns2.rr.com: "Negative ghostrider... the pattern is full."; dns3.rr.com: "Negative ghostrider... the pattern is full."; dns5.rr.com: "Negative ghostrider... the pattern is full."; dns6.rr.com: "Negative ghostrider... the pattern is full.".

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✓ TCP supported #19

All nameservers answer over TCP.
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

pass

serial 2026081003 · primary dns1.rr.com

✓ Serial 2026081003 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 12h, retry 1h, expire 28d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver dns1.rr.com is one of the listed nameservers.
✓ Contact hostmaster@charter.com #25

The SOA RNAME hostmaster.charter.com means hostmaster@charter.com.
✓ Date-based serial #26

The serial 2026081003 follows the YYYYMMDDnn convention (2026-08-10).

warn

Not signed

info

11 records at the apex

Type	Value	TTL
SOA	dns1.rr.com. hostmaster.charter.com. 2026081003 43200 3600 2419200 3600	43200
NS	dns2.rr.com.	43200
NS	dns5.rr.com.	43200
NS	dns1.rr.com.	43200
NS	dns3.rr.com.	43200
NS	dns6.rr.com.	43200
A	71.74.186.228	14400
A	71.74.180.193	14400
MX	5 cdptpa-postmx01.email.rr.com.	14400
MX	5 dnvrco-postmx01.email.rr.com.	14400
TXT	"v=spf1 ip4:24.30.203.0/24 ip4:24.28.200.0/24 ip4:24.28.204.0/24 ip4:24.30.218.0/24 ip4:75.180.132.0/24 ip4:71.74.56.0/24 ip4:107.14.166.0/24 ip4:107.14.73.0/24 +mx ~all"	14400

✓ TTLs within range #32

TTLs: A 4h, MX 4h, NS 12h. The NS TTL at the parent is 2d and in the zone 12h; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
i

No CAA records

Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.

#35