How is rr.com?

Be careful risk 20/100

Registered 30 years ago, on no blocklists we checked, no valid HTTPS certificate, the site did not answer (timed out).

Why

02050100

finecarefulhigh risk

+20No valid HTTPS certificate.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

Site

down

timed out

HTTPS

invalid

Connection timed out

Age

30 years

registered 1996-10-01

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	71.74.186.228 71.74.180.193
MX	5 cdptpa-postmx01.email.rr.com 5 dnvrco-postmx01.email.rr.com
NS	dns6.rr.com dns3.rr.com dns2.rr.com dns1.rr.com dns5.rr.com
TXT	v=spf1 ip4:24.30.203.0/24 ip4:24.28.200.0/24 ip4:24.28.204.0/24 ip4:24.30.218.0/24 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

RegistrationCSC Corporate Domains, Inc.

registrar	CSC Corporate Domains, Inc.
registered	1996-10-01
expires	2027-09-30
last changed	2026-09-26
owner	Charter Communications Operating, LLC
nameservers	dns1.rr.com dns2.rr.com dns3.rr.com dns5.rr.com dns6.rr.com
status	client transfer prohibited

registered 1996-10-01expires 2027-09-30

HTTPS certificatenot valid

valid	no
problem	Connection timed out

DNSSECinsecure

Domain is not signed with DNSSEC

. → com → rr.com

Email authenticationpoor

SPF	pass `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`
DMARC	none
DKIM	none of 1 common selectors

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade D · 95/205

Basic Security

0/40missing: DNSSEC Enabled, Multiple Nameservers, Nameserver Diversity

Record Security

0/45missing: CAA Records, SPF Record, DMARC Record, DKIM Presence

Advanced Security

0/25missing: Mail Server Configuration, SOA Record Configuration, IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 8 lookups

SURBL MultidomainURIBL MultidomainSpamCop71.74.186.228Barracuda71.74.186.228UCEPROTECT Level 171.74.186.228SpamCop71.74.180.193Barracuda71.74.180.193UCEPROTECT Level 171.74.180.193

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.

curl "https://how.is/v1/domain/trust?domain=rr.com" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=rr.com"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on rr.com. Reference: /llms.txt.

IPv6. Does rr.com work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch rr.com. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.

Watch — $1 / 30 days