How is twc.com?

Be careful risk 20/100

Registered 34 years ago, on no blocklists we checked, no valid HTTPS certificate, the site did not answer (SSLCertVerificationError).

Why

02050100

finecarefulhigh risk

+20No valid HTTPS certificate.

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

Site

down

SSLCertVerificationError

HTTPS

invalid

certificate not read

Age

34 years

registered 1992-08-31

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	142.136.168.58 142.136.168.7 142.136.81.135 142.136.81.136
MX	10 pkvw-mx.msg.pkvw.co.charter.net
NS	a11-66.akam.net dns6.rr.com dns5.rr.com a2-65.akam.net dns2.rr.com a18-65.akam.net a7-66.akam.net a1-187.akam.net dns3.rr.com dns1.rr.com a12-66.akam.net
TXT	v=spf1 redirect=a._spf.rr.com

RegistrationCSC Corporate Domains, Inc.

registrar	CSC Corporate Domains, Inc.
registered	1992-08-31
expires	2027-08-30
last changed	2026-08-26
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 1992-08-31expires 2027-08-30

HTTPS certificatenot valid

valid	no
issuer	GlobalSign nv-sa
covers	spectrum.com, baedirectsales.spectrum.com, bhnbusiness.brighthouse.com, business.spectrum.com, buy.spectrum.com, buy.spectrummobile.com, channelpartners.spectrum.com, charter.com, charterbusiness.com, cpartner.spectrum.com, directsales.spectrum.com, enterprise.spectrum.com
protocol	TLSv1.3

issued 2026-08-06expires 2027-02-21

DNSSECinsecure

Domain is not signed with DNSSEC

. → com → twc.com

Email authenticationpoor

SPF	warning `v=spf1 redirect=a._spf.rr.com`
DMARC	none
DKIM	none of 1 common selectors

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

Security scoregrade C · 138/205

Basic Security

20/40missing: DNSSEC Enabled

Record Security

8/45missing: CAA Records, SPF Record, DMARC Record, DKIM Presence

Advanced Security

15/25missing: Mail Server Configuration, IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 14 lookups

SURBL MultidomainURIBL MultidomainSpamCop142.136.168.7Barracuda142.136.168.7UCEPROTECT Level 1142.136.168.7SpamCop142.136.81.135Barracuda142.136.81.135UCEPROTECT Level 1142.136.81.135SpamCop142.136.81.136Barracuda142.136.81.136UCEPROTECT Level 1142.136.81.136SpamCop142.136.168.58Barracuda142.136.168.58UCEPROTECT Level 1142.136.168.58

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=twc.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=twc.com"

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

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

Watch twc.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