How is tdnsstic1.cn?

Be careful risk 30/100

No valid HTTPS certificate, the site did not answer (OSError).

Why

02050100

finecarefulhigh risk

+10The registry did not report a usable creation date.
+20No valid HTTPS certificate.

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

Site

down

OSError

HTTPS

invalid

Could not resolve host (ENODATA)

Age

creation date not reported

Blocklists

listings across 2 lists

Everything we looked at

DNS records1 record types

NS	ns4.dnsv5.com ns3.dnsv5.com

Registration北京新网数码信息技术有限公司

registrar	北京新网数码信息技术有限公司
nameservers	ns1.tdnsstic1.cn ns2.tdnsstic1.cn ns3.tdnsstic1.cn ns3.dnsv5.com ns4.dnsv5.com
status	clientDeleteProhibited clientUpdateProhibited clientTransferProhibited

HTTPS certificatenot valid

valid	no
problem	Could not resolve host (ENODATA)

DNSSECinsecure

Domain is not signed with DNSSEC

. → cn → tdnsstic1.cn

Email authenticationpoor

SPF	none
DMARC	none
DKIM	none of 1 common selectors

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

Security scoregrade D · 95/190

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

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

Advanced Security

5/25missing: Mail Server Configuration, SOA Record Configuration, IPv6 Support

Domain Reputation

35/35

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 2 lookups

SURBL MultidomainURIBL Multidomain

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=tdnsstic1.cn" \ -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=tdnsstic1.cn"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on tdnsstic1.cn. Reference: /llms.txt.

IPv6. Does tdnsstic1.cn work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch tdnsstic1.cn. 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