How is tfkc.de?

Be careful risk 30/100

On no blocklists we checked, no valid HTTPS certificate, the site did not answer (SSLCertVerificationError).

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

SSLCertVerificationError

HTTPS

invalid

certificate not read

Age

creation date not reported

Blocklists

listings across 5 lists

Everything we looked at

DNS records2 record types

A	157.90.96.109
NS	ns1.tfk-service.de ns2.tfk-service.de

Registrationregistrar not reported

last changed	2025-05-18
nameservers	ns1.tfk-service.de. ns2.tfk-service.de.
status	active

HTTPS certificatenot valid

valid	no
issuer	Let's Encrypt
covers	.gogonow.de, .wm.gogonow.de, gogonow.de
protocol	TLSv1.3

issued 2026-09-09expires 2026-12-08

DNSSECinsecure

Domain is not signed with DNSSEC

. → de → tfkc.de

Email authenticationpoor

SPF	warning `v=spf1 redirect=time-for-kids.de`
DMARC	none
DKIM	none of 1 common selectors

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

Security scoregrade C · 123/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

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

Advanced Security

10/25missing: Mail Server Configuration, IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 5 lookups

SURBL MultidomainURIBL MultidomainSpamCop157.90.96.109Barracuda157.90.96.109UCEPROTECT Level 1157.90.96.109

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=tfkc.de" \ -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=tfkc.de"

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

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

Watch tfkc.de. 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