How is t-online.de?

Not sure yet risk 10/100

On no blocklists we checked, valid HTTPS, the site answered 200 in 372 ms.

Why

02050100

finecarefulhigh risk

+10The registry did not report a usable creation date.
·Could not check domain age; retry before trusting this domain.

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

The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.

Site

200

372 ms · ends at www.t-online.de

HTTPS

78 d

left on a Let's Encrypt certificate

Age

creation date not reported

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	52.209.116.123 54.217.253.146 34.246.241.220
MX	10 mx03.t-online.de 10 mx02.t-online.de 10 mx00.t-online.de 10 mx01.t-online.de
NS	pns.dtag.de dns00.dns.t-ipnet.de dns50.dns.t-ipnet.de dns20.dns.t-ipnet.de dns02.dns.t-ipnet.de
TXT	google-site-verification=kLomR9c2yDgU-AUYNr9ma0XbvmzaOR_ZCv_ppOvbB6Y google-site-verification=iWR1RQhHveaJJ6nA9hzy33ShctIVRr1_n6o5H7n20jk google-site-verification=Zl48ijjwoVxIifNuZ5ozcydysO5owxNB1Z4V--dkgE0 google-site-verification=pOdK8ndAYqDGA8-03SAwZoeJvnSWE50S25j_63u0FWw google-site-verification=YCYBJAGc1hE2hjEuhkLfNgzbAc1WWOi5AKyoCDlrhcE BSI103622123645 google-site-verification=RuaGdsiIYwzDsAd0_s7yhFgYuYRc0Ylk01j209Mgvis google-site-verification=dNVp8NLTkRfU1YikWSzxglE25kMfUtFNyoiIxcnxiRc google-site-verification=kOtokoaNZwnXoLMiWNnaX3leVCyA9DaOlP1IJKYu1DI v=spf1 ip4:194.25.134.16/28 ip4:194.25.134.80/28 ~all google-site-verification=cKQjq9M78jbRX073a91_V3oBM76hqbQDnK2uGelDpto google-site-verification=s1qp7xSUgoBjWm5tTL7j8c-opGfm7YdlIBkutNbS_kA

Registrationregistrar not reported

last changed	2023-07-18
nameservers	dns00.dns.t-ipnet.de. dns02.dns.t-ipnet.de. dns20.dns.t-ipnet.de. dns50.dns.t-ipnet.de. pns.dtag.de.
status	active

HTTPS certificate78 days left

valid	yes
issuer	Let's Encrypt
covers	augenblicke.t-online.de, auto.t-online.de, autobewertung.t-online.de, beta-buzz.de, beta-buzz.eu, beta-buzz.net, betabuz.com, betabuz.de, betabuz.net, betabuzz.de, betabuzz.eu, betabuzz.net
protocol	TLSv1.3

issued 2026-10-14expires 2027-01-12

DNSSECinsecure

Domain is not signed with DNSSEC

. → de → t-online.de

Email authenticationfair

SPF	pass `v=spf1 ip4:194.25.134.16/28 ip4:194.25.134.80/28 ~all`
DMARC	warning policy none
DKIM	none of 1 common selectors

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

Security scoregrade B · 158/205

Basic Security

20/40missing: DNSSEC Enabled

Record Security

23/45missing: CAA Records, DMARC Record, DKIM Presence

Advanced Security

20/25missing: IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 11 lookups

SURBL MultidomainURIBL MultidomainSpamCop34.246.241.220Barracuda34.246.241.220UCEPROTECT Level 134.246.241.220SpamCop52.209.116.123Barracuda52.209.116.123UCEPROTECT Level 152.209.116.123SpamCop54.217.253.146Barracuda54.217.253.146UCEPROTECT Level 154.217.253.146

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=t-online.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=t-online.de"

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

Watch t-online.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