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Total

DNS

Email

Security

Network

100

Availability

Domaint-online.de

IPv43

IPv60

MX records4

StatusActive

Domain technical report

News & E-Mail bei t-online | Politik, Sport, Unterhaltung & Ratgeber

t-online.de

Aktuelle News aus Politik, Sport, Unterhaltung, Wirtschaft & Finanzen | Ratgeber Leben, Gesundheit und Heim & Garten | E-Mail und Shopping bei t-online.

Generated: 2026-08-08T20:47:06-05:00 · Cached result

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IPv43

IPv60

MX4

NS5

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

3 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

5 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

4 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

✓

MTA-STS5 / 5 pts · Mail

Mail transport policy.

✓

TLS-RPT5 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

73 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: ec2-54-217-253-146.eu-west-1.compute.amazonaws.com

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

3 record(s)

54.217.253.146
52.209.116.123
34.246.241.220

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

4 record(s)

10 mx03.t-online.de.
10 mx02.t-online.de.
10 mx01.t-online.de.
10 mx00.t-online.de.

TXT

11 record(s)

"BSI103622123645"
"google-site-verification=YCYBJAGc1hE2hjEuhkLfNgzbAc1WWOi5AKyoCDlrhcE"
"google-site-verification=kLomR9c2yDgU-AUYNr9ma0XbvmzaOR_ZCv_ppOvbB6Y"
"google-site-verification=pOdK8ndAYqDGA8-03SAwZoeJvnSWE50S25j_63u0FWw"
"google-site-verification=kOtokoaNZwnXoLMiWNnaX3leVCyA9DaOlP1IJKYu1DI"
"google-site-verification=RuaGdsiIYwzDsAd0_s7yhFgYuYRc0Ylk01j209Mgvis"
"google-site-verification=cKQjq9M78jbRX073a91_V3oBM76hqbQDnK2uGelDpto"
"google-site-verification=dNVp8NLTkRfU1YikWSzxglE25kMfUtFNyoiIxcnxiRc"
"google-site-verification=Zl48ijjwoVxIifNuZ5ozcydysO5owxNB1Z4V--dkgE0"
"v=spf1 ip4:194.25.134.16/28 ip4:194.25.134.80/28 ~all"
"google-site-verification=s1qp7xSUgoBjWm5tTL7j8c-opGfm7YdlIBkutNbS_kA"

NS

5 record(s)

dns20.dns.t-ipnet.de.
dns00.dns.t-ipnet.de.
dns50.dns.t-ipnet.de.
pns.dtag.de.
dns02.dns.t-ipnet.de.

SOA

1 record(s)

dns00.dns.t-ipnet.de. dns.telekom.de. 2026072300 10800 1800 3024000 3600

SPF

Configured

v=spf1 ip4:194.25.134.16/28 ip4:194.25.134.80/28 ~all

DMARC

Configured

v=DMARC1; p=none; rua=mailto:dmarc-rua@rx.t-online.de

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

News & E-Mail bei t-online | Politik, Sport, Unterhaltung & Ratgeber

Description

Aktuelle News aus Politik, Sport, Unterhaltung, Wirtschaft & Finanzen | Ratgeber Leben, Gesundheit und Heim & Garten | E-Mail und Shopping bei t-online.

Final URL

https://www.t-online.de/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.t-online.de/

Version

Server

envoy

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

t-online.de

Valid from

2026-07-23T07:02:17-05:00

Valid until

2026-10-21T07:02:16-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

—

X-Frame-OptionsNot detected

✓

Referrer PolicyImplemented

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

34.246.241.220, 52.209.116.123, 54.217.253.146

152,66 ms

Cloudflare

1.1.1.1

34.246.241.220, 52.209.116.123, 54.217.253.146

147,65 ms

Quad9

9.9.9.9

34.246.241.220, 52.209.116.123, 54.217.253.146

23,50 ms

OpenDNS

208.67.222.222

34.246.241.220, 52.209.116.123, 54.217.253.146

1.143,73 ms

AdGuard

94.140.14.14

34.246.241.220, 52.209.116.123, 54.217.253.146

242,79 ms

IP, geolocation and ASNAssociated network information

54.217.253.146

No data

success

country

region

city

asn

organization

isp

52.209.116.123

No data

success

country

region

city

asn

organization

isp

34.246.241.220

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mx03.t-online.de

Port 25: Closed/unreachable - 0.6 ms - 
Port 465: Closed/unreachable - 129.6 ms - 
Port 587: Closed/unreachable - 255.1 ms -

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