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89
Total
95
DNS
90
Email
73
Security
85
Network
100
Availability
Domaintu-darmstadt.de
IPv41
IPv61
MX records3
StatusActive
Domain technical report

Home – TU Darmstadt

tu-darmstadt.de

Homepage der Technischen Universität Darmstadt, Universität in Hessen, Deutschland.

Generated: 2026-08-09T05:14:22-05:00 · Cached result

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IPv41
IPv61
MX3
NS5

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 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 chain15 / 15 pts · Dns

DS and DNSKEY detected.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

3 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

181 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: hrz-srd01.hrz.tu-darmstadt.de

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/1.1 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
130.83.47.245

AAAA

1 record(s)
2001:41b8:83f:1604::47:245

CNAME

0 record(s)
—

Not configured

MX

3 record(s)
10 c2681.mx.srv.dfn.de.
10 a2681.mx.srv.dfn.de.
10 b2681.mx.srv.dfn.de.

TXT

6 record(s)
"v=spf1 include:_spf.tu-darmstadt.de ?all"
"google-site-verification=MhVJ4YhH6BFMk3VMQ_okf6dDKl64kAu05XQt9F__0qY"
"brevo-code:b06168a0ae0d70ff4bd469302deabf93"
"ZOOM_verify_9c8RCWNZTp2A1REBULIWUw"
"MS=3DB65728A46A4ECFAF5F4A714F39661E1CA144CE"
"sophos-domain-verification=58b09958937bb5c99066d94fff466d8f72c294549b004ea1f7fa35a3aa0785be"

NS

5 record(s)
ns1.man-da.de.
ns2.man-da.de.
ans1.net.hrz.tu-darmstadt.de.
ans3.net.hrz.tu-darmstadt.de.
ans2.net.hrz.tu-darmstadt.de.

SOA

1 record(s)
ans1.net.hrz.tu-darmstadt.de. hostmaster.net.hrz.tu-darmstadt.de. 1112608061 21600 3600 3600000 86400

CAA

0 record(s)
—

Not configured

DS

1 record(s)
61222 8 2 E844484B70316FBD0DDFBB2CA7F6BC5B58ACD3975C06DE64E604D509 03AA1A04

DNSKEY

3 record(s)
257 3 8 AwEAAaxRzhC6feVYwNagkAkrebSIO2p5sMeoow9kCX3Vwat+SXhuWToe 8pahIijzbAsFYWegXPAhEo33vt58o+yQav3YyWiHOKo/wlVQGiJ3aM+y L7v4LSnakrRbBV3rbTNqosu4ldpwsF2AYwD4C3BBdXO7B1VOYgQ9FJOt KIjM4l/MOuBceRSMQBYjJc/CKXbCmg8gtZMrXVw8RDWcWgqr2bM8MpVG /GTrfWPWiObm/O/83T4/6sVTAR8z5YGF4iIU2E6kXrsKV+P5CMUftbAv vyyt2EXBGiTzetmOd0ismnkGz24kWukHbIm1qMbXn1QHKa6YB+FsstYz 3GYSw6ZNXpU=
256 3 8 AwEAAeHPlDUEYlGrokUOtr0mg+LfAgM44Bfey+9gZO4fARM1qGxC0D65 PvXCfjtwzhW8A+X0cZjp3qo7CIaF7w/Ot2p6W/nDaozvYXpXoY9XWzKe GinRCMz1qpTvwZdsdyQrEErUrM2i5cUNZN3nRZG4sympTbulH6dTpCGV NWG1lr7j
256 3 8 AwEAAbc/sEUpdqiMmz54Y+2HPfCU0j58eOV2GcmRyrc9k8t9/WHpJcJ/ GiKVkJ3+axNyr81HJjait7tGQcnSgiwzxC5zGS0/2Vo9wozq2X5yvGqK pc/D5rJcxuSxuL+BrWs04UzZghaKaj3cwRpfem1S0e8oE3bqEKhFDFZT NHgMIEVl

RRSIG

5 record(s)
NS 8 2 86400 20260905210429 20260806210429 945 tu-darmstadt.de. ktUaFuqlUxhvgM4rhTxrLReGURxCpa3EiCQhZslFqpGCzIycKjbjp4HC r5QkmF7mNr3p8Cn4xUHMb2B9D/YmDzpJiYVofHuC44Od5+wouo7rlxpk 4IR7BcAXu89Dxb4W7cIwXHiWFqUVqBKhaVgwLV1mwHl/VA/R8DsfSrLA Fds=
TXT 8 2 86400 20260905210429 20260806210429 945 tu-darmstadt.de. Z1S0X6TgFimlXGr7mSmG5u7fTVrZocuBIQKxjMNrqfY6m2Fx1o3yR4P4 Fyolm7ATdRkl8WrmURe5zk0oXF0Ivs1mmEJrIEBx96O99rv3lKAl9c4p 3OEqOgABV/U7mV81af04nnFmY6IxdpVJh8kecdglVI4G0YYYYf+4P8b1 JnQ=
AAAA 8 2 86400 20260905210429 20260806210429 945 tu-darmstadt.de. Tz+68t/IbydO24fq51IqVGYz/Fd29kt/vtMmk2Y2+Hslr5FWi5QRKbh8 IjNoYQeookAPuiBXGxX3Rgex4Dtl9Oa75BmSp7V4ioMRHcO94WLDQV6h kDk8PHDlR/NlFayL7UjMfS9+CyoPoGU2N+8kyT3D9C/9nY62OZJ1Xawt d2k=
MX 8 2 86400 20260905210429 20260806210429 945 tu-darmstadt.de. m6nIqIOYoQTi/MSieFabD7yC2zb+MsF5QrWaTuIPJ2Wxk5FhPei59aPm vc7Sk1FKChF6Bjns5YbdRpjDur2X5GM9VNcFtl6Qz/CSGFhZZMYhpoY7 +3GCMPJeJIZOMJtgZpmW1bg8HT236582TuLuj5DdLG8jgimJNNFxYNOv SlA=
DS 8 2 86400 20260817120903 20260803103903 32911 de. jftoh9UaLy3k7EietRtq/h3wMYpCoApLyDG/GSkpy5+4fKavhH4OsrKG 5ULqsL6OmIfFKTTWKUqPvewW0HaAEcSAJqrb84LpzCRwy/umdyFD/2Ku k74lw+OnFkmsDa8F49lfQVKHGcviPLqkgRaqK2yNqcqNTqdBcjEjqEJx Efs=

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

4 record(s)
100 10 "S" "x-eduroam:radius.tls" "" _radsec._tcp.eduroam.de.
10 100 "S" "SIPS+D2T" "" _sips._tcp.tu-darmstadt.de.
12 100 "S" "SIP+D2T" "" _sip._tcp.tu-darmstadt.de.
14 100 "S" "SIP+D2U" "" _sip._udp.tu-darmstadt.de.

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 include:_spf.tu-darmstadt.de ?all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com,mailto:postmaster-dmarc@technicalservices.hrz.tu-darmstadt.de;

DKIM

Selector s1
v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDd62AJgzt30wnoFwHidOTBK2v0+xwVDD9BaEMBpRwzdq3lFYlLjqAq44C9XwIznr+LwsEo2wBKq0650URvSUEKKSXtafKYn/L/VWU5/zjKg1qf0Yxv2MNbOmhpg+FijCcnozE3obc+jS+emna8x/Oe/9FN+1sDIKL+p0W1bekV8QIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Home – TU Darmstadt
Description
Homepage der Technischen Universität Darmstadt, Universität in Hessen, Deutschland.
Final URL
https://www.tu-darmstadt.de/
HTTP status
200

HTTP

Status
HTTP/1.1 200
Final URL
https://www.tu-darmstadt.de/
Version
2
Server
Apache
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Hellenic Academic and Research Institutions CA
CN
tu-darmstadt.de
Valid from
2026-07-23T03:56:11-05:00
Valid until
2027-02-07T02:56:10-06:00
Days remaining
181
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

2 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
✓
X-Frame-OptionsImplemented
—
Referrer PolicyNot detected
—
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
130.83.47.245
158,00 ms
Cloudflare
1.1.1.1
130.83.47.245
125,65 ms
Quad9
9.9.9.9
130.83.47.245
139,48 ms
OpenDNS
208.67.222.222
130.83.47.245
215,50 ms
AdGuard
94.140.14.14
130.83.47.245
40,79 ms

IP, geolocation and ASNAssociated network information

130.83.47.245

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

c2681.mx.srv.dfn.de

Port 25: Closed/unreachable - 125.7 ms - 
Port 465: Closed/unreachable - 4017.1 ms - 
Port 587: Closed/unreachable - 4147.3 ms -

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