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74
Total
70
DNS
70
Email
69
Security
50
Network
100
Availability
Domainhu-berlin.de
IPv41
IPv60
MX records2
StatusActive
Domain technical report

Making sure you're not a bot!

hu-berlin.de

Generated: 2026-08-09T00:03:45-05:00 · Cached result

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IPv41
IPv60
MX2
NS5

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 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

2 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-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 headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: typo-prod.cms.hu-berlin.de

i
IPv4 diversity20 / 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

1 record(s)
141.20.4.180

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
100 ir2.cms.hu-berlin.de.
100 ir1.cms.hu-berlin.de.

TXT

6 record(s)
"HARICA-D11HHWDWARmhgYlTsSt"
"HARICA-LxmP07no7bekBWahpMv"
"HARICA-uJcB3Qsl5sonT8rQKtR"
"adobe-idp-site-verification=50fe2a3f158cf92d09462c79d21f399af9e33adcc0f9eb1f855a39d4408aa72a"
"v=spf1 redirect=_spf.hu-berlin.de"
"HARICA-U9FCfuSvjSP90Fbb3nO"

NS

5 record(s)
hpcom.rz.hu-berlin.de.
ns.tu-berlin.de.
dns-3.dfn.de.
buffy.cms.hu-berlin.de.
suncom.rz.hu-berlin.de.

SOA

1 record(s)
hpcom.rz.hu-berlin.de. dstoye.cms.hu-berlin.de. 2019095307 21600 1800 604800 300

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

1 record(s)
100 10 "s" "x-eduroam:radius.tls" "" _radsec._tcp.eduroam.de.

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 redirect=_spf.hu-berlin.de

DMARC

Configured
v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; pct=100; rua=mailto:dmarc-reports@hu-berlin.de;

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Making sure you're not a bot!
Description
Final URL
https://www.hu-berlin.de/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://www.hu-berlin.de/
Version
3
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
hu-berlin.de
Valid from
2026-07-22T11:13:31-05:00
Valid until
2027-02-06T10:13:30-06:00
Days remaining
181
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

1 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
—
X-Frame-OptionsNot detected
—
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
141.20.4.180
203,66 ms
Cloudflare
1.1.1.1
141.20.4.180
135,94 ms
Quad9
9.9.9.9
141.20.4.180
185,23 ms
OpenDNS
208.67.222.222
141.20.4.180
236,65 ms
AdGuard
94.140.14.14
141.20.4.180
237,30 ms

IP, geolocation and ASNAssociated network information

141.20.4.180

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

ir2.cms.hu-berlin.de

Port 25: Closed/unreachable - 115.7 ms - 
Port 465: Closed/unreachable - 115 ms - 
Port 587: Closed/unreachable - 4017.9 ms -

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