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67
Total
90
DNS
0
Email
77
Security
50
Network
100
Availability
Domaind-nb.info
IPv41
IPv60
MX records0
StatusActive
Domain technical report

Making sure you're not a bot!

d-nb.info

Generated: 2026-08-09T18:11:15-05:00 · Cached result

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IPv41
IPv60
MX0
NS3

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

3 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 policy5 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

!
MX records0 / 20 pts · Mail

0 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
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

179 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: prodche-03.dnb.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)
193.175.100.223

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

0 record(s)
—

Not configured

TXT

3 record(s)
"HARICA-bOB8ZAmnXhmHHubBDW4"
"google-site-verification=I_naZf-AGN98vZFEUhaT-fpzG-7onNZhIPT9N5Cy3dA"
"HARICA-b13pVgw4BbfaVdwAcGn"

NS

3 record(s)
dns.globvill.de.
ns0.dnb.de.
ns1.dnb.de.

SOA

1 record(s)
ns.dnb.de. hostmaster.dnb.de. 2026030356 86400 14400 2419200 3600

CAA

3 record(s)
0 issue "sectigo.com"
0 issue "pki.dfn.de"
0 issue "harica.gr"

DS

1 record(s)
35861 8 2 FBBDBCB6294D083229CFD982F1678545D8289D027B97F1AA86DDF88E BFCBE460

DNSKEY

2 record(s)
256 3 8 AwEAAb5MjkliQ1iKbqb64tHSlCJzJsML1kPqmIBHz9TXIdbrpYij+y1V Y/Ny1oEqs2wuHHYsl6xJmtVrv28i4LsH5fMS75doxzEKaoH29a1hUsuE klJg6j3+VLzJVf1oB+vs4kIPoljRzLeVyLpxLDqW3nkmpGB0DwBkVlNk ASRxnwVP
257 3 8 AwEAAcCyz10FSwLx+86AEQZ6RaTBBtcSNdZpqOMZFjq24GCD6y/gx2qF ocdyTv/D2deB3iBB3JfSKOd3Jzjk6FqboBpau0hbkezogjYnKmhWfQbc T73k6S3EhxS6vEPO2TANINiJhqOpPWGAdKw2mfKvW3EfDfViPKHpDa5V g5CBx1TJVs5CCi7g+73hMyIq2mvPwA/+iCg1RKcYaj0BJPG75X/MB3Wk FspouATlou9VUXkr8lsvnOBnUgqB5jmqtcuEcx7c+NNL+iH49OiP6+Iy /bZyWsHXTPOmCmS72/hagXDl3uy9heTsxVbbm2yPAAcBDk0EX5hYkeRi sGFbIeaN9js=

RRSIG

8 record(s)
DNSKEY 8 2 3600 20260829134710 20260730133117 35861 d-nb.info. IPhSGNn9Q7fdnS9K8uTahg5BrT2sKew8qQgudJjdG104HYwOf77gDygn bh7SZtyXiWKskK27+GLnABh+bWib9gJ70sBs1N1+rbRIY0bNq5WI5FSb 3mP2rxEd4F4VrnRp/OtTrFID6q8DPo4oqYuQBrWhZyoTPQ+dRLzyFj9X ER3E7thJUvFZ/d978c6n8DjKajll3TL3aKazfKsXZuw0/iT/QTnyN9eJ HsXArqUUIbS5f8Ngtv8rJsN4Yeoltc8E0my2zdw8aITnalarkGHPCbEh wBPjsc8pRwozJoaB9PtFeHPsn7pP+HjUnboAy/yRD7PenVAR0Xx6Ldx9 jp8RQw==
TXT 8 2 3600 20260826213501 20260727203607 7234 d-nb.info. XUhM9aE4JRWc0ictDgNwwD1CVtUwC5gV/kjzqsFm7+D6k44K5XT/3lQ+ poMslAs05YXalVVlIrH1bPUtAdvtX6qyQsgNf2xLpTrRQmNCT5yYYzrb MBmO3qxVDQYRse9cLXitGR0r2+zQmNr11uU9mUhQmoUBVwgbOp+HyECy xFs=
NS 8 2 3600 20260821174354 20260722172936 7234 d-nb.info. td4pq8oe//EK1wjuyRCNXFZa0OZ4OWD5dcBB+sSMC2rvezITad7xCzAS +sQcNW5+khxOTzjmuzeROCfSiN5mmoygWsNe94mi1xPGz5993Iu7cbnw i4MhjHZhmS17LQ2G+LJxHsIo6voW1E58jPdnBv6nQDQQYNoiCwJCR5Md olw=
SOA 8 2 3600 20260905054339 20260806044339 7234 d-nb.info. PNUREAgtfyEEwVXawzfeECe6yN1wphersDUX9oH4g5eOpq+JYFv/kqPz 45m5rQTYwh107v2KSQrc4I9el8nMJgCfy/lcvmUUtucA+ptVxVyHOv0S wPqwbuj/TQ4LIFepNsQRXpTV6sFynCq+igmfpDNqFiXDqMCeVu2mVvQ6 s8w=
A 8 2 3600 20260821174354 20260722172936 7234 d-nb.info. TB9Z4EcD+EvglNQIWA7zc+kqg9ZUG9BDBLxC7+Gix2YREK6mNqXS7BOU 2G34HkMLEWUryKf0T/kOv3t9LCzOd4U3EpKDvxrWWsNbJRhvfSBtMe0K PRYW0PTAMIS515qPxsem5rhU8HCTlLhEPYPKx0Q6dtTPQm4qQ4Qg6dfy 1X4=
DS 8 2 3600 20260830154211 20260809144211 35784 info. Gz2SCgZkzCBOW2JiBodcanC2L0yUyog9TZDaatkeqwMb3Vtw/prLC7tm dIY/jhzH1N08s4utNEDxo1RZTB0rwTQZU8uc4vFQHnPR9ZrPFx2FcXsh Oo4S8CIps8AoKMu4LmE1R7/kueOQzHt7Zd6TWu51Un4k5AFfH8FnnSZM qag=
CAA 8 2 3600 20260905045752 20260806044339 7234 d-nb.info. qTkLoBJKj+9RowMPENp9msbaLP1nT5jip/bdA1snHK0DnZBvHjyBuGbu EO6eGWxfhYC9VIhQKeRREN95Vak/+DLX0xKU1S8cCiYtpSmRsKtNFjm3 oTtHa3G7frYD1RUXIoOOAKYWB7aCWz1jKOLJF12hlNPKc/4k1a130mVt r84=
NSEC3PARAM 8 2 0 20260902024202 20260803021542 7234 d-nb.info. TbT89ubhxN/phSiYBZ1iGdePWEgeiLn4iQ7hPkI8QBzDCyFP8Gc0BPBW KK5FUfYyUsgj6tjChXHOfRkzkZ8JZMc+90HluD54zlPqbZIMBIskjCU7 lBlHu6oi4JgUBLudMRFO/xwaMRkIs5J2bf46b3BgnSU9ku8/TWW1wCLR r30=

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

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://portal.dnb.de/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://portal.dnb.de/index.htm
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
d-nb.info
Valid from
2026-07-21T06:09:26-05:00
Valid until
2027-02-05T05:09:25-06:00
Days remaining
179
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
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
193.175.100.223
41,07 ms
Cloudflare
1.1.1.1
193.175.100.223
22,04 ms
Quad9
9.9.9.9
193.175.100.223
26,60 ms
OpenDNS
208.67.222.222
193.175.100.223
244,36 ms
AdGuard
94.140.14.14
193.175.100.223
50,39 ms

IP, geolocation and ASNAssociated network information

193.175.100.223

Identified
success
Yes
country
Germany
country_code
DE
region
Saxony
city
Leipzig
latitude
51.3396246
longitude
12.3712868
asn
680
organization
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
isp
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
timezone
Europe/Berlin

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

d-nb.info

Port 25: Closed/unreachable - 110.5 ms - 
Port 465: Closed/unreachable - 4021 ms - 
Port 587: Closed/unreachable - 4021 ms -

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