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78
Total
85
DNS
90
Email
69
Security
100
Network
60
Availability
Domaindnb.nl
IPv42
IPv62
MX records2
StatusActive
Domain technical report

De Nederlandsche Bank – de centrale bank van Nederland

dnb.nl

DNB zet zich in voor een stabiel financieel stelsel: stabiele prijzen, solide financiële instellingen en een goed werkend betalingsverkeer. Lees meer.

Generated: 2026-08-10T17:28:52-05:00 · Cached result

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IPv42
IPv62
MX2
NS6

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

2 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

6 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 propagation0 / 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.

✓
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

49 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: a23-205-89-156.deploy.static.akamaitechnologies.com

✓
IPv4 diversity35 / 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 response0 / 40 pts · Availability

HTTP/2 403

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)
23.205.89.156
23.205.89.176

AAAA

2 record(s)
2600:1407:7400:14::17d7:bef
2600:1407:7400:14::17d7:bea

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
50 mail.dnb.nl.
75 mail2.dnb.nl.

TXT

23 record(s)
"msfpkey=7e4nuvgtvvd34spqfxtqqskmi"
"_ttvq9w44uowz1n46yrz0wxnw0wo29lk"
"MS685699"
"ms-domain-verification=9a77a844-b0d0-4613-af27-4cfb165c0cd5"
"v=spf1 a mx include:spf.dnb.nl include:spf.protection.outlook.com -all"
"MS554195"
"MS647397"
"MS064338"
"pexip-portal-domain-verification=a11ca7dc-f9f6-4cea-8b3c-b982d1d60f6d"
"MS=86224684AD25A85FAD816FDD3DA526EDA6C3ED4D"
"d365mktkey=1z0cu85pkpks4945vrkx478gr"
"QuoVadis=2ed23301-019a-40e9-8551-049ab5d7f3c3"
"dnb.nl"
"ms-domain-verification=6dac95af-e66b-41a4-adc1-296367854afa"
"ms-domain-verification=db150717-5527-407a-b0b9-c4950a300e80"
"QuoVadis=9f863345-ae71-44c7-ac8c-267bf3b18296"
"MS959411"
"cisco-ci-domain-verification=7f52ea608a43b2a3dd5999d08007e87b6d180f9ac64b8485fcce73d10c0b9b55"
"_lwps7vshslht0klijhrtju79c5q8g5z"
"pexip-ms-tenant-domain-verification=a11ca7dc-f9f6-4cea-8b3c-b982d1d60f6d"
"ms-domain-verification=0568291c-207e-4752-941a-6042d3b50b18"
"_we89kw1f1fm8roxw99yda24u96tqgsv"
"google-site-verification=M-Zk5khhfhQCckKAowkRe6LAKMikqhGzDjJQgnNqXTE"

NS

6 record(s)
a5-64.akam.net.
a18-66.akam.net.
a3-67.akam.net.
a24-67.akam.net.
a1-13.akam.net.
a26-64.akam.net.

SOA

1 record(s)
a26-64.akam.net. postmaster.dnb.nl. 576 43200 7200 604800 7200

CAA

0 record(s)
—

Not configured

DS

1 record(s)
31 14 2 B469A73F155CC7E51FAAE57E232626AC094859C65C29469DF4EA5509 A2071E4B

DNSKEY

3 record(s)
256 3 14 /0R+/UxHM7teY86Jh8Fh4R1fBODIiajpkE0UmkSsZiPJlB4S3KFEXvEM K0XdVIHmxKqXlxaSWV0xKW8GBZzUQZWfhXDwYOWah4oNquYdDPyUoD0q cTVwi0gsz8tjasmN
257 3 14 u2BWDsmIN68b/xdyxk0JDm+XBy1Wp5TOpEhL8qEyuBqDbqWURr+28giu P8jE6c7ev3hsZiTN743UUeFtnlZ5UOnlCFxlGAReu8x/RHaCv8AfpsSQ bqGd7/qxo23VWPj2
256 3 14 OHFUEI4lS/xZEWLEjuKQOkYidknQjsLPu3hFOeFYy9NVrrXnrhNhvKHb AEOe5duTgPfR6kbHKoQpXgDQYvayREXG8PInBKO75Nv4b+ul08JvneCL dZ7NdDtwOcIEs9SD

RRSIG

7 record(s)
SOA 14 2 7200 20260813124312 20260810114312 14487 dnb.nl. VYiOYLh8tq/DMBkC2whrk67qcp1D8prnSGwAsVq4ktvPw5K87W7BgOLd HwwUrPqV+Kw2e5A6XWmdJdg82PtD1wE5lx+qkLIOsF5QWp25sp9IrsQU 0JLf23b3EIlczM5s
AAAA 14 2 20 20260813124312 20260810114312 14487 dnb.nl. K791xivRDjEicnQzrlvvkT0SrR5sxlwySq9hYDfl0NpSCvZG7jaOjRfs F3uTReKwgQrhvQ1ULme9GDdlj5DUaEUmHFyZ2fKB1J9FB4lpvQY1HE1w /9/ud8TagAIki28Q
A 14 2 20 20260813124312 20260810114312 14487 dnb.nl. KszRU/6QotUJ5CFfFY98yIv2590yMi8SUyEgy11X4CYrbGzqHF6a9B8M WUZOX55kMcbsCOtZBLrDlW2PPNC0BndUnvo+21Vuo2DFXveR4V4Px3g3 ClLggPBgoW773clS
DS 13 2 3600 20260906233701 20260810010821 467 nl. tEmPtK2zQ5ZDK93gkGZ0r8WGaE8VyWgrFIvqwcounHF8gHcyeVoCpnFU Toju1IPQCkKJqeM8HLFeB6Z4+G+Opg==
DNSKEY 14 2 7200 20260813124312 20260810114312 31 dnb.nl. cxZNkTMCcuESLdbEvKlIF5T+zicfNoGMx6z16WQYmDsEAvIU8e9XTbEo DFxDQWLzBpIfEhOemilLKWRvukIe0qBddCsEIVTLAnLFt04I3apAQZSJ 2dgxAhh4w0WHIuTP
NS 14 2 86400 20260813124312 20260810114312 14487 dnb.nl. KdRpcoYvfgaA1nCc9hgTvXOkVhmSiPiJdyF8PD49dDa3O1MX680khRhL G0zfMht0i+Q1fURwNBs5DCarPgHKdBLsJ8dwqA2su49QV3mDh6xer6H8 VLGCrhhMd00iAfND
TXT 14 2 7200 20260813124312 20260810114312 14487 dnb.nl. VxUVPrTeR8DM9J5T55r0o73v4UywtXyOUZ6/pb+VuycGGLYD/cU+Qrzd TXBLtLA9h5tz1kkoNKmOQ8sGP/nDG821Fj1aURgGzxRue1cPJS0PByQQ t9s/u8cofzxE7cSI

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

Configured
v=spf1 a mx include:spf.dnb.nl include:spf.protection.outlook.com -all

DMARC

Configured
v=DMARC1; p=quarantine; rua=mailto:dmarc@dnb.nl; ruf=mailto:dmarc@dnb.nl; fo=1; pct=100

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwn4fewQxDt4By4GZkiomwK8/gQQpcgKWwzLLrTGHobT7l0tPatu6K+xJy4HxRKft/QkEaARv1g7AlRfWyb64+50Mk0eAH6r34FE6JUyv4JeYqJ5HPwOhG5vLqEf37pYF8qFWxtVj8MwSRb5VF1gIxvYy202aJtWMJZgLNzx7FB1N+Ehij+PVmUNaH4YyMFQDY5ofdzpmVXidOLTaHM+tM4Rz+s6xcF02Cw65hbWZNZ7gv1Ba/WTcTjcBwa9jyetB0rtg6P/6nMQnC8bDa0c6IlTp1j3om24me9GuoabSn61XBJutqAMXanmTBkGfqYRD6BCpnIXU2T6VWmcFSEsOWQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
De Nederlandsche Bank – de centrale bank van Nederland
Description
DNB zet zich in voor een stabiel financieel stelsel: stabiele prijzen, solide financiële instellingen en een goed werkend betalingsverkeer. Lees meer.
Final URL
https://www.dnb.nl/
HTTP status
206

HTTP

Status
HTTP/2 403
Final URL
https://www.dnb.nl/
Version
3
Server
AkamaiGHost
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
www.dnb.nl
Valid from
2025-09-11T19:00:00-05:00
Valid until
2026-09-28T18:59:59-05:00
Days remaining
49
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

Review
!
Differences detected

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
23.205.89.156, 23.205.89.176
89,31 ms
Cloudflare
1.1.1.1
23.215.11.234, 23.215.11.239
50,40 ms
Quad9
9.9.9.9
23.221.22.140, 23.221.22.52, 23.221.22.58, 23.47.51.145
69,25 ms
OpenDNS
208.67.222.222
23.205.89.156, 23.205.89.176
185,55 ms
AdGuard
94.140.14.14
23.48.224.197, 23.48.224.204
85,89 ms

IP, geolocation and ASNAssociated network information

23.205.89.156

No data
success
No
country
region
city
asn
organization
isp

23.205.89.176

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

mail.dnb.nl

Port 25: Closed/unreachable - 10.1 ms - 
Port 465: Closed/unreachable - 4025.5 ms - 
Port 587: Closed/unreachable - 4029.8 ms -

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