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88
Total
90
DNS
90
Email
88
Security
50
Network
100
Availability
Domainru.nl
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Radboud Universiteit

ru.nl

De Radboud Universiteit draagt bij aan een gezonde, vrije wereld met gelijke kansen voor iedereen en is zowel regionaal als internationaal van betekenis.

Generated: 2026-08-09T04:09:16-05:00 · Cached result

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IPv41
IPv60
MX1
NS4

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

4 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 records20 / 20 pts · Mail

1 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

177 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers23 / 35 pts · Security

6 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: radboudreflects.nl

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)
131.174.78.60

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
0 ru-nl.m-v1.mx.microsoft.

TXT

17 record(s)
"atlassian-domain-verification=Qoi8aah4vKhyujDNzCPaIovYK0aQ13lVo2lQVp2BbKDwt9uX2FG9a0/2kR06nLs/"
"00D0O000000qnzJ=1TBJy00000009xl"
"cisco-ci-domain-verification=5b6d3b9b6b8ec2592d13429c415ed26778e6ca8c6bd9078511ac037b1353b81d"
"ZOOM_verify_uP1aZu8wR2-CHSmrBtCvTg"
"MS=30C0AFAD43C669095DF6BA98606BBA3CBF203C4F"
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
"d365mktkey=jvxUlCXg0oosqxeR9Ct52M4gPCYzFVmzElxRwUzwzGAx"
"d365mktkey=FffCw4fp3A1ZHCdERpWcTyjFUJtJ4S57qLebUFAdMDMx"
"sending_domain469931=a1cec05a37422f86eaac35edb52100b0346e866f27474a07f7ca867b78e55e14"
"atlassian-domain-verification=5Cn5OZRbvE8o2BFCTuh1h3OsI7fIlbITmxCM3bT7JLc/BRQ1i7cxYJQM5gRXdhGZ"
"knowbe4-site-verification=a38acc02e555fc59878a885c661e36ef"
"paloaltonetworks-site-verification=93590266bb125bbf65c9c8fcf694442a4955a6a5b07094d6ee03d0ec4d7bff67"
"HARICA-Vw9MiLhSzhis4oNuw1a"
"d365mktkey=XGnAIxRQCCLkJPJ86uCVFTnDUwSn2ndbxRAo6ySSwpUx"
"MS=ms78416191"
"Radboud University Nijmegen, The Netherlands"
"d365mktkey=dmCT8FfyOHyV4UsEqKIK7P99XxO932fLXlanuRklhMkx"

NS

4 record(s)
ns4.ru.nl.
ns3.ru.nl.
ns1.zurich.surf.net.
ns1.surfnet.nl.

SOA

1 record(s)
ns3.ru.nl. netmaster.ru.nl. 2009554526 3600 360 604800 86400

CAA

3 record(s)
0 issue "amazon.com"
0 issue "letsencrypt.org"
0 issue "harica.gr"

DS

2 record(s)
45436 8 2 E7DADE1959C1FBDC8AFFAFBE07B773D9B57368FDE05DB61FBAAA70BB CCAD30BA
28744 8 2 CFBC56B85080E62239B47204CE52D62A8B2BC82ECCC5CBEC0744CF0C 4989EE7B

DNSKEY

3 record(s)
256 3 8 AwEAAdcGXgXfqRab7lN/JOlYOXAeoojaCYyHqL75L7cVyrxhANB6wSIp xnbgLCfrPfJt+DGOJwevXTKZw0LGOVcXEYJ8Jj7QtpoumW3bwTraBPLK pBdiHWtY2VhXvLQJ+qs0adXpuqToPruBureyFyZ0bwUUJMWMINdZ2qBJ uVoWC3o/
256 3 8 AwEAAdB1dqRxFN8jrANMT4VlsMMiKE/IDGMUkKtvxWs9tIgTjRzPlF5+ t/G223CoOk5gk3A6d0GQBSTgYMQ21/jwiB5SqgMohtutG2OP/fxqlWFX BTUidOdZimXLA9MwnGjwdHQbWToirb2M+P+1Oo60eHnG9TAU6KUe/tSZ 4GipFrln
257 3 8 AwEAAbRuArckQYV1ew30HU8e2ybL3bl/eipr0zCIAtcX3P7/+7wJNJEY FIbIxriZ8eJlutYA1T54iEsdRn0FduhxlvRn87X/CqKqhFb9acXn4qBk dS5d7o5eI0FCWjqZD2IfsliZUpFV986up5x88SnZRhoHqQbDMA0wQQKs mjbrAITq/NbHQEBgyJfY1Z6tzlIXlexOuqElPu0SmMADT9OCEsbhvN43 GL+Dzz03O50Q5+NSRde51LPj7xKAfceAy1AbfBVB2jZOsYAkqI4XQpzQ bJBEBxjyfgHHTHd0B3VKBAc+OtRZ8fuEtA3YaMW9n/7ECcBZk9cLjtNd 8uFlGiNWH/8=

RRSIG

9 record(s)
SOA 8 2 28800 20260813090755 20260809080755 30168 ru.nl. XDCJWhU2ZQfv9Rf7yoU6oOB92MnOlzQP+PXy0sUc2CZXVyRvx1Goqovh Ra9og8DYsPCOi3Oi/wPPpAGPdmCFrV+4hK6Lqz6jl0h4aGxaCDEdt7x+ rtRhWlMZlX2fle0q+IXM4CHaRG3d07ewINjBww42S4svrJb8JdBgOszh +r8=
SOA 8 2 28800 20260813090755 20260809080755 38844 ru.nl. W6hfrv9et/gvYS1URbaFpTm2JbQW4aBMyAPwS264QPNQxRBNhVx1XpQa WTFLghrYxJN2eMxMS3PmLv5xVLPXJsVTLuHFSx50Wz1PndiECC37Ngtb n7xtJZZxTiPDqIqdhf41KYhnGOAv5CpHINWSs8KYb8DKVju2LcS/zr26 9oo=
TXT 8 2 300 20260812093149 20260808091151 30168 ru.nl. J4BWofz6TjNW1k0agHwQz1RBI+nvjr/pGbh0aJNYkMSQ6ewci1APahMf /j9ATssdjNQZ4jjhCvH/636zSiXBAhy67YtPsU9PG52mvERvhjWmvyji fgKizSf30+uWtpwNliBr1+cnQhgeRgStvR+LTqbnNCfDAZJ+NOql7qTA JmI=
TXT 8 2 300 20260812093149 20260808091151 38844 ru.nl. yw+22r5yS9SrqXGFhK39vYkPRKTS5EQ0E2gOxEJxiRjpmlNmNl3FV3bR r+qGAOouLQXb6iMmKaD/Mrds/h659InwdH5nx1nz3+rPA0GC42qZ6UnB TbJHI8VfG5XzkIkHZ7PMmPfE3onocRqcVKbe14H1+QU1uhGglXLxGLVo LTc=
A 8 2 600 20260813043030 20260809035107 30168 ru.nl. rlzKKva87gG60DWuUhIJoY4iDIbJdmL3LZMtooguqjEHOAwekTzLTbM/ r6ljDJhjffbSjDVh4YQnzn4OvY2XEZN+MrmiQRlxY03mwDuu9HsX9vpl PStoDhdNyub0ZLIf0SFD6uWICk5yEFXBXcPtvbHxonXbmqd8sjdFsD7Q zvs=
A 8 2 600 20260813043030 20260809035107 38844 ru.nl. axJWWUhFivrkcy5FZSAT4a6QGGZRczrUOeSmW++TtW0r05wR+bJQ7lO/ zcFJfxRKUHDBJ79iex3AqwT4rmLTTRFPRyw438Wmj3+cNrXOdN58wy5n q8pj7vOSXKx/0JjVQ4jfBZMe5Ipz8tdE+cSOANgBphnM1Q2QiW3QQPS6 wkM=
DS 13 2 3600 20260903033034 20260806063721 467 nl. +/OTdr5YPfRJAWZbZ7ySugrc0/CX/m5nA+eXPJcihIJueSLNLSEy094S SRgCyIAUH1ToHOqoAsuM1c1EfBZulQ==
CAA 8 2 28800 20260812215924 20260808213329 30168 ru.nl. Y9cV9M5SsjIw0qaLH/EjJCVfuE3SdOyl7koZs72qdboIsPv2eAaDHkVr kxWrnpPMKpad4ltIXwD4QOHAA4tATRXkpqD+fd38tm80a6q1aeJeLQDI LY/JgnPyxg0Q5dL05QT5alZFdUgZKKmdbv1UadM20QADT4SI5ZDor3nI EFg=
CAA 8 2 28800 20260812215924 20260808213329 38844 ru.nl. F5uQ3vMM/2/vJ455/tIa0Q4XqFx9nrAhcS+JDLTg7cfx4rrlzFRd677X for3+EHUEmob8mocBJvT4MDwwtI/lxbeREW4uRUF+gm7e4b9rvBo55IJ hk9X0HUOdnTANiKzHBQ9dg+sXtsK9lZ+2jPUvmSe71ifLYEgurHVNdmF 4XU=

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 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

DMARC

Configured
v=DMARC1;p=reject;pct=100;adkim=r;aspf=r;fo=1;rua=mailto:dmarc_agg@vali.email

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDBQ0tf41AnYwqY7a3yjHGxwR5ogQzfOSIzfiz7Z7zkSKu46fEmjBnL748W25y1F6+7we+W5aD3nF2oM674FxmXFTR6RKJItcKE1f1oKnbB3hRLlbyoetPyaWHRuw0yXD6QYgIy8K/p30O+SRAxJUQcHQPXfmDN2LKhx/dXY52bVwIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Radboud Universiteit
Description
De Radboud Universiteit draagt bij aan een gezonde, vrije wereld met gelijke kansen voor iedereen en is zowel regionaal als internationaal van betekenis.
Final URL
https://www.ru.nl/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.ru.nl/
Version
3
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Hellenic Academic and Research Institutions CA
CN
wwwproxy.ru.nl
Valid from
2026-02-02T09:07:36-06:00
Valid until
2027-02-02T09:07:36-06:00
Days remaining
177
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

6 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
—
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
131.174.78.60
168,71 ms
Cloudflare
1.1.1.1
131.174.78.60
261,13 ms
Quad9
9.9.9.9
131.174.78.60
159,82 ms
OpenDNS
208.67.222.222
131.174.78.60
149,27 ms
AdGuard
94.140.14.14
131.174.78.60
250,57 ms

IP, geolocation and ASNAssociated network information

131.174.78.60

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

ru-nl.m-v1.mx.microsoft

Port 25: Closed/unreachable - 19.2 ms - 
Port 465: Closed/unreachable - 4040.1 ms - 
Port 587: Closed/unreachable - 4020 ms -

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