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Total

DNS

Email

Security

Network

100

Availability

Domainuva.nl

IPv42

IPv60

MX records1

StatusActive

Domain technical report

Universiteit van Amsterdam

uva.nl

Universiteit van Amsterdam

Generated: 2026-08-08T22:12:06-05:00 · Cached result

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IPv42

IPv60

MX1

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 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

179 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: ae5e76baee563d191.awsglobalaccelerator.com

✓

IPv4 diversity35 / 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

2 record(s)

52.223.0.124
76.223.53.36

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

10 uva-nl.t-v1.mx.microsoft.

TXT

15 record(s)

"brevo-code:827311f17475d789ad60ba0974d0be19"
"atlassian-domain-verification=fgCYupj4jgwsJq920dddvuWFDvBa7KVzk4tXTPKHJbIll1QwsoYgweQ1b/oThwPa"
"fJ9bgKZY7Dqugd6Tbm3M3JUMYK7j3kUQWKDPw14ZIkF0E3y/EFW3y8p1qOezGdxiQxHsxsOA7xlD94eNZNkVEQ=="
"MS=ms30720995"
"google-site-verification=gzDIq68FRHfFkpkqxOR7eopF9yxPHV3llfbezSftDTk"
"mandrill_verify.tFm0qNQ4tJ-5tYI_iaBDnA"
"HARICA-iRdvnXUvsCenHVtW35t"
"k5fwoEFArB0YP9tJBXHjfg+vHi0TBfdkL0F/lNNaMIE1HbNFmGeZAoLhjo0giV3oWbtun4LEmvhqh4g+qs9KTw=="
"mandrill_verify.3B_nbZvNtDJKVeqvNhSmEA"
"google-site-verification=XNCiP7FIhnVSl1bdy_mnhyXTkKrwx4RZvoSE398N16Y"
"ZOOM_verify_5SDyNZLJSPWYTWoGkjFXog"
"google-site-verification=fx8Mt-sj-00QqB-cI_bRwu3odAnEdgU0ExBF-sg281U"
"v=spf1 ip4:145.18.56.76/31 ip4:13.74.56.125 ip4:87.195.18.70 ip4:94.228.137.42 ip4:35.214.213.218 ip4:35.214.212.238 ip4:35.214.208.81 ip4:35.214.183.81 ip4:195.225.23.99 ip4:148.139.0.2 ip4:185.63.155.10 " "ip4:148.139.1.2 ip4:192.254.121.79 ip4:45.153.84.139 include:spf.protection.outlook.com include:spf-eu.exlibrisgroup.com include:spf.planoncloud.com include:_spf.mediasite.com ip4:145.18.90.10 -all"
"amazonses:CyLXggQPAImSKm+6w68od2EhK8JNG4UseLcnwVy/6Rg="
"bjhgZnR4NeBHRjg5zqc39zKt+iyoiYs5dv6G3GipT9hqK/q0ZjPjfZhOV+GR2gbLBrtKYTcmwpc4fZjVkaOx0A=="

NS

4 record(s)

ns1.zurich.surf.net.
ns2.uha.nl.
ns1.uha.nl.
ns3.surfnet.nl.

SOA

1 record(s)

gm.net.uha.nl. hostmaster.uva.nl. 2020434149 3600 360 604800 900

CAA

4 record(s)

0 issuewild ";"
0 issue "sectigo.com"
0 issue "harica.gr"
0 iodef "mailto:scs-ra@uva.nl"

DS

1 record(s)

64654 8 2 FFEE7CF8ED4079A57596F736C1995B61FCEE77529CDEA101F23EDA4F EC02D42B

DNSKEY

4 record(s)

257 3 8 AwEAAas0Hmg1VtkZco42wmfoF5PCpASh+56xH5Zo9lDn7X2QqHobKmD6 f90X94gSv5fkKns9XzrcHE+SK+JNxSoAmjQ29AoZmcEWSqotZ4GdJkL+ JzYG6qGCILt+UIcNyL1aSIbxHfupSiteqqEkzLzWKnoqGA+wgwIS2ZkJ tEAm2VYcBMtOHwbqEIvhLyPM4XfT3gaGHka1nwMJilp8mCo2cuBEAzD0 BNjDZl5m7iGzhCaMGMTURfCyDMCt1WotpzybcYgpBHvo0XezyKzGKKpE 69Ksph14oc3A/KoKl6E5hiMIYiwT0TAkOICO9KqAV6AW6P9KCJuF4pIa N1JXDvndQRE=
256 3 8 AwEAAcUXqH8/fiskyKJhSo+zgWOFKyp1H37bh4nWfkmiWdoVjsZdsEcq PbR7GZQFYN9E9l6F0gImpkBIqC+ZD7s63OGmuRJDKCF34wGgnIddbkfI kdZHZjzF6D9zV3qQzD4Iq4WmdZ/DS4myjjc7cmZ3Usoh+U36oqRZCaAs nkTGj3fR
256 3 8 AwEAAcrKcjRfdraMp+vBZt4sYcYQWRzLV68/Uj5plt3qma8bKSadDB5j 0loS+SgP1YoA5Ah9hx7oXXHxDEzshMirhvYZuB9UfRNSYH1CGS4HvJ4m iwznoAKMoMn4Y3HQimjASrkkatSn69ZC5fwa9bboOm1WNQz8p1DM1xJI 8v1V5z4v
256 3 8 AwEAAboGDr33gv/yESL/yNKcu4UblSd8rk8PFSIv1L5Ga2gZEK7/9b9f 5C956YTnHb6POJ94TbyQ5IQTvCjg2rLMTuXQdHWR7dpgZi4H4GsIpupK D8XnV25D80COTKHfLkhrveqbkcrgymKAOPJAIbuf3rZK9IScNfUHFlgJ mvXt/aEp

RRSIG

11 record(s)

DNSKEY 8 2 172800 20260812122527 20260808121521 10101 uva.nl. twrI8GKFaADgQAvkfrcgC21qwAkRSy8JnRp+RJyCeIo/JbVWGglStPQX Lt1Q7HYIUT7pXAn+RpLSq5oJBuXn4ge0Uz05GAlMwAvjpLikQF8w2Lav F/yVEOH1NkC/G2H+VNNxNFGkkgL4bLanV/OYhkaqZOvodKDTYtfItc+j xGE=
DNSKEY 8 2 172800 20260812122527 20260808121521 64654 uva.nl. eKtg9pulJMNrDC/cqbKrnzSAlzHAQhzl2+kOx+nW39wiYL0ESKdGKBRT aKG2NibBXuy0Szs+8BTjPbFdNu+KzStmNIiPfCtRB4sHOLwk5p+K25WK 5BsNrup1+qj6DBddDxev7Z7xpW8W7bqPGI24Fgt2EP1B2IKJGaXQwIuJ V/zrlL4nDHSRv6EtYaPH4Q4vsVf6TDn87JhmD8BhIHD7ZxemDGwwYer3 7rYpXVbt12MzVhkY980ffE2aUrGmPO4CTj1bI+1FIw4zmdsLmND38/GW OqmO272drq8tTgM4D8I2pOOICStnNyxqz0CBt6PW15QWVkNPhhhOyjYI 1wF2GA==
NS 8 2 3600 20260812113716 20260808112838 10101 uva.nl. LDB6YSIcr9iaF7zfvNloHJPKwg6NXncfymB+TxFNggl6gBKiamtqbaWI s6a9LugngFidK8fwNT44tR9PuqrzrT2w+r889aG0Tvtc72XpUtbVbJSi yTq6hmZXPa3As9vQ5aKGEpvhuQkDwt6Af90Hv9rFWhXzq+3oxUAcUlNX 8cg=
A 8 2 3600 20260812121227 20260808112754 10101 uva.nl. djQbin9q/G7U0s4aC0VdqE1XydrmWlto/kL28qyaMNCe+3JQvSqxvoUc PT/rPrX9RGNPlFPnw64tRBRynSa6wmdKcy31ZPPtnoX5LAs57m+m/Nsa OeJdgyfSXL7re5IZoN4Zw/6SpUKi51HlskdqxH7KV79bE2lWsDjPulzC vN0=
TXT 8 2 600 20260812121227 20260808112754 10101 uva.nl. cMYyv2Yoxu9Nw5ugQ//t9vG7qqKDpjIDLl/qELUBQd2CnUCBVwY+UrIT 13YSiq7JWwRlo+c3/rx3YLdGs/I1NOhd807SRKNxt1/m8Kh3y9D3HbhZ OiWS7GJg/DqKlgBgDryJ3/c/SqRfnfmlrMAyQn+YoBBOtt/5Vleve8FE Of8=
NAPTR 8 2 3600 20260812131727 20260808125105 10101 uva.nl. fTtViDxv3bw4IM46G4OBYBHJbhrWh+1Mkd5tkla5gNBGfAQfEcUkTIsG 7RSXEoiJyeT+DhLyTqgf4JxECxrkWUP/zuh8AY4f0OhOP6uZNRh4z97N w4cfk9I1G57UmECSYxl/hUf3sMMC+I3E3kNbLB7YtxfJn8DlJaoigp2o ttQ=
SOA 8 2 3600 20260812152418 20260808142418 10101 uva.nl. EayXWNuj+fSnliXpSfOfEzAt9GpoRnNcLPBEzt8+6KOpO0fbrBciEQMW 5VP3aNySAaUjG3EQESGQ3GI1NkUqZwKPOig5mcT0iP4H7MxLfcaqxika 5ejz6ri7wPCllGNcGhtmCRb9Ds0pUC176M/iuUhw1C0rIElCtNLOrh3E XY4=
MX 8 2 3600 20260812130818 20260808122126 10101 uva.nl. Uy0kaikfiU5fUIklvePpWZJFIpH0KAH0uiSV2/BliwS6wpiLtsj8KdR0 xhRnHGT215MhYqVug0Sg2Q0Ij10pcd4hv6RwO1+1ZnZdyHpmyIWkXkdL tK3KUQ8f7rZuFPWwMytCXB8lYLOFRFwpvzmtrXF0gCwlaDtfzsxAgPvw m78=
DS 13 2 3600 20260902183419 20260805083723 467 nl. MmUAXrnG5XSM+hXcU2HgUnkpwkFPjOvIetwGIa4+wcCzBEEyDU7r71pB BCSl0Qqeu+qlVdzzUCVcMIeUGNXviw==
NSEC3PARAM 8 2 900 20260812121326 20260808114908 10101 uva.nl. g+TUCGnV6U9htEM3PPsmydesievpPLoc8mfxUOHggjBw5UuVod/Lc2+0 VI2Vylw90usagN1w5YGpBpC1kCgNDpcSdna8BXfP8VB2BN83WBXXnVS+ BT3g0+m43S3mJ4YLh0OnUFLzBARz7e25tYx24fY8UYkt4elFdsObfIiJ O0I=
CAA 8 2 3600 20260812121227 20260808112754 10101 uva.nl. HeCDZ+2TakmtEPRfYAyKdP2/G6DYzNGzIMtzq87oIabi0CFC+d5D701p Uq3+22uBo3SkO0vd+4DNly1MvbMXYpll55pMmB8I/WRVfUqNoXMKtujh 27cUjVrawOhlWKQGjKXVAGxAF7AJMP/pUShet5rp0Ppu6TlvvlA1qs/q Qro=

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

2 record(s)

50 50 "s" "aaa+auth:radius.tls.tcp" "" _radsec._tcp.openroaming.eduroam.org.
50 50 "s" "x-eduroam:radius.tls" "" _radsec._tcp.surfnet.eduroam.nl.

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 ip4:145.18.56.76/31 ip4:13.74.56.125 ip4:87.195.18.70 ip4:94.228.137.42 ip4:35.214.213.218 ip4:35.214.212.238 ip4:35.214.208.81 ip4:35.214.183.81 ip4:195.225.23.99 ip4:148.139.0.2 ip4:185.63.155.10 ip4:148.139.1.2 ip4:192.254.121.79 ip4:45.153.84.139 include:spf.protection.outlook.com include:spf-eu.exlibrisgroup.com include:spf.planoncloud.com include:_spf.mediasite.com ip4:145.18.90.10 -all

DMARC

Configured

v=DMARC1; p=reject; pct=100; rua=mailto:dmarcreports@uva.nl

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCuBhok9lvRrxgKrc958n3m1GvqHhZ7b6fVVRZJxeUJNwmLwQXHtaSYv6WjUUJA1Yg+cZYNEDbjb3ybAPrnUQmN98ihFmRFyPmlA3ds1fhySoRiRPVghk5WpeF506kCyAW+EWaSG/PhfuWoA5AsdPQYuV8nA46xOxVa5DJ0LQbsYwIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Universiteit van Amsterdam

Description

Universiteit van Amsterdam

Final URL

https://www.uva.nl/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.uva.nl/

Version

Server

Apache

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Sectigo Limited

www.uva.nl

Valid from

2026-07-20T19:00:00-05:00

Valid until

2027-02-04T17:59:59-06:00

Days remaining

179

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

5 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

✓

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

52.223.0.124, 76.223.53.36

142,09 ms

Cloudflare

1.1.1.1

52.223.0.124, 76.223.53.36

138,02 ms

Quad9

9.9.9.9

52.223.0.124, 76.223.53.36

136,76 ms

OpenDNS

208.67.222.222

52.223.0.124, 76.223.53.36

244,40 ms

AdGuard

94.140.14.14

52.223.0.124, 76.223.53.36

221,00 ms

IP, geolocation and ASNAssociated network information

52.223.0.124

No data

success

country

region

city

asn

organization

isp

76.223.53.36

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

uva-nl.t-v1.mx.microsoft

Port 25: Closed/unreachable - 18.4 ms - 
Port 465: Closed/unreachable - 4038.9 ms - 
Port 587: Closed/unreachable - 4019.1 ms -

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