fontys.nl

Checked 21 October 2026, 21:15 UTC · via 8.8.8.8
!Passed with warnings
23 passed 4 warnings 0 failed 8 info

Registration

info

.nl country-code · SURF B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
SURF B.V.
Registered
24 November 1996
Last changed
9 October 2025
Status
active
Registry nameservers
hermes.fontys.nl, ns1.surfnet.nl, ns2.surfnet.nl
RDAP server
https://rdap.sidn.nl/

Checks

  • i
    .nl is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .nl is delegated in the root zone and DNSSEC-signed.
  • i
    Expiry date not published
    The registry does not publish the expiry date in RDAP. Check it with your registrar.
    #3
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

hermes.fontys.nl, ns1.surfnet.nl, ns2.surfnet.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
hermes.fontys.nl, ns1.surfnet.nl, ns2.surfnet.nl
NS in the zone
hermes.fontys.nl, ns1.surfnet.nl, ns2.surfnet.nl
NameserverAddressesNetwork (AS)Glue
hermes.fontys.nl145.85.2.2AS1103 SURFNET-NL - SURF B.V., NL145.85.2.2
ns1.surfnet.nl192.87.106.101 2001:610:1:800a:192:87:106:101AS1103 SURFNET-NL - SURF B.V., NL AS1103 SURFNET-NL - SURF B.V., NL192.87.106.101 2001:610:1:800a:192:87:106:101
ns2.surfnet.nl192.87.36.2 2001:610:3:200a:192:87:36:2AS1103 SURFNET-NL - SURF B.V., NL AS1103 SURFNET-NL - SURF B.V., NL192.87.36.2 2001:610:3:200a:192:87:36:2

Checks

  • ✓ 3 nameservers #6
    Delegated to hermes.fontys.nl, ns1.surfnet.nl, ns2.surfnet.nl.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: hermes.fontys.nl.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 3 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1103 (SURFNET-NL - SURF B.V., NL): 5 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .nl
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • i
    Partly IPv6
    These nameservers have no IPv6 address: hermes.fontys.nl.
    #13

Nameservers

info

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
hermes.fontys.nl 145.85.2.2NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns1.surfnet.nl 192.87.106.101NOERROR, 10 ms, authoritativenoyes / yesrefusedThis is a SURFnet nameserver - dns-beheer@surfnet.nl
ns1.surfnet.nl 2001:610:1:800a:192:87:106:101NOERROR, 10 ms, authoritativenoyes / yesrefusedThis is a SURFnet nameserver - dns-beheer@surfnet.nl
ns2.surfnet.nl 192.87.36.2NOERROR, 12 ms, authoritativenoyes / yesrefusedThis is a SURFnet nameserver - dns-beheer@surfnet.nl
ns2.surfnet.nl 2001:610:3:200a:192:87:36:2NOERROR, 12 ms, authoritativenoyes / yesrefusedThis is a SURFnet nameserver - dns-beheer@surfnet.nl

Checks

  • ✓ All respond #14
    All 5 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.surfnet.nl: "This is a SURFnet nameserver - dns-beheer@surfnet.nl"; ns2.surfnet.nl: "This is a SURFnet nameserver - dns-beheer@surfnet.nl".
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 2024113235 · primary hermes.fontys.nl

Found

Primary (MNAME)
hermes.fontys.nl
Contact (RNAME)
postmaster.fontys.nl
Serial
2024113235
Refresh / retry
3600 s / 3600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
hermes.fontys.nl (145.85.2.2)2024113235
ns1.surfnet.nl (192.87.106.101)2024113235
ns1.surfnet.nl (2001:610:1:800a:192:87:106:101)2024113235
ns2.surfnet.nl (192.87.36.2)2024113235
ns2.surfnet.nl (2001:610:3:200a:192:87:36:2)2024113235

Checks

  • ✓ Serial 2024113235 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 14d, negative TTL 1h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver hermes.fontys.nl is one of the listed nameservers.
  • ✓ Contact postmaster@fontys.nl #25
    The SOA RNAME postmaster.fontys.nl means postmaster@fontys.nl.
  • ✓ Timestamp serial #26
    The serial 2024113235 is a Unix timestamp (2034-02-21 05:40 UTC).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
50 iterations, 8-byte salt
Signatures valid until
25 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
2394ECDSAP256SHA256 (13)SHA256 313F10ED46B1A4A0…yes
33805ECDSAP256SHA256 (13)SHA256 7A65292461C868AB…yes

DNSKEY in the zone

Key tagRoleAlgorithm
18145ZSK (256)ECDSAP256SHA256 (13)
2394KSK (257)ECDSAP256SHA256 (13)
33805KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 2394 (SHA256), key tag 33805 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • !
    Signatures expire soon
    The earliest signature expires at 2026-10-25 15:58 UTC (in 91h0m0s). Check that automatic re-signing works.
    #30
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 50 iterations and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Records

warn

17 records at the apex

Found

Read from
145.85.2.2:53
TypeValueTTL
SOAhermes.fontys.nl. postmaster.fontys.nl. 2024113235 3600 3600 1209600 36003600
NSns2.surfnet.nl.3600
NSns1.surfnet.nl.3600
NShermes.fontys.nl.3600
A3.120.234.23860
MX0 fontys-nl.s-v1.mx.microsoft.60
TXT"Fontys Hogescholen"3600
TXT"mentimeter-90589ed2-d839-4b3b-bc8a-741903eefe16"3600
TXT"google-site-verification=1RT1LC_ppAgoyYCbi0xm7lcMPBHXp73DkqPTy4yMxzQ"3600
TXT"P.O. Box 347, 5600 AH Eindhoven"3600
TXT"the Netherlands"3600
TXT"_q0fhdja5w65vl08kwx2p3zsmq988qkt"3600
TXT"apple-domain-verification=L6TJpi5Dc5XManpy"3600
TXT"adobe-idp-site-verification=f4833b738ee056577f8ef82a5762c7e8dc2d3a4a0234bd4f7ab1600e11422eca"3600
TXT"PdkJVNobb+LDk8qpnbEiw8j9RzyEzOC6xe6QBAjDe0DCUOq3FJfB+nZVTp6nJdc3RWLAlmBFVDX4M5rz8ihqyw=="3600
TXT"v=spf1 include:spf.protection.outlook.com include:spf_include.fontys.nl include:_spf.salesforce.com -all"3600
TXT"HARICA-lKBCOEX8zUyJ6FWhqK4"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m). Low TTLs are useful just before a planned change.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35