readshop.nl

Checked 22 October 2026, 15:40 UTC · via 8.8.8.8
!Passed with warnings
28 passed 2 warnings 0 failed 3 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/readshop.nl returned HTTP 429

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
    Could not be checked
    The RDAP lookup failed, so this could not be checked: https://rdap.sidn.nl/domain/readshop.nl returned HTTP 429
    #3

Delegation

info

a1-101.akam.net, a10-65.akam.net, a13-64.akam.net, a14-64.akam.net, a4-66.akam.net, a7-65.akam.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-101.akam.net, a10-65.akam.net, a13-64.akam.net, a14-64.akam.net, a4-66.akam.net, a7-65.akam.net
NS in the zone
a1-101.akam.net, a10-65.akam.net, a13-64.akam.net, a14-64.akam.net, a4-66.akam.net, a7-65.akam.net
NameserverAddressesNetwork (AS)Glue
a1-101.akam.net193.108.91.101 2600:1401:2::65AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a10-65.akam.net96.7.50.65 2600:1480:d000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a13-64.akam.net2.22.230.64 2600:1480:800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a14-64.akam.net184.26.161.64 2600:1480:1800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a4-66.akam.net72.246.46.66 2600:1480:9000::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-65.akam.net23.61.199.65 2600:1406:32::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-101.akam.net, a10-65.akam.net, a13-64.akam.net, a14-64.akam.net, a4-66.akam.net, a7-65.akam.net.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ 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 6 IPv4 /24s and 6 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 addresses.
  • i
    All nameserver names under .net
    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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-101.akam.net 193.108.91.101NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a1-101.akam.net 2600:1401:2::65NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a10-65.akam.net 96.7.50.65NOERROR, 3 ms, authoritativenoyes / yesrefused48878.30
a10-65.akam.net 2600:1480:d000::41NOERROR, 6 ms, authoritativenoyes / yesrefused48878.29
a13-64.akam.net 2.22.230.64NOERROR, 5 ms, authoritativenoyes / yesrefused41824.4
a13-64.akam.net 2600:1480:800::40NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a14-64.akam.net 184.26.161.64NOERROR, 6 ms, authoritativenoyes / yesrefused48878.30
a14-64.akam.net 2600:1480:1800::40NOERROR, 6 ms, authoritativenoyes / yesrefused48878.32
a4-66.akam.net 72.246.46.66NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a4-66.akam.net 2600:1480:9000::42NOERROR, 5 ms, authoritativenoyes / yesrefused48878.31
a7-65.akam.net 23.61.199.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.4
a7-65.akam.net 2600:1406:32::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11

Checks

  • ✓ All respond #14
    All 12 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-101.akam.net: "41824.8"; a1-101.akam.net: "41824.9"; a10-65.akam.net: "48878.30"; a10-65.akam.net: "48878.29"; a13-64.akam.net: "41824.4"; a14-64.akam.net: "48878.30"; a14-64.akam.net: "48878.32"; a4-66.akam.net: "48878.30"; a4-66.akam.net: "48878.31"; a7-65.akam.net: "41824.4"; a7-65.akam.net: "41824.11". Hide or replace the version string.
    #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

pass

serial 2021071472 · primary a1-101.akam.net

Found

Primary (MNAME)
a1-101.akam.net
Contact (RNAME)
hostmaster.readshop.nl
Serial
2021071472
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
a1-101.akam.net (193.108.91.101)2021071472
a1-101.akam.net (2600:1401:2::65)2021071472
a10-65.akam.net (96.7.50.65)2021071472
a10-65.akam.net (2600:1480:d000::41)2021071472
a13-64.akam.net (2.22.230.64)2021071472
a13-64.akam.net (2600:1480:800::40)2021071472
a14-64.akam.net (184.26.161.64)2021071472
a14-64.akam.net (2600:1480:1800::40)2021071472
a4-66.akam.net (72.246.46.66)2021071472
a4-66.akam.net (2600:1480:9000::42)2021071472
a7-65.akam.net (23.61.199.65)2021071472
a7-65.akam.net (2600:1406:32::41)2021071472

Checks

  • ✓ Serial 2021071472 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-101.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@readshop.nl #25
    The SOA RNAME hostmaster.readshop.nl means hostmaster@readshop.nl.
  • ✓ Date-based serial #26
    The serial 2021071472 follows the YYYYMMDDnn convention (2021-07-14).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
24 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
47528ECDSAP256SHA256 (13)SHA256 A3447DD92F5DB020…yes

DNSKEY in the zone

Key tagRoleAlgorithm
58649ZSK (256)ECDSAP256SHA256 (13)
64537ZSK (256)ECDSAP256SHA256 (13)
47528KSK (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 47528 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 73h0m0s and created on demand; the current one was made at 2026-10-21 19:20 UTC and expires at 2026-10-24 20:20 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

warn

24 records at the apex

Found

Read from
193.108.91.101:53
TypeValueTTL
SOAa1-101.akam.net. hostmaster.readshop.nl. 2021071472 3600 600 604800 30086400
NSa4-66.akam.net.86400
NSa13-64.akam.net.86400
NSa10-65.akam.net.86400
NSa7-65.akam.net.86400
NSa14-64.akam.net.86400
NSa1-101.akam.net.86400
A2.23.176.15420
A2.23.176.19120
AAAA2a02:26f0:b700:14::215:6ed520
AAAA2a02:26f0:b700:14::215:6ed420
MX10 alt4.aspmx.l.google.com.300
MX5 alt1.aspmx.l.google.com.300
MX10 alt3.aspmx.l.google.com.300
MX1 aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"v=spf1 a:smtp.nextgenerationnetworks.nl include:_spf.online.superoffice.com include:spf.smtp2go.com ip4:80.237.245.226 include:_spf.google.com include:spf.flowmailer.net " "ip4:145.255.128.26 ip4:145.255.128.27 ip4:194.109.24.0/24 ip4:194.109.127.0/24 ip4:185.87.249.232 ip4:185.87.249.222 ip4:212.41.136.65/26 ip4:92.63.168.192 ip4:92.63.169.41 ip4:92.63.172.137 ip4:92.63.171.134 a ~all"300
TXT"v=DMARC1; p=none; rua=mailto:info@readshop.nl"300
TXT"google-site-verification=Y4QKRpqf3hhqnwnsNwh-lCi-so_YAxu0kk2ItBGuLo0"300
TXT"google-site-verification=uG_xh8RaEEsyB5jp-hajugsYMbpnjt6m22r6RA8JclU"300
CAA0 issue "digicert.com"300
CAA0 issue "amazon.com"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "sectigo.com"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, amazon.com, letsencrypt.org, sectigo.com.