surfright.nl

Checked 22 October 2026, 16:30 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 5 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/surfright.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/surfright.nl returned HTTP 429
    #3

Delegation

info

a1-100.akam.net, a10-65.akam.net, a11-66.akam.net, a14-67.akam.net, a18-64.akam.net, a9-65.akam.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-100.akam.net, a10-65.akam.net, a11-66.akam.net, a14-67.akam.net, a18-64.akam.net, a9-65.akam.net
NS in the zone
a1-100.akam.net, a10-65.akam.net, a11-66.akam.net, a14-67.akam.net, a18-64.akam.net, a9-65.akam.net
NameserverAddressesNetwork (AS)Glue
a1-100.akam.net193.108.91.100 2600:1401:2::64AS21342 AKAMAI-ASN2 - 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-
a11-66.akam.net84.53.139.66 2600:1480:1::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a14-67.akam.net184.26.161.67 2600:1480:1800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a18-64.akam.net95.101.36.64 2600:1480:4800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a9-65.akam.net184.85.248.65 2a02:26f0:117::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-100.akam.net, a10-65.akam.net, a11-66.akam.net, a14-67.akam.net, a18-64.akam.net, a9-65.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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 12 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 .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
a1-100.akam.net 193.108.91.100NOERROR, 5 ms, authoritativenoyes / yesrefused41824.8
a1-100.akam.net 2600:1401:2::64NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11
a10-65.akam.net 96.7.50.65NOERROR, 3 ms, authoritativenoyes / yesrefused48878.26
a10-65.akam.net 2600:1480:d000::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a11-66.akam.net 84.53.139.66NOERROR, 3 ms, authoritativenoyes / yesrefused41824.5
a11-66.akam.net 2600:1480:1::42NOERROR, 4 ms, authoritativenoyes / yesrefused41824.8
a14-67.akam.net 184.26.161.67NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a14-67.akam.net 2600:1480:1800::43NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a18-64.akam.net 95.101.36.64NOERROR, 5 ms, authoritativenoyes / yesrefused48878.29
a18-64.akam.net 2600:1480:4800::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.29
a9-65.akam.net 184.85.248.65NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a9-65.akam.net 2a02:26f0:117::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4

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: a1-100.akam.net: "41824.8"; a1-100.akam.net: "41824.11"; a10-65.akam.net: "48878.26"; a10-65.akam.net: "48878.27"; a11-66.akam.net: "41824.5"; a11-66.akam.net: "41824.8"; a14-67.akam.net: "48878.30"; a14-67.akam.net: "48878.32"; a18-64.akam.net: "48878.29"; a9-65.akam.net: "41824.5"; a9-65.akam.net: "41824.4". 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

warn

serial 2020091747 · primary a1-100.akam.net

Found

Primary (MNAME)
a1-100.akam.net
Contact (RNAME)
hostmaster.sophos.com
Serial
2020091747
Refresh / retry
3600 s / 7200 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
a1-100.akam.net (193.108.91.100)2020091747
a1-100.akam.net (2600:1401:2::64)2020091747
a10-65.akam.net (96.7.50.65)2020091747
a10-65.akam.net (2600:1480:d000::41)2020091747
a11-66.akam.net (84.53.139.66)2020091747
a11-66.akam.net (2600:1480:1::42)2020091747
a14-67.akam.net (184.26.161.67)2020091747
a14-67.akam.net (2600:1480:1800::43)2020091747
a18-64.akam.net (95.101.36.64)2020091747
a18-64.akam.net (2600:1480:4800::40)2020091747
a9-65.akam.net (184.85.248.65)2020091747
a9-65.akam.net (2a02:26f0:117::41)2020091747

Checks

  • ✓ Serial 2020091747 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 2h should be shorter than refresh 1h. Current values: refresh 1h, retry 2h, expire 14d, negative TTL 5m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-100.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@sophos.com #25
    The SOA RNAME hostmaster.sophos.com means hostmaster@sophos.com.
  • ✓ Date-based serial #26
    The serial 2020091747 follows the YYYYMMDDnn convention (2020-09-17).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

17 records at the apex

Found

Read from
193.108.91.100:53
TypeValueTTL
SOAa1-100.akam.net. hostmaster.sophos.com. 2020091747 3600 7200 1209600 300300
NSa10-65.akam.net.3600
NSa14-67.akam.net.3600
NSa11-66.akam.net.3600
NSa18-64.akam.net.3600
NSa1-100.akam.net.3600
NSa9-65.akam.net.3600
A75.2.51.81300
A99.83.230.36300
MX10 surfright-nl.mail.protection.outlook.com.300
TXT"v=spf1 include:spf.protection.outlook.com -all"300
TXT"WBc3FGEFaRfj095Z0mJqFxfcIBSXQgLsOKzR0sGDpsQ="300
TXT"redirectold.azurewebsites.net"300
TXT"/CXoh3JBvlrxpE+J1ovaOPNadJFtVerEKuuQsNugpMY="300
TXT"MS=ms70800498"300
TXT"yqSChZpEwgPNHna2bdAZhr6ASFb82MxruOD00tp0NEc="300
TXT"8XnBlZqV5LM6S3WAyE4hFKvJhkx9pb52O9HKScFHlGw="300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 1h.
  • ✓ 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