mastodon.nl

Checked 21 October 2026, 21:23 UTC · via 8.8.8.8
iAll checks passed
30 passed 0 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/mastodon.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/mastodon.nl returned HTTP 429
    #3

Delegation

pass

ns1.protag.io, ns2.procolix.eu, ns3.protagio.org

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.protag.io, ns2.procolix.eu, ns3.protagio.org
NS in the zone
ns1.protag.io, ns2.procolix.eu, ns3.protagio.org
NameserverAddressesNetwork (AS)Glue
ns1.protag.io77.222.74.19 2001:1540:403::6AS15830 Equinix - Equinix (EMEA) Acquisition Enterprises B.V., NL AS15830 Equinix - Equinix (EMEA) Acquisition Enterprises B.V., NL-
ns2.procolix.eu95.215.185.237 2a00:51c0::5fd7:b9edAS51758 Procolix - ProcoliX B.V., NL AS51758 Procolix - ProcoliX B.V., NL-
ns3.protagio.org95.215.185.238 2a00:51c0::5fd7:b9eeAS51758 Procolix - ProcoliX B.V., NL AS51758 Procolix - ProcoliX B.V., NL-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.protag.io, ns2.procolix.eu, ns3.protagio.org.
  • ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS15830 (Equinix - Equinix (EMEA) Acquisition Enterprises B.V., NL): 2 addresses; AS51758 (Procolix - ProcoliX B.V., NL): 4 addresses.
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .eu, .io, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.protag.io 77.222.74.19NOERROR, 11 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1.protag.io 2001:1540:403::6NOERROR, 11 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns2.procolix.eu 95.215.185.237NOERROR, 11 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns2.procolix.eu 2a00:51c0::5fd7:b9edNOERROR, 11 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns3.protagio.org 95.215.185.238NOERROR, 10 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns3.protagio.org 2a00:51c0::5fd7:b9eeNOERROR, 11 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 6 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.protag.io: "Served by PowerDNS - https://www.powerdns.com/"; ns2.procolix.eu: "Served by PowerDNS - https://www.powerdns.com/"; ns3.protagio.org: "Served by PowerDNS - https://www.powerdns.com/".
    #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 2026101004 · primary ns2.procolix.eu

Found

Primary (MNAME)
ns2.procolix.eu
Contact (RNAME)
beheer.procolix.com
Serial
2026101004
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.protag.io (77.222.74.19)2026101004
ns1.protag.io (2001:1540:403::6)2026101004
ns2.procolix.eu (95.215.185.237)2026101004
ns2.procolix.eu (2a00:51c0::5fd7:b9ed)2026101004
ns3.protagio.org (95.215.185.238)2026101004
ns3.protagio.org (2a00:51c0::5fd7:b9ee)2026101004

Checks

  • ✓ Serial 2026101004 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns2.procolix.eu is one of the listed nameservers.
  • ✓ Contact beheer@procolix.com #25
    The SOA RNAME beheer.procolix.com means beheer@procolix.com.
  • ✓ Date-based serial #26
    The serial 2026101004 follows the YYYYMMDDnn convention (2026-10-10).

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
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
11292ECDSAP256SHA256 (13)SHA256 2C4C0F34B2C42DDD…yes

DNSKEY in the zone

Key tagRoleAlgorithm
11292KSK (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 11292 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 00:00 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

10 records at the apex

Found

Read from
77.222.74.19:53
TypeValueTTL
SOAns2.procolix.eu. beheer.procolix.com. 2026101004 10800 3600 604800 360014400
NSns3.protagio.org.86400
NSns2.procolix.eu.86400
NSns1.protag.io.86400
A185.206.232.241300
AAAA2a00:51c0:12:1201::241300
MX10 smtp1.protagio.nl.3600
MX10 smtp2.protagio.nl.3600
TXT"v=spf1 +mx include:_spf.protagio.nl -all"3600
CAA0 issue "letsencrypt.org"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 1h, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.
  • ✓ 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: letsencrypt.org.