pages.de

Checked 21 October 2026, 23:42 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 warnings 0 failed 6 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
ICANN policies apply
no

Checks

  • i
    .de 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
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

info

fly.symlynx.com, nsc6.schlundtech.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
fly.symlynx.com, nsc6.schlundtech.de
NS in the zone
fly.symlynx.com, nsc6.schlundtech.de
NameserverAddressesNetwork (AS)Glue
fly.symlynx.com81.92.172.231AS21385 TNIB - Trusted Network GmbH, DE-
nsc6.schlundtech.de217.160.80.227 2001:8d8:fe:53:217:160:80:227AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: fly.symlynx.com, nsc6.schlundtech.de.
    #6
  • ✓ 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 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS21385 (TNIB - Trusted Network GmbH, DE): 1 address; AS8560 (IONOS-AS - IONOS SE, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .de.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: fly.symlynx.com.
    #13

Nameservers

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
fly.symlynx.com 81.92.172.231NOERROR, 10 ms, authoritativenoyes / yesrefused9.18.30
nsc6.schlundtech.de 217.160.80.227NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
nsc6.schlundtech.de 2001:8d8:fe:53:217:160:80:227NOERROR, 10 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 3 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: fly.symlynx.com: "9.18.30". 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 2025010101 · primary fly.symlynx.com

Found

Primary (MNAME)
fly.symlynx.com
Contact (RNAME)
hostmaster.no.spam.symlynx.com
Serial
2025010101
Refresh / retry
14400 s / 1800 s
Expire
2419200 s
Negative TTL
4404 s

Serial per nameserver

NameserverSerial
fly.symlynx.com (81.92.172.231)2025010101
nsc6.schlundtech.de (217.160.80.227)2025010101
nsc6.schlundtech.de (2001:8d8:fe:53:217:160:80:227)2025010101

Checks

  • ✓ Serial 2025010101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 30m, expire 28d, negative TTL 1h13m24s.
  • ✓ Primary is a public nameserver #24
    The primary nameserver fly.symlynx.com is one of the listed nameservers.
  • ✓ Contact hostmaster@no.spam.symlynx.com #25
    The SOA RNAME hostmaster.no.spam.symlynx.com means hostmaster@no.spam.symlynx.com.
  • ✓ Date-based serial #26
    The serial 2025010101 follows the YYYYMMDDnn convention (2025-01-01).

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

7 records at the apex

Found

Read from
81.92.172.231:53
TypeValueTTL
SOAfly.symlynX.com. hostmaster.no.spam.symlynX.com. 2025010101 14400 1800 2419200 440486400
NSnsc6.schlundtech.de.86400
NSfly.symlynX.com.86400
A81.92.172.23186400
MX49 ve.pages.de.86400
TXT"8626f08bb66f88b247179a0cf7fede5478f01ed6"86400
TXT"v=spf1 a ip4:81.92.172.192/26 a:kbx7.de a:lists.cypherpunks.ca a:perl-workshop.de a:lists.lysator.liu.se a:roxen.com a:mikrolisten.de a:klingons.de a:snake.de ~all"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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