yiiframework.com

Checked 22 October 2026, 11:40 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · 1API GmbH · expires 2028-05-21

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
1API GmbH
Registered
21 May 2008
Last changed
12 September 2026
Expires
21 May 2028
Status
client transfer prohibited
Registry nameservers
ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2028-05-21 #3
    The registration is valid until 2028-05-21 (576 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net
NS in the zone
ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net
NameserverAddressesNetwork (AS)Glue
ns1.mainns.de192.174.68.21 2001:67c:1bc::21AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns2.mainns.eu176.97.158.21 2001:67c:10b8::21AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns3.mainns.net192.174.68.20 2001:67c:1bc::20AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.mainns.de, ns2.mainns.eu, ns3.mainns.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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 6 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .de, .eu, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.mainns.de 192.174.68.21NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns1.mainns.de 2001:67c:1bc::21NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns2.mainns.eu 176.97.158.21NOERROR, 19 ms, authoritativenoyes / yesrefusedreg-wie1
ns2.mainns.eu 2001:67c:10b8::21NOERROR, 18 ms, authoritativenoyes / yesrefusedreg-wie1
ns3.mainns.net 192.174.68.20NOERROR, 8 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns3.mainns.net 2001:67c:1bc::20NOERROR, 8 ms, authoritativenoyes / yesrefusedRcodeZero DNS

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.mainns.de: "RcodeZero DNS"; ns2.mainns.eu: "reg-wie1"; ns3.mainns.net: "RcodeZero DNS".
    #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 1774887896 · primary ns1.mainns.de

Found

Primary (MNAME)
ns1.mainns.de
Contact (RNAME)
hostmaster.cebe.cc
Serial
1774887896
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
120 s

Serial per nameserver

NameserverSerial
ns1.mainns.de (192.174.68.21)1774887896
ns1.mainns.de (2001:67c:1bc::21)1774887896
ns2.mainns.eu (176.97.158.21)1774887896
ns2.mainns.eu (2001:67c:10b8::21)1774887896
ns3.mainns.net (192.174.68.20)1774887896
ns3.mainns.net (2001:67c:1bc::20)1774887896

Checks

  • ✓ Serial 1774887896 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 2m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 8h, retry 2h, expire 7d, negative TTL 2m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.mainns.de is one of the listed nameservers.
  • ✓ Contact hostmaster@cebe.cc #25
    The SOA RNAME hostmaster.cebe.cc means hostmaster@cebe.cc.
  • ✓ Timestamp serial #26
    The serial 1774887896 is a Unix timestamp (2026-03-30 16:24 UTC).

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

12 records at the apex

Found

Read from
192.174.68.21:53
TypeValueTTL
SOAns1.mainns.de. hostmaster.cebe.cc. 1774887896 28800 7200 604800 12086400
NSns1.mainns.de.86400
NSns2.mainns.eu.86400
NSns3.mainns.net.86400
A195.201.43.21886400
AAAA2a01:4f8:1c0c:63e7::186400
MX10 mxa.cebe.cc.86400
MX10 mxb.cebe.cc.86400
TXT"google-site-verification=YvhxhYpDSfu_Vhe2pPqblAnyyhWjzaNe7vZ2-p8M7zA"86400
TXT"v=spf1 a:moua.mail.cebe.net a:moub.mail.cebe.net ip4:107.20.134.47 ?all"86400
CAA0 issue "letsencrypt.org"43200
CAA0 issue "sectigo.com"43200

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, AAAA 1d, MX 1d, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
  • ✓ 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
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: letsencrypt.org, sectigo.com.