iberdrola.com

Checked 22 October 2026, 09:14 UTC · via 8.8.8.8
!Passed with warnings
25 passed 4 warnings 0 failed 2 info

Registration

info

.com generic · Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA · expires 2027-10-05

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA
Registered
6 October 1998
Last changed
6 October 2026
Expires
5 October 2027
Status
active
Registry nameservers
dns.iberdrola.es, dns2.iberdrola.es, nsusctmar04.iberdrola.com, nsusorsw104.iberdrola.com
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 2027-10-05 #3
    The registration is valid until 2027-10-05 (347 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

dns.iberdrola.es, dns2.iberdrola.es, nsusctmar04.iberdrola.com, nsusorsw104.iberdrola.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns.iberdrola.es, dns2.iberdrola.es, nsusctmar04.iberdrola.com, nsusorsw104.iberdrola.com
NS in the zone
dns.iberdrola.es, dns2.iberdrola.es, nsusctmar04.iberdrola.com, nsusorsw104.iberdrola.com
NameserverAddressesNetwork (AS)Glue
dns.iberdrola.es217.22.97.10AS15711 IBERDROLA - Iberdrola S.A., ES-
dns2.iberdrola.es217.22.105.68AS15711 IBERDROLA - Iberdrola S.A., ES-
nsusctmar04.iberdrola.com157.225.202.39AS10499 IUMC-IT - Rochester Gas and Electric Corporation, US157.225.202.39
nsusorsw104.iberdrola.com157.225.102.39AS10499 IUMC-IT - Rochester Gas and Electric Corporation, US157.225.102.39

Checks

  • ✓ 4 nameservers #6
    Delegated to dns.iberdrola.es, dns2.iberdrola.es, nsusctmar04.iberdrola.com, nsusorsw104.iberdrola.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: nsusctmar04.iberdrola.com, nsusorsw104.iberdrola.com.
  • ✓ 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 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS10499 (IUMC-IT - Rochester Gas and Electric Corporation, US): 2 addresses; AS15711 (IBERDROLA - Iberdrola S.A., ES): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .es.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.iberdrola.es 217.22.97.10NOERROR, 48 ms, authoritativenoyes / yesrefused-
dns2.iberdrola.es 217.22.105.68NOERROR, 46 ms, authoritativenoyes / yesrefused-
nsusctmar04.iberdrola.com 157.225.202.39NOERROR, 89 ms, authoritativenoyes / yesrefused-
nsusorsw104.iberdrola.com 157.225.102.39NOERROR, 143 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2010084890 · primary dns.iberdrola.es

Found

Primary (MNAME)
dns.iberdrola.es
Contact (RNAME)
please_set_email.absolutely.nowhere
Serial
2010084890
Refresh / retry
3600 s / 3600 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
dns.iberdrola.es (217.22.97.10)2010084890
dns2.iberdrola.es (217.22.105.68)2010084890
nsusctmar04.iberdrola.com (157.225.202.39)2010084890
nsusorsw104.iberdrola.com (157.225.102.39)2010084890

Checks

  • ✓ Serial 2010084890 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 28d, negative TTL 15m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.iberdrola.es is one of the listed nameservers.
  • ✓ Contact please_set_email@absolutely.nowhere #25
    The SOA RNAME please_set_email.absolutely.nowhere means please_set_email@absolutely.nowhere.
  • ✓ Timestamp serial #26
    The serial 2010084890 is a Unix timestamp (2033-09-11 20:54 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

warn

29 records at the apex

Found

Read from
217.22.97.10:53
TypeValueTTL
SOAdns.iberdrola.es. please_set_email.absolutely.nowhere. 2010084890 3600 3600 2419200 90028800
NSdns.iberdrola.es.28800
NSnsusorsw104.iberdrola.com.28800
NSdns2.iberdrola.es.28800
NSnsusctmar04.iberdrola.com.28800
A2.16.8.744
A2.16.8.824
MX10 iberdrola.in.tmes.trendmicro.eu.3600
TXT"_lv67rnef4hjv8kgiqabvbpsvfukkynh"3600
TXT"v=spf1 redirect=spf.iberdrola.com"3600
TXT"MS=ms79659791"3600
TXT"tmes=01f2ea0eff0108702535ab0a01aa71dd"3600
TXT"vry90m72qphkssx00995g1k7n0qthszf"3600
TXT"facebook-domain-verification=tqms5p26frmfyin2rjtjehpzcaew4b"3600
TXT"OoMAcKKQrVfjz/L410rRyqboLZidohzGsVypUNeVJ+nPm/OroaHa5pONF+vFr6qWW+79tKn3KECuifX+sLDZSw=="3600
TXT"google-site-verification=erJrRBvzDO-PPQ-p7yh26J-My0vc8omtIVD7c9JurhY"3600
TXT"apple-domain-verification=wSGSaciO4XRO2LTo"3600
TXT"1fapl3ugoq5dgcf38feh42ddlo"3600
TXT"docusign=587f5e29-4685-4bc4-b48e-0217bff0dbde"3600
TXT"atlassian-domain-verification=byus6FOIL3ftvFuUcJbPsV2XKe8M6EVpCLLN8zRamqCfgaBjnNaNYcfIzd4siFtg"3600
TXT"_mz8not7d74z1j8yjata2fddnhsyz9od"3600
TXT"google-site-verification=ztnzEB6oaQAbR788zDc_0EM2UrcrfQDjdA7t2SsbkyU"3600
CAA0 issuewild "letsencrypt.org"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "digicert.com"3600
CAA0 iodef "mailto:dnstec@iberdrola.es"3600
CAA0 issuewild "digicert.com"3600
CAA0 issuewild "amazon.com"3600
CAA0 issue "amazon.com"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (4s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 8h; 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: letsencrypt.org, digicert.com, amazon.com.