santander.com

.com generic · Tucows Domains Inc. · expires 2035-04-22

Found

TLD

.com (generic)

ICANN policies apply

yes

Registrar

Tucows Domains Inc.

Registered

23 April 1998

Last changed

13 October 2025

Expires

22 April 2035

Status

client transfer prohibited, client update prohibited

Registry nameservers

a1-49.akam.net, a11-67.akam.net, a12-65.akam.net, a14-67.akam.net, a2-65.akam.net, a9-65.akam.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 2035-04-22 #3

  The registration is valid until 2035-04-22 (3103 days).
• ✓ Transfer locked #4

  Registry status: client transfer prohibited, client update prohibited.
• ✓ Registry and delegation match #5

  The nameservers registered at the registry are the ones published in DNS.

a1-49.akam.net, a11-67.akam.net, a12-65.akam.net, a14-67.akam.net, a2-65.akam.net, a9-65.akam.net

Found

Parent zone

com

Delegation from

a.gtld-servers.net (192.5.6.30)

NS at the parent

a1-49.akam.net, a11-67.akam.net, a12-65.akam.net, a14-67.akam.net, a2-65.akam.net, a9-65.akam.net

NS in the zone

a1-49.akam.net, a11-67.akam.net, a12-65.akam.net, a14-67.akam.net, a2-65.akam.net, a9-65.akam.net

Checks

• ✓ 6 nameservers #6

  Delegated to a1-49.akam.net, a11-67.akam.net, a12-65.akam.net, a14-67.akam.net, a2-65.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.
• ✓ 2 autonomous systems #11

  The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 addresses.
• 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.

serial 2023082228 · primary dns01.santandergroup.net

Found

Primary (MNAME)

dns01.santandergroup.net

Contact (RNAME)

hostmastergsc.gruposantander.com

Serial

2023082228

Refresh / retry

10800 s / 3600 s

Expire

2419200 s

Negative TTL

900 s

Serial per nameserver

Checks

• ✓ Serial 2023082228 everywhere #22

  All nameservers serve the same version of the zone.
• ✓ Timers within recommendations #23

  SOA refresh 3h, retry 1h, expire 28d, negative TTL 15m.
• i

  Hidden master

  The primary nameserver dns01.santandergroup.net is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.

  #24
• ✓ Contact hostmastergsc@gruposantander.com #25

  The SOA RNAME hostmastergsc.gruposantander.com means hostmastergsc@gruposantander.com.
• ✓ Date-based serial #26

  The serial 2023082228 follows the YYYYMMDDnn convention (2023-08-22).

24 records at the apex

Found

Read from

193.108.91.49:53

Checks

• ✓ TTLs within range #32

  TTLs: A 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.
• ✓ 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