synchrony.com

Checked 22 October 2026, 10:53 UTC · via 8.8.8.8
!Passed with warnings
29 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-09-14

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
15 September 1995
Last changed
10 September 2026
Expires
14 September 2027
Status
client transfer prohibited
Registry nameservers
a1-181.akam.net, a18-66.akam.net, a20-64.akam.net, a22-67.akam.net, a3-64.akam.net, a7-64.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 2027-09-14 #3
    The registration is valid until 2027-09-14 (326 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

a1-181.akam.net, a18-66.akam.net, a20-64.akam.net, a22-67.akam.net, a3-64.akam.net, a7-64.akam.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a1-181.akam.net, a18-66.akam.net, a20-64.akam.net, a22-67.akam.net, a3-64.akam.net, a7-64.akam.net
NS in the zone
a1-181.akam.net, a18-66.akam.net, a20-64.akam.net, a22-67.akam.net, a3-64.akam.net, a7-64.akam.net
NameserverAddressesNetwork (AS)Glue
a1-181.akam.net193.108.91.181 2600:1401:2::b5AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a18-66.akam.net95.101.36.66 2600:1480:4800::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a20-64.akam.net95.100.175.64 2a02:26f0:67::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a22-67.akam.net23.211.61.67 2600:1480:7800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-64.akam.net96.7.49.64 2600:1408:1c::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-64.akam.net23.61.199.64 2600:1406:32::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-181.akam.net, a18-66.akam.net, a20-64.akam.net, a22-67.akam.net, a3-64.akam.net, a7-64.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.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-181.akam.net 193.108.91.181NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a1-181.akam.net 2600:1401:2::b5NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a18-66.akam.net 95.101.36.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a18-66.akam.net 2600:1480:4800::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a20-64.akam.net 95.100.175.64NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a20-64.akam.net 2a02:26f0:67::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a22-67.akam.net 23.211.61.67NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a22-67.akam.net 2600:1480:7800::43NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a3-64.akam.net 96.7.49.64NOERROR, 3 ms, authoritativenoyes / yesrefused41824.9
a3-64.akam.net 2600:1408:1c::40NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a7-64.akam.net 23.61.199.64NOERROR, 3 ms, authoritativenoyes / yesrefused41824.9
a7-64.akam.net 2600:1406:32::40NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10

Checks

  • ✓ All respond #14
    All 12 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: a1-181.akam.net: "41824.5"; a1-181.akam.net: "41824.10"; a18-66.akam.net: "48878.31"; a18-66.akam.net: "48878.26"; a20-64.akam.net: "48878.27"; a20-64.akam.net: "48878.32"; a22-67.akam.net: "48878.31"; a22-67.akam.net: "48878.32"; a3-64.akam.net: "41824.9"; a3-64.akam.net: "41824.8"; a7-64.akam.net: "41824.9"; a7-64.akam.net: "41824.10". 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 2021060350 · primary a1-181.akam.net

Found

Primary (MNAME)
a1-181.akam.net
Contact (RNAME)
hostmaster.synchrony.com
Serial
2021060350
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
a1-181.akam.net (193.108.91.181)2021060350
a1-181.akam.net (2600:1401:2::b5)2021060350
a18-66.akam.net (95.101.36.66)2021060350
a18-66.akam.net (2600:1480:4800::42)2021060350
a20-64.akam.net (95.100.175.64)2021060350
a20-64.akam.net (2a02:26f0:67::40)2021060350
a22-67.akam.net (23.211.61.67)2021060350
a22-67.akam.net (2600:1480:7800::43)2021060350
a3-64.akam.net (96.7.49.64)2021060350
a3-64.akam.net (2600:1408:1c::40)2021060350
a7-64.akam.net (23.61.199.64)2021060350
a7-64.akam.net (2600:1406:32::40)2021060350

Checks

  • ✓ Serial 2021060350 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-181.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@synchrony.com #25
    The SOA RNAME hostmaster.synchrony.com means hostmaster@synchrony.com.
  • ✓ Date-based serial #26
    The serial 2021060350 follows the YYYYMMDDnn convention (2021-06-03).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
25 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
6454ECDSAP256SHA256 (13)SHA256 20242AE143A8A3E4…NO
19794ECDSAP256SHA256 (13)SHA256 9475ABDF3B1DA83C…yes

DNSKEY in the zone

Key tagRoleAlgorithm
53014ZSK (256)ECDSAP256SHA256 (13)
30461ZSK (256)ECDSAP256SHA256 (13)
19794KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • i
    Unused DS records
    These DS records match no key in the zone: key tag 6454 (SHA256). That is normal during a key rollover; otherwise remove them.
    #28
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 73h0m0s and created on demand; the current one was made at 2026-10-22 02:03 UTC and expires at 2026-10-25 03:03 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

warn

28 records at the apex

Found

Read from
193.108.91.181:53
TypeValueTTL
SOAa1-181.akam.net. hostmaster.synchrony.com. 2021060350 3600 600 604800 30086400
NSa1-181.akam.net.86400
NSa20-64.akam.net.86400
NSa22-67.akam.net.86400
NSa7-64.akam.net.86400
NSa18-66.akam.net.86400
NSa3-64.akam.net.86400
A23.59.17.6020
MX20 mx0b-001ba401.pphosted.com.1800
MX10 mxb-001ba401.gslb.pphosted.com.1800
MX20 mx0a-001ba401.pphosted.com.1800
MX10 mxa-001ba401.gslb.pphosted.com.1800
TXT"ej5PPjweaOPyx9e2jHKeplueSpdxSgdcOh6PFAsv1mL/VDiKI1kcaYg7NbzEND7D+p7b9wBrzOvJnEDsjXmkMw=="3600
TXT"docusign=d81864f2-8763-4632-9eba-588bdd0592d9"3600
TXT"_p04mpd5sh6db2a3by4bd6c3nruy9auf"3600
TXT"docusign=f7b647db-f847-48c1-aa14-cb5e8795cc79"3600
TXT"docusign=2e5aa548-069f-4ebd-b6df-525114a06980"3600
TXT"_2vt8il6bwhfka3w5kwi5leyhrg17zsm"3600
TXT"_birprm1ig3zshd518thjpx8jzi7t9kd"3600
TXT"docusign=7c2e2f91-df1b-474e-bd80-da475cc46395"3600
TXT"docusign=ac0310ef-30fe-4a73-9cee-15ededa1b2aa"3600
TXT"postman-domain-verification=d8195f4fc75e320d74a1c9b224edfa72dfc3796a1b23a5c030600c1511644c92"3600
TXT"docusign=6dc74e99-cd23-471b-befc-5eea06cd3165"3600
TXT"google-site-verification=-9KgSsEHOf5WcizQxwM7ANaXGQikn7EFL7rQhhcQ5qk"3600
TXT"MS=ms64680352"3600
TXT"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all"3600
TXT"adobe-idp-site-verification=3292996a72217086396074679d263f26f9bc0ad29ea64dce2960ae8e5551db53"3600
TXT"QuoVadis=96172c92-c07c-42f5-9672-df2e76bf47e3"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1d; 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.
  • 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