s3.eu-west-2.amazonaws.com

Checked 22 October 2026, 10:33 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 5 info

Registration

info

.com generic

Found

TLD
.com (generic)
Public suffix
.s3.eu-west-2.amazonaws.com
ICANN policies apply
yes

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply. Domains are registered under the public suffix .s3.eu-west-2.amazonaws.com.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: no RDAP record found for domain: s3.eu-west-2.amazonaws.com. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

info

ns-1119.awsdns-11.org, ns-1551.awsdns-01.co.uk, ns-488.awsdns-61.com, ns-531.awsdns-02.net

Found

Parent zone
eu-west-2.amazonaws.com
Delegation from
ns-1256.awsdns-29.org (205.251.196.232)
NS at the parent
ns-1119.awsdns-11.org, ns-1551.awsdns-01.co.uk, ns-488.awsdns-61.com, ns-531.awsdns-02.net
NS in the zone
ns-1119.awsdns-11.org, ns-1551.awsdns-01.co.uk, ns-488.awsdns-61.com, ns-531.awsdns-02.net
NameserverAddressesNetwork (AS)Glue
ns-1119.awsdns-11.org205.251.196.95 2600:9000:5304:5f00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1551.awsdns-01.co.uk205.251.198.15 2600:9000:5306:f00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-488.awsdns-61.com205.251.193.232 2600:9000:5301:e800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-531.awsdns-02.net205.251.194.19 2600:9000:5302:1300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1119.awsdns-11.org, ns-1551.awsdns-01.co.uk, ns-488.awsdns-61.com, ns-531.awsdns-02.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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 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 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1119.awsdns-11.org 205.251.196.95NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1119.awsdns-11.org 2600:9000:5304:5f00::1NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns-1551.awsdns-01.co.uk 205.251.198.15NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1551.awsdns-01.co.uk 2600:9000:5306:f00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-488.awsdns-61.com 205.251.193.232NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-488.awsdns-61.com 2600:9000:5301:e800::1NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns-531.awsdns-02.net 205.251.194.19NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-531.awsdns-02.net 2600:9000:5302:1300::1NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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 1 · primary ns-1119.awsdns-11.org

Found

Primary (MNAME)
ns-1119.awsdns-11.org
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
293 s

Serial per nameserver

NameserverSerial
ns-1119.awsdns-11.org (205.251.196.95)1
ns-1119.awsdns-11.org (2600:9000:5304:5f00::1)1
ns-1551.awsdns-01.co.uk (205.251.198.15)1
ns-1551.awsdns-01.co.uk (2600:9000:5306:f00::1)1
ns-488.awsdns-61.com (205.251.193.232)1
ns-488.awsdns-61.com (2600:9000:5301:e800::1)1
ns-531.awsdns-02.net (205.251.194.19)1
ns-531.awsdns-02.net (2600:9000:5302:1300::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 4m53s is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 2h, retry 15m, expire 14d, negative TTL 4m53s.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1119.awsdns-11.org is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

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

14 records at the apex

Found

Read from
205.251.196.95:53
TypeValueTTL
SOAns-1119.awsdns-11.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 29314341
NSns-1119.awsdns-11.org.172800
NSns-1551.awsdns-01.co.uk.172800
NSns-488.awsdns-61.com.172800
NSns-531.awsdns-02.net.172800
A3.5.245.175
A3.5.245.2225
A3.5.245.1945
A52.95.149.1005
A3.5.246.1145
A3.5.245.635
A3.5.245.825
A52.95.142.895
TXT"2dcb115d7e23ec9c86c758fd5d484692"1

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (5s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 30m1s and in the zone 2d; resolvers may use either.
    #32
  • ✓ 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