uswitch.com

Checked 22 October 2026, 11:20 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

Registration

info

.com generic · EuroDNS S.A. · expires 2029-02-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
EuroDNS S.A.
Registered
2 February 1999
Last changed
30 April 2026
Expires
2 February 2029
Status
client transfer prohibited
Registry nameservers
ns-1494.awsdns-58.org, ns-1584.awsdns-06.co.uk, ns-279.awsdns-34.com, ns-670.awsdns-19.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 2029-02-02 #3
    The registration is valid until 2029-02-02 (833 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

ns-1494.awsdns-58.org, ns-1584.awsdns-06.co.uk, ns-279.awsdns-34.com, ns-670.awsdns-19.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1494.awsdns-58.org, ns-1584.awsdns-06.co.uk, ns-279.awsdns-34.com, ns-670.awsdns-19.net
NS in the zone
ns-1494.awsdns-58.org, ns-1584.awsdns-06.co.uk, ns-279.awsdns-34.com, ns-670.awsdns-19.net
NameserverAddressesNetwork (AS)Glue
ns-1494.awsdns-58.org205.251.197.214 2600:9000:5305:d600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1584.awsdns-06.co.uk205.251.198.48 2600:9000:5306:3000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-279.awsdns-34.com205.251.193.23 2600:9000:5301:1700::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.23 2600:9000:5301:1700::1
ns-670.awsdns-19.net205.251.194.158 2600:9000:5302:9e00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1494.awsdns-58.org, ns-1584.awsdns-06.co.uk, ns-279.awsdns-34.com, ns-670.awsdns-19.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-1494.awsdns-58.org 205.251.197.214NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1494.awsdns-58.org 2600:9000:5305:d600::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1584.awsdns-06.co.uk 205.251.198.48NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1584.awsdns-06.co.uk 2600:9000:5306:3000::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-279.awsdns-34.com 205.251.193.23NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-279.awsdns-34.com 2600:9000:5301:1700::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-670.awsdns-19.net 205.251.194.158NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-670.awsdns-19.net 2600:9000:5302:9e00::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 2013020500 · primary ns-1494.awsdns-58.org

Found

Primary (MNAME)
ns-1494.awsdns-58.org
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
2013020500
Refresh / retry
28429 s / 14214 s
Expire
199003 s
Negative TTL
380454 s

Serial per nameserver

NameserverSerial
ns-1494.awsdns-58.org (205.251.197.214)2013020500
ns-1494.awsdns-58.org (2600:9000:5305:d600::1)2013020500
ns-1584.awsdns-06.co.uk (205.251.198.48)2013020500
ns-1584.awsdns-06.co.uk (2600:9000:5306:3000::1)2013020500
ns-279.awsdns-34.com (205.251.193.23)2013020500
ns-279.awsdns-34.com (2600:9000:5301:1700::1)2013020500
ns-670.awsdns-19.net (205.251.194.158)2013020500
ns-670.awsdns-19.net (2600:9000:5302:9e00::1)2013020500

Checks

  • ✓ Serial 2013020500 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    expire 55h16m43s is shorter than 7d; secondaries stop answering too soon when the primary is down; negative caching TTL (minimum) 105h40m54s is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 7h53m49s, retry 3h56m54s, expire 55h16m43s, negative TTL 105h40m54s.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1494.awsdns-58.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.
  • ✓ Date-based serial #26
    The serial 2013020500 follows the YYYYMMDDnn convention (2013-02-05).

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

35 records at the apex

Found

Read from
205.251.197.214:53
TypeValueTTL
SOAns-1494.awsdns-58.org. awsdns-hostmaster.amazon.com. 2013020500 28429 14214 199003 3804540
NSns-1494.awsdns-58.org.60
NSns-1584.awsdns-06.co.uk.60
NSns-279.awsdns-34.com.60
NSns-670.awsdns-19.net.60
A151.101.129.55300
A151.101.193.55300
A151.101.1.55300
A151.101.65.55300
MX1 aspmx.l.google.com.60
MX10 aspmx2.googlemail.com.60
MX10 aspmx3.googlemail.com.60
MX5 alt1.aspmx.l.google.com.60
MX5 alt2.aspmx.l.google.com.60
TXT"MS=ms63730388"60
TXT"_45hzn5y9hfa9ivy0buqpgz5td04gjr5"60
TXT"_globalsign-domain-verification=1yXH4s6C8kR7yRNKNZJe8Q95_7vd6x9VOsBtaXUzX_"60
TXT"_globalsign-domain-verification=xfkrv3yRwA5GGm0E4l5RlcNKTqVD8KAYsYdCYTBMF0"60
TXT"_qav64ir9zh56ns9fmbt1c6tb2ebfq7b"60
TXT"apple-domain-verification=4BIg9ZCoJc0emxLJ"60
TXT"apple-domain-verification=BstSw_jLKb2ozQNSR6F9sSmQaxi8CSiftdzof-zBJ58"60
TXT"apple-domain-verification=srARVzmXOgXR5PZq"60
TXT"atlassian-domain-verification=+T0Mrf0/40ebxfb4A1Che3/niG76PV1TNFzm+XZ9U/yYHIzRSsvx0hKZlp7MK87z"60
TXT"dropbox-domain-verification=y3oyomav0boj"60
TXT"facebook-domain-verification=oo0r6f98hfw0t3cem90xepz9lf81ee"60
TXT"google-site-verification=DTwx9vwnI4Jd0AYAwoBa-Ir0v1BbTEKRD-pGO1ympf4"60
TXT"google-site-verification=J_8v-hPG1RSvfUWKbw9Fo4eNJSF_N0GNVggpmrlsr7k"60
TXT"google-site-verification=K5L5Rzo4FmOSvKk2S_PuuydRDbszg89aP63YqEiL2-c"60
TXT"google-site-verification=MKJMkkkAjwtXRaI9cYgKAeI3HyQn7Mj3mA2v0lY5kcw"60
TXT"google-site-verification=PqkadQl5GWz0OdUfJNdmHphFznNQK331Vjo0TLPmaBw"60
TXT"google-site-verification=YpZBNR2T57Rmdc52B6lJYtKAPBSzJ0paJxMVTTJWxrE"60
TXT"google-site-verification=frqtRozha3m26wCREL-0zY3OM431pMDGXHDDL5YyOfo"60
TXT"google-site-verification=jE3P5u1buxrBpJDlAPdClzRNP33BVCntMQog4X0_JdE"60
TXT"notion-domain-verification=pnMfV2IrzOf0XHSHu4miPlurnTLrMk0ZsBILv84oBXp"60
TXT"v=spf1 include:_spf.google.com include:amazonses.com include:sendgrid.net include:spf.mandrillapp.com -all"60

Checks

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