sharefile.com

Checked 22 October 2026, 10:41 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · Key-Systems GmbH · expires 2027-06-24

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Key-Systems GmbH
Registered
24 June 2001
Last changed
25 November 2025
Expires
24 June 2027
Status
client delete prohibited, client transfer prohibited
Registry nameservers
ns-1286.awsdns-32.org, ns-2046.awsdns-63.co.uk, ns-65.awsdns-08.com, ns-747.awsdns-29.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 2027-06-24 #3
    The registration is valid until 2027-06-24 (245 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns-1286.awsdns-32.org, ns-2046.awsdns-63.co.uk, ns-65.awsdns-08.com, ns-747.awsdns-29.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1286.awsdns-32.org, ns-2046.awsdns-63.co.uk, ns-65.awsdns-08.com, ns-747.awsdns-29.net
NS in the zone
ns-1286.awsdns-32.org, ns-2046.awsdns-63.co.uk, ns-65.awsdns-08.com, ns-747.awsdns-29.net
NameserverAddressesNetwork (AS)Glue
ns-1286.awsdns-32.org205.251.197.6 2600:9000:5305:600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-2046.awsdns-63.co.uk205.251.199.254 2600:9000:5307:fe00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-65.awsdns-08.com205.251.192.65 2600:9000:5300:4100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.65 2600:9000:5300:4100::1
ns-747.awsdns-29.net205.251.194.235 2600:9000:5302:eb00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1286.awsdns-32.org, ns-2046.awsdns-63.co.uk, ns-65.awsdns-08.com, ns-747.awsdns-29.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-1286.awsdns-32.org 205.251.197.6NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1286.awsdns-32.org 2600:9000:5305:600::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-2046.awsdns-63.co.uk 205.251.199.254NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-2046.awsdns-63.co.uk 2600:9000:5307:fe00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-65.awsdns-08.com 205.251.192.65NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-65.awsdns-08.com 2600:9000:5300:4100::1NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-747.awsdns-29.net 205.251.194.235NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-747.awsdns-29.net 2600:9000:5302:eb00::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

pass

serial 2016051801 · primary ns-2046.awsdns-63.co.uk

Found

Primary (MNAME)
ns-2046.awsdns-63.co.uk
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
2016051801
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1286.awsdns-32.org (205.251.197.6)2016051801
ns-1286.awsdns-32.org (2600:9000:5305:600::1)2016051801
ns-2046.awsdns-63.co.uk (205.251.199.254)2016051801
ns-2046.awsdns-63.co.uk (2600:9000:5307:fe00::1)2016051801
ns-65.awsdns-08.com (205.251.192.65)2016051801
ns-65.awsdns-08.com (2600:9000:5300:4100::1)2016051801
ns-747.awsdns-29.net (205.251.194.235)2016051801
ns-747.awsdns-29.net (2600:9000:5302:eb00::1)2016051801

Checks

  • ✓ Serial 2016051801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-2046.awsdns-63.co.uk 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 2016051801 follows the YYYYMMDDnn convention (2016-05-18).

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

33 records at the apex

Found

Read from
205.251.197.6:53
TypeValueTTL
SOAns-2046.awsdns-63.co.uk. awsdns-hostmaster.amazon.com. 2016051801 7200 900 1209600 86400900
NSns-1286.awsdns-32.org.172800
NSns-2046.awsdns-63.co.uk.172800
NSns-65.awsdns-08.com.172800
NSns-747.awsdns-29.net.172800
A65.9.130.9560
A65.9.130.6960
A65.9.130.1060
A65.9.130.1960
MX10 us-smtp-inbound-1.mimecast.com.300
MX10 us-smtp-inbound-2.mimecast.com.300
TXT"0ed1fe018a8c6fbeea14e94b1c95ce4aa7530ae842"3600
TXT"MS=ms44533672"3600
TXT"MS=ms49164917"3600
TXT"MS=ms55192712"3600
TXT"MS=ms64819228"3600
TXT"MS=ms65245390"3600
TXT"_globalsign-domain-verification=FyhiHAgMOMDBpihViR4kHhxTOm5RWwamZbE6tdS8aX"3600
TXT"_o3skw3we74rpkyulzn53mwku7o2w56n"3600
TXT"box-domain-verification=ba44e0cf29f37edd1352d2080c6a72d844137a37db15bc50715d5117250a0a6f"3600
TXT"dropbox-domain-verification=ivbkpfc1qg5v"3600
TXT"facebook-domain-verification=sw5u0wqoegtb1im12srax5peej4swh"3600
TXT"google-site-verification=0BnCRn0rO3dt3Bzh5oa59qofmusIFyv43mEEzDuJgfU"3600
TXT"google-site-verification=JDZ8ZwBhxxfOwNdYmhxJEeA8jkdPwEGusCzs1FkY4KE"3600
TXT"google-site-verification=_TqX4n4oI6Ffx3CF5jHM98dEJW0AjvnyyRjWIj8QnyM"3600
TXT"google-site-verification=bxmxiQ1m4wOnlU2q-FVMZLNzI4Jay0hE-Rq3WVk6BaE"3600
TXT"google-site-verification=ufulJWP8BnS4tWANeln8b7SejNZxuAq4iF9zvTj5jfg"3600
TXT"hcp-domain-verification=93c454c799eacd4a168a82359b8bc79a504d6c175caa5271691aaaf00bc794b3"3600
TXT"knj4tq77qcfqp71c2cqsyg2rt42hd492"3600
TXT"lk0br8965tbvtsmwv46vrrjxk4sm58np"3600
TXT"logmein-verification-code=KROUt0EGGAXKI27t6YiYm521T"3600
TXT"v=spf1 include:_spf.salesforce.com include:us._netblocks.mimecast.com include:sendgrid.net include:spf.protection.outlook.com -all"3600
TXT"wiz-domain-verification=7c47753d31ab194423d6ca83573012e4140e16cd5539e71a3fa461563656833f"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.
    #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