winzip.com

Checked 22 October 2026, 11:31 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-10-31

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
1 November 1994
Last changed
29 September 2026
Expires
31 October 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1074.awsdns-06.org, ns-1947.awsdns-51.co.uk, ns-371.awsdns-46.com, ns-754.awsdns-30.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 2027-10-31 #3
    The registration is valid until 2027-10-31 (373 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns-1074.awsdns-06.org, ns-1947.awsdns-51.co.uk, ns-371.awsdns-46.com, ns-754.awsdns-30.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1074.awsdns-06.org, ns-1947.awsdns-51.co.uk, ns-371.awsdns-46.com, ns-754.awsdns-30.net
NS in the zone
ns-1074.awsdns-06.org, ns-1947.awsdns-51.co.uk, ns-371.awsdns-46.com, ns-754.awsdns-30.net
NameserverAddressesNetwork (AS)Glue
ns-1074.awsdns-06.org205.251.196.50 2600:9000:5304:3200::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1947.awsdns-51.co.uk205.251.199.155 2600:9000:5307:9b00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-371.awsdns-46.com205.251.193.115 2600:9000:5301:7300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.115 2600:9000:5301:7300::1
ns-754.awsdns-30.net205.251.194.242 2600:9000:5302:f200::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1074.awsdns-06.org, ns-1947.awsdns-51.co.uk, ns-371.awsdns-46.com, ns-754.awsdns-30.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-1074.awsdns-06.org 205.251.196.50NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1074.awsdns-06.org 2600:9000:5304:3200::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1947.awsdns-51.co.uk 205.251.199.155NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1947.awsdns-51.co.uk 2600:9000:5307:9b00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-371.awsdns-46.com 205.251.193.115NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-371.awsdns-46.com 2600:9000:5301:7300::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-754.awsdns-30.net 205.251.194.242NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-754.awsdns-30.net 2600:9000:5302:f200::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 1 · primary ns-754.awsdns-30.net

Found

Primary (MNAME)
ns-754.awsdns-30.net
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1074.awsdns-06.org (205.251.196.50)1
ns-1074.awsdns-06.org (2600:9000:5304:3200::1)1
ns-1947.awsdns-51.co.uk (205.251.199.155)1
ns-1947.awsdns-51.co.uk (2600:9000:5307:9b00::1)1
ns-371.awsdns-46.com (205.251.193.115)1
ns-371.awsdns-46.com (2600:9000:5301:7300::1)1
ns-754.awsdns-30.net (205.251.194.242)1
ns-754.awsdns-30.net (2600:9000:5302:f200::1)1

Checks

  • ✓ Serial 1 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-754.awsdns-30.net 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

29 records at the apex

Found

Read from
205.251.196.50:53
TypeValueTTL
SOAns-754.awsdns-30.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1074.awsdns-06.org.172800
NSns-1947.awsdns-51.co.uk.172800
NSns-371.awsdns-46.com.172800
NSns-754.awsdns-30.net.172800
A52.70.15.8660
A52.5.70.22860
A54.156.179.20360
A67.202.49.8760
AAAA2600:1f18:46:807:6510:4a9b:1778:a67460
AAAA2600:1f18:46:8a0:3664:4f5b:7674:42fa60
AAAA2600:1f18:46:8a8:f59c:7e0:61e4:87a760
AAAA2600:1f18:46:839:eb50:fa0a:1e7b:c2a560
MX10 winzip-com.mail.protection.outlook.com.600
TXT"MS=ms64966804"3600
TXT"MS=ms75859401"3600
TXT"adobe-idp-site-verification=db79780eea47bbff0127ee18aaabe3f16aa5267b3ebd618ed76437316cfa7681"3600
TXT"apple-domain-verification=PMY8iOrNgNCLwkmM"3600
TXT"atlassian-domain-verification=C5157X6GoWSIfjZLoHdhdgDjDsleN2aAUJs2Tp/C04DwfaHbW3QScnvweOBGJana"3600
TXT"atlassian-domain-verification=WXN/h3YzF4wYmQYVhDySQ5Gz6jf4ipxCXVNd6T8g7lGyhh7aGY3nIEU32TlRQrXB"3600
TXT"docusign=6b3dd13f-8a0d-4ca0-84c1-5ba512894627"3600
TXT"google-site-verification=39WCmb8wMb4r-OTf9ddohFBuzMkGivRJBbBtKpqyAOQ"3600
TXT"google-site-verification=DUVr4XGGbiaIsiR2s0UBFj3IFKgN0FekWXrqlajo3FQ"3600
TXT"google-site-verification=EttOOiGfI8Qr-6jGEEdvRexN93vbWUWvYVW-RhQ3WYs"3600
TXT"google-site-verification=SO0-yOzBIRRdvEehzyuKf07pbNMmFwH-7pXqBo8tQ5o"3600
TXT"google-site-verification=T0XSTuyotv3PVF3hEqx-tmAg11G6i0OVGVzufMVL19Y"3600
TXT"google-site-verification=xJEwwknKFM21CfmyWIotO5ruFjd0jmQe-tQCDz_J7m0"3600
TXT"parallels-domain-verification=d629b252ded247b5b1ff119f86ba7abaff924883d6b6406293f5d3c709bfdf46"3600
TXT"v=spf1 include:spf.winzip.com include:spf.protection.outlook.com include:spf.dynect.net include:servers.mcsv.net include:mktomail.com include:rp.oracleemaildelivery.com -all"3600

Checks

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