aliyundrive.com

Checked 22 October 2026, 07:42 UTC · via 8.8.8.8
✗Problems found
23 passed 3 warnings 2 failed 3 info

Registration

info

.com generic · Alibaba Cloud Computing (Beijing) Co., Ltd. · expires 2028-11-08

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
8 November 2019
Last changed
30 July 2026
Expires
8 November 2028
Status
client transfer prohibited
Registry nameservers
ns1.alibabadns.cn, ns1.alibabadns.com, ns2.alibabadns.cn, ns2.alibabadns.com
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 2028-11-08 #3
    The registration is valid until 2028-11-08 (747 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

warn

ns1.alibabadns.cn, ns1.alibabadns.com, ns2.alibabadns.cn, ns2.alibabadns.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.alibabadns.cn, ns1.alibabadns.com, ns2.alibabadns.cn, ns2.alibabadns.com
NS in the zone
ns1.alibabadns.com, ns2.alibabadns.com
NameserverAddressesNetwork (AS)Glue
ns1.alibabadns.cn (parent only)140.205.122.66 47.88.74.38 106.11.35.19 47.241.207.18 106.11.41.157 140.205.103.192 2401:b180:4100::1AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN-
ns1.alibabadns.com140.205.103.192 47.88.74.38 106.11.35.19 47.241.207.18 106.11.41.157 140.205.122.66 2401:b180:4100::1AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN106.11.35.19 106.11.41.157 140.205.103.192 140.205.122.66 2401:b180:4100::1 47.241.207.18 47.88.74.38
ns2.alibabadns.cn (parent only)140.205.103.194 140.205.122.77 47.241.207.16 106.11.35.18 47.88.74.36 106.11.41.158 2401:b180:4100::2AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN-
ns2.alibabadns.com47.241.207.16 106.11.35.18 47.88.74.36 106.11.41.158 140.205.122.77 140.205.103.194 2401:b180:4100::2AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN106.11.35.18 106.11.41.158 140.205.103.194 140.205.122.77 2401:b180:4100::2 47.241.207.16 47.88.74.36

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.alibabadns.cn, ns1.alibabadns.com, ns2.alibabadns.cn, ns2.alibabadns.com.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns1.alibabadns.cn, ns2.alibabadns.cn. ns1.alibabadns.cn, ns1.alibabadns.com, ns2.alibabadns.cn, ns2.alibabadns.com report NS ns1.alibabadns.com ns2.alibabadns.com.
    #7
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2401:b180:4100::/48, while the other address family is spread over several networks.
    #10
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN): 14 addresses; AS45102 (ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN): 14 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .cn, .com.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

fail

27 of 28 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.alibabadns.cn 140.205.122.66NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.cn 47.88.74.38NOERROR, 159 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.cn 106.11.35.19NOERROR, 163 ms, authoritativenono / yesrefused-
ns1.alibabadns.cn 47.241.207.18NOERROR, 174 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.cn 106.11.41.157NOERROR, 142 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.cn 140.205.103.192no responsenono / no--
ns1.alibabadns.cn 2401:b180:4100::1NOERROR, 196 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.com 140.205.103.192NOERROR, 201 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.com 47.88.74.38NOERROR, 159 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.com 106.11.35.19NOERROR, 173 ms, authoritativenono / yesrefused-
ns1.alibabadns.com 47.241.207.18NOERROR, 179 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.com 106.11.41.157NOERROR, 138 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.com 140.205.122.66NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1.alibabadns.com 2401:b180:4100::1NOERROR, 207 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.cn 140.205.103.194NOERROR, 179 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.cn 140.205.122.77NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.cn 47.241.207.16NOERROR, 172 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.cn 106.11.35.18NOERROR, 158 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.cn 47.88.74.36NOERROR, 158 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.cn 106.11.41.158NOERROR, 165 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.cn 2401:b180:4100::2NOERROR, 213 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.com 47.241.207.16NOERROR, 173 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.com 106.11.35.18NOERROR, 158 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.com 47.88.74.36NOERROR, 159 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.com 106.11.41.158NOERROR, 155 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.com 140.205.122.77NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.com 140.205.103.194NOERROR, 185 ms, authoritativenoyes / yesrefused-
ns2.alibabadns.com 2401:b180:4100::2NOERROR, 212 ms, authoritativenoyes / yesrefused-

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns1.alibabadns.cn (140.205.103.192): read udp 46.225.38.91:32980->140.205.103.192:53: i/o timeout.
    #14
  • ✓ 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.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns1.alibabadns.cn (106.11.35.19): dial tcp 106.11.35.19:53: i/o timeout; ns1.alibabadns.com (106.11.35.19): dial tcp 106.11.35.19:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 2019122519 · primary ns1.alibabadns.com

Found

Primary (MNAME)
ns1.alibabadns.com
Contact (RNAME)
hostmaster.alibabadns.com
Serial
2019122519
Refresh / retry
3600 s / 1200 s
Expire
86400 s
Negative TTL
360 s

Serial per nameserver

NameserverSerial
ns1.alibabadns.cn (140.205.122.66)2019122519
ns1.alibabadns.cn (47.88.74.38)2019122519
ns1.alibabadns.cn (106.11.35.19)2019122519
ns1.alibabadns.cn (47.241.207.18)2019122519
ns1.alibabadns.cn (106.11.41.157)2019122519
ns1.alibabadns.cn (2401:b180:4100::1)2019122519
ns1.alibabadns.com (140.205.103.192)2019122519
ns1.alibabadns.com (47.88.74.38)2019122519
ns1.alibabadns.com (106.11.35.19)2019122519
ns1.alibabadns.com (47.241.207.18)2019122519
ns1.alibabadns.com (106.11.41.157)2019122519
ns1.alibabadns.com (140.205.122.66)2019122519
ns1.alibabadns.com (2401:b180:4100::1)2019122519
ns2.alibabadns.cn (140.205.103.194)2019122519
ns2.alibabadns.cn (140.205.122.77)2019122519
ns2.alibabadns.cn (47.241.207.16)2019122519
ns2.alibabadns.cn (106.11.35.18)2019122519
ns2.alibabadns.cn (47.88.74.36)2019122519
ns2.alibabadns.cn (106.11.41.158)2019122519
ns2.alibabadns.cn (2401:b180:4100::2)2019122519
ns2.alibabadns.com (47.241.207.16)2019122519
ns2.alibabadns.com (106.11.35.18)2019122519
ns2.alibabadns.com (47.88.74.36)2019122519
ns2.alibabadns.com (106.11.41.158)2019122519
ns2.alibabadns.com (140.205.122.77)2019122519
ns2.alibabadns.com (140.205.103.194)2019122519
ns2.alibabadns.com (2401:b180:4100::2)2019122519

Checks

  • ✓ Serial 2019122519 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 1h, retry 20m, expire 1d, negative TTL 6m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.alibabadns.com is one of the listed nameservers.
  • ✓ Contact hostmaster@alibabadns.com #25
    The SOA RNAME hostmaster.alibabadns.com means hostmaster@alibabadns.com.
  • ✓ Date-based serial #26
    The serial 2019122519 follows the YYYYMMDDnn convention (2019-12-25).

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

info

5 records at the apex

Found

Read from
140.205.122.66:53
TypeValueTTL
SOAns1.alibabadns.com. hostmaster.alibabadns.com. 2019122519 3600 1200 86400 360600
NSns2.alibabadns.com.86400
NSns1.alibabadns.com.86400
A123.56.218.176300
TXT"_globalsign-domain-verification=zOP_ni98FJZdVHnKtFUuEluGvpWL0vNZoLjbQsLMAo"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
  • ✓ 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