Domain report: umeng.com

Registration

info

.com generic · Alibaba Cloud Computing (Beijing) Co., Ltd. · expires 2030-11-29

Found

TLD: .com (generic)
ICANN policies apply: yes
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered: 29 November 2005
Last changed: 1 September 2026
Expires: 29 November 2030
Status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update 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 2030-11-29 #3

The registration is valid until 2030-11-29 (1499 days).
✓ Transfer locked #4

Registry status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update 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

Nameserver	Addresses	Network (AS)	Glue
ns1.alibabadns.cn (parent only)	140.205.122.66 140.205.103.192 47.241.207.18 106.11.35.19 106.11.41.157 47.88.74.38 2401:b180:4100::1	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 AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN	-
ns1.alibabadns.com	106.11.41.157 47.241.207.18 140.205.103.192 106.11.35.19 140.205.122.66 47.88.74.38 2401:b180:4100::1	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 AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN	106.11.35.19 106.11.41.157 140.205.103.192 140.205.122.66 2401:b180:4100::1 47.241.207.18 47.88.74.38
ns2.alibabadns.cn (parent only)	106.11.35.18 140.205.103.194 47.241.207.16 140.205.122.77 106.11.41.158 47.88.74.36 2401:b180:4100::2	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 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 AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN	-
ns2.alibabadns.com	47.241.207.16 140.205.122.77 106.11.35.18 140.205.103.194 47.88.74.36 106.11.41.158 2401:b180:4100::2	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 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	106.11.35.18 106.11.41.158 140.205.103.194 140.205.122.77 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): 12 addresses; AS45102 (ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN): 16 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

26 of 28 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.alibabadns.cn 140.205.122.66	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.cn 140.205.103.192	NOERROR, 202 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.cn 47.241.207.18	NOERROR, 172 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.cn 106.11.35.19	NOERROR, 161 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.cn 106.11.41.157	NOERROR, 151 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.cn 47.88.74.38	NOERROR, 161 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.cn 2401:b180:4100::1	NOERROR, 194 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.com 106.11.41.157	NOERROR, 151 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.com 47.241.207.18	NOERROR, 174 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.com 140.205.103.192	NOERROR, 223 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.com 106.11.35.19	no response	no	no / no	-	-
ns1.alibabadns.com 140.205.122.66	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.com 47.88.74.38	NOERROR, 161 ms, authoritative	no	yes / yes	refused	-
ns1.alibabadns.com 2401:b180:4100::1	NOERROR, 202 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.cn 106.11.35.18	NOERROR, 159 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.cn 140.205.103.194	NOERROR, 196 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.cn 47.241.207.16	NOERROR, 174 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.cn 140.205.122.77	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.cn 106.11.41.158	NOERROR, 163 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.cn 47.88.74.36	NOERROR, 161 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.cn 2401:b180:4100::2	no response	no	no / no	-	-
ns2.alibabadns.com 47.241.207.16	NOERROR, 178 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.com 140.205.122.77	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.com 106.11.35.18	NOERROR, 213 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.com 140.205.103.194	NOERROR, 197 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.com 47.88.74.36	NOERROR, 161 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.com 106.11.41.158	NOERROR, 165 ms, authoritative	no	yes / yes	refused	-
ns2.alibabadns.com 2401:b180:4100::2	NOERROR, 203 ms, authoritative	no	yes / yes	refused	-

Checks

✗

Nameservers not responding

These addresses did not answer, so resolvers waste time on timeouts: ns1.alibabadns.com (106.11.35.19): read udp 46.225.38.91:50333->106.11.35.19:53: i/o timeout; ns2.alibabadns.cn (2401:b180:4100::2): read udp [2a01:4f8:1c1c:eebf::1]:56279->[2401:b180:4100::2]: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.
✓ 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 2017113019 · primary ns1.alibabadns.com

Found

Primary (MNAME): ns1.alibabadns.com
Contact (RNAME): hostmaster.hichina.com
Serial: 2017113019
Refresh / retry: 3600 s / 1200 s
Expire: 3600 s
Negative TTL: 360 s

Serial per nameserver

Nameserver	Serial
ns1.alibabadns.cn (140.205.122.66)	2017113019
ns1.alibabadns.cn (140.205.103.192)	2017113019
ns1.alibabadns.cn (47.241.207.18)	2017113019
ns1.alibabadns.cn (106.11.35.19)	2017113019
ns1.alibabadns.cn (106.11.41.157)	2017113019
ns1.alibabadns.cn (47.88.74.38)	2017113019
ns1.alibabadns.cn (2401:b180:4100::1)	2017113019
ns1.alibabadns.com (106.11.41.157)	2017113019
ns1.alibabadns.com (47.241.207.18)	2017113019
ns1.alibabadns.com (140.205.103.192)	2017113019
ns1.alibabadns.com (140.205.122.66)	2017113019
ns1.alibabadns.com (47.88.74.38)	2017113019
ns1.alibabadns.com (2401:b180:4100::1)	2017113019
ns2.alibabadns.cn (106.11.35.18)	2017113019
ns2.alibabadns.cn (140.205.103.194)	2017113019
ns2.alibabadns.cn (47.241.207.16)	2017113019
ns2.alibabadns.cn (140.205.122.77)	2017113019
ns2.alibabadns.cn (106.11.41.158)	2017113019
ns2.alibabadns.cn (47.88.74.36)	2017113019
ns2.alibabadns.com (47.241.207.16)	2017113019
ns2.alibabadns.com (140.205.122.77)	2017113019
ns2.alibabadns.com (106.11.35.18)	2017113019
ns2.alibabadns.com (140.205.103.194)	2017113019
ns2.alibabadns.com (47.88.74.36)	2017113019
ns2.alibabadns.com (106.11.41.158)	2017113019
ns2.alibabadns.com (2401:b180:4100::2)	2017113019

Checks

✓ Serial 2017113019 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

expire 1h is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 1h must be longer than refresh + retry. Current values: refresh 1h, retry 20m, expire 1h, negative TTL 6m.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns1.alibabadns.com is one of the listed nameservers.
✓ Contact hostmaster@hichina.com #25

The SOA RNAME hostmaster.hichina.com means hostmaster@hichina.com.
✓ Date-based serial #26

The serial 2017113019 follows the YYYYMMDDnn convention (2017-11-30).

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

11 records at the apex

Found

Read from: 140.205.122.66:53

Type	Value	TTL
SOA	ns1.alibabadns.com. hostmaster.hichina.com. 2017113019 3600 1200 3600 360	600
NS	ns1.alibabadns.com.	172800
NS	ns2.alibabadns.com.	172800
A	123.57.253.206	120
MX	10 mx1.alibaba-inc.com.	600
MX	20 mxus1.alibaba-inc.com.	600
TXT	"v=spf1 include:spf1.staff.mail.aliyun.com -all"	600
TXT	"_globalsign-domain-verification=s5VHT_2xWwz4iOPjtdJ7HyeyTFWvVw7mDbJ6sKUH_t"	600
TXT	"verify_a33742c1d86c8d2a0b0dd8e53b661e1e"	600
TXT	"_globalsign-domain-verification=VP0EQW6k6oUVwQFyolCVG3dVu-0Hx3f8gqd-VLmL9z"	600
CAA	0 issue "globalsign.com"	3600

Checks

!

Very low TTLs

These records have a TTL below 5m, causing extra queries and slower lookups: A (2m). 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.
✓ CAA restricts issuance #35

Certificates may be issued by: globalsign.com.