yuanlaifresh.com

Checked 22 October 2026, 11:41 UTC · via 8.8.8.8
✗Problems found
20 passed 3 warnings 1 failed 7 info

Registration

info

.com generic · Alibaba Cloud Computing (Beijing) Co., Ltd. · expires 2029-07-14

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
14 July 2020
Last changed
26 June 2026
Expires
14 July 2029
Status
active
Registry nameservers
dns17.hichina.com, dns18.hichina.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 2029-07-14 #3
    The registration is valid until 2029-07-14 (995 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

dns17.hichina.com, dns18.hichina.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns17.hichina.com, dns18.hichina.com
NS in the zone
dns17.hichina.com, dns18.hichina.com
NameserverAddressesNetwork (AS)Glue
dns17.hichina.com139.224.142.100 39.96.153.40 47.118.199.200 39.96.153.60 120.76.107.40 139.224.142.110 47.118.199.220 120.76.107.60 2408:4009:501::25AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN120.76.107.40 120.76.107.60 139.224.142.100 139.224.142.110 2408:4009:501::25 39.96.153.40 39.96.153.60 47.118.199.200 47.118.199.220
dns18.hichina.com139.224.142.108 39.96.153.38 120.76.107.61 39.96.153.61 139.224.142.98 47.118.199.198 120.76.107.38 47.118.199.222 2408:4009:501::26AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN120.76.107.38 120.76.107.61 139.224.142.108 139.224.142.98 2408:4009:501::26 39.96.153.38 39.96.153.61 47.118.199.198 47.118.199.222

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns17.hichina.com, dns18.hichina.com.
    #6
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2408:4009:501::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN): 18 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .com
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

fail

17 of 18 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns17.hichina.com 139.224.142.100NOERROR, 174 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 39.96.153.40NOERROR, 174 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 47.118.199.200NOERROR, 203 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 39.96.153.60NOERROR, 150 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 120.76.107.40NOERROR, 208 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 139.224.142.110NOERROR, 227 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 47.118.199.220NOERROR, 222 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 120.76.107.60NOERROR, 208 ms, authoritativenoyes / yesrefused-
dns17.hichina.com 2408:4009:501::25NOERROR, 182 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 139.224.142.108NOERROR, 175 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 39.96.153.38NOERROR, 153 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 120.76.107.61NOERROR, 216 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 39.96.153.61NOERROR, 152 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 139.224.142.98NOERROR, 176 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 47.118.199.198NOERROR, 196 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 120.76.107.38no responsenono / no--
dns18.hichina.com 47.118.199.222NOERROR, 180 ms, authoritativenoyes / yesrefused-
dns18.hichina.com 2408:4009:501::26NOERROR, 217 ms, authoritativenoyes / yesrefused-

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: dns18.hichina.com (120.76.107.38): read udp 46.225.38.91:46565->120.76.107.38:53: 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 2026082709 · primary dns17.hichina.com

Found

Primary (MNAME)
dns17.hichina.com
Contact (RNAME)
hostmaster.hichina.com
Serial
2026082709
Refresh / retry
3600 s / 1200 s
Expire
86400 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
dns17.hichina.com (139.224.142.100)2026082709
dns17.hichina.com (39.96.153.40)2026082617
dns17.hichina.com (47.118.199.200)2026082617
dns17.hichina.com (39.96.153.60)2026082616
dns17.hichina.com (120.76.107.40)2026081813
dns17.hichina.com (139.224.142.110)2020071415
dns17.hichina.com (47.118.199.220)2026082616
dns17.hichina.com (120.76.107.60)2026082509
dns17.hichina.com (2408:4009:501::25)2026082616
dns18.hichina.com (139.224.142.108)2026082709
dns18.hichina.com (39.96.153.38)2026082616
dns18.hichina.com (120.76.107.61)2026081813
dns18.hichina.com (39.96.153.61)2026082616
dns18.hichina.com (139.224.142.98)2020071415
dns18.hichina.com (47.118.199.198)2026082617
dns18.hichina.com (47.118.199.222)2026082616
dns18.hichina.com (2408:4009:501::26)2026082617

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 2020071415 on dns17.hichina.com (139.224.142.110), dns18.hichina.com (139.224.142.98); 2026081813 on dns17.hichina.com (120.76.107.40), dns18.hichina.com (120.76.107.61); 2026082509 on dns17.hichina.com (120.76.107.60); 2026082616 on dns17.hichina.com (39.96.153.60), dns17.hichina.com (47.118.199.220), dns17.hichina.com (2408:4009:501::25), dns18.hichina.com (39.96.153.38), dns18.hichina.com (39.96.153.61), dns18.hichina.com (47.118.199.222); 2026082617 on dns17.hichina.com (39.96.153.40), dns17.hichina.com (47.118.199.200), dns18.hichina.com (47.118.199.198), dns18.hichina.com (2408:4009:501::26); 2026082709 on dns17.hichina.com (139.224.142.100), dns18.hichina.com (139.224.142.108). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • !
    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 10m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns17.hichina.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 2026082709 follows the YYYYMMDDnn convention (2026-08-27).

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

6 records at the apex

Found

Read from
139.224.142.100:53
TypeValueTTL
SOAdns17.hichina.com. hostmaster.hichina.com. 2026082509 3600 1200 86400 600600
NSdns17.hichina.com.86400
NSdns18.hichina.com.86400
MX5 mxbiz1.qq.com.600
MX10 mxbiz2.qq.com.600
TXT"v=spf1 include:spf.mail.qq.com ~all"600

Checks

  • ✓ TTLs within range #32
    TTLs: MX 10m, 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