021syy.com - robtex.com
021syy.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.43.152.135🇨🇳 Alibaba-Cloud121.42.0.0/15 | ||||||
| NS | a.ezdnscenter.com ⭐ | ||||||
| A | 218.98.111.140🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | b.ezdnscenter.com | ||||||
| A | 183.253.57.210🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.58🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | a.ezdnscenter.comdnsadmin@ezdnscenter.com serial=1751342705 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774573297 | ||||||
Same first word
021syy.com |
Similar names
DNS History
13 records (3 active, 10 former)
●NSa.ezdnscenter.com2026-03-27 → 2026-03-27 · 3 obs
○ 2020-02-06 23:34:22
● 2026-03-27 01:21:44
● 2026-03-27 01:21:48
● 2026-03-27 01:21:44
● 2026-03-27 01:21:48
●NSb.ezdnscenter.com2026-03-27 → 2026-03-27 · 3 obs
○ 2020-02-06 23:34:22
● 2026-03-27 01:21:44
● 2026-03-27 01:21:48
● 2026-03-27 01:21:44
● 2026-03-27 01:21:48
○NSns1.72dns.com2015-07-16 → 2017-01-07 · 4 obs
● 2015-07-16 18:58:42
● 2017-01-07 06:05:26
○ 2020-02-06 23:34:22
○ 2026-03-27 01:21:48
● 2017-01-07 06:05:26
○ 2020-02-06 23:34:22
○ 2026-03-27 01:21:48
○NSns1.ezdnscenter.com2020-02-06 → 2020-02-06 · 4 obs
○ 2017-01-07 06:05:26
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
○NSns2.ezdnscenter.com2020-02-06 → 2020-02-06 · 4 obs
○ 2017-01-07 06:05:26
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
○NSns2.idc1.cn2015-07-16 → 2017-01-07 · 4 obs
● 2015-07-16 18:58:42
● 2017-01-07 06:05:26
○ 2020-02-06 23:34:22
○ 2026-03-27 01:21:48
● 2017-01-07 06:05:26
○ 2020-02-06 23:34:22
○ 2026-03-27 01:21:48
○NSns3.ezdnscenter.com2020-02-06 → 2020-02-06 · 4 obs
○ 2017-01-07 06:05:26
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
○NSns4.ezdnscenter.com2020-02-06 → 2020-02-06 · 4 obs
○ 2017-01-07 06:05:26
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
○NSns5.ezdnscenter.com2020-02-06 → 2020-02-06 · 4 obs
○ 2017-01-07 06:05:26
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
○NSns6.ezdnscenter.com2020-02-06 → 2020-02-06 · 4 obs
○ 2017-01-07 06:05:26
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
○A119.146.201.472015-07-16 → 2017-01-07 · 4 obs
● 2015-07-16 18:58:42
● 2017-01-07 06:05:26
○ 2020-02-06 23:34:22
○ 2026-03-27 01:21:48
● 2017-01-07 06:05:26
○ 2020-02-06 23:34:22
○ 2026-03-27 01:21:48
●A121.43.152.1352026-03-27 → 2026-03-27 · 3 obs
○ 2020-02-06 23:34:22
● 2026-03-27 01:21:44
● 2026-03-27 01:21:48
● 2026-03-27 01:21:44
● 2026-03-27 01:21:48
○A222.73.130.1472020-02-06 → 2020-02-06 · 4 obs
○ 2017-01-07 06:05:26
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
● 2020-02-06 23:34:22
○ 2026-03-27 01:21:44
○ 2026-03-27 01:21:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net... | - |
| 021syy.com | a.ezdnscenter.com, b.ezdnscenter.com | 3 records |
✅ Authoritative Response
Server:218.98.111.140
NS records: a.ezdnscenter.com, b.ezdnscenter.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 021syy.com (unsigned zone)
⏱️ Timing
Total: 847ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.43.152.135 |
| NS | 2 | a.ezdnscenter.com, b.ezdnscenter.com |
| SOA | 1 | a.ezdnscenter.com dnsadmin.ezdnscenter.c |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (a.ezdnscenter.com, b.ezdnscenter.com, b.ezdnscenter.com)
Analysis
IP Addresses
021syy.com points to IP number 121.43.152.135.
Name Servers
021syy.com is delegated to two name servers: a.ezdnscenter.com and b.ezdnscenter.com.
021syy.com uses the same name server setup as other domains such as kakru.net, jlstcc.com, xmzcps.com, bycad.net and dosomi.com.
Host names with two IP numbers:
The host name b.ezdnscenter.com points to 183.253.57.210 and 211.99.99.58.
Host names with one IP number:
The host name a.ezdnscenter.com points to 218.98.111.140.