chengmaedu.com - robtex.com
chengmaedu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.153.32.23🇨🇳 CHINANET-IDC-CQ219.153.32.0/24 CT-Chongqing-IDC | ||||||
| NS | ns1.julydns.com ⭐ | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| PTR | ip-47-97-51-45.defastlink.net | ||||||
| NS | ns2.julydns.com | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-162-159-48-223.defastlink.net | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1764777134 | ||||||
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=1771291435 | ||||||
Same first word
chengmaedu.com |
DNS History
3 records (3 active, 0 former)
●NSns1.julydns.com2026-02-17 → 2026-03-09 · 2 obs
● 2026-03-09 08:12:50
●NSns2.julydns.com2026-02-17 → 2026-03-09 · 2 obs
● 2026-03-09 08:12:50
●A219.153.32.232026-02-17 → 2026-03-09 · 2 obs
● 2026-03-09 08:12:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| chengmaedu.com | ns1.julydns.com, ns2.julydns.com | 2 records |
✅ Authoritative Response
Server: 162.159.48.223
NS records: ns1.julydns.com, ns2.julydns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chengmaedu.com (unsigned zone)
⏱️ Timing
Total: 538ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.153.32.23 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.julydns.com, ns2.julydns.com)
Analysis
IP Addresses
chengmaedu.com resolves to a single IP address: 219.153.32.23.
Other host names including nstdj.com, izyao.com, hndsqs.com, yangchi-int.com and 031106.com share IP numbers with chengmaedu.com.
Name Servers
chengmaedu.com's delegation uses two name servers, ns1.julydns.com and ns2.julydns.com.
chengmaedu.com shares the same name server setup as other domains, for example scycip.com, hbmtzb.com, hyhongyi.com, a-020.com and droauto.com.
chengmaedu.com at least partially shares name servers with other domains, including yydbx.com, upwlgen.cn, fncq.cn, geyyaaj.com and bahezi.com.
These name servers are commonly used with ns1.judns.com and ns2.judns.com.
Host names with a single IP:
ns1.julydns.com points to 47.97.51.45.
ns2.julydns.com points to 162.159.48.223.