wcourse.cn - robtex.com
wcourse.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 201.5.208.112 | ||||||
| NS | a.share-dns.com ⭐ | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.share-dns.net | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1773733960 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035115424 | ||||||
Same first word
Similar names
osucrew.com |
usecrow.com |
coeurws.com |
usecrow.org |
wcrouse.com |
surowce.com |
surowce.online |
coursew.com |
osucrew.org |
cowsure.com |
sourcew.com |
usecrow.ai |
DNS History
8 records (3 active, 5 former)
●NSa.share-dns.com2026-05-29 → 2026-07-31 · 3 obs
● 2026-05-29 09:36:46
● 2026-07-31 09:18:16
●NSb.share-dns.net2026-05-29 → 2026-07-31 · 3 obs
● 2026-05-29 09:36:46
● 2026-07-31 09:18:16
○NSdns10.hichina.com2018-08-27 → 2018-08-27 · 3 obs
○ 2026-05-29 09:36:46
○ 2026-07-31 09:18:16
○NSdns9.hichina.com2018-08-27 → 2018-08-27 · 3 obs
○ 2026-05-29 09:36:46
○ 2026-07-31 09:18:16
○MXmxn.mxhichina.com2018-08-27 → 2018-08-27 · 3 obs
○ 2026-05-29 09:36:46
○ 2026-07-31 09:18:16
○MXmxw.mxhichina.com2018-08-27 → 2018-08-27 · 3 obs
○ 2026-05-29 09:36:46
○ 2026-07-31 09:18:16
○A120.55.50.1552018-08-27 → 2018-08-27 · 3 obs
○ 2026-05-29 09:36:46
○ 2026-07-31 09:18:16
●A201.5.208.1122026-05-29 → 2026-07-31 · 3 obs
● 2026-05-29 09:36:46
● 2026-07-31 09:18:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| wcourse.cn | a.share-dns.com, b.share-dns.net | - |
✅ Authoritative Response
Server:172.64.52.239
NS records: a.share-dns.com, b.share-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for wcourse.cn (unsigned zone)
⏱️ Timing
Total: 815ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 201.5.208.112 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
Analysis
IP Addresses
wcourse.cn resolves to one IP address: 201.5.208.112.
Name Servers
Two name servers handle the delegation for wcourse.cn: a.share-dns.com and b.share-dns.net.
wcourse.cn uses the same name servers as several other domains — among them jucai0826.com, tintmaker.com, ishmeitian.com and two more.
wcourse.cn shares at least some of its name servers with other domains, including badunkj.com, 998cp8.com, ldbd1999.com and two others.
These name servers are frequently seen alongside a3.share-dns.com, b3.share-dns.net, a10.share-dns.com and 7 other name servers.
a.share-dns.com and b.share-dns.net each resolve to one IP number: a.share-dns.com points to 172.64.53.25 and b.share-dns.net points to 172.64.52.239.