codechf.com - robtex.com
codechf.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 154.31.248.7🇩🇪 NEBULA-GLOBAL154.31.248.0/24 STARCLOUD GLOBAL | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1772538265 | ||||||
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=1787894570 | ||||||
Previously NS for
codechf.com |
Subdomains
mx7.codechf.com |
Same first word
codechf.com |
Similar names
Previous names
Next names
DNS History
10 records (5 active, 5 former)
○NScodechf.com2016-12-15 → 2017-07-03 · 4 obs
● 2017-07-03 13:10:46
○ 2026-08-18 10:48:52
○ 2026-08-28 05:41:48
○NSns1.expiereddnsmanager.com2016-12-15 → 2017-07-03 · 4 obs
● 2017-07-03 13:10:46
○ 2026-08-18 10:48:52
○ 2026-08-28 05:41:48
●NSns1.judns.com2026-08-18 → 2026-08-28 · 3 obs
● 2026-08-18 10:48:52
● 2026-08-28 05:41:48
●NSns1.julydns.com2026-08-18 → 2026-08-28 · 3 obs
● 2026-08-18 10:48:52
● 2026-08-28 05:41:48
○NSns2.expiereddnsmanager.com2016-12-15 → 2017-07-03 · 4 obs
● 2017-07-03 13:10:46
○ 2026-08-18 10:48:52
○ 2026-08-28 05:41:48
●NSns2.judns.com2026-08-18 → 2026-08-28 · 3 obs
● 2026-08-18 10:48:52
● 2026-08-28 05:41:48
●NSns2.julydns.com2026-08-18 → 2026-08-28 · 3 obs
● 2026-08-18 10:48:52
● 2026-08-28 05:41:48
○MXmx7.codechf.com2016-12-15 → 2017-07-03 · 4 obs
● 2017-07-03 13:10:46
○ 2026-08-18 10:48:52
○ 2026-08-28 05:41:48
●A154.31.248.72026-08-18 → 2026-08-28 · 3 obs
● 2026-08-18 10:48:52
● 2026-08-28 05:41:48
○A213.247.47.1902016-12-15 → 2017-07-03 · 4 obs
● 2017-07-03 13:10:46
○ 2026-08-18 10:48:52
○ 2026-08-28 05:41:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| codechf.com | ns1.judns.com, ns2.judns.com | 2 records |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codechf.com (unsigned zone)
⏱️ Timing
Total: 343ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.31.248.7 |
| 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.judns.com, ns2.judns.com)
Analysis
Hierarchy
mx7.codechf.com is delegated beneath codechf.com.
IP Addresses
codechf.com resolves to one IP address: 154.31.248.7.
Further host names like tvpep.com and mx7.codechf.com overlap in IP numbers with codechf.com.
Name Servers
The authoritative name servers for codechf.com are ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
There is at least partial name server overlap between codechf.com and other domains — jnnesmg.cn, bm188.com, drfmt.cn and two more among them.
These name servers frequently co-occur with the name servers ns1.onclouddns.com and ns2.onclouddns.com.
Four host names each point to one IP address: ns1.judns.com and ns2.judns.com both point to 162.159.27.251, and ns1.julydns.com and ns2.julydns.com both point to 162.159.48.223.
Host names pointing to 162.159.27.251 IP addresses: ns1.judns.com and ns2.judns.com.
Host names pointing to 162.159.48.223 IP addresses: ns1.julydns.com and ns2.julydns.com.