githubuser.com - dns.ninja
githubuser.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 74.206.228.78🇺🇸 WEBAIR74.206.224.0/19 Webair Internet Development Inc (customer route) | ||||||
| A | 173.239.5.6🇺🇸 WEBAIR173.239.5.0/24 | ||||||
| A | 173.239.8.164🇺🇸 WEBAIR173.239.8.0/24 | ||||||
| NS | githubuser.com ⭐ | ||||||
| A | 74.206.228.78🇺🇸 WEBAIR74.206.224.0/19 Webair Internet Development Inc (customer route) | ||||||
| A | 173.239.5.6🇺🇸 WEBAIR173.239.5.0/24 | ||||||
| A | 173.239.8.164🇺🇸 WEBAIR173.239.8.0/24 | ||||||
| PTR | icsvm3.webair.com | ||||||
| NS | ns1.expiereddnsmanager.com | ||||||
| A | 173.239.5.4🇺🇸 WEBAIR173.239.5.0/24 | ||||||
| PTR | renel4.webair.com | ||||||
| NS | ns2.expiereddnsmanager.com | ||||||
| A | 74.206.228.76🇺🇸 WEBAIR74.206.224.0/19 Webair Internet Development Inc (customer route) | ||||||
| PTR | icsvm2.webair.com | ||||||
| MX | mx7.githubuser.com ⭐ | ||||||
| A | 173.239.8.164🇺🇸 WEBAIR173.239.8.0/24 | ||||||
| PTR | icsvm3.webair.com | ||||||
| SOA | githubuser.comdns@githubuser.com serial=1 | ||||||
com
| DNSSEC | ⚠️ Not signed | ||||||
| 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=1787506141 | ||||||
NS for
githubuser.com |
Subdomains
Same first word
Previous names
Next names
DNS History
12 records (7 active, 5 former)
●NSgithubuser.com2026-03-20 → 2026-08-23 · 3 obs
● 2026-03-20 08:16:02
● 2026-08-23 17:37:54
○NSns1.dnsimple.com2015-05-07 → 2016-04-11 · 4 obs
● 2016-04-11 19:41:56
○ 2019-04-11 13:43:48
○ 2026-08-23 17:37:54
●NSns1.expiereddnsmanager.com2026-03-20 → 2026-08-23 · 3 obs
● 2026-03-20 08:16:02
● 2026-08-23 17:37:54
○NSns2.dnsimple.com2015-05-07 → 2016-04-11 · 4 obs
● 2016-04-11 19:41:56
○ 2019-04-11 13:43:48
○ 2026-08-23 17:37:54
●NSns2.expiereddnsmanager.com2026-03-20 → 2026-08-23 · 3 obs
● 2026-03-20 08:16:02
● 2026-08-23 17:37:54
○NSns3.dnsimple.com2015-05-07 → 2016-04-11 · 4 obs
● 2016-04-11 19:41:56
○ 2019-04-11 13:43:48
○ 2026-08-23 17:37:54
○NSns4.dnsimple.com2015-05-07 → 2016-04-11 · 4 obs
● 2016-04-11 19:41:56
○ 2019-04-11 13:43:48
○ 2026-08-23 17:37:54
●MXmx7.githubuser.com2026-03-20 → 2026-08-23 · 4 obs
○ 2026-08-22 01:36:28
● 2026-08-22 02:20:38
● 2026-08-23 17:37:54
●A173.239.5.62026-03-20 → 2026-08-23 · 5 obs
● 2026-03-20 08:16:02
○ 2026-08-22 01:36:28
● 2026-08-22 02:20:38
● 2026-08-23 17:37:54
●A173.239.8.1642026-03-20 → 2026-08-23 · 5 obs
● 2026-03-20 08:16:02
○ 2026-08-22 01:36:28
● 2026-08-22 02:20:38
● 2026-08-23 17:37:54
○A192.30.252.1542015-05-07 → 2016-04-11 · 4 obs
● 2016-04-11 19:41:56
○ 2019-04-11 13:43:48
○ 2026-08-23 17:37:54
●A74.206.228.782026-03-20 → 2026-08-23 · 5 obs
● 2026-03-20 08:16:02
○ 2026-08-22 01:36:28
● 2026-08-22 02:20:38
● 2026-08-23 17:37:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| githubuser.com | ns2.expiereddnsmanager.com, ns1.expiereddnsmanager.com | 2 records |
✅ Authoritative Response
Server:173.239.5.4
NS records: ns2.expiereddnsmanager.com, ns1.expiereddnsmanager.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for githubuser.com (unsigned zone)
⏱️ Timing
Total: 324ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 74.206.228.78, 173.239.5.6... |
| NS | 2 | ns2.expiereddnsmanager.com, ns1.expiereddnsmanager.com |
| MX | 1 | mx7.githubuser.com (pri: 1) |
| SOA | 1 | githubuser.com dns.githubuser.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.expiereddnsmanager.com, ns1.expiereddnsmanager.com)
Analysis
Hierarchy
The parent domain of mx7.githubuser.com and www.githubuser.com is githubuser.com.
Name Server Role
githubuser.com has githubuser.com as one of its name servers, making it self-hosted for DNS delegation.
The name servers ns1.expiereddnsmanager.com and ns2.expiereddnsmanager.com are often paired with githubuser.com.
IP Addresses
githubuser.com maps to three IP numbers — 74.206.228.78, 173.239.5.6 and 173.239.8.164.
Among the host names that share IP numbers with githubuser.com are (0x706f726e)bun.com, benchmarkunivers.com, tnetflix.com and two others.
Name Servers
Three name servers handle the delegation for githubuser.com: githubuser.com, ns1.expiereddnsmanager.com and ns2.expiereddnsmanager.com.
githubuser.com has at least partial name server overlap with other domains, such as iclcoud.com, myernursing.com, cams699.com and two others.
ns1.mnsdnsmart.com, ns2.mnsdnsmart.com and ns1.myernursing.com — plus 5 other name servers — are commonly paired with these name servers.
Hosts with three IP address records:
The hostname githubuser.com directs to 74.206.228.78, 173.239.5.6 and 173.239.8.164.
Hosts that resolve to one IP address:
ns1.expiereddnsmanager.com has the IP address 173.239.5.4.
ns2.expiereddnsmanager.com has the IP address 74.206.228.76.
Mail Servers
githubuser.com routes its mail through a single mail server, mx7.githubuser.com.
mx7.githubuser.com directs to just one IP number, 173.239.8.164.