grub2u.com - robtex.com
grub2u.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.48.173.10🇺🇸 PEGTECHINC38.48.128.0/18 | ||||||
| NS | a2.share-dns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | a.share-dns.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.share-dns.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b2.share-dns.net ⚠️ Not in parent delegation | ||||||
| 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=1765102277 | ||||||
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=1774874797 | ||||||
Subdomains
smtp.grub2u.com |
DNS History
17 records (5 active, 12 former)
●NSa.share-dns.com2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 12:56:18
●NSa2.share-dns.com2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 12:56:18
●NSb.share-dns.net2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 12:56:18
●NSb2.share-dns.net2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 12:56:18
○NSlocalhost2017-01-16 → 2017-01-16 · 4 obs
● 2017-01-16 06:44:06
○ 2018-08-23 00:17:08
○ 2026-03-30 12:56:18
○NSns1.mytrafficmanagement.com2017-01-16 → 2017-01-16 · 4 obs
● 2017-01-16 06:44:06
○ 2018-08-23 00:17:08
○ 2026-03-30 12:56:18
○NSns1.reg.cn2018-08-23 → 2018-08-23 · 3 obs
● 2018-08-23 00:17:08
○ 2026-03-30 12:56:18
○NSns1.vidahost.com2015-08-07 → 2016-04-03 · 4 obs
● 2016-04-03 15:28:50
○ 2016-06-09 05:01:50
○ 2026-03-30 12:56:18
○NSns2.mytrafficmanagement.com2017-01-16 → 2017-01-16 · 4 obs
● 2017-01-16 06:44:06
○ 2018-08-23 00:17:08
○ 2026-03-30 12:56:18
○NSns2.reg.cn2018-08-23 → 2018-08-23 · 3 obs
● 2018-08-23 00:17:08
○ 2026-03-30 12:56:18
○NSns2.vidahost.com2015-08-07 → 2016-04-03 · 4 obs
● 2016-04-03 15:28:50
○ 2016-06-09 05:01:50
○ 2026-03-30 12:56:18
○NSns3.vidahost.com2015-08-07 → 2016-04-03 · 4 obs
● 2016-04-03 15:28:50
○ 2016-06-09 05:01:50
○ 2026-03-30 12:56:18
○MXgrub2u.com2015-08-07 → 2016-04-03 · 4 obs
● 2016-04-03 15:28:50
○ 2016-06-09 05:01:50
○ 2026-03-30 12:56:18
○A104.130.124.962017-01-16 → 2017-01-16 · 4 obs
● 2017-01-16 06:44:06
○ 2018-08-23 00:17:08
○ 2026-03-30 12:56:18
○A104.217.102.862018-08-23 → 2018-08-23 · 3 obs
● 2018-08-23 00:17:08
○ 2026-03-30 12:56:18
●A38.48.173.102026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 12:56:18
○A91.146.104.2092015-08-07 → 2016-04-03 · 4 obs
● 2016-04-03 15:28:50
○ 2016-06-09 05:01:50
○ 2026-03-30 12:56:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net... | - |
| grub2u.com | b2.share-dns.net, a2.share-dns.com | 1 record |
✅ Authoritative Response
Server:172.64.52.239
NS records: b2.share-dns.net, a2.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for grub2u.com (unsigned zone)
⏱️ Timing
Total: 85ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.48.173.10 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (a2.share-dns.com)
Analysis
Hierarchy
smtp.grub2u.com is a child of grub2u.com.
IP Addresses
grub2u.com resolves to one IP number: 38.48.173.10.
Other host names, for instance whosee.net, mail6688.com, laartgirls.com, www.laartgirls.com and www.whosee.net share IP numbers with grub2u.com.
Name Servers
grub2u.com delegates to four name servers: a2.share-dns.com, a.share-dns.com, b2.share-dns.net and b.share-dns.net.
grub2u.com at least partially shares name servers with other domains, including wxsowa.com, ztmir.com, liyahe.com, thumbgym668.com and blwys.com.
These name servers are commonly used with a10.share-dns.com, b10.share-dns.net, a7.share-dns.com, b7.share-dns.net, a9.share-dns.com, b9.share-dns.net, a11.share-dns.com, b11.share-dns.net, a3.share-dns.com and b3.share-dns.net.
Host names with one IP number:
a2.share-dns.com and a.share-dns.com point to 172.64.53.25.
b2.share-dns.net and b.share-dns.net point to 172.64.52.239.
Host names that point to 172.64.53.25: a2.share-dns.com and a.share-dns.com.
Host names that point to 172.64.52.239: b2.share-dns.net and b.share-dns.net.