robustgroup.com - dns.ninja
robustgroup.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 68.66.226.121🇺🇸 A2HOSTING68.66.224.0/20 A2 Hosting, Inc. | ||||||
| PTR | az1-ss105.a2hosting.com | ||||||
| NS | ns1.a2hosting.com ⭐ | ||||||
| A | 13.248.158.180🇺🇸 Amazon13.248.144.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns2.a2hosting.com | ||||||
| A | 75.2.118.134🇺🇸 Amazon75.2.112.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| NS | ns3.a2hosting.com | ||||||
| A | 76.223.26.245🇺🇸 Amazon76.223.16.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns4.a2hosting.com | ||||||
| A | 99.83.147.209🇺🇸 Amazon99.83.144.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| MX | mail.robustgroup.com ⭐ | ||||||
| A | 68.66.226.121🇺🇸 A2HOSTING68.66.224.0/20 A2 Hosting, Inc. | ||||||
| PTR | az1-ss105.a2hosting.com | ||||||
| TXT | v=spf1 +a +mx +ip4:68.66.226.121 include:spf.a2hosting.com ~all | ||||||
| SOA | ns1.a2hosting.comroot@az1-ss105.a2hosting.com 2026-07-27 #3 | ||||||
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=1785986449 | ||||||
Subdomains
mail.robustgroup.com |
Same first word
robustgroup.com |
Similar names
DNS History
15 records (6 active, 9 former)
○NSjay.ns.cloudflare.com2020-01-16 → 2020-01-16 · 4 obs
● 2020-01-16 10:19:36
○ 2026-03-01 22:22:16
○ 2026-08-06 03:45:24
●NSns1.a2hosting.com2026-03-01 → 2026-08-06 · 3 obs
● 2026-03-01 22:22:16
● 2026-08-06 03:45:24
○NSns1.hostek.com2015-06-18 → 2017-02-19 · 4 obs
● 2017-02-19 10:33:24
○ 2020-01-16 10:19:36
○ 2026-08-06 03:45:24
●NSns2.a2hosting.com2026-03-01 → 2026-08-06 · 3 obs
● 2026-03-01 22:22:16
● 2026-08-06 03:45:24
○NSns2.hostek.com2015-06-18 → 2017-02-19 · 4 obs
● 2017-02-19 10:33:24
○ 2020-01-16 10:19:36
○ 2026-08-06 03:45:24
●NSns3.a2hosting.com2026-03-01 → 2026-08-06 · 3 obs
● 2026-03-01 22:22:16
● 2026-08-06 03:45:24
●NSns4.a2hosting.com2026-03-01 → 2026-08-06 · 3 obs
● 2026-03-01 22:22:16
● 2026-08-06 03:45:24
○NSruth.ns.cloudflare.com2020-01-16 → 2020-01-16 · 4 obs
● 2020-01-16 10:19:36
○ 2026-03-01 22:22:16
○ 2026-08-06 03:45:24
●MXmail.robustgroup.com2015-06-18 → 2026-08-06 · 5 obs
● 2020-01-16 10:19:36
○ 2026-07-30 14:21:54
● 2026-07-31 04:36:04
● 2026-08-06 03:45:24
○A104.27.150.1032020-01-16 → 2020-01-16 · 4 obs
● 2020-01-16 10:19:36
○ 2026-03-01 22:22:16
○ 2026-08-06 03:45:24
○A104.27.151.1032020-01-16 → 2020-01-16 · 4 obs
● 2020-01-16 10:19:36
○ 2026-03-01 22:22:16
○ 2026-08-06 03:45:24
○A216.15.207.22015-06-18 → 2017-02-19 · 4 obs
● 2017-02-19 10:33:24
○ 2020-01-16 10:19:36
○ 2026-08-06 03:45:24
○A2606:4700:3037::681b:96672020-01-16 → 2020-01-16 · 4 obs
● 2020-01-16 10:19:36
○ 2026-03-01 22:22:16
○ 2026-08-06 03:45:24
○A2606:4700:3037::681b:97672020-01-16 → 2020-01-16 · 4 obs
● 2020-01-16 10:19:36
○ 2026-03-01 22:22:16
○ 2026-08-06 03:45:24
●A68.66.226.1212026-03-01 → 2026-08-06 · 5 obs
● 2026-03-01 22:22:16
○ 2026-07-30 14:21:54
● 2026-07-31 04:36:04
● 2026-08-06 03:45:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| robustgroup.com | ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com | 4 records |
✅ Authoritative Response
Server:99.83.147.209
NS records: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for robustgroup.com (unsigned zone)
⏱️ Timing
Total: 1001ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 68.66.226.121 |
| NS | 4 | ns4.a2hosting.com, ns3.a2hosting.com... |
| MX | 1 | mail.robustgroup.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:68.66.226.121 include |
| SOA | 1 | ns1.a2hosting.com root.az1-ss105.a2hosti |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com...)
Analysis
Hierarchy
mail.robustgroup.com is delegated beneath robustgroup.com.
IP Addresses
robustgroup.com has exactly one IP address — 68.66.226.121.
cloverfinancialloans.com, mail.motolectric.com, mail.notesnetwork.net plus two other host names have IP numbers in common with robustgroup.com.
Name Servers
Four name servers handle the delegation for robustgroup.com: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
There is at least partial name server overlap between robustgroup.com and other domains — all-liver.com, quiltingstudio.com, thejobstream.com and two more among them.
These name servers regularly appear alongside ns1.supercp.com, ns2.supercp.com, ns1.mysecurecloudhost.com and 5 other name servers in NS record sets.
Four host names, each with one IP address: ns1.a2hosting.com has 13.248.158.180, ns2.a2hosting.com has 75.2.118.134, ns3.a2hosting.com has 76.223.26.245 and ns4.a2hosting.com has 99.83.147.209.
Mail Servers
robustgroup.com uses one mail server — mail.robustgroup.com.
mail.robustgroup.com has exactly one IP number: 68.66.226.121.