callculus.com - robtex.com
callculus.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 70.32.23.118🇺🇸 A2HOSTING70.32.16.0/20 A2 Hosting, Inc. | ||||||
| PTR | mi3-ts102.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.callculus.com ⭐ | ||||||
| A | 70.32.23.118🇺🇸 A2HOSTING70.32.16.0/20 A2 Hosting, Inc. | ||||||
| PTR | mi3-ts102.a2hosting.com | ||||||
| TXT | v=spf1 +a +mx +ip4:70.32.23.118 include:spf.a2hosting.com ~all | ||||||
| SOA | ns1.a2hosting.comroot@mi3-ts102.a2hosting.com 2026-02-21 #1 | ||||||
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=1771291435 | ||||||
DNS History
10 records (6 active, 4 former)
○NSns0.transip.net2015-05-20 → 2016-07-14 · 4 obs
● 2016-07-14 16:18:24
○ 2017-05-29 21:53:18
○ 2026-03-14 23:31:14
●NSns1.a2hosting.com2026-03-14 → 2026-03-14 · 2 obs
● 2026-03-14 23:31:14
○NSns1.transip.nl2015-05-20 → 2016-07-14 · 4 obs
● 2016-07-14 16:18:24
○ 2017-05-29 21:53:18
○ 2026-03-14 23:31:14
●NSns2.a2hosting.com2026-03-14 → 2026-03-14 · 2 obs
● 2026-03-14 23:31:14
○NSns2.transip.eu2015-05-20 → 2016-07-14 · 4 obs
● 2016-07-14 16:18:24
○ 2017-05-29 21:53:18
○ 2026-03-14 23:31:14
●NSns3.a2hosting.com2026-03-14 → 2026-03-14 · 2 obs
● 2026-03-14 23:31:14
●NSns4.a2hosting.com2026-03-14 → 2026-03-14 · 2 obs
● 2026-03-14 23:31:14
●MXmail.callculus.com2026-03-14 → 2026-03-14 · 1 obs
○A178.79.150.1202015-05-20 → 2016-07-14 · 4 obs
● 2016-07-14 16:18:24
○ 2017-05-29 21:53:18
○ 2026-03-14 23:31:14
●A70.32.23.1182026-03-14 → 2026-03-14 · 2 obs
● 2026-03-14 23:31:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net... | - |
| callculus.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 callculus.com (unsigned zone)
⏱️ Timing
Total: 153ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 70.32.23.118 |
| NS | 4 | ns2.a2hosting.com, ns4.a2hosting.com... |
| MX | 1 | mail.callculus.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:70.32.23.118 include: |
| SOA | 1 | ns1.a2hosting.com root.mi3-ts102.a2hosti |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com...)
Analysis
IP Addresses
callculus.com resolves to a single IP address: 70.32.23.118.
Other host names including villaspuertoviejo.com, lifewithoutchallenges.com, mail.samsservicescl.com, computercare.com and doallplastic.com share IP numbers with callculus.com.
Name Servers
callculus.com is delegated to four name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
callculus.com at least partially shares name servers with other domains, including 521northrobinwood.com, sundaebuffet.com, joinseeds.earth, politi.com.br and a2zcontrolsystem.com.
these name servers are commonly used together with ns1.supercp.com, ns2.supercp.com and ns3.supercp.com.
Hostnames with a single IP:
ns1.a2hosting.com points to 13.248.158.180
ns2.a2hosting.com points to 75.2.118.134
ns3.a2hosting.com points to 76.223.26.245
ns4.a2hosting.com points to 99.83.147.209
Mail Servers
callculus.com is handled by a single mail server, mail.callculus.com.
mail.callculus.com points to a single IP: 70.32.23.118.