0calc.com - robtex.com
0calc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.13.12.137🇩🇪 Hetzner49.13.0.0/16 HETZNER-DC | ||||||
| PTR | static.137.12.13.49.clients.your-server.de | ||||||
| A | 168.119.251.111🇩🇪 Hetzner168.119.0.0/16 HETZNER-DC | ||||||
| NS | hydrogen.ns.hetzner.com ⭐ | ||||||
| A | 2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| A | 213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| NS | helium.ns.hetzner.de | ||||||
| A | 2001:67c:192c::add:5🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| A | 193.47.99.5🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| NS | oxygen.ns.hetzner.com | ||||||
| A | 2a01:4f8:0:1::add:2992🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| A | 88.198.229.192🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| TXT | amazonses:5DdpJ/EGVsg0tyVmF6OmpPm/EVX/m4V9/6/QtclJuqU= | ||||||
| SOA | hydrogen.ns.hetzner.comdns@hetzner.com 2025-12-30 #9 | ||||||
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=1774538762 | ||||||
rank #72842 in the tld
WOT: SAFE (62/100)
📈 Tranco rank: #236,132
Subdomains
web2.0calc.com |
Same first word
DNS History
12 records (5 active, 7 former)
●NShelium.ns.hetzner.de2026-02-17 → 2026-03-26 · 3 obs
● 2026-02-17 06:02:08
● 2026-03-26 15:33:44
●NShydrogen.ns.hetzner.com2026-02-17 → 2026-03-26 · 3 obs
● 2026-02-17 06:02:08
● 2026-03-26 15:33:44
○NSns-1223.awsdns-24.org2015-08-31 → 2020-02-13 · 4 obs
● 2020-02-13 04:53:16
○ 2026-02-17 06:02:08
○ 2026-03-26 15:33:44
○NSns-1960.awsdns-53.co.uk2015-08-31 → 2020-02-13 · 4 obs
● 2020-02-13 04:53:16
○ 2026-02-17 06:02:08
○ 2026-03-26 15:33:44
○NSns-349.awsdns-43.com2015-08-31 → 2020-02-13 · 4 obs
● 2020-02-13 04:53:16
○ 2026-02-17 06:02:08
○ 2026-03-26 15:33:44
○NSns-613.awsdns-12.net2015-08-31 → 2020-02-13 · 4 obs
● 2020-02-13 04:53:16
○ 2026-02-17 06:02:08
○ 2026-03-26 15:33:44
●NSoxygen.ns.hetzner.com2026-02-17 → 2026-03-26 · 3 obs
● 2026-02-17 06:02:08
● 2026-03-26 15:33:44
○A116.202.113.2452020-02-13 → 2020-02-13 · 4 obs
● 2020-02-13 04:53:16
○ 2026-02-17 06:02:08
○ 2026-03-26 15:33:44
●A168.119.251.1112026-02-17 → 2026-03-26 · 3 obs
● 2026-02-17 06:02:08
● 2026-03-26 15:33:44
○A209.126.117.1012015-08-31 → 2017-04-20 · 13 obs
● 2015-10-04 07:30:22
○ 2015-11-04 07:12:02
● 2015-11-14 14:47:36
● 2015-11-29 20:15:44
○ 2015-12-18 02:00:22
○ 2016-02-25 04:37:06
● 2016-05-03 18:38:08
○ 2017-02-05 15:45:42
● 2017-02-12 10:09:08
● 2017-04-20 20:37:42
○ 2020-02-13 04:53:16
○ 2026-03-26 15:33:44
●A49.13.12.1372026-02-17 → 2026-03-26 · 3 obs
● 2026-02-17 06:02:08
● 2026-03-26 15:33:44
○A5.9.149.342015-11-04 → 2017-02-12 · 11 obs
● 2015-11-04 07:12:02
○ 2015-11-14 14:47:36
○ 2015-11-29 20:15:44
● 2015-12-18 02:00:22
● 2016-02-25 04:37:06
○ 2016-05-03 18:38:08
● 2017-02-05 15:45:42
● 2017-02-12 10:09:08
○ 2020-02-13 04:53:16
○ 2026-03-26 15:33:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 0calc.com | helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com | 2 records |
✅ Authoritative Response
Server:193.47.99.5
NS records: helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 0calc.com (unsigned zone)
⏱️ Timing
Total: 567ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 49.13.12.137, 168.119.251.111 |
| NS | 3 | helium.ns.hetzner.de, hydrogen.ns.hetzner.com... |
| TXT | 1 | amazonses:5DdpJ/EGVsg0tyVmF6OmpPm/EVX/m4 |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com)
Analysis
Hierarchy
web2.0calc.com is a child of 0calc.com.
IP Addresses
0calc.com has two IP numbers: 49.13.12.137 and 168.119.251.111.
Other host names, for instance 0calc.ru, web2.0calc.de, www.0calc.ru, web2.0rechner.de and www.web2.0rechner.de share IP numbers with 0calc.com.
Name Servers
0calc.com is delegated to three name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
0calc.com at least partially shares name servers with other domains, including nettrip.org, balkanviva.com, elgarito.com, tweetor.de and merken.at.
These name servers are often used with ns1.your-server.de and ns1.first-ns.de.
Host names with two IP numbers:
hydrogen.ns.hetzner.com: 2a01:4f8:0:1::add:1098 and 213.133.100.98
oxygen.ns.hetzner.com: 2a01:4f8:0:1::add:2992 and 88.198.229.192