qrstud.io - robtex.com
qrstud.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 116.203.50.115🇩🇪 Hetzner116.203.0.0/16 HETZNER-DC | ||||||
| PTR | qrcode.studio | ||||||
| NS | ns1.your-server.de ⭐ | ||||||
| A | 2a01:4f8:0:1::5ddc:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.your-server.de | ||||||
| A | 213.133.100.102🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | ns1.your-server.de | ||||||
| NS | ns.second-ns.com | ||||||
| A | 2a01:4f8:0:a101::b:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns.second-ns.com | ||||||
| A | 213.239.204.242🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns.second-ns.com | ||||||
| NS | ns3.second-ns.de | ||||||
| A | 2001:67c:192c::add:b3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | ns3.second-ns.de | ||||||
| A | 193.47.99.4🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | ns3.second-ns.de | ||||||
| MX | www111.your-server.de ⭐ | ||||||
| A | 2a01:4f8:d0a:103d::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | www111.your-server.de | ||||||
| A | 188.40.26.204🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1 | ||||||
| PTR | www111.your-server.de | ||||||
| TXT | v=spf1 +a +mx ?all | ||||||
| SOA | ns1.your-server.depostmaster@your-server.de 2026-01-08 #0 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1774475787 | ||||||
Same first word
qrstud.io |
Similar names
DNS History
7 records (5 active, 2 former)
●NSns.second-ns.com2018-06-28 → 2026-03-25 · 2 obs
● 2026-03-25 22:18:42
●NSns1.your-server.de2018-06-28 → 2026-03-25 · 2 obs
● 2026-03-25 22:18:42
●NSns3.second-ns.de2018-06-28 → 2026-03-25 · 2 obs
● 2026-03-25 22:18:42
○MXmail.qrstud.io2018-06-28 → 2018-06-28 · 3 obs
○ 2026-02-26 16:01:52
○ 2026-03-25 22:18:42
●MXwww111.your-server.de2026-02-26 → 2026-03-25 · 3 obs
● 2026-02-26 16:01:52
● 2026-03-25 22:18:42
●A116.203.50.1152026-02-26 → 2026-03-25 · 3 obs
● 2026-02-26 16:01:52
● 2026-03-25 22:18:42
○A195.201.122.1772018-06-28 → 2018-06-28 · 3 obs
○ 2026-02-26 16:01:52
○ 2026-03-25 22:18:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | b0.nic.io, c0.nic.io, a0.nic.io, a2.nic.io | - |
| qrstud.io | ns3.second-ns.de, ns.second-ns.com, ns1.your-server.de | - |
✅ Authoritative Response
Server:193.47.99.4
NS records: ns3.second-ns.de, ns.second-ns.com, ns1.your-server.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for qrstud.io (unsigned zone)
⏱️ Timing
Total: 821ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 116.203.50.115 |
| NS | 3 | ns1.your-server.de, ns3.second-ns.de... |
| MX | 1 | www111.your-server.de (pri: 10) |
| TXT | 1 | v=spf1 +a +mx ?all |
| SOA | 1 | ns1.your-server.de postmaster.your-serve |
Analysis
IP Addresses
qrstud.io points to a single IP number: 116.203.50.115.
Other host names, for instance qrcode.studio and www.qrcode.studio, share IP numbers with qrstud.io.
Name Servers
The domain qrstud.io is delegated to three name servers: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.
qrstud.io shares name servers with other domains at least partially, for instance sameplace.de, smartbase.biz, 3.3.6.c.c.0.c.0.8.f.4.0.1.0.a.2.ip6.arpa, biltong.de and d.5.1.8.2.1.0.c.8.f.4.0.1.0.a.2.ip6.arpa.
Host names with two IP numbers:
ns.second-ns.com points to 2a01:4f8:0:a101::b:1 and 213.239.204.242
ns3.second-ns.de points to 2001:67c:192c::add:b3 and 193.47.99.4
ns1.your-server.de points to 2a01:4f8:0:1::5ddc:1 and 213.133.100.102
Mail Servers
The mail server for qrstud.io is www111.your-server.de.
qrstud.io shares the same mail server setup as other domains, including step-barrier.de, shadowrealminc.com, wundervoll-secondhand.de, thaimatte.de and xfest.org.
Host name www111.your-server.de resolves to two IPs: 2a01:4f8:d0a:103d::2 and 188.40.26.204.