tutorialesbitcoin.com - robtex.com
tutorialesbitcoin.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.91.107.203🇫🇷 OVH51.91.0.0/16 | ||||||
| PTR | cpseo5.eu | ||||||
| NS | dns1.sered.net ⭐ | ||||||
| A | 185.37.231.10🇪🇸 ASN-XTUDIONET185.37.231.0/24 | ||||||
| PTR | dns1.sered.net | ||||||
| NS | dns2.sered.net | ||||||
| A | 46.175.128.146🇪🇸 ASN-XTUDIONET46.175.128.0/24 | ||||||
| PTR | dns2.sered.net | ||||||
| NS | dns3.sered.net | ||||||
| A | 193.84.177.223🇪🇸 ASN-XTUDIONET193.84.177.0/24 | ||||||
| PTR | dns3.sered.net | ||||||
| NS | dns4.sered.net | ||||||
| A | 193.84.177.125🇪🇸 ASN-XTUDIONET193.84.177.0/24 | ||||||
| PTR | dns4.sered.net | ||||||
| MX | tutorialesbitcoin.com ⭐ | ||||||
| A | 51.91.107.203🇫🇷 OVH51.91.0.0/16 | ||||||
| PTR | cpseo5.eu | ||||||
| TXT | v=spf1 +a +mx +ip4:51.91.107.203 include:_spf.gestiondeservidor.net +ip4:51.6... | ||||||
| SOA | dns1.sered.netalertas@sered.cloud 2026-09-24 #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=1790479214 | ||||||
MX for
tutorialesbitcoin.com |
Same first word
tutorialesbitcoin.com |
Previous names
Next names
DNS History
9 records (6 active, 3 former)
●NSdns1.sered.net2026-09-25 → 2026-09-27 · 3 obs
● 2026-09-25 01:05:22
● 2026-09-27 03:45:00
●NSdns2.sered.net2026-09-25 → 2026-09-27 · 3 obs
● 2026-09-25 01:05:22
● 2026-09-27 03:45:00
●NSdns3.sered.net2026-09-25 → 2026-09-27 · 3 obs
● 2026-09-25 01:05:22
● 2026-09-27 03:45:00
●NSdns4.sered.net2026-09-25 → 2026-09-27 · 3 obs
● 2026-09-25 01:05:22
● 2026-09-27 03:45:00
○NSeurope1130.banahosting.com2017-11-16 → 2017-11-16 · 3 obs
○ 2026-09-25 01:05:22
○ 2026-09-27 03:45:00
○NSeurope1131.banahosting.com2017-11-16 → 2017-11-16 · 3 obs
○ 2026-09-25 01:05:22
○ 2026-09-27 03:45:00
●MXtutorialesbitcoin.com2017-11-16 → 2026-09-27 · 2 obs
● 2026-09-27 03:45:00
○A212.18.232.692017-11-16 → 2017-11-16 · 3 obs
○ 2026-09-25 01:05:22
○ 2026-09-27 03:45:00
●A51.91.107.2032026-09-25 → 2026-09-27 · 3 obs
● 2026-09-25 01:05:22
● 2026-09-27 03:45:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| tutorialesbitcoin.com | dns3.sered.net, dns4.sered.net, dns1.sered.net, dns2.sered.net | - |
✅ Authoritative Response
Server:193.84.177.223
NS records: dns3.sered.net, dns4.sered.net, dns1.sered.net, dns2.sered.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tutorialesbitcoin.com (unsigned zone)
⏱️ Timing
Total: 1337ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.91.107.203 |
| NS | 4 | dns4.sered.net, dns2.sered.net... |
| MX | 1 | tutorialesbitcoin.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:51.91.107.203 include |
| SOA | 1 | dns1.sered.net alertas.sered.cloud |
Analysis
Mail Server Role
tutorialesbitcoin.com acts as its own mail server.
IP Addresses
tutorialesbitcoin.com points to a single IP number: 51.91.107.203.
Additional host names — cerrajerossagradafamilia.es, adydermamedical.com, holisticospanatural.com and two others — share IP numbers with tutorialesbitcoin.com.
Name Servers
tutorialesbitcoin.com has four authoritative name servers: dns1.sered.net, dns2.sered.net, dns3.sered.net and dns4.sered.net.
tutorialesbitcoin.com partially shares its NS delegation with several other domains, including enjoysicily.org, arenabrand.es, carpinteriarodriguezfernandez.com and two others.
dns1.sered.net, dns2.sered.net, dns3.sered.net and dns4.sered.net each resolve to one IP address: dns1.sered.net resolves to 185.37.231.10, dns2.sered.net resolves to 46.175.128.146, dns3.sered.net resolves to 193.84.177.223 and dns4.sered.net resolves to 193.84.177.125.
Mail Servers
tutorialesbitcoin.com has a single mail server: tutorialesbitcoin.com itself.
tutorialesbitcoin.com points to one IP number — 51.91.107.203.