lessondelivery.com - robtex.com
lessondelivery.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.4.73.228🇪🇪 PAGM-AS185.4.73.0/24 PAGM routed network | ||||||
| PTR | mail.lessondelivery.com | ||||||
| NS | dns.fastdns24.com ⭐ | ||||||
| A | 2001:41d0:1004:3000::2🇫🇷 OVH2001:41d0::/32 IPv6 | ||||||
| A | 176.31.3.154🇫🇷 OVH176.31.0.0/16 ISP Paris, France | ||||||
| PTR | dns.fastdns24.com | ||||||
| NS | dns2.fastdns24.org | ||||||
| A | 2a01:5a60:5::63🇷🇺 OOOVPS-AS2a01:5a60::/32 VPS IPv6 routed network | ||||||
| PTR | s23be981c.fastvps-server.com | ||||||
| A | 5.188.30.150🇷🇺 OOOVPS-AS5.188.30.0/24 VPS routed network | ||||||
| NS | dns3.fastdns24.eu | ||||||
| A | 2a01:4f8:212:c16::4🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | dns3.fastdns24.eu | ||||||
| A | 136.243.223.232🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | dns3.fastdns24.eu | ||||||
| NS | dns4.fastdns24.link | ||||||
| A | 2a01:4f9:2a:195a::4🇩🇪 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK | ||||||
| PTR | dns4.fastdns24.link | ||||||
| A | 95.216.25.5🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC | ||||||
| PTR | dns4.fastdns24.link | ||||||
| MX | mail.lessondelivery.com ⭐ | ||||||
| A | 185.4.73.228🇪🇪 PAGM-AS185.4.73.0/24 PAGM routed network | ||||||
| PTR | mail.lessondelivery.com | ||||||
| TXT | v=spf1 ip4:185.4.73.228 a mx ~all | ||||||
| SOA | dns.fastdns24.comsupport@fastvps.hosting 2026-05-21 #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=1783760867 | ||||||
Subdomains
mail.lessondelivery.com |
Same first word
lessondelivery.org |
lessondelivery.com |
DNS History
6 records (6 active, 0 former)
●NSdns.fastdns24.com2026-04-30 → 2026-07-11 · 2 obs
● 2026-07-11 09:10:04
●NSdns2.fastdns24.org2026-04-30 → 2026-07-11 · 2 obs
● 2026-07-11 09:10:04
●NSdns3.fastdns24.eu2026-04-30 → 2026-07-11 · 2 obs
● 2026-07-11 09:10:04
●NSdns4.fastdns24.link2026-04-30 → 2026-07-11 · 2 obs
● 2026-07-11 09:10:04
●MXmail.lessondelivery.com2026-04-30 → 2026-07-11 · 2 obs
● 2026-07-11 09:10:04
●A185.4.73.2282026-04-30 → 2026-07-11 · 2 obs
● 2026-07-11 09:10:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| lessondelivery.com | dns.fastdns24.com, dns2.fastdns24.org, dns3.fastdns24.eu, dns4.fastdns24.link | 1 record |
✅ Authoritative Response
Server:95.216.25.5
NS records: dns.fastdns24.com, dns2.fastdns24.org, dns3.fastdns24.eu, dns4.fastdns24.link
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lessondelivery.com (unsigned zone)
⏱️ Timing
Total: 3609ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.4.73.228 |
| NS | 4 | dns4.fastdns24.link, dns.fastdns24.com... |
| MX | 1 | mail.lessondelivery.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:185.4.73.228 a mx ~all |
| SOA | 1 | dns.fastdns24.com support.fastvps.hostin |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (dns.fastdns24.com)
Analysis
Hierarchy
mail.lessondelivery.com is delegated beneath lessondelivery.com.
IP Addresses
lessondelivery.com resolves to just one IP address, 185.4.73.228.
Among the host names that share IP numbers with lessondelivery.com is mail.lessondelivery.com, as one example.
Name Servers
The NS records for lessondelivery.com point to four name servers: dns.fastdns24.com, dns3.fastdns24.eu, dns4.fastdns24.link and dns2.fastdns24.org.
There is at least partial name server overlap between lessondelivery.com and other domains — aura66.ru, elefun-desktops.ru, fitstars.online and two more among them.
These name servers regularly appear alongside dns2.dns-root.org, dns3.dns-root.pro, dns1.dns-root.ru and 3 other name servers in NS record sets.
All four hostnames — dns.fastdns24.com, dns3.fastdns24.eu, dns4.fastdns24.link and dns2.fastdns24.org — resolve to two IP numbers apiece: dns.fastdns24.com to 176.31.3.154 and 2001:41d0:1004:3000::2; dns3.fastdns24.eu to 136.243.223.232 and 2a01:4f8:212:c16::4; dns4.fastdns24.link to 95.216.25.5 and 2a01:4f9:2a:195a::4; dns2.fastdns24.org to 5.188.30.150 and 2a01:5a60:5::63.
Mail Servers
The sole mail server for lessondelivery.com is mail.lessondelivery.com.
mail.lessondelivery.com resolves to 185.4.73.228 and no other IP number.