firstos.com - dns.ninja
firstos.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 142.4.204.181🇨🇦 OVH142.4.192.0/19 Hosting route | ||||||
| PTR | mxgw.r4l.com | ||||||
| NS | ns1.r4l.com ⭐ | ||||||
| A | 2607:5300:60:34bf::1🇨🇦 OVH2607:5300::/32 Hosting route | ||||||
| A | 142.4.204.181🇨🇦 OVH142.4.192.0/19 Hosting route | ||||||
| PTR | mxgw.r4l.com | ||||||
| NS | ns2.r4l.com | ||||||
| A | 2600:3c03::f03c:91ff:fe93:e369🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies | ||||||
| PTR | ns2.r4l.com | ||||||
| A | 66.228.40.6🇺🇸 AKAMAI-LINODE-AP66.228.32.0/20 Akamai Technologies | ||||||
| PTR | ns2.r4l.com | ||||||
| MX | mx1.r4l.com ⭐ | ||||||
| A | 192.99.3.191🇨🇦 OVH192.99.0.0/16 Hosting route | ||||||
| PTR | smtp.r4l.com | ||||||
| MX | mx2.r4l.com ⭐ | ||||||
| A | 192.99.3.191🇨🇦 OVH192.99.0.0/16 Hosting route | ||||||
| PTR | smtp.r4l.com | ||||||
| MX | mx3.r4l.com ⭐ | ||||||
| A | 192.99.3.191🇨🇦 OVH192.99.0.0/16 Hosting route | ||||||
| PTR | smtp.r4l.com | ||||||
| TXT | v=spf1 redirect=vhost.r4l.com | ||||||
| SOA | ns1.r4l.comsupport@register4less.com 2019-12-03 #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=1786758714 | ||||||
Same first word
firstos.com |
Similar names
DNS History
6 records (6 active, 0 former)
●A142.4.204.1812015-06-23 → 2026-08-15 · 2 obs
● 2026-08-15 01:59:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| firstos.com | ns1.r4l.com, ns2.r4l.com | 4 records |
✅ Authoritative Response
Server:66.228.40.6
NS records: ns1.r4l.com, ns2.r4l.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for firstos.com (unsigned zone)
⏱️ Timing
Total: 218ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 142.4.204.181 |
| NS | 2 | ns2.r4l.com, ns1.r4l.com |
| MX | 3 | mx1.r4l.com (pri: 10), mx2.r4l.com (pri: 10)... |
| TXT | 1 | v=spf1 redirect=vhost.r4l.com |
| SOA | 1 | ns1.r4l.com support.register4less.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.r4l.com, ns1.r4l.com, ns2.r4l.com...)
Analysis
IP Addresses
firstos.com resolves to one IP address: 142.4.204.181.
herolist.com, buhrle.net, seniordiscountstores.com and two other host names share IP numbers with firstos.com.
Name Servers
firstos.com uses two name servers for its delegation: ns1.r4l.com and ns2.r4l.com.
firstos.com uses the same name servers as several other domains — among them mxhelpdesk.com, thelab.info, golemon.com and two more.
At least some of firstos.com's name servers are also used by other domains, among them ieni.com.
The two host names ns1.r4l.com and ns2.r4l.com each have a pair of IP addresses: ns1.r4l.com has 142.4.204.181 and 2607:5300:60:34bf::1, and ns2.r4l.com has 66.228.40.6 and 2600:3c03::f03c:91ff:fe93:e369.
Mail Servers
The MX records for firstos.com list three mail servers: mx1.r4l.com, mx2.r4l.com and mx3.r4l.com.
firstos.com has at least partial mail server overlap with other domains such as thenewsocialworker.com, lisaandmatt.net, a1z.com and two more.
mx1.r4l.com resolves to 192.99.3.191, and so do mx2.r4l.com and mx3.r4l.com — all three share that one IP address.
The host names mx1.r4l.com, mx2.r4l.com and mx3.r4l.com each resolve to 192.99.3.191.