rfsengineering.com - dns.ninja
rfsengineering.com
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=1782589325 | ||||||
Subdomains
www.rfsengineering.com |
Same first word
rfsengineering.com |
Similar names
DNS History
18 records (10 active, 8 former)
●NSns10.dnsmadeeasy.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
●NSns11.dnsmadeeasy.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
●NSns12.dnsmadeeasy.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
●NSns13.dnsmadeeasy.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
●NSns14.dnsmadeeasy.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
●NSns15.dnsmadeeasy.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
○NSns2.cw.net2007-10-22 → 2007-10-22 · 3 obs
○ 2015-07-07 08:07:50
○ 2026-06-27 20:04:02
●NSns20.digicertdns.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
○NSns21.worldnic.com2015-07-07 → 2020-03-06 · 4 obs
● 2015-07-07 08:07:50
● 2020-03-06 01:35:32
○ 2026-06-27 20:04:02
○NSns22.worldnic.com2015-07-07 → 2020-03-06 · 4 obs
● 2015-07-07 08:07:50
● 2020-03-06 01:35:32
○ 2026-06-27 20:04:02
○NSunix.worldpath.net2007-10-22 → 2007-10-22 · 3 obs
○ 2015-07-07 08:07:50
○ 2026-06-27 20:04:02
○MXd184887a.ess.barracudanetworks.com2020-03-06 → 2020-03-06 · 3 obs
● 2020-03-06 01:35:32
○ 2026-06-27 20:04:02
○MXd184887b.ess.barracudanetworks.com2020-03-06 → 2020-03-06 · 3 obs
● 2020-03-06 01:35:32
○ 2026-06-27 20:04:02
○MXmail.rfsengineering.com2007-10-22 → 2017-03-14 · 4 obs
● 2017-03-14 16:51:54
○ 2020-03-06 01:35:32
○ 2026-06-27 20:04:02
●MXus-smtp-inbound-1.mimecast.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
●MXus-smtp-inbound-2.mimecast.com2026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
●A50.63.26.1662026-06-27 → 2026-06-27 · 2 obs
● 2026-06-27 20:04:02
○A64.71.33.1222015-07-07 → 2017-03-14 · 5 obs
● 2015-07-07 08:07:50
● 2017-03-14 16:51:54
○ 2020-03-06 01:35:32
○ 2026-06-27 20:04:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net... | - |
| rfsengineering.com | ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com, ns12.dnsmadeeasy.com, ns13.dnsmadeeasy.com... | 12 records |
✅ Authoritative Response
Server:208.94.148.4
NS records: ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com, ns12.dnsmadeeasy.com, ns13.dnsmadeeasy.com, ns14.dnsmadeeasy.com, ns15.dnsmadeeasy.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rfsengineering.com (unsigned zone)
⏱️ Timing
Total: 206ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 50.63.26.166 |
| NS | 6 | ns11.dnsmadeeasy.com, ns14.dnsmadeeasy.com... |
| MX | 2 | us-smtp-inbound-1.mimecast.com (pri: 0), us-smtp-inbound-2.mimecast.com (pri: 0) |
| TXT | 3 | v=spf1 include:us._netblocks.mimecast.co, MS=ms73629746... |
| SOA | 1 | ns20.digicertdns.com dns.digicertdns.com |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (ns10.dnsmadeeasy.com, ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com...)
Analysis
Hierarchy
www.rfsengineering.com is a subdomain of rfsengineering.com.
IP Addresses
rfsengineering.com has exactly one IP address — 50.63.26.166.
www.rfsengineering.com and 166.26.63.50.host.secureserver.net are among other host names that share IP numbers with rfsengineering.com.
Name Servers
rfsengineering.com delegates authority to 7 name servers: ns20.digicertdns.com, ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com plus 4 other.
The name servers of rfsengineering.com overlap at least partially with those of other domains — among them terminalx.com, firstbankkansas.com, uaig.net and two more.
These name servers commonly appear in delegations together with ns12.dnsmadeeasy.com, ns13.dnsmadeeasy.com, ns14.dnsmadeeasy.com and 6 other.
Host names pointing to two IP addresses:
ns20.digicertdns.com directs traffic to 208.94.148.223 and 2600:1800:10::1:1f.
ns10.dnsmadeeasy.com directs traffic to 208.94.148.4 and 2600:1800:10::1.
ns11.dnsmadeeasy.com directs traffic to 208.80.124.4 and 2600:1801:11::1.
ns12.dnsmadeeasy.com directs traffic to 208.80.126.4 and 2600:1802:12::1.
ns13.dnsmadeeasy.com directs traffic to 208.80.125.4 and 2600:1801:13::1.
ns14.dnsmadeeasy.com directs traffic to 208.80.127.4 and 2600:1802:14::1.
ns15.dnsmadeeasy.com directs traffic to 208.94.149.4 and 2600:1800:15::1.
Mail Servers
rfsengineering.com uses two mail servers, us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
The mail server setup of rfsengineering.com matches that of other domains such as diversityjanesville.com, ambfo.com, ofsbrands.com and two others.
At least some of the mail servers used by rfsengineering.com are shared with other domains: coresite.com, aerointegrated.com, chemtron.ca and two others among them.
Hosts with 6 IP addresses each:
Hostname us-smtp-inbound-1.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.
Hostname us-smtp-inbound-2.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.
Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.141 IP addresses each.
Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.221 IP addresses each.
Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.242 IP addresses each.
Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.141 IP addresses each.
Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.221 IP addresses each.
Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.242 IP addresses each.