rtfc.net - dns.ninja
rtfc.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 205.229.101.11🇺🇸 AS21759205.229.101.0/24 Shentel Service company - Edinburg VA=20 | ||||||
| NS | udns1.ultradns.net ⭐ | ||||||
| A | 2001:502:f3ff::d🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | udns1.ultradns.net | ||||||
| A | 204.69.234.1🇺🇸 MAINT-ID-12008204.69.234.0/24 Neustar | ||||||
| PTR | udns1.ultradns.net | ||||||
| NS | udns2.ultradns.net | ||||||
| A | 2610:a1:1014::d🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | udns2.ultradns.net | ||||||
| A | 204.74.101.1🇺🇸 MAINT-ID-12008204.74.101.0/24 Neustar | ||||||
| PTR | udns2.ultradns.net | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | udns1.ultradns.netdoug\@healy.nrucfc.coop 2012-10-29 #68 | ||||||
net
| 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=1784969032 | ||||||
Same first word
Similar names
DNS History
6 records (3 active, 3 former)
●NSudns1.ultradns.net2015-07-13 → 2026-07-25 · 2 obs
● 2026-07-25 08:48:30
●NSudns2.ultradns.net2015-07-13 → 2026-07-25 · 2 obs
● 2026-07-25 08:48:30
○MXmail.nrucfc.org2015-07-13 → 2017-07-07 · 4 obs
● 2017-07-07 14:50:00
○ 2026-03-15 20:42:22
○ 2026-07-25 08:48:30
●A205.229.101.112026-03-15 → 2026-07-25 · 3 obs
● 2026-03-15 20:42:22
● 2026-07-25 08:48:30
○A205.229.101.1252016-01-26 → 2016-01-28 · 5 obs
● 2016-01-26 04:32:34
● 2016-01-28 01:54:44
○ 2016-04-25 00:42:32
○ 2026-07-25 08:48:30
○A205.229.101.1502015-07-13 → 2017-07-07 · 8 obs
● 2015-12-22 12:37:20
○ 2016-01-26 04:32:34
○ 2016-01-28 01:54:44
● 2016-04-25 00:42:32
● 2017-07-07 14:50:00
○ 2026-03-15 20:42:22
○ 2026-07-25 08:48:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net... | - |
| rtfc.net | udns1.ultradns.net, udns2.ultradns.net | 4 records |
✅ Authoritative Response
Server:204.74.101.1
NS records: udns1.ultradns.net, udns2.ultradns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rtfc.net (unsigned zone)
⏱️ Timing
Total: 184ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 205.229.101.11 |
| NS | 2 | udns1.ultradns.net, udns2.ultradns.net |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | udns1.ultradns.net doug\.healy.nrucfc.co |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (udns1.ultradns.net, udns1.ultradns.net, udns2.ultradns.net...)
Analysis
IP Addresses
rtfc.net directs to one IP number, which is 205.229.101.11.
The host names cfcforum.org, cfcconferences.org, cooperativefinancecorporation.com and nrucfc.org all share IP numbers with rtfc.net.
Name Servers
DNS delegation for rtfc.net points to two name servers: udns1.ultradns.net and udns2.ultradns.net.
rtfc.net has the same name server delegation as a number of other domains, such as panjandrum.org, 98.142.79.4.in-addr.arpa, textiq.com and two more.
There is at least partial name server overlap between rtfc.net and other domains — mycuservices.net, 86.154.156.in-addr.arpa, cronicchryslerjeepdodge.com and two more among them.
These name servers regularly appear alongside pdns1.ultradns.net, pdns2.ultradns.net, pdns5.ultradns.info and 5 other name servers in NS record sets.
udns1.ultradns.net directs to 204.69.234.1 and 2001:502:f3ff::d. udns2.ultradns.net directs to 204.74.101.1 and 2610:a1:1014::d. Each host name carries two IP addresses.