121security.com - dns.ninja
121security.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a07:7800::166🇬🇧 TWENTYI2a07:7800::/48 | ||||||
| A | 185.151.30.166🇬🇧 TWENTYI185.151.30.0/24 | ||||||
| NS | ns1.falcon365.net ⭐ | ||||||
| A | 35.197.225.59🇬🇧 Google35.197.224.0/20 | ||||||
| PTR | 59.225.197.35.bc.googleusercontent.com | ||||||
| NS | ns2.falcon365.net | ||||||
| A | 146.148.28.88🇧🇪 Google146.148.16.0/20 | ||||||
| PTR | 88.28.148.146.bc.googleusercontent.com | ||||||
| NS | ns3.falcon365.net | ||||||
| A | 35.198.79.191🇩🇪 Google35.198.64.0/20 | ||||||
| PTR | 191.79.198.35.bc.googleusercontent.com | ||||||
| NS | ns4.falcon365.net | ||||||
| A | 104.196.137.209🇺🇸 Google104.196.128.0/20 | ||||||
| PTR | 209.137.196.104.bc.googleusercontent.com | ||||||
| MX | mx.stackmail.com ⭐ | ||||||
| A | 185.151.28.67🇬🇧 TWENTYI185.151.28.0/24 | ||||||
| PTR | mx.stackmail.com | ||||||
| SOA | ns1.falcon365.nethostmaster@falcon365.net serial=1596469824 | ||||||
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=1784868112 | ||||||
Subdomains
mail.121security.com |
mailserver.121security.com |
Same first word
121security.com |
DNS History
14 records (7 active, 7 former)
○NSns.mainnameserver.com2015-07-20 → 2020-03-19 · 5 obs
● 2015-07-20 07:55:16
● 2020-03-19 13:35:08
○ 2026-02-23 03:20:58
○ 2026-07-24 05:04:42
●NSns1.falcon365.net2026-02-23 → 2026-07-24 · 3 obs
● 2026-02-23 03:20:58
● 2026-07-24 05:04:42
●NSns2.falcon365.net2026-02-23 → 2026-07-24 · 3 obs
● 2026-02-23 03:20:58
● 2026-07-24 05:04:42
○NSns2.mainnameserver.com2015-07-20 → 2020-03-19 · 5 obs
● 2015-07-20 07:55:16
● 2020-03-19 13:35:08
○ 2026-02-23 03:20:58
○ 2026-07-24 05:04:42
●NSns3.falcon365.net2026-02-23 → 2026-07-24 · 3 obs
● 2026-02-23 03:20:58
● 2026-07-24 05:04:42
●NSns4.falcon365.net2026-02-23 → 2026-07-24 · 3 obs
● 2026-02-23 03:20:58
● 2026-07-24 05:04:42
○MXmail.121security.com2015-07-20 → 2020-03-19 · 5 obs
● 2015-07-20 07:55:16
● 2020-03-19 13:35:08
○ 2026-02-23 03:20:58
○ 2026-07-24 05:04:42
○MXmailserver.121security.com2008-03-16 → 2008-03-16 · 3 obs
○ 2015-07-20 07:55:16
○ 2026-07-24 05:04:42
●MXmx.stackmail.com2026-02-23 → 2026-07-24 · 3 obs
● 2026-02-23 03:20:58
● 2026-07-24 05:04:42
●A185.151.30.1662026-02-23 → 2026-07-24 · 3 obs
● 2026-02-23 03:20:58
● 2026-07-24 05:04:42
○A213.171.219.2452008-03-16 → 2008-03-16 · 3 obs
○ 2015-07-20 07:55:16
○ 2026-07-24 05:04:42
●A2a07:7800::1662026-02-23 → 2026-07-24 · 3 obs
● 2026-02-23 03:20:58
● 2026-07-24 05:04:42
○A79.170.44.1152020-03-19 → 2020-03-19 · 4 obs
● 2020-03-19 13:35:08
○ 2026-02-23 03:20:58
○ 2026-07-24 05:04:42
○A79.170.44.782015-07-20 → 2017-03-14 · 5 obs
● 2015-07-20 07:55:16
● 2017-03-14 10:04:22
○ 2020-03-19 13:35:08
○ 2026-07-24 05:04:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 121security.com | ns1.falcon365.net, ns2.falcon365.net, ns3.falcon365.net, ns4.falcon365.net | - |
✅ Authoritative Response
Server:35.197.225.59
NS records: ns1.falcon365.net, ns2.falcon365.net, ns3.falcon365.net, ns4.falcon365.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 121security.com (unsigned zone)
⏱️ Timing
Total: 602ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.151.30.166 |
| AAAA | 1 | 2a07:7800::166 |
| NS | 4 | ns1.falcon365.net, ns4.falcon365.net... |
| MX | 1 | mx.stackmail.com (pri: 10) |
| SOA | 1 | ns1.falcon365.net hostmaster.falcon365.n |
Analysis
Hierarchy
mail.121security.com and mailserver.121security.com are both subdomains of 121security.com.
IP Addresses
121security.com has two IP addresses: 185.151.30.166 and 2a07:7800::166
futureengineer.co.uk, adobe-dns-3.1st4cleanercarpetssolihull.o.uk, salmagundiart.com and two other host names share IP numbers with 121security.com.
Name Servers
The authoritative name servers for 121security.com are ns1.falcon365.net, ns2.falcon365.net, ns3.falcon365.net and ns4.falcon365.net.
There is at least partial name server overlap between 121security.com and other domains — hondaherts.co.uk, naturalvets.com, falconmedia.co.uk and two more among them.
These name servers tend to appear in combination with the name servers ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com and ns4.stackdns.com.
Each of the four hosts ns1.falcon365.net, ns2.falcon365.net, ns3.falcon365.net and ns4.falcon365.net points to a single IP address — ns1.falcon365.net points to 35.197.225.59, ns2.falcon365.net points to 146.148.28.88, ns3.falcon365.net points to 35.198.79.191 and ns4.falcon365.net points to 104.196.137.209.
Mail Servers
Mail for 121security.com is handled by a single mail server, mx.stackmail.com.
121security.com uses an identical mail server configuration to several other domains — among them ether-solutions.com, thecyclediaries.com, daisysfloraldesigns.com and two more.
mx.stackmail.com directs to just one IP number, 185.151.28.67.