21stcentech.com - dns.ninja
21stcentech.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 67.20.76.211🇺🇸 EIGI67.20.76.0/24 | ||||||
| PTR | host2035.hostmonster.com | ||||||
| NS | ns1.hostmonster.com ⭐ | ||||||
| A | 162.159.24.157Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.hostmonster.com | ||||||
| NS | ns2.hostmonster.com | ||||||
| A | 162.159.25.186Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.hostmonster.com | ||||||
| MX | mail.21stcentech.com ⭐ | ||||||
| A | 67.20.76.211🇺🇸 EIGI67.20.76.0/24 | ||||||
| PTR | host2035.hostmonster.com | ||||||
| TXT | v=spf1 a mx include:websitewelcome.com ~all | ||||||
| SOA | NS1.HOSTMONSTER.comroot@bluehost.com serial=125041010 | ||||||
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=1786589154 | ||||||
rank #248283 in the tld
Subdomains
Same first word
21stcentech.com |
DNS History
5 records (4 active, 1 former)
●NSns1.hostmonster.com2015-06-20 → 2026-08-13 · 2 obs
● 2026-08-13 03:14:36
●NSns2.hostmonster.com2015-06-20 → 2026-08-13 · 2 obs
● 2026-08-13 03:14:36
●MXmail.21stcentech.com2015-06-20 → 2026-08-13 · 2 obs
● 2026-08-13 03:14:36
●A67.20.76.2112021-03-17 → 2026-08-13 · 3 obs
● 2021-03-17 14:21:10
● 2026-08-13 03:14:36
○A74.220.207.1402015-06-20 → 2018-09-15 · 4 obs
● 2018-09-15 00:30:56
○ 2021-03-17 14:21:10
○ 2026-08-13 03:14:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| 21stcentech.com | ns2.hostmonster.com, ns1.hostmonster.com | 2 records |
✅ Authoritative Response
Server:162.159.25.186
NS records: ns2.hostmonster.com, ns1.hostmonster.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21stcentech.com (unsigned zone)
⏱️ Timing
Total: 247ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 67.20.76.211 |
| NS | 2 | ns2.hostmonster.com, ns1.hostmonster.com |
| MX | 1 | mail.21stcentech.com (pri: 0) |
| TXT | 1 | v=spf1 a mx include:websitewelcome.com ~ |
| SOA | 1 | NS1.HOSTMONSTER.com root.bluehost.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.hostmonster.com, ns1.hostmonster.com)
Analysis
Hierarchy
21stcentech.com serves as the parent of www.21stcentech.com and mail.21stcentech.com.
IP Addresses
21stcentech.com has exactly one IP address — 67.20.76.211.
versalles.org.es, qupi.net, mail.kindostudios.com plus two other host names have IP numbers in common with 21stcentech.com.
Name Servers
Two name servers handle the delegation for 21stcentech.com: ns1.hostmonster.com and ns2.hostmonster.com.
The name server configuration of 21stcentech.com is shared with other domains, for instance neptunebeachclub.com, koegeldesign.com, gagifra.com and two others.
21stcentech.com partially shares its name servers with domains like constructoradiasa.com and dublin.at.
These name servers often co-occur with the name servers ns1.bluehost.com.
ns1.hostmonster.com resolves to 162.159.24.157. ns2.hostmonster.com resolves to 162.159.25.186. Both host names point to a single IP number.
Mail Servers
21stcentech.com uses one mail server — mail.21stcentech.com.
mail.21stcentech.com carries a single IP number, which is 67.20.76.211.