crtsi.com - robtex.com
crtsi.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=1786025344 | ||||||
Previously NS for
crtsi.com |
Subdomains
Same first word
crtsi.com |
Similar names
DNS History
14 records (10 active, 4 former)
○NScrtsi.com2015-08-07 → 2017-01-25 · 4 obs
● 2017-01-25 23:19:44
○ 2019-03-27 23:30:12
○ 2026-08-06 14:33:10
○NSdns1.primary.net2015-08-07 → 2017-01-25 · 4 obs
● 2017-01-25 23:19:44
○ 2019-03-27 23:30:12
○ 2026-08-06 14:33:10
○NSdns2.primary.net2015-08-07 → 2017-01-25 · 4 obs
● 2017-01-25 23:19:44
○ 2019-03-27 23:30:12
○ 2026-08-06 14:33:10
●NSns11.constellix.com2019-03-27 → 2026-08-06 · 3 obs
● 2019-03-27 23:30:12
● 2026-08-06 14:33:10
●NSns21.constellix.com2019-03-27 → 2026-08-06 · 3 obs
● 2019-03-27 23:30:12
● 2026-08-06 14:33:10
●NSns31.constellix.com2019-03-27 → 2026-08-06 · 3 obs
● 2019-03-27 23:30:12
● 2026-08-06 14:33:10
●NSns41.constellix.net2019-03-27 → 2026-08-06 · 3 obs
● 2019-03-27 23:30:12
● 2026-08-06 14:33:10
●NSns51.constellix.net2019-03-27 → 2026-08-06 · 3 obs
● 2019-03-27 23:30:12
● 2026-08-06 14:33:10
●NSns61.constellix.net2019-03-27 → 2026-08-06 · 3 obs
● 2019-03-27 23:30:12
● 2026-08-06 14:33:10
●MXd364766a.ess.barracudanetworks.com2026-07-21 → 2026-08-06 · 3 obs
● 2026-07-21 18:57:18
● 2026-08-06 14:33:10
●MXd364766b.ess.barracudanetworks.com2026-07-21 → 2026-08-06 · 3 obs
● 2026-07-21 18:57:18
● 2026-08-06 14:33:10
●MXsmtp.crtsi.com2015-08-07 → 2026-08-06 · 2 obs
● 2026-08-06 14:33:10
●A20.75.188.52026-07-21 → 2026-08-06 · 3 obs
● 2026-07-21 18:57:18
● 2026-08-06 14:33:10
○A209.17.127.1022015-08-07 → 2019-03-27 · 4 obs
● 2019-03-27 23:30:12
○ 2026-07-21 18:57:18
○ 2026-08-06 14:33:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net... | - |
| crtsi.com | ns11.constellix.com, ns51.constellix.net, ns41.constellix.net, ns21.constellix.com... | 6 records |
✅ Authoritative Response
Server:46.31.237.1
NS records: ns11.constellix.com, ns51.constellix.net, ns41.constellix.net, ns21.constellix.com, ns61.constellix.net, ns31.constellix.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crtsi.com (unsigned zone)
⏱️ Timing
Total: 603ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 20.75.188.5 |
| NS | 6 | ns11.constellix.com, ns21.constellix.com... |
| MX | 3 | smtp.crtsi.com (pri: 40), d364766a.ess.barracudanetworks.com (pri:... |
| TXT | 2 | MS=ms43396235, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns11.constellix.com dns.constellix.com |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns11.constellix.com, ns11.constellix.com, ns21.constellix.com...)
Analysis
Hierarchy
smtp.crtsi.com and mail.crtsi.com are both subdomains of crtsi.com.
IP Addresses
crtsi.com resolves to one IP address: 20.75.188.5.
ddanielsagency.com, josesepulvedaagency.com, flpagency.com and two other host names share IP numbers with crtsi.com.
Name Servers
crtsi.com is delegated to 6 name servers: ns11.constellix.com, ns21.constellix.com, ns31.constellix.com and 3 other.
There is at least partial name server overlap between crtsi.com and other domains — esourceforge.com, frauenkontakte.ch, northerncs.ca and two more among them.
The name servers ns51.constellix.net, ns61.constellix.net and ns41.constellix.net are often found in combination with these name servers.
Hostnames that resolve to two IP addresses:
ns11.constellix.com points to 96.45.80.1 and 2600:180a:1001::1.
ns21.constellix.com points to 46.31.236.1 and 2600:180b:2001::1.
ns31.constellix.com points to 43.247.170.1 and 2600:180c:3001::1.
ns41.constellix.net points to 96.45.81.1 and 2600:180a:4001::1.
ns51.constellix.net points to 46.31.237.1 and 2600:180b:5001::1.
ns61.constellix.net points to 43.247.171.1 and 2600:180c:6001::1.
Mail Servers
Incoming mail for crtsi.com is delivered via three mail servers: smtp.crtsi.com, d364766a.ess.barracudanetworks.com and d364766b.ess.barracudanetworks.com.
Hostnames that resolve to three IP addresses:
d364766a.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255.
d364766b.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255.
Hosts with just one IP address:
smtp.crtsi.com points to 207.244.192.250.
d364766a.ess.barracudanetworks.com and d364766b.ess.barracudanetworks.com are host names that each point to 209.222.82.252 IP addresses.
d364766a.ess.barracudanetworks.com and d364766b.ess.barracudanetworks.com are host names that each point to 209.222.82.253 IP addresses.
d364766a.ess.barracudanetworks.com and d364766b.ess.barracudanetworks.com are host names that each point to 209.222.82.255 IP addresses.