isctr.com - dns.ninja
isctr.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=1782699725 | ||||||
Same first word
isctr.com |
Similar names
DNS History
13 records (5 active, 8 former)
●NSha1.markmonitor.zone2026-04-03 → 2026-06-29 · 3 obs
● 2026-04-03 21:23:32
● 2026-06-29 02:30:06
●NSha2.markmonitor.zone2026-04-03 → 2026-06-29 · 3 obs
● 2026-04-03 21:23:32
● 2026-06-29 02:30:06
●NSha3.markmonitor.zone2026-04-03 → 2026-06-29 · 3 obs
● 2026-04-03 21:23:32
● 2026-06-29 02:30:06
●NSha4.markmonitor.zone2026-04-03 → 2026-06-29 · 3 obs
● 2026-04-03 21:23:32
● 2026-06-29 02:30:06
○NSns1.astonishdns.com2015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
○NSns10.dnsmadeeasy.com2015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
○NSns2.astonishdns.com2015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
○NSns3.astonishdns.com2015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
○NSns4.astonishdns.com2015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
○MXmx1.emailsrvr.com2015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
○MXmx2.emailsrvr.com2015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
○A198.101.128.2292015-08-26 → 2017-01-19 · 4 obs
● 2017-01-19 10:48:24
○ 2026-04-03 21:23:32
○ 2026-06-29 02:30:06
●A3.33.139.322026-04-03 → 2026-06-29 · 3 obs
● 2026-04-03 21:23:32
● 2026-06-29 02:30:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net... | - |
| isctr.com | ha4.markmonitor.zone, ha2.markmonitor.zone, ha1.markmonitor.zone, ha3.markmonitor.zone | - |
✅ Authoritative Response
Server:162.219.55.170
NS records: ha4.markmonitor.zone, ha2.markmonitor.zone, ha1.markmonitor.zone, ha3.markmonitor.zone
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for isctr.com (unsigned zone)
⏱️ Timing
Total: 352ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.33.139.32 |
| NS | 4 | ha2.markmonitor.zone, ha3.markmonitor.zone... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ha1.markmonitor.zone hostmaster.markmoni |
Analysis
IP Addresses
isctr.com has exactly one IP address — 3.33.139.32.
renasys.co.uk, mail.endurancere.nyc, checkpointnz.com plus two other host names have IP numbers in common with isctr.com.
Name Servers
Four name servers handle the delegation for isctr.com: ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and ha4.markmonitor.zone.
isctr.com has at least partial name server overlap with other domains, such as alamo.com.ph, wtwco.cz, hrhae.com and two others.
ns1.markmonitor.com, ns2.markmonitor.com and ns3.markmonitor.com — plus 4 other name servers — are commonly paired with these name servers.
ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and ha4.markmonitor.zone all point to exactly two IP numbers each: ha1.markmonitor.zone → 192.174.68.5 and 2001:67c:1bc::5; ha2.markmonitor.zone → 162.219.54.170 and 2620:10a:80eb::6b; ha3.markmonitor.zone → 176.97.158.5 and 2001:67c:10b8::5; ha4.markmonitor.zone → 162.219.55.170 and 2620:10a:80ec::6b.