instructionalimprovementsystem.com - robtex.com
instructionalimprovementsystem.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=1777108501 | ||||||
Same first word
instructionalimprovementsystem.com |
DNS History
7 records (7 active, 0 former)
●NSpdns85.ultradns.biz2015-06-24 → 2026-04-25 · 2 obs
● 2026-04-25 09:32:48
●NSpdns85.ultradns.com2015-06-24 → 2026-04-25 · 2 obs
● 2026-04-25 09:32:48
●NSpdns85.ultradns.net2015-06-24 → 2026-04-25 · 2 obs
● 2026-04-25 09:32:48
●NSpdns85.ultradns.org2015-06-24 → 2026-04-25 · 2 obs
● 2026-04-25 09:32:48
●MXmailstore1.secureserver.net.instructionalimprovementsystem.com2015-06-24 → 2026-04-25 · 2 obs
● 2026-04-25 09:32:48
●MXsmtp.secureserver.net.instructionalimprovementsystem.com2015-06-24 → 2026-04-25 · 2 obs
● 2026-04-25 09:32:48
●A184.168.221.192015-06-24 → 2026-04-25 · 2 obs
● 2026-04-25 09:32:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net... | - |
| instructionalimprovementsystem.com | pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.66.85
NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for instructionalimprovementsystem.com (unsigned zone)
⏱️ Timing
Total: 823ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 184.168.221.19 |
| NS | 4 | pdns85.ultradns.biz, pdns85.ultradns.com... |
| MX | 2 | smtp.secureserver.net.instructionalimpro, mailstore1.secureserver.net.instructiona |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | pdns85.ultradns.com hostmaster.mheducati |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (pdns85.ultradns.com, pdns85.ultradns.com)
Analysis
IP Addresses
instructionalimprovementsystem.com points to a single IP number: 184.168.221.19.
Other host names, for instance level8technology.net, mail.serendipityfamilycenter.com, disruptec.com, sappnin.com and jury.guide share IP numbers with instructionalimprovementsystem.com.
Name Servers
instructionalimprovementsystem.com is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
instructionalimprovementsystem.com at least partially shares name servers with other domains, for instance practicalneonatalecho.com, gandt.info, usmle-easy.com, harrisonmedicina.com.mx and revvedbook.com.
Host names with two IP numbers:
pdns85.ultradns.biz points to: 2610:a1:1015::79 and 156.154.66.85.
pdns85.ultradns.com points to: 2001:502:f3ff::79 and 156.154.64.85.
pdns85.ultradns.net points to: 2610:a1:1014::79 and 156.154.65.85.
pdns85.ultradns.org points to: 2001:502:4612::79 and 156.154.67.85.
Mail Servers
instructionalimprovementsystem.com is handled by two mail servers: mailstore1.secureserver.net.instructionalimprovementsystem.com and smtp.secureserver.net.instructionalimprovementsystem.com.