commoncoregradebook.com - robtex.com
commoncoregradebook.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=1777149056 | ||||||
Same first word
commoncoregradebook.com |
DNS History
7 records (7 active, 0 former)
●NSpdns85.ultradns.biz2015-06-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:01:06
●NSpdns85.ultradns.com2015-06-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:01:06
●NSpdns85.ultradns.net2015-06-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:01:06
●NSpdns85.ultradns.org2015-06-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:01:06
●MXmailstore1.secureserver.net.commoncoregradebook.com2015-06-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:01:06
●MXsmtp.secureserver.net.commoncoregradebook.com2015-06-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:01:06
●A184.168.221.162015-06-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:01:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, k.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net... | - |
| commoncoregradebook.com | pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.67.85
NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for commoncoregradebook.com (unsigned zone)
⏱️ Timing
Total: 842ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 184.168.221.16 |
| NS | 4 | pdns85.ultradns.biz, pdns85.ultradns.com... |
| MX | 2 | smtp.secureserver.net.commoncoregradeboo, mailstore1.secureserver.net.commoncoregr |
| 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
commoncoregradebook.com points to IP number: 184.168.221.16.
Other host names such as bostonwestphotography.com, hunchak.com, shopena.net, 16.221.168.184.host.secureserver.net and franek.net share IPs with commoncoregradebook.com.
Name Servers
commoncoregradebook.com is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
commoncoregradebook.com at least partially shares name servers with other domains, for instance mcgraw-hillpublishing.com, harrisonsonhand.com, mhpharmtech.com, engradend.com and atlasoffamilymedicine.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
commoncoregradebook.com is handled by two mail servers: mailstore1.secureserver.net.commoncoregradebook.com and smtp.secureserver.net.commoncoregradebook.com.