gr1math.com - dns.ninja
gr1math.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 204.74.99.100🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar | ||||||
| PTR | crs.ultradns.net | ||||||
| NS | pdns85.ultradns.com ⭐ | ||||||
| A | 2001:502:f3ff::79🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| A | 156.154.64.85🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| NS | pdns85.ultradns.biz | ||||||
| A | 2610:a1:1015::79🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| A | 156.154.66.85🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| NS | pdns85.ultradns.net | ||||||
| A | 2610:a1:1014::79🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| A | 156.154.65.85🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| NS | pdns85.ultradns.org | ||||||
| A | 2001:502:4612::79🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| A | 156.154.67.85🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| MX | mail.eppg.com ⭐ | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | pdns85.ultradns.comhostmaster@mheducation.com 2014-06-08 #20 | ||||||
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=1783442136 | ||||||
Same first word
gr1math.com |
DNS History
7 records (6 active, 1 former)
●NSpdns85.ultradns.biz2015-07-23 → 2026-07-07 · 2 obs
● 2026-07-07 16:56:36
●NSpdns85.ultradns.com2015-07-23 → 2026-07-07 · 2 obs
● 2026-07-07 16:56:36
●NSpdns85.ultradns.net2015-07-23 → 2026-07-07 · 2 obs
● 2026-07-07 16:56:36
●NSpdns85.ultradns.org2015-07-23 → 2026-07-07 · 2 obs
● 2026-07-07 16:56:36
○A192.243.93.742015-07-23 → 2017-02-08 · 4 obs
● 2017-02-08 14:02:58
○ 2026-04-06 02:58:12
○ 2026-07-07 16:56:36
●A204.74.99.1002026-04-06 → 2026-07-07 · 3 obs
● 2026-04-06 02:58:12
● 2026-07-07 16:56:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| gr1math.com | pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.65.85
NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for gr1math.com (unsigned zone)
⏱️ Timing
Total: 575ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 204.74.99.100 |
| NS | 4 | pdns85.ultradns.biz, pdns85.ultradns.com... |
| MX | 1 | mail.eppg.com (pri: 5) |
| 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
gr1math.com resolves to one IP address: 204.74.99.100.
heis-knutsen.no, centerwellazevent.com, ftp.soon.com and two other host names share IP numbers with gr1math.com.
Name Servers
The authoritative name servers for gr1math.com are pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
At least some of gr1math.com's name servers are shared with other domains, for example connectmath.ca, mhschoolinternational.com, accesscardiology.net and two more.
Four hostnames, each resolving to a pair of IP addresses: pdns85.ultradns.biz directs to 156.154.66.85 and 2610:a1:1015::79; pdns85.ultradns.com directs to 156.154.64.85 and 2001:502:f3ff::79; pdns85.ultradns.net directs to 156.154.65.85 and 2610:a1:1014::79; pdns85.ultradns.org directs to 156.154.67.85 and 2001:502:4612::79.
Mail Servers
Mail for gr1math.com is handled by a single mail server, mail.eppg.com.
gr1math.com uses an identical mail server configuration to several other domains — among them abouttechconnect.com, supercyclesbook.com, panreasy.com and two more.