mathreference.com - dns.ninja
mathreference.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.252.162.35🇺🇸 HURRICANE216.252.162.0/23 IO Cooperative | ||||||
| PTR | 216-252-162-35.iocoop.org | ||||||
| NS | ns1.yourhostingaccount.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 65.254.254.102🇺🇸 EIG-2987365.254.224.0/19 Newfold Digital, Inc. | ||||||
| PTR | ns1.yourhostingaccount.com | ||||||
| NS | ns1.mydomain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.99🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.mydomain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.76🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.yourhostingaccount.com ⚠️ Not in parent delegation | ||||||
| A | 65.254.254.155🇺🇸 EIG-2987365.254.224.0/19 Newfold Digital, Inc. | ||||||
| PTR | ns2.yourhostingaccount.com | ||||||
| NS | ns3.mydomain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.99🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.yourhostingaccount.comadmin@yourhostingaccount.com 2012-11-21 #31 | ||||||
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=1785794977 | ||||||
📈 Tranco rank: #616,261
Subdomains
Same first word
mathreference.com |
mathreference.org |
DNS History
9 records (6 active, 3 former)
●NSns1.mydomain.com2026-02-19 → 2026-08-03 · 3 obs
● 2026-02-19 11:12:48
● 2026-08-03 22:32:26
●NSns1.yourhostingaccount.com2015-06-12 → 2026-08-03 · 2 obs
● 2026-08-03 22:32:26
●NSns2.mydomain.com2026-02-19 → 2026-08-03 · 3 obs
● 2026-02-19 11:12:48
● 2026-08-03 22:32:26
●NSns2.yourhostingaccount.com2015-10-27 → 2026-08-03 · 6 obs
● 2015-10-27 15:27:18
● 2017-01-14 03:09:04
○ 2018-11-11 08:36:30
● 2026-02-19 11:12:48
● 2026-08-03 22:32:26
●NSns3.mydomain.com2026-02-19 → 2026-08-03 · 3 obs
● 2026-02-19 11:12:48
● 2026-08-03 22:32:26
●A216.252.162.352026-02-19 → 2026-08-03 · 3 obs
● 2026-02-19 11:12:48
● 2026-08-03 22:32:26
○A68.84.191.772015-06-12 → 2016-04-13 · 4 obs
● 2016-04-13 21:00:28
○ 2017-01-14 03:09:04
○ 2026-08-03 22:32:26
○A71.19.155.942017-01-14 → 2017-01-14 · 4 obs
● 2017-01-14 03:09:04
○ 2018-11-11 08:36:30
○ 2026-08-03 22:32:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| mathreference.com | ns1.mydomain.com, ns2.mydomain.com, ns3.mydomain.com | 3 records |
✅ Authoritative Response
Server:172.64.52.99
NS records: ns1.mydomain.com, ns2.mydomain.com, ns3.mydomain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathreference.com (unsigned zone)
⏱️ Timing
Total: 1992ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.252.162.35 |
| NS | 2 | ns1.yourhostingaccount.com, ns2.yourhostingaccount.com |
| SOA | 1 | ns1.yourhostingaccount.com admin.yourhos |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.mydomain.com, ns2.mydomain.com, ns3.mydomain.com)
Analysis
Hierarchy
book.mathreference.com and www.mathreference.com each fall under mathreference.com as their parent domain.
IP Addresses
mathreference.com resolves to just one IP address, 216.252.162.35.
Host names such as book.mathreference.com and www.mathreference.com share IP numbers with mathreference.com.
Name Servers
mathreference.com delegates to five name servers: ns1.mydomain.com, ns2.mydomain.com, ns3.mydomain.com and two others.
mathreference.com shares at least some of its name servers with other domains, including wesellthornton.com, txadc.org, valstone.net and two others.
These name servers are frequently seen alongside ns1.yourhostingaccount.com, ns2.yourhostingaccount.com, ns4.mydomain.com and 7 other name servers.
Host names that point to one IP address:
ns1.mydomain.com points to the IP address 172.64.52.99.
ns2.mydomain.com points to the IP address 172.64.53.76.
ns3.mydomain.com points to the IP address 172.64.52.99.
ns1.yourhostingaccount.com points to the IP address 65.254.254.102.
ns2.yourhostingaccount.com points to the IP address 65.254.254.155.
These two host names — ns1.mydomain.com and ns3.mydomain.com — each point to 172.64.52.99 IP addresses.