centralmath.org - dns.ninja
centralmath.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 69.163.140.43🇺🇸 AS2634769.163.128.0/17 New Dream Network, LLC 417 Associated Rd. PMB 257 Brea, CA 92821 UNITED STATES | ||||||
| PTR | apache2-bongo.pdx1-shared-a3-02.dreamhost.com | ||||||
| NS | ns1.dreamhost.com ⭐ | ||||||
| A | 162.159.26.14Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.dreamhost.com | ||||||
| NS | ns2.dreamhost.com | ||||||
| A | 162.159.26.81Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.dreamhost.com | ||||||
| NS | ns3.dreamhost.com | ||||||
| A | 162.159.27.84Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.dreamhost.com | ||||||
| MX | mx1.mailchannels.net ⭐ | ||||||
| A | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| A | 54.187.177.89🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-54-187-177-89.us-west-2.compute.amazonaws.com | ||||||
| TXT | v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all | ||||||
| SOA | ns1.dreamhost.comhostmaster@dreamhost.com 2024-04-16 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1781341551 | ||||||
Subdomains
bccalc.centralmath.org |
Same first word
centralmath.com |
centralmath.org |
Similar names
mathcentral.ca |
charmtalent.com |
matchrental.nl |
mathcentral.com |
trachtenalm.at |
rentalmatch.net |
rentalmatch.me |
matchrental.com |
rentalmatch.com |
DNS History
10 records (6 active, 4 former)
●NSns1.dreamhost.com2015-06-06 → 2026-06-13 · 2 obs
● 2026-06-13 09:16:42
●NSns2.dreamhost.com2015-06-06 → 2026-06-13 · 2 obs
● 2026-06-13 09:16:42
●NSns3.dreamhost.com2015-06-06 → 2026-06-13 · 2 obs
● 2026-06-13 09:16:42
○MXmx1.balanced.homie.mail.dreamhost.com2015-06-06 → 2017-07-07 · 3 obs
● 2017-07-07 14:09:28
○ 2026-06-13 09:16:42
●MXmx1.mailchannels.net2026-06-13 → 2026-06-13 · 2 obs
● 2026-06-13 09:16:42
○MXmx2.balanced.homie.mail.dreamhost.com2015-06-06 → 2017-07-07 · 3 obs
● 2017-07-07 14:09:28
○ 2026-06-13 09:16:42
●MXmx2.mailchannels.net2026-06-13 → 2026-06-13 · 2 obs
● 2026-06-13 09:16:42
○A69.163.128.242015-06-06 → 2016-01-26 · 4 obs
● 2016-01-26 02:53:16
○ 2016-06-23 14:24:28
○ 2026-06-13 09:16:42
●A69.163.140.432026-06-13 → 2026-06-13 · 2 obs
● 2026-06-13 09:16:42
○A69.163.153.192016-06-23 → 2017-07-07 · 4 obs
● 2016-06-23 14:24:28
● 2017-07-07 14:09:28
○ 2026-06-13 09:16:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| centralmath.org | ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com | - |
✅ Authoritative Response
Server:162.159.27.84
NS records: ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for centralmath.org (unsigned zone)
⏱️ Timing
Total: 347ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 69.163.140.43 |
| NS | 3 | ns3.dreamhost.com, ns2.dreamhost.com... |
| MX | 2 | mx2.mailchannels.net (pri: 0), mx1.mailchannels.net (pri: 0) |
| TXT | 1 | v=spf1 mx include:netblocks.dreamhost.co |
| SOA | 1 | ns1.dreamhost.com hostmaster.dreamhost.c |
Analysis
Hierarchy
The domain bccalc.centralmath.org falls under the parent centralmath.org.
IP Addresses
centralmath.org directs to one IP number, which is 69.163.140.43.
Among the host names that share IP numbers with centralmath.org are www.bergeronvolvo.com, sergeant-swat.com, freer.org and two others.
Name Servers
centralmath.org is delegated to three name servers: ns1.dreamhost.com, ns2.dreamhost.com and ns3.dreamhost.com.
At least some of centralmath.org's name servers are shared with other domains, for example flipgoal.com, theiia.com, pianoacademysb.com and two more.
ns1.dreamhost.com, ns2.dreamhost.com and ns3.dreamhost.com each resolve to a single IP address: ns1.dreamhost.com resolves to 162.159.26.14, ns2.dreamhost.com resolves to 162.159.26.81 and ns3.dreamhost.com resolves to 162.159.27.84.
Mail Servers
The MX records for centralmath.org point to two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
centralmath.org has the same mail server arrangement as a number of other domains, for example lovingpho.com, gunsavailable.com, forcefive.com and two more.
Each of mx1.mailchannels.net and mx2.mailchannels.net has one IP address: mx1.mailchannels.net uses 54.69.1.140 and mx2.mailchannels.net uses 54.187.177.89.