mathswap.com - robtex.com
mathswap.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 207.148.248.143🇺🇸 EIG-29873207.148.248.0/24 | ||||||
| PTR | ip-207-148-248-143.defastlink.net | ||||||
| NS | ns.buydomains.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.com | ||||||
| NS | this-domain-for-sale.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.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=1771291435 | ||||||
Previously MX for
mathswap.com |
Same first word
mathswap.com |
DNS History
14 records (3 active, 11 former)
○NSdns1.name-services.com2016-12-24 → 2016-12-24 · 4 obs
● 2016-12-24 08:30:20
○ 2017-11-15 06:15:50
○ 2026-03-23 14:50:12
○NSdns2.name-services.com2016-12-24 → 2016-12-24 · 4 obs
● 2016-12-24 08:30:20
○ 2017-11-15 06:15:50
○ 2026-03-23 14:50:12
○NSdns3.name-services.com2016-12-24 → 2016-12-24 · 4 obs
● 2016-12-24 08:30:20
○ 2017-11-15 06:15:50
○ 2026-03-23 14:50:12
○NSdns4.name-services.com2016-12-24 → 2016-12-24 · 4 obs
● 2016-12-24 08:30:20
○ 2017-11-15 06:15:50
○ 2026-03-23 14:50:12
○NSdns5.name-services.com2016-12-24 → 2016-12-24 · 4 obs
● 2016-12-24 08:30:20
○ 2017-11-15 06:15:50
○ 2026-03-23 14:50:12
●NSns.buydomains.com2026-03-17 → 2026-03-23 · 3 obs
● 2026-03-17 09:05:30
● 2026-03-23 14:50:12
○NSns.cedant.com2008-03-15 → 2008-03-15 · 3 obs
○ 2015-06-05 08:28:10
○ 2026-03-23 14:50:12
○NSns2.cedant.com2008-03-15 → 2008-03-15 · 3 obs
○ 2015-06-05 08:28:10
○ 2026-03-23 14:50:12
●NSthis-domain-for-sale.com2026-03-17 → 2026-03-23 · 3 obs
● 2026-03-17 09:05:30
● 2026-03-23 14:50:12
○MXmathswap.com2008-03-15 → 2008-03-15 · 3 obs
○ 2015-06-05 08:28:10
○ 2026-03-23 14:50:12
○MXmx2.cedant.com2008-03-15 → 2008-03-15 · 3 obs
○ 2015-06-05 08:28:10
○ 2026-03-23 14:50:12
●A207.148.248.1432026-03-17 → 2026-03-23 · 3 obs
● 2026-03-17 09:05:30
● 2026-03-23 14:50:12
○A66.175.0.122008-03-15 → 2008-03-15 · 3 obs
○ 2015-06-05 08:28:10
○ 2026-03-23 14:50:12
○A8.5.1.392016-12-24 → 2016-12-24 · 4 obs
● 2016-12-24 08:30:20
○ 2017-11-15 06:15:50
○ 2026-03-23 14:50:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| mathswap.com | ns.buydomains.com, this-domain-for-sale.com | 2 records |
✅ Authoritative Response
Server:52.20.26.87
NS records: ns.buydomains.com, this-domain-for-sale.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathswap.com (unsigned zone)
⏱️ Timing
Total: 3862ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.148.248.143 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)
Analysis
IP Addresses
mathswap.com resolves to one IP number: 207.148.248.143.
Other host names, for instance vorlon.surfnine.com, newspride.com, mtg.usefulltips.com, crmpeople.com and hospitalliaison.com share IP numbers with mathswap.com.
Name Servers
mathswap.com's delegation uses two name servers: this-domain-for-sale.com and ns.buydomains.com.
mathswap.com uses the same name server setup as other domains, such as artistillustrations.com, medicalamnesty.com, firstboost.com, donorclothes.com and compumedica.com.
mathswap.com at least partially shares name servers with other domains, for instance firingminds.com, positiveclassrooms.com, platinuminstallations.com and notify.net.
These name servers are commonly used with ns2.buydomains.com.
Host names with a single IP number:
The host name this-domain-for-sale.com points to 52.20.26.87.
The host name ns.buydomains.com points to 52.20.26.87.
Host names pointing to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com.