precalculus.com - robtex.com
precalculus.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.namefind.com ⭐ | ||||||
| A | 97.74.99.64🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.namefind.com | ||||||
| NS | ns2.namefind.com | ||||||
| A | 173.201.67.64🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.namefind.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.namefind.comdns@jomax.net 2023-03-15 #0 | ||||||
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=1776027247 | ||||||
Subdomains
www.precalculus.com |
Same first word
precalculus.com |
DNS History
15 records (4 active, 11 former)
○NSbuy.internettraffic.com2015-10-28 → 2016-06-25 · 5 obs
● 2015-10-28 15:15:10
● 2016-06-25 23:25:54
○ 2017-02-06 06:55:08
○ 2026-04-12 21:08:30
●NSns1.namefind.com2020-01-23 → 2026-04-12 · 3 obs
● 2020-01-23 15:05:36
● 2026-04-12 21:08:30
○NSns1.sedoparking.com2015-08-23 → 2015-08-23 · 3 obs
○ 2015-10-28 15:15:10
○ 2026-04-12 21:08:30
○NSns1.uniregistrymarket.link2017-02-06 → 2017-02-06 · 4 obs
● 2017-02-06 06:55:08
○ 2020-01-23 15:05:36
○ 2026-04-12 21:08:30
●NSns2.namefind.com2020-01-23 → 2026-04-12 · 3 obs
● 2020-01-23 15:05:36
● 2026-04-12 21:08:30
○NSns2.sedoparking.com2015-08-23 → 2015-08-23 · 3 obs
○ 2015-10-28 15:15:10
○ 2026-04-12 21:08:30
○NSns2.uniregistrymarket.link2017-02-06 → 2017-02-06 · 4 obs
● 2017-02-06 06:55:08
○ 2020-01-23 15:05:36
○ 2026-04-12 21:08:30
○NSsell.internettraffic.com2015-10-28 → 2016-06-25 · 5 obs
● 2015-10-28 15:15:10
● 2016-06-25 23:25:54
○ 2017-02-06 06:55:08
○ 2026-04-12 21:08:30
○MXmail.nickstel.com2015-08-23 → 2015-08-23 · 3 obs
○ 2015-10-28 15:15:10
○ 2026-04-12 21:08:30
●A13.248.169.482026-04-12 → 2026-04-12 · 3 obs
● 2026-04-12 14:37:00
● 2026-04-12 21:08:30
○A208.73.211.702020-01-23 → 2020-01-23 · 4 obs
● 2020-01-23 15:05:36
○ 2026-04-12 14:37:00
○ 2026-04-12 21:08:30
○A69.172.201.1532016-06-25 → 2017-02-06 · 5 obs
● 2016-06-25 23:25:54
● 2017-02-06 06:55:08
○ 2020-01-23 15:05:36
○ 2026-04-12 21:08:30
○A69.172.201.2082015-10-28 → 2016-01-16 · 5 obs
● 2015-10-28 15:15:10
● 2016-01-16 09:29:22
○ 2016-06-25 23:25:54
○ 2026-04-12 21:08:30
○A72.52.4.1192015-08-23 → 2015-08-23 · 3 obs
○ 2015-10-28 15:15:10
○ 2026-04-12 21:08:30
●A76.223.54.1462026-04-12 → 2026-04-12 · 3 obs
● 2026-04-12 14:37:00
● 2026-04-12 21:08:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net... | - |
| precalculus.com | ns2.namefind.com, ns1.namefind.com | 2 records |
✅ Authoritative Response
Server:173.201.67.64
NS records: ns2.namefind.com, ns1.namefind.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for precalculus.com (unsigned zone)
⏱️ Timing
Total: 227ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns1.namefind.com, ns2.namefind.com |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.namefind.com dns.jomax.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.namefind.com, ns1.namefind.com)
Analysis
Hierarchy
precalculus.com is a parent of www.precalculus.com.
IP Addresses
precalculus.com points to two IP numbers: 13.248.169.48 and 76.223.54.146.
Other host names such as mail.plaza-havana.com, us-helix4.com, lphone.net, lupis.com and snow.zone share IP numbers with precalculus.com.
Name Servers
precalculus.com is delegated to two name servers: ns1.namefind.com and ns2.namefind.com.
precalculus.com uses the same name server setup as other domains, including powermax.net, remoteinternetaccess.com, fortmyersrentals.com, admin.3posta.net and versalle.com.
precalculus.com shares some name servers with other domains, for example schooltutors.net.
Hostnames with a single IP
ns1.namefind.com resolves to: 97.74.99.64.
ns2.namefind.com resolves to: 173.201.67.64.