opensourcephysics.com - robtex.com
opensourcephysics.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.91.197.27🇻🇬 CONFLUENCE-NETWORK-INC208.91.197.0/24 Confluence Networks Route Object | ||||||
| NS | ns77.worldnic.com ⭐ | ||||||
| A | 162.159.26.27Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns78.worldnic.com | ||||||
| A | 162.159.27.78Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | NS77.WORLDNIC.comnamehost@WORLDNIC.com serial=117052913 | ||||||
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=1788685938 | ||||||
Same first word
opensourcephysics.com |
Previous names
Next names
DNS History
8 records (3 active, 5 former)
○NSns01.domaincontrol.com2015-08-07 → 2016-04-18 · 4 obs
● 2016-04-18 06:19:40
○ 2017-04-04 04:31:24
○ 2026-09-06 09:19:32
○NSns02.domaincontrol.com2015-08-07 → 2016-04-18 · 4 obs
● 2016-04-18 06:19:40
○ 2017-04-04 04:31:24
○ 2026-09-06 09:19:32
●NSns77.worldnic.com2026-08-21 → 2026-09-06 · 3 obs
● 2026-08-21 03:53:44
● 2026-09-06 09:19:32
●NSns78.worldnic.com2026-08-21 → 2026-09-06 · 3 obs
● 2026-08-21 03:53:44
● 2026-09-06 09:19:32
○MXmailstore1.secureserver.net2015-08-07 → 2016-04-18 · 4 obs
● 2016-04-18 06:19:40
○ 2017-04-04 04:31:24
○ 2026-09-06 09:19:32
○MXsmtp.secureserver.net2015-08-07 → 2016-04-18 · 4 obs
● 2016-04-18 06:19:40
○ 2017-04-04 04:31:24
○ 2026-09-06 09:19:32
○A184.168.221.432015-08-07 → 2016-04-18 · 4 obs
● 2016-04-18 06:19:40
○ 2017-04-04 04:31:24
○ 2026-09-06 09:19:32
●A208.91.197.272026-08-21 → 2026-09-06 · 3 obs
● 2026-08-21 03:53:44
● 2026-09-06 09:19:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net... | - |
| opensourcephysics.com | ns77.worldnic.com, ns78.worldnic.com | 2 records |
✅ Authoritative Response
Server:162.159.27.78
NS records: ns77.worldnic.com, ns78.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opensourcephysics.com (unsigned zone)
⏱️ Timing
Total: 254ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.91.197.27 |
| NS | 2 | ns77.worldnic.com, ns78.worldnic.com |
| SOA | 1 | NS77.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns77.worldnic.com, ns78.worldnic.com)
Analysis
IP Addresses
opensourcephysics.com resolves to just one IP address, 208.91.197.27.
Two other host names, along with perrysburg.house, kaplan-md.com and pfori.info, also share IP numbers with opensourcephysics.com.
Name Servers
opensourcephysics.com uses two name servers for its delegation: ns77.worldnic.com and ns78.worldnic.com.
opensourcephysics.com shares its NS records with other domains, for example familyofficefitness.com, yourparentsmatter.org, 3csolutions.jp and two others.
ns77.worldnic.com → 162.159.26.27 and ns78.worldnic.com → 162.159.27.78: one IP number per host name.