oldtextbook.com - robtex.com
oldtextbook.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.0.78.24🇺🇸 Automattic192.0.78.0/24 Route Object | ||||||
| A | 192.0.78.25🇺🇸 Automattic192.0.78.0/24 Route Object | ||||||
| NS | ns1.wordpress.com ⭐ | ||||||
| A | 2a04:fa87:ffff::c6b5:7409🇮🇪 Automattic2a04:fa87:ffff::/48 | ||||||
| PTR | ns1.wordpress.com | ||||||
| A | 198.181.116.9🇺🇸 Automattic198.181.116.0/24 Route Object | ||||||
| PTR | ns1.wordpress.com | ||||||
| NS | ns2.wordpress.com | ||||||
| A | 2a04:fa87:ffff::c6b5:7509🇮🇪 Automattic2a04:fa87:ffff::/48 | ||||||
| PTR | ns2.wordpress.com | ||||||
| A | 198.181.117.9🇺🇸 Automattic198.181.117.0/24 Route Object | ||||||
| PTR | ns2.wordpress.com | ||||||
| NS | ns3.wordpress.com | ||||||
| A | 2620:115:c00f::c000:4a09🇺🇸 Automattic2620:115:c00f::/48 Route6 Object | ||||||
| PTR | ns3.wordpress.com | ||||||
| A | 192.0.74.9🇺🇸 Automattic192.0.74.0/24 Route Object | ||||||
| PTR | ns3.wordpress.com | ||||||
| TXT | v=spf1 include:spf.titan.email ~all | ||||||
| SOA | ns1.wordpress.comhostmaster@wordpress.com 2005-07-18 #58 | ||||||
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=1785734572 | ||||||
Previously MX for
oldtextbook.com |
Same first word
oldtextbook.com |
DNS History
9 records (5 active, 4 former)
○NSns1.bh-61.webhostbox.net2016-05-04 → 2017-01-24 · 4 obs
● 2017-01-24 21:57:46
○ 2018-07-22 22:14:44
○ 2026-08-03 05:28:34
●NSns1.wordpress.com2026-04-14 → 2026-08-03 · 3 obs
● 2026-04-14 23:54:24
● 2026-08-03 05:28:34
○NSns2.bh-61.webhostbox.net2016-05-04 → 2017-01-24 · 4 obs
● 2017-01-24 21:57:46
○ 2018-07-22 22:14:44
○ 2026-08-03 05:28:34
●NSns2.wordpress.com2026-04-14 → 2026-08-03 · 3 obs
● 2026-04-14 23:54:24
● 2026-08-03 05:28:34
●NSns3.wordpress.com2026-04-14 → 2026-08-03 · 3 obs
● 2026-04-14 23:54:24
● 2026-08-03 05:28:34
○MXoldtextbook.com2016-05-04 → 2017-01-24 · 4 obs
● 2017-01-24 21:57:46
○ 2018-07-22 22:14:44
○ 2026-08-03 05:28:34
●A192.0.78.242026-04-14 → 2026-08-03 · 3 obs
● 2026-04-14 23:54:24
● 2026-08-03 05:28:34
●A192.0.78.252026-04-14 → 2026-08-03 · 3 obs
● 2026-04-14 23:54:24
● 2026-08-03 05:28:34
○A204.11.59.1952016-05-04 → 2017-01-24 · 4 obs
● 2017-01-24 21:57:46
○ 2018-07-22 22:14:44
○ 2026-08-03 05:28:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| oldtextbook.com | ns1.wordpress.com, ns2.wordpress.com, ns3.wordpress.com | 6 records |
✅ Authoritative Response
Server:198.181.116.9
NS records: ns1.wordpress.com, ns2.wordpress.com, ns3.wordpress.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for oldtextbook.com (unsigned zone)
⏱️ Timing
Total: 111ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 192.0.78.25, 192.0.78.24 |
| NS | 3 | ns1.wordpress.com, ns3.wordpress.com... |
| TXT | 1 | v=spf1 include:spf.titan.email ~all |
| SOA | 1 | ns1.wordpress.com hostmaster.wordpress.c |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.wordpress.com, ns1.wordpress.com, ns2.wordpress.com...)
Analysis
IP Addresses
oldtextbook.com points to the IP addresses 192.0.78.24 and 192.0.78.25
Two other host names, along with pymath.com, patricksponaugle.com and bayarealanguages.com, also share IP numbers with oldtextbook.com.
Name Servers
oldtextbook.com carries NS records delegating to ns1.wordpress.com, ns2.wordpress.com and ns3.wordpress.com.
There is at least partial name server overlap between oldtextbook.com and other domains — smw-designs.com, upared.com, 1fcnuk.com and two more among them.
ns1.wordpress.com, ns2.wordpress.com and ns3.wordpress.com are three hostnames that each resolve to a pair of IP addresses: ns1.wordpress.com to 198.181.116.9 and 2a04:fa87:ffff::c6b5:7409, ns2.wordpress.com to 198.181.117.9 and 2a04:fa87:ffff::c6b5:7509, and ns3.wordpress.com to 192.0.74.9 and 2620:115:c00f::c000:4a09.