bookofthought.com - robtex.com
bookofthought.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=1774420272 | ||||||
Same first word
bookofthought.com |
bookofthought.org |
bookofthought.net |
DNS History
6 records (5 active, 1 former)
●NSagate.hstone.com2026-02-25 → 2026-03-25 · 3 obs
● 2026-02-25 18:19:36
● 2026-03-25 06:33:26
●NSweb.hstone.com2015-08-12 → 2026-03-25 · 2 obs
● 2026-03-25 06:33:26
●MXmail.bookofthought.com2015-08-12 → 2026-03-25 · 5 obs
● 2026-02-25 18:19:36
○ 2026-03-19 05:11:52
● 2026-03-25 06:33:24
● 2026-03-25 06:33:26
●A198.161.220.2002020-03-16 → 2026-03-25 · 6 obs
● 2020-03-16 16:31:44
● 2026-02-25 18:19:36
○ 2026-03-19 05:11:52
● 2026-03-25 06:33:24
● 2026-03-25 06:33:26
○A198.161.220.542015-08-12 → 2017-03-27 · 4 obs
● 2017-03-27 22:41:18
○ 2020-03-16 16:31:44
○ 2026-03-25 06:33:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| bookofthought.com | dns.tic.ab.ca, web.hstone.com | 1 record |
✅ Authoritative Response
Server:198.161.220.127
NS records: dns.tic.ab.ca, web.hstone.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bookofthought.com (unsigned zone)
⏱️ Timing
Total: 868ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| MX | 1 | mail.bookofthought.com (pri: 5) |
| TXT | 1 | v=spf1 mx a ip4:198.161.220.200/32 ip4:1 |
| SOA | 1 | agate.hstone.com admin.tic.ab.ca |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (web.hstone.com)
Analysis
IP Addresses
bookofthought.com points to a single IP number: 198.161.220.200.
other host names for instance bookofthought.org, smtp.jcboiler.ca, hcd.ab.ca, icdr.com and mail.icdr.ab.ca share IP numbers with bookofthought.com.
Name Servers
bookofthought.com is delegated to three name servers: agate.hstone.com, web.hstone.com and dns.tic.ab.ca.
bookofthought.com at least partially shares name servers with other domains, for instance waldec.ca, classroomdomain.com, jcboiler.ca, hamletcambridgebay.ca and knopke.ca.
Eight-IP host web.hstone.com points to: 2607:ffb0:4002:198:161:220:32:0, 2607:ffb0:4002:198:161:220:32:1, 2607:ffb0:4002:198:161:220:32:2, 2607:ffb0:4002:198:161:220:32:3, 2607:ffb0:4002:198:161:220:32:4, 2607:ffb0:4002:198:161:220:51:1, 2607:ffb0:4002:198:161:220:51:2 and 2607:ffb0:4002:198:161:220:101:1.
Seven-IP host agate.hstone.com points to: 2607:ffb0:4002:198:161:220:127:0, 2607:ffb0:4002:198:161:220:127:1, 2607:ffb0:4002:198:161:220:127:2, 2607:ffb0:4002:198:161:220:127:3, 2607:ffb0:4002:198:161:220:127:4, 198.161.220.127 and 198.161.220.200.
Six-IP host dns.tic.ab.ca points to: 2607:ffb0:4002:198:161:220:127:0, 2607:ffb0:4002:198:161:220:127:1, 2607:ffb0:4002:198:161:220:127:2, 2607:ffb0:4002:198:161:220:127:3, 2607:ffb0:4002:198:161:220:127:4 and 198.161.220.127.
The two hosts agate.hstone.com and dns.tic.ab.ca point to the same destinations: 2607:ffb0:4002:198:161:220:127:0, 2607:ffb0:4002:198:161:220:127:1, 2607:ffb0:4002:198:161:220:127:2, 2607:ffb0:4002:198:161:220:127:3, 2607:ffb0:4002:198:161:220:127:4 and 198.161.220.127.
Hosts that point to 2607:ffb0:4002:198:161:220:127:0: agate.hstone.com and dns.tic.ab.ca.
Hosts that point to 2607:ffb0:4002:198:161:220:127:1: agate.hstone.com and dns.tic.ab.ca.
Hosts that point to 2607:ffb0:4002:198:161:220:127:2: agate.hstone.com and dns.tic.ab.ca.
Hosts that point to 2607:ffb0:4002:198:161:220:127:3: agate.hstone.com and dns.tic.ab.ca.
Hosts that point to 2607:ffb0:4002:198:161:220:127:4: agate.hstone.com and dns.tic.ab.ca.
Hosts that point to 198.161.220.127: agate.hstone.com and dns.tic.ab.ca.
Mail Servers
bookofthought.com is handled by a single mail server, mail.bookofthought.com.
Host name mail.bookofthought.com points to IP address 198.161.220.200.