thecomputersciencebook.com - robtex.com
thecomputersciencebook.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 | ||||||
Same first word
thecomputersciencebook.com |
DNS History
14 records (9 active, 5 former)
●NSdns1.p01.nsone.net2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 19:10:14
●NSdns2.p01.nsone.net2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 19:10:14
●NSdns3.p01.nsone.net2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 19:10:14
●NSdns4.p01.nsone.net2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 19:10:14
○NSns1.tsodns.com2020-02-02 → 2020-02-02 · 2 obs
○ 2026-03-01 19:10:14
●MXmxext1.mailbox.org2026-03-01 → 2026-03-01 · 1 obs
●MXmxext2.mailbox.org2026-03-01 → 2026-03-01 · 1 obs
●MXmxext3.mailbox.org2026-03-01 → 2026-03-01 · 1 obs
●A18.208.88.1572026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 19:10:14
○A185.199.108.1532020-02-02 → 2020-02-02 · 2 obs
○ 2026-03-01 19:10:14
○A185.199.109.1532020-02-02 → 2020-02-02 · 2 obs
○ 2026-03-01 19:10:14
○A185.199.110.1532020-02-02 → 2020-02-02 · 2 obs
○ 2026-03-01 19:10:14
○A185.199.111.1532020-02-02 → 2020-02-02 · 2 obs
○ 2026-03-01 19:10:14
●A98.84.224.1112026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 19:10:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| thecomputersciencebook.com | dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net | - |
✅ Authoritative Response
Server: 198.51.44.1
NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for thecomputersciencebook.com (unsigned zone)
⏱️ Timing
Total: 613ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 98.84.224.111, 18.208.88.157 |
| NS | 4 | dns1.p01.nsone.net, dns2.p01.nsone.net... |
| MX | 3 | mxext3.mailbox.org (pri: 20), mxext2.mailbox.org (pri: 10)... |
| TXT | 2 | v=spf1 include:mailbox.org include:serve, google-site-verification=vomh-1VBH0kKXpZ |
| SOA | 1 | dns1.p01.nsone.net domains+netlify.netli |
Analysis
IP Addresses
thecomputersciencebook.com resolves to two IP numbers: 18.208.88.157 and 98.84.224.111.
Other host names, for instance covid19-lockdown-tracker.netlify.com, trusting-kalam-76810a.netlify.com, kind-brahmagupta-058469.bitballoon.com, normandiecollection.fr and 5e294ff2cfe77d0008c007e9--gooding-microsite-auctions-staging.netlify.com share IP numbers with thecomputersciencebook.com.
Name Servers
thecomputersciencebook.com is delegated to four name servers: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net.
thecomputersciencebook.com shares some name servers with other domains, for example actelionhelp.com, carrollgun.com, markandersonphotography.com, acquinex.co.uk and liv-well.com.
these name servers are often used with ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com, ns01.jnjdns.com, ns02.jnjdns.com, ns03.jnjdns.com, ns04.jnjdns.com, connect1.squarespacedns.com and connect2.squarespacedns.com.
Host names with two IP numbers
Two IPs per host:
dns1.p01.nsone.net points to 2620:4d:4000:6259:7:1:0:1 and 198.51.44.1
dns2.p01.nsone.net points to 2a00:edc0:6259:7:1::2 and 198.51.45.1
dns3.p01.nsone.net points to 2620:4d:4000:6259:7:1:0:3 and 198.51.44.65
dns4.p01.nsone.net points to 2a00:edc0:6259:7:1::4 and 198.51.45.65
Mail Servers
thecomputersciencebook.com is handled by three mail servers: mxext1.mailbox.org, mxext2.mailbox.org and mxext3.mailbox.org.
thecomputersciencebook.com shares some mail servers with other domains, at least partially; for instance wolf-bueroservice.de, n-to.de, sluitervdboon.nl, online-rma.com and zwiedenken.eu.
Host names with two IP numbers:
mxext1.mailbox.org: 2001:67c:2050:104:0:1:25:1 and 80.241.60.212
mxext2.mailbox.org: 2001:67c:2050:104:0:2:25:1 and 80.241.60.215
mxext3.mailbox.org: 2001:67c:2050:104:0:3:25:1 and 80.241.60.216