algorithmsbook.com - robtex.com
algorithmsbook.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 96.127.129.50🇺🇸 SINGLEHOP96.127.128.0/18 | ||||||
| PTR | chi206.greengeeks.net | ||||||
| NS | ns1.greengeeks.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 75.2.69.7🇺🇸 Amazon75.2.64.0/20 | ||||||
| PTR | aba07164e9478179d.awsglobalaccelerator.com | ||||||
| NS | ns1.greengeeks.com ⚠️ Not in zone NS records | ||||||
| A | 75.2.69.7🇺🇸 Amazon75.2.64.0/20 | ||||||
| PTR | aba07164e9478179d.awsglobalaccelerator.com | ||||||
| NS | ns2.greengeeks.com ⚠️ Not in zone NS records | ||||||
| A | 99.83.188.187🇺🇸 Amazon99.83.176.0/20 | ||||||
| PTR | aba07164e9478179d.awsglobalaccelerator.com | ||||||
| NS | ns2.greengeeks.net ⚠️ Not in parent delegation | ||||||
| A | 99.83.188.187🇺🇸 Amazon99.83.176.0/20 | ||||||
| PTR | aba07164e9478179d.awsglobalaccelerator.com | ||||||
| MX | algorithmsbook.com ⭐ | ||||||
| A | 96.127.129.50🇺🇸 SINGLEHOP96.127.128.0/18 | ||||||
| PTR | chi206.greengeeks.net | ||||||
| TXT | v=spf1 ip4:96.127.129.50 include:spf.greengeeks.net ip4:184.154.47.42 +a +mx ... | ||||||
| SOA | ns1.greengeeks.netroot@chi206.greengeeks.net 2026-02-06 #1 | ||||||
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 | ||||||
rank #375245 in the tld
🔒 HSTS Preload (+subdomains)
MX for
algorithmsbook.com |
Same first word
algorithmsbook.com |
DNS History
12 records (6 active, 6 former)
●NSns1.greengeeks.com2026-03-05 → 2026-03-23 · 3 obs
● 2026-03-05 00:59:28
● 2026-03-23 09:55:58
●NSns1.greengeeks.net2026-03-05 → 2026-03-23 · 3 obs
● 2026-03-05 00:59:28
● 2026-03-23 09:55:58
●NSns2.greengeeks.com2026-03-05 → 2026-03-23 · 3 obs
● 2026-03-05 00:59:28
● 2026-03-23 09:55:58
●NSns2.greengeeks.net2026-03-05 → 2026-03-23 · 3 obs
● 2026-03-05 00:59:28
● 2026-03-23 09:55:58
○NSredbusprimarydns.algorithmsbook.com2017-05-19 → 2017-05-19 · 3 obs
○ 2026-03-05 00:59:28
○ 2026-03-23 09:55:58
○NSredbussecondarydns.algorithmsbook.com2017-05-19 → 2017-05-19 · 3 obs
○ 2026-03-05 00:59:28
○ 2026-03-23 09:55:58
●MXalgorithmsbook.com2026-03-05 → 2026-03-23 · 2 obs
● 2026-03-23 09:55:58
○A195.149.84.1002017-05-19 → 2017-05-19 · 3 obs
○ 2026-03-05 00:59:28
○ 2026-03-23 09:55:58
○A195.149.84.1012017-05-19 → 2017-05-19 · 3 obs
○ 2026-03-05 00:59:28
○ 2026-03-23 09:55:58
○A2001:67c:38c::642017-05-19 → 2017-05-19 · 3 obs
○ 2026-03-05 00:59:28
○ 2026-03-23 09:55:58
○A2001:67c:38c::652017-05-19 → 2017-05-19 · 3 obs
○ 2026-03-05 00:59:28
○ 2026-03-23 09:55:58
●A96.127.129.502026-03-05 → 2026-03-23 · 3 obs
● 2026-03-05 00:59:28
● 2026-03-23 09:55:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| algorithmsbook.com | ns1.greengeeks.com, ns2.greengeeks.com | 2 records |
✅ Authoritative Response
Server:75.2.69.7
NS records: ns1.greengeeks.com, ns2.greengeeks.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for algorithmsbook.com (unsigned zone)
⏱️ Timing
Total: 162ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 96.127.129.50 |
| NS | 2 | ns1.greengeeks.net, ns2.greengeeks.net |
| MX | 1 | algorithmsbook.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:96.127.129.50 include:spf.gre |
| SOA | 1 | ns1.greengeeks.net root.chi206.greengeek |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.greengeeks.com, ns2.greengeeks.com)
Analysis
Mail Server Role
algorithmsbook.com serves as the mail server for algorithmsbook.com.
IP Addresses
algorithmsbook.com points to a single IP number: 96.127.129.50.
Other host names, for instance canada-uwc.com, mail.onecity.net, cerberussd.com, consumerpsychologist.com and ns1.twilighted.net share IP numbers with algorithmsbook.com.
Name Servers
algorithmsbook.com is delegated to four name servers: ns1.greengeeks.com, ns2.greengeeks.com, ns1.greengeeks.net and ns2.greengeeks.net.
algorithmsbook.com at least partially shares name servers with other domains, for instance daviscorealtors.com, fijatevoz.com, gregorybeylerian.com, dreteam.com and mindfulmovementsstudio.com.
These name servers are commonly used with chi-ns1.greengeeks.com, chi-ns2.greengeeks.com, ams-ns1.greengeeks.com, ams-ns1.websitehostserver.net, chi-ns1.websitehostserver.net and chi-ns2.websitehostserver.net.
Host names with one IP number:
Host name ns1.greengeeks.com points to: 75.2.69.7
Host name ns2.greengeeks.com points to: 99.83.188.187
Host name ns1.greengeeks.net points to: 75.2.69.7
Host name ns2.greengeeks.net points to: 99.83.188.187
Host names pointing to 75.2.69.7: ns1.greengeeks.com and ns1.greengeeks.net
Host names pointing to 99.83.188.187: ns2.greengeeks.com and ns2.greengeeks.net
Mail Servers
A single mail server handles algorithmsbook.com.
algorithmsbook.com points to a single IP: 96.127.129.50.