engineeringbook.com - dns.ninja
engineeringbook.com
| CNAME | live-bookfactory-magento-front-1115248780.us-east-1.elb.amazonaws.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.217.212.63🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix | ||||||
| PTR | ec2-3-217-212-63.compute-1.amazonaws.com | ||||||
| A | 100.58.3.36🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix | ||||||
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=1785741942 | ||||||
Subdomains
cdn.engineeringbook.com |
Same first word
engineeringbook.com |
Similar names
DNS History
11 records (4 active, 7 former)
○NSdns082.d.register.com2015-06-01 → 2017-07-02 · 4 obs
● 2015-06-01 19:53:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
●NSdns1.register.com2026-04-07 → 2026-08-03 · 3 obs
○ 2017-07-02 22:23:22
● 2026-04-07 02:07:26
● 2026-08-03 07:36:04
● 2026-04-07 02:07:26
● 2026-08-03 07:36:04
●NSdns191.a.register.com2015-06-01 → 2026-08-03 · 2 obs
● 2015-06-01 19:53:04
● 2026-08-03 07:36:04
● 2026-08-03 07:36:04
○NSdns196.c.register.com2015-06-01 → 2017-07-02 · 4 obs
● 2015-06-01 19:53:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
●NSdns2.register.com2026-04-07 → 2026-08-03 · 3 obs
○ 2017-07-02 22:23:22
● 2026-04-07 02:07:26
● 2026-08-03 07:36:04
● 2026-04-07 02:07:26
● 2026-08-03 07:36:04
○NSdns238.b.register.com2015-06-01 → 2017-07-02 · 4 obs
● 2015-06-01 19:53:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
○MXp.webcom.ctmail.com2016-09-29 → 2017-07-02 · 4 obs
● 2016-09-29 08:38:08
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
○A174.132.156.762015-06-01 → 2016-03-28 · 4 obs
● 2015-06-01 19:53:04
● 2016-03-28 09:39:50
○ 2016-09-29 08:38:08
○ 2026-08-03 07:36:04
● 2016-03-28 09:39:50
○ 2016-09-29 08:38:08
○ 2026-08-03 07:36:04
○A54.235.124.2242017-07-02 → 2017-07-02 · 4 obs
○ 2016-09-29 08:38:08
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
● 2017-07-02 22:23:22
○ 2026-04-07 02:07:26
○ 2026-08-03 07:36:04
○A54.243.176.2492016-09-29 → 2016-09-29 · 4 obs
○ 2016-03-28 09:39:50
● 2016-09-29 08:38:08
○ 2017-07-02 22:23:22
○ 2026-08-03 07:36:04
● 2016-09-29 08:38:08
○ 2017-07-02 22:23:22
○ 2026-08-03 07:36:04
●CNAMElive-bookfactory-magento-front-1115248780.us-east-1.elb.amazonaws.com2026-04-07 → 2026-08-03 · 2 obs
● 2026-04-07 02:07:26
● 2026-08-03 07:36:04
● 2026-08-03 07:36:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| engineeringbook.com | dns1.register.com, dns2.register.com | 2 records |
✅ Authoritative Response
Server:162.159.27.248
NS records: dns1.register.com, dns2.register.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for engineeringbook.com (unsigned zone)
⏱️ Timing
Total: 155ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | live-bookfactory-magento-front-111524878 |
| SOA | 1 | dns191.a.register.com root.register.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns1.register.com, dns2.register.com)
Analysis
Hierarchy
cdn.engineeringbook.com is delegated beneath engineeringbook.com.
IP Addresses
engineeringbook.com points to the IP addresses 3.217.212.63 and 100.58.3.36
Further host names like bookfactory.com and live-bookfactory-magento-front-1115248780.us-east-1.elb.amazonaws.com overlap in IP numbers with engineeringbook.com.