techdebtbook.com - robtex.com
techdebtbook.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
techdebtbook.com |
DNS History
16 records (10 active, 6 former)
●NSns-1221.awsdns-24.org2019-03-15 → 2026-02-25 · 2 obs
● 2026-02-25 12:18:24
●NSns-1972.awsdns-54.co.uk2019-03-15 → 2026-02-25 · 2 obs
● 2026-02-25 12:18:24
●NSns-448.awsdns-56.com2019-03-15 → 2026-02-25 · 2 obs
● 2026-02-25 12:18:24
●NSns-856.awsdns-43.net2019-03-15 → 2026-02-25 · 2 obs
● 2026-02-25 12:18:24
●MXalt1.aspmx.l.google.com2026-02-25 → 2026-02-25 · 1 obs
●MXalt2.aspmx.l.google.com2026-02-25 → 2026-02-25 · 1 obs
●MXalt3.aspmx.l.google.com2026-02-25 → 2026-02-25 · 1 obs
●MXalt4.aspmx.l.google.com2026-02-25 → 2026-02-25 · 1 obs
●MXaspmx.l.google.com2026-02-25 → 2026-02-25 · 1 obs
●A104.198.14.522026-02-25 → 2026-02-25 · 2 obs
● 2026-02-25 12:18:24
○A2600:1f14:ce5:2a00:a452:82:6852:d6e32019-03-15 → 2019-03-15 · 2 obs
○ 2026-02-25 12:18:24
○A2600:1f14:ce5:2a01:4296:8f75:9681:5a302019-03-15 → 2019-03-15 · 2 obs
○ 2026-02-25 12:18:24
○A2600:1f14:ce5:2a02:f217:46e4:65bd:73d82019-03-15 → 2019-03-15 · 2 obs
○ 2026-02-25 12:18:24
○A34.216.81.1082019-03-15 → 2019-03-15 · 2 obs
○ 2026-02-25 12:18:24
○A35.166.123.2362019-03-15 → 2019-03-15 · 2 obs
○ 2026-02-25 12:18:24
○A54.186.114.1882019-03-15 → 2019-03-15 · 2 obs
○ 2026-02-25 12:18:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| techdebtbook.com | ns-448.awsdns-56.com, ns-856.awsdns-43.net, ns-1221.awsdns-24.org, ns-1972.awsdns-54.co.uk | - |
✅ Authoritative Response
Server: 205.251.195.88
NS records: ns-448.awsdns-56.com, ns-856.awsdns-43.net, ns-1221.awsdns-24.org, ns-1972.awsdns-54.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for techdebtbook.com (unsigned zone)
⏱️ Timing
Total: 91ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 104.198.14.52 |
| NS | 4 | ns-1221.awsdns-24.org, ns-1972.awsdns-54.co.uk... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 1 | google-site-verification=DVwT0fjtVZ9vxX7 |
| SOA | 1 | ns-1221.awsdns-24.org awsdns-hostmaster. |
AI analysis
techdebtbook.com resolves to a single IP: 104.198.14.52.
Other host names, for instance singscool.de, mail.kivits.com, _dc-mx.20f0c8030dea.medichempharma.com, nesaia.com and vagish.com share IP numbers with techdebtbook.com.
techdebtbook.com is delegated to four name servers: ns-448.awsdns-56.com, ns-856.awsdns-43.net, ns-1221.awsdns-24.org and ns-1972.awsdns-54.co.uk.
techdebtbook.com shares some name servers with other domains, for example erdogant.com, d2ddjz2p2q9dcr.cloudfront.net, alohamarine.com, italoacasas.com and innovationincubator.com.
These name servers are often used together with ns-284.awsdns-35.com, ns-1118.awsdns-11.org and ns-615.awsdns-12.net.
Host names with two IP numbers
Two IPs per host:
ns-448.awsdns-56.com points to 2600:9000:5301:c000::1 and 205.251.193.192
ns-856.awsdns-43.net points to 2600:9000:5303:5800::1 and 205.251.195.88
ns-1221.awsdns-24.org points to 2600:9000:5304:c500::1 and 205.251.196.197
ns-1972.awsdns-54.co.uk points to 2600:9000:5307:b400::1 and 205.251.199.180
techdebtbook.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
techdebtbook.com shares some mail servers with other domains, at least partially; for instance ns500765.ns500699.ns500693.ns500734.ns500693.ns500699.ns500588.ns500632.ns500588.ns500588.ns500602.ns500578.ns500110.dtrkdll.com, ns500759.ns500698.ns500758.ns500759.ns500698.ns500698.ns500698.ns500735.ns500698.ns500576.ns500652.ns500619.trackreceptor.com, ns500698.ns500759.ns500698.ns500758.ns500735.ns500698.ns500736.ns500698.ns500735.ns500736.ns500698.ns500652.ns500576.ns500576.trackreceptor.com, cosme-de.com and mrcavior.com.
these mail servers are often used together with the mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IPs:
Host aspmx.l.google.com has IPs 2607:f8b0:4004:c19::1b and 172.253.62.27.
Host alt1.aspmx.l.google.com has IPs 2607:f8b0:4003:c30::1b and 74.125.27.26.
Host alt2.aspmx.l.google.com has IPs 2607:f8b0:4001:c70::1a and 192.178.209.26.
Host alt3.aspmx.l.google.com has IPs 2607:f8b0:4024:c0d::1b and 192.178.152.26.
Host alt4.aspmx.l.google.com has IPs 2607:f8b0:4023:403::1a and 142.250.96.27.