practicebynumbers.com - robtex.com
practicebynumbers.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 | ||||||
Up
Same first word
practicebynumbers.com |
DNS History
12 records (10 active, 2 former)
●NSns-1495.awsdns-58.org2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●NSns-1720.awsdns-23.co.uk2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●NSns-72.awsdns-09.com2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●NSns-740.awsdns-28.net2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●MXalt1.aspmx.l.google.com2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●MXalt2.aspmx.l.google.com2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●MXalt3.aspmx.l.google.com2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●MXalt4.aspmx.l.google.com2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
●MXaspmx.l.google.com2016-12-15 → 2026-02-24 · 2 obs
● 2026-02-24 19:41:50
○A54.183.91.1592016-12-15 → 2016-12-15 · 3 obs
○ 2017-10-03 10:58:32
○ 2026-02-24 19:41:50
●A54.215.84.1672026-02-17 → 2026-02-24 · 3 obs
● 2026-02-17 12:40:50
● 2026-02-24 19:41:50
○A54.241.156.2382017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:58:32
○ 2026-02-17 12:40:50
○ 2026-02-24 19:41:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| practicebynumbers.com | ns-72.awsdns-09.com, ns-740.awsdns-28.net, ns-1720.awsdns-23.co.uk, ns-1495.awsdns-58.org | 1 record |
✅ Authoritative Response
Server: 205.251.194.228
NS records: ns-72.awsdns-09.com, ns-740.awsdns-28.net, ns-1720.awsdns-23.co.uk, ns-1495.awsdns-58.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for practicebynumbers.com (unsigned zone)
⏱️ Timing
Total: 684ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 54.215.84.167 |
| NS | 4 | ns-1495.awsdns-58.org, ns-1720.awsdns-23.co.uk... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| SOA | 1 | ns-1720.awsdns-23.co.uk awsdns-hostmaste |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-72.awsdns-09.com)
AI analysis
practicebynumbers.com is the parent of app.practicebynumbers.com and www.practicebynumbers.com.
practicebynumbers.com resolves to a single IP: 54.215.84.167.
Other host names including www.practicebynumbers.com, app.practicebynumbers.com and ec2-54-215-84-167.us-west-1.compute.amazonaws.com share IP numbers with practicebynumbers.com.
practicebynumbers.com is delegated to four name servers: ns-72.awsdns-09.com, ns-740.awsdns-28.net, ns-1495.awsdns-58.org and ns-1720.awsdns-23.co.uk.
practicebynumbers.com shares some name servers with other domains, for example fikirbazzenger.com, d4ph4flxavcz4.cloudfront.net, bulahdelahcareers.com, treez.io and d3vzqkwv58ww42.cloudfront.net.
These name servers are commonly used with the name servers ns-633.awsdns-15.net.
Host names with two IP numbers
Two IPs per host:
ns-72.awsdns-09.com points to 2600:9000:5300:4800::1 and 205.251.192.72
ns-740.awsdns-28.net points to 2600:9000:5302:e400::1 and 205.251.194.228
ns-1495.awsdns-58.org points to 2600:9000:5305:d700::1 and 205.251.197.215
ns-1720.awsdns-23.co.uk points to 2600:9000:5306:b800::1 and 205.251.198.184
practicebynumbers.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.
practicebynumbers.com shares some mail servers with other domains, at least partially; for instance ns500759.ns500759.ns500698.ns500698.ns500735.ns500736.ns500736.ns500698.ns500735.ns500708.ns500686.ns500686.ns500619.ns500576.trackreceptor.com, ns500698.ns500698.ns500758.ns500759.ns500735.ns500736.ns500735.ns500736.ns500735.ns500698.ns500698.ns500576.ns500576.trackreceptor.com, ns500699.ns500693.ns500699.ns500699.ns500699.ns500699.ns500588.ns500683.ns500683.ns500693.ns500112.dtrkdll.com, ns500698.ns500759.ns500758.ns500759.ns500736.ns500736.ns500698.ns500736.ns500708.ns500708.ns500708.ns500708.ns500576.ns500619.ns500652.ns500619.trackreceptor.com and ns500731.ns500671.ns500671.ns500731.ns500742.ns500731.ns500704.ns500671.ns500705.ns500291.ns500291.ns500131.lustychickser.com.
these mail servers are commonly used alongside aspmx2.googlemail.com and aspmx3.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.