www.hackerrankforwork.com - robtex.com

www.hackerrankforwork.com

DNSSEC⚠️ Not signed
A3.222.164.134🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-222-164-134.compute-1.amazonaws.com
A3.227.165.109🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix
A100.30.138.176🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix
A100.49.49.68🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix

hackerrankforwork.com

DNSSEC⚠️ Not signed
A3.222.164.134🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
A3.227.165.109🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix
A100.30.138.176🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix
A100.49.49.68🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix
NSns-655.awsdns-17.net ⭐
NSns-1497.awsdns-59.org
NSns-15.awsdns-01.com
NSns-1908.awsdns-46.co.uk
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXaspmx2.googlemail.com(10)
MXaspmx3.googlemail.com(10)
TXTv=spf1 a mx include:spf.mtasv.net include:mail.zendesk.com include:_spf.sales...
SOAns-655.awsdns-17.netawsdns-hostmaster@amazon.com serial=1

Same first word

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www.from-tx.com
www.gg
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www.neustar
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www.villas
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www.cab
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www.engineer
www.torproject.net
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www.eating-organic.net
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www.uk
www.cloudns.cx
www.bss.design
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www.sumy.ua
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www.ventures
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www.plumbing
www.ally
www.hobby-site.org
www.rs.ba
www.services
www.blogspot.com.co
www.co.dk
www.pn
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www.net.za
www.translate.goog
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www.is-a-nascarfan.com
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www.12chars.it
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DNS History

12 records (4 active, 8 former)

A100.30.138.176100.49.49.683.222.164.1343.227.165.109100.48.233.251100.51.94.20013.219.121.2344.206.97.24352.200.234.24652.4.212.17454.86.134.2354.87.163.52
●A100.30.138.1762026-03-09 → 2026-03-09 · 3 obs
○ 2026-02-26 08:10:00
● 2026-03-09 06:06:32
● 2026-03-09 08:04:54
○A100.48.233.2512026-02-26 → 2026-03-09 · 2 obs
○ 2026-02-26 08:10:00
○ 2026-03-09 08:04:54
●A100.49.49.682026-03-09 → 2026-03-09 · 3 obs
○ 2026-02-26 08:10:00
● 2026-03-09 06:06:32
● 2026-03-09 08:04:54
○A100.51.94.2002026-02-26 → 2026-03-09 · 2 obs
○ 2026-02-26 08:10:00
○ 2026-03-09 08:04:54
○A13.219.121.232026-02-26 → 2026-03-09 · 2 obs
○ 2026-02-26 08:10:00
○ 2026-03-09 08:04:54
●A3.222.164.1342026-03-09 → 2026-03-09 · 3 obs
○ 2026-02-26 08:10:00
● 2026-03-09 06:06:32
● 2026-03-09 08:04:54
●A3.227.165.1092026-03-09 → 2026-03-09 · 3 obs
○ 2026-02-26 08:10:00
● 2026-03-09 06:06:32
● 2026-03-09 08:04:54
○A44.206.97.2432026-02-26 → 2026-03-09 · 2 obs
○ 2026-02-26 08:10:00
○ 2026-03-09 08:04:54
○A52.200.234.2462026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 08:10:00
○ 2026-03-09 06:06:32
○ 2026-03-09 08:04:54
○A52.4.212.1742026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 08:10:00
○ 2026-03-09 06:06:32
○ 2026-03-09 08:04:54
○A54.86.134.232026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 08:10:00
○ 2026-03-09 06:06:32
○ 2026-03-09 08:04:54
○A54.87.163.522026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 08:10:00
○ 2026-03-09 06:06:32
○ 2026-03-09 08:04:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
hackerrankforwork.comns-15.awsdns-01.com, ns-655.awsdns-17.net, ns-1908.awsdns-46.co.uk, ns-1497.awsdns-59.org1 record

✅ Authoritative Response

Server: 205.251.192.15

NS records: ns-15.awsdns-01.com, ns-655.awsdns-17.net, ns-1908.awsdns-46.co.uk, ns-1497.awsdns-59.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hackerrankforwork.com (unsigned zone)

⏱️ Timing

Total: 453ms | Queries: -

📄 Records

TypeCountSample Data
A4100.49.49.68, 3.222.164.134...

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-15.awsdns-01.com)

Analysis

IP Addresses

www.hackerrankforwork.com points to four IP numbers: 3.222.164.134, 3.227.165.109, 100.30.138.176 and 100.49.49.68.

Other host names such as hackerrank.com and hackerrankforwork.com share IP numbers with www.hackerrankforwork.com.