prepstep.info - robtex.com
prepstep.info
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.221.14.183🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix | ||||||
| PTR | ec2-3-221-14-183.compute-1.amazonaws.com | ||||||
| A | 34.202.98.190🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| NS | ns-162.awsdns-20.com ⭐ | ||||||
| A | 2600:9000:5300:a200::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-162.awsdns-20.com | ||||||
| A | 205.251.192.162🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-162.awsdns-20.com | ||||||
| NS | ns-1021.awsdns-63.net | ||||||
| A | 2600:9000:5303:fd00::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-1021.awsdns-63.net | ||||||
| A | 205.251.195.253🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-1021.awsdns-63.net | ||||||
| NS | ns-1136.awsdns-14.org | ||||||
| A | 2600:9000:5304:7000::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1136.awsdns-14.org | ||||||
| A | 205.251.196.112🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1136.awsdns-14.org | ||||||
| NS | ns-1732.awsdns-24.co.uk | ||||||
| A | 2600:9000:5306:c400::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1732.awsdns-24.co.uk | ||||||
| A | 205.251.198.196🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1732.awsdns-24.co.uk | ||||||
| SOA | ns-162.awsdns-20.comawsdns-hostmaster@amazon.com serial=1 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1771291020 | ||||||
Same first word
Similar names
DNS History
13 records (6 active, 7 former)
●NSns-1021.awsdns-63.net2017-04-09 → 2026-02-26 · 3 obs
● 2017-04-09 06:50:50
● 2026-02-26 06:41:34
●NSns-1136.awsdns-14.org2017-04-09 → 2026-02-26 · 3 obs
● 2017-04-09 06:50:50
● 2026-02-26 06:41:34
●NSns-162.awsdns-20.com2017-04-09 → 2026-02-26 · 3 obs
● 2017-04-09 06:50:50
● 2026-02-26 06:41:34
●NSns-1732.awsdns-24.co.uk2017-04-09 → 2026-02-26 · 3 obs
● 2017-04-09 06:50:50
● 2026-02-26 06:41:34
○NSns-east.cerf.net2016-04-03 → 2016-09-19 · 4 obs
● 2016-09-19 10:32:34
○ 2017-04-09 06:50:50
○ 2026-02-26 06:41:34
○NSns-west.cerf.net2016-04-03 → 2016-09-19 · 4 obs
● 2016-09-19 10:32:34
○ 2017-04-09 06:50:50
○ 2026-02-26 06:41:34
○A18.235.118.562026-02-26 → 2026-02-26 · 2 obs
○ 2026-02-26 06:41:34
●A3.221.14.1832026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 06:41:28
● 2026-02-26 06:41:34
●A34.202.98.1902026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 06:41:28
● 2026-02-26 06:41:34
○A52.207.149.102017-04-09 → 2017-04-09 · 4 obs
● 2017-04-09 06:50:50
○ 2026-02-26 06:41:28
○ 2026-02-26 06:41:34
○A54.166.21.1482026-02-26 → 2026-02-26 · 2 obs
○ 2026-02-26 06:41:34
○A54.84.92.2222017-04-09 → 2017-04-09 · 4 obs
● 2017-04-09 06:50:50
○ 2026-02-26 06:41:28
○ 2026-02-26 06:41:34
○A63.240.48.1692016-04-03 → 2016-09-19 · 4 obs
● 2016-09-19 10:32:34
○ 2017-04-09 06:50:50
○ 2026-02-26 06:41:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| prepstep.info | ns-1732.awsdns-24.co.uk, ns-162.awsdns-20.com, ns-1021.awsdns-63.net, ns-1136.awsdns-14.org | - |
✅ Authoritative Response
Server: 205.251.196.112
NS records: ns-1732.awsdns-24.co.uk, ns-162.awsdns-20.com, ns-1021.awsdns-63.net, ns-1136.awsdns-14.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prepstep.info (unsigned zone)
⏱️ Timing
Total: 334ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 34.202.98.190, 3.221.14.183 |
| NS | 4 | ns-1021.awsdns-63.net, ns-1136.awsdns-14.org... |
| SOA | 1 | ns-162.awsdns-20.com awsdns-hostmaster.a |
AI analysis
prepstep.info points to two IP numbers: 3.221.14.183 and 34.202.98.190.
Other host names, for instance learnx.com, learnatest.com, lexpr.es, ec2-3-221-14-183.compute-1.amazonaws.com and prepstephighschool.com share IP numbers with prepstep.info.
prepstep.info is delegated to four name servers: ns-162.awsdns-20.com, ns-1021.awsdns-63.net, ns-1136.awsdns-14.org and ns-1732.awsdns-24.co.uk.
prepstep.info shares name servers with other domains at least partially, for instance diligenceengine.ca, konnectme2.com, pedigreeklub.sk, theredpin.com and foramelia.com.
these name servers are often used together with the name servers ns-733.awsdns-27.net.
Host names with two IP numbers:
ns-162.awsdns-20.com resolves to 2600:9000:5300:a200::1 and 205.251.192.162.
ns-1021.awsdns-63.net resolves to 2600:9000:5303:fd00::1 and 205.251.195.253.
ns-1136.awsdns-14.org resolves to 2600:9000:5304:7000::1 and 205.251.196.112.
ns-1732.awsdns-24.co.uk resolves to 2600:9000:5306:c400::1 and 205.251.198.196.