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 17:45:00
●NSns-1136.awsdns-14.org2017-04-09 → 2026-02-26 · 3 obs
● 2017-04-09 06:50:50
● 2026-02-26 17:45:00
●NSns-162.awsdns-20.com2017-04-09 → 2026-02-26 · 3 obs
● 2017-04-09 06:50:50
● 2026-02-26 17:45:00
●NSns-1732.awsdns-24.co.uk2017-04-09 → 2026-02-26 · 3 obs
● 2017-04-09 06:50:50
● 2026-02-26 17:45:00
○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 17:45:00
○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 17:45:00
○A18.235.118.562026-02-26 → 2026-02-26 · 2 obs
○ 2026-02-26 17:45:00
●A3.221.14.1832026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 06:41:28
● 2026-02-26 17:45:00
●A34.202.98.1902026-02-26 → 2026-02-26 · 3 obs
● 2026-02-26 06:41:28
● 2026-02-26 17:45:00
○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 17:45:00
○A54.166.21.1482026-02-26 → 2026-02-26 · 2 obs
○ 2026-02-26 17:45:00
○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 17:45:00
○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 17:45:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| prepstep.info | ns-1021.awsdns-63.net, ns-1732.awsdns-24.co.uk, ns-162.awsdns-20.com, ns-1136.awsdns-14.org | - |
✅ Authoritative Response
Server: 205.251.196.112
NS records: ns-1021.awsdns-63.net, ns-1732.awsdns-24.co.uk, ns-162.awsdns-20.com, ns-1136.awsdns-14.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prepstep.info (unsigned zone)
⏱️ Timing
Total: 718ms | 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 such as learnx.com, learnatest.com, lexpr.es, ec2-3-221-14-183.compute-1.amazonaws.com and prepstephighschool.com share IPs 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 at least partially shares name servers with other domains, for instance diligenceengine.ca, konnectme2.com, pedigreeklub.sk, theredpin.com and foramelia.com.
these name servers are often used in conjunction with the name servers ns-733.awsdns-27.net.
Host names with two IP numbers: ns-162.awsdns-20.com points to 2600:9000:5300:a200::1 and 205.251.192.162; ns-1021.awsdns-63.net points to 2600:9000:5303:fd00::1 and 205.251.195.253; ns-1136.awsdns-14.org points to 2600:9000:5304:7000::1 and 205.251.196.112; ns-1732.awsdns-24.co.uk points to 2600:9000:5306:c400::1 and 205.251.198.196.