our-studyhub.com - robtex.com
our-studyhub.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-1381.awsdns-44.org ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5305:6500::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1381.awsdns-44.org | ||||||
| A | 205.251.197.101🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1381.awsdns-44.org | ||||||
| NS | ns-1728.awsdns-24.co.uk ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5306:c000::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1728.awsdns-24.co.uk | ||||||
| A | 205.251.198.192🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1728.awsdns-24.co.uk | ||||||
| NS | ns-418.awsdns-52.com ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5301:a200::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-418.awsdns-52.com | ||||||
| A | 205.251.193.162🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-418.awsdns-52.com | ||||||
| NS | ns-542.awsdns-03.net ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5302:1e00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-542.awsdns-03.net | ||||||
| A | 205.251.194.30🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-542.awsdns-03.net | ||||||
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=1778347571 | ||||||
Same first word
our-studyhub.com |
DNS History
7 records (4 active, 3 former)
●NSns-1381.awsdns-44.org2015-06-16 → 2026-05-09 · 2 obs
● 2026-05-09 17:51:58
●NSns-1728.awsdns-24.co.uk2015-06-16 → 2026-05-09 · 2 obs
● 2026-05-09 17:51:58
●NSns-418.awsdns-52.com2015-06-16 → 2026-05-09 · 2 obs
● 2026-05-09 17:51:58
●NSns-542.awsdns-03.net2015-06-16 → 2026-05-09 · 2 obs
● 2026-05-09 17:51:58
○MXmx.our-studyhub.com2015-06-16 → 2016-04-06 · 4 obs
● 2016-04-06 07:50:50
○ 2026-03-01 02:31:40
○ 2026-05-09 17:51:58
○A52.74.48.1532015-06-16 → 2015-10-29 · 4 obs
● 2015-10-29 17:55:34
○ 2016-01-15 10:50:04
○ 2026-05-09 17:51:58
○A54.254.149.1662015-06-16 → 2015-06-16 · 3 obs
○ 2015-10-29 17:55:34
○ 2026-05-09 17:51:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net... | - |
| our-studyhub.com | ns-542.awsdns-03.net, ns-418.awsdns-52.com, ns-1728.awsdns-24.co.uk, ns-1381.awsdns-44.org | 2 records |
✅ Authoritative Response
Server:205.251.198.192
NS records: ns-542.awsdns-03.net, ns-418.awsdns-52.com, ns-1728.awsdns-24.co.uk, ns-1381.awsdns-44.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for our-studyhub.com (unsigned zone)
⏱️ Timing
Total: 637ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-418.awsdns-52.com, ns-418.awsdns-52.com)
Analysis
Name Servers
our-studyhub.com is delegated to four name servers: ns-418.awsdns-52.com, ns-542.awsdns-03.net, ns-1381.awsdns-44.org and ns-1728.awsdns-24.co.uk.
our-studyhub.com at least partially shares name servers with other domains, for instance com.parts, 242.68.199.in-addr.arpa, imgwb.com, professionaltitleagent.com and melprinting.com.
Host names with two IP numbers:
ns-418.awsdns-52.com points to 2600:9000:5301:a200::1 and 205.251.193.162; ns-542.awsdns-03.net points to 2600:9000:5302:1e00::1 and 205.251.194.30; ns-1381.awsdns-44.org points to 2600:9000:5305:6500::1 and 205.251.197.101; ns-1728.awsdns-24.co.uk points to 2600:9000:5306:c000::1 and 205.251.198.192.