ispb.org - dns.ninja
ispb.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 129.11.80.15🇬🇧 JANET129.11.0.0/16 University of Leeds UNITED KINGDOM | ||||||
| PTR | fbspcu03.leeds.ac.uk | ||||||
| NS | dns.leeds.ac.uk ⭐ ⚠️ Not in parent delegation | ||||||
| A | 129.11.21.16🇬🇧 JANET129.11.0.0/16 University of Leeds UNITED KINGDOM | ||||||
| PTR | dns.leeds.ac.uk | ||||||
| NS | ucsdns1.leeds.ac.uk | ||||||
| A | 2001:630:62::159:114🇬🇧 JANET2001:630::/32 JANET(UK) Network Operations Centre Third floor 15 Fetter Lane London EC4A 1BW United Kingdom | ||||||
| A | 129.11.159.114🇬🇧 JANET129.11.0.0/16 University of Leeds UNITED KINGDOM | ||||||
| PTR | ucsdns1.leeds.ac.uk | ||||||
| NS | ucsdns2.leeds.ac.uk | ||||||
| A | 2001:630:62::159:122🇬🇧 JANET2001:630::/32 JANET(UK) Network Operations Centre Third floor 15 Fetter Lane London EC4A 1BW United Kingdom | ||||||
| PTR | ucsdns2.leeds.ac.uk | ||||||
| A | 129.11.159.122🇬🇧 JANET129.11.0.0/16 University of Leeds UNITED KINGDOM | ||||||
| PTR | ucsdns2.leeds.ac.uk | ||||||
| SOA | dns.leeds.ac.ukhostmaster@ucsdns.leeds.ac.uk serial=1344947 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786514560 | ||||||
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●NSdns.leeds.ac.uk2018-06-21 → 2026-08-12 · 3 obs
● 2018-06-21 19:58:28
● 2026-08-12 06:16:38
○NSucsdns.leeds.ac.uk2015-06-03 → 2021-10-31 · 6 obs
● 2016-11-04 04:49:36
○ 2018-06-21 19:58:28
● 2021-10-31 10:39:26
○ 2026-03-18 17:53:06
○ 2026-08-12 06:16:38
●NSucsdns1.leeds.ac.uk2015-06-03 → 2026-08-12 · 2 obs
● 2026-08-12 06:16:38
●NSucsdns2.leeds.ac.uk2015-06-03 → 2026-08-12 · 2 obs
● 2026-08-12 06:16:38
○A129.11.206.1642015-06-03 → 2021-10-31 · 4 obs
● 2021-10-31 10:39:26
○ 2026-03-18 17:53:06
○ 2026-08-12 06:16:38
●A129.11.80.152026-03-18 → 2026-08-12 · 3 obs
● 2026-03-18 17:53:06
● 2026-08-12 06:16:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| ispb.org | ucsdns1.leeds.ac.uk, ucsdns2.leeds.ac.uk | - |
✅ Authoritative Response
Server:129.11.159.122
NS records: ucsdns1.leeds.ac.uk, ucsdns2.leeds.ac.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ispb.org (unsigned zone)
⏱️ Timing
Total: 718ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 129.11.80.15 |
| NS | 3 | ucsdns1.leeds.ac.uk, ucsdns2.leeds.ac.uk... |
| SOA | 1 | dns.leeds.ac.uk hostmaster.ucsdns.leeds. |
Analysis
IP Addresses
ispb.org points to a single IP number: 129.11.80.15.
Other host names, such as fbspcu03.leeds.ac.uk, share IP numbers with ispb.org.
Name Servers
ispb.org is delegated to three name servers: dns.leeds.ac.uk, ucsdns1.leeds.ac.uk and ucsdns2.leeds.ac.uk.
The name servers of ispb.org overlap at least partially with those of other domains — among them 232.11.129.in-addr.arpa, 108.11.129.in-addr.arpa, alps-cetl.ac.uk and two more.
These name servers commonly co-occur with the name servers ucsdns.leeds.ac.uk, ns4.ja.net, ns12.ja.net and ddi01c.leeds.ac.uk.
Host names with two IP numbers:
ucsdns1.leeds.ac.uk points to 129.11.159.114 and 2001:630:62::159:114.
ucsdns2.leeds.ac.uk points to 129.11.159.122 and 2001:630:62::159:122.
Host names pointing to a single IP address:
dns.leeds.ac.uk points to 129.11.21.16.