sesync.us - dns.ninja
sesync.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 128.8.120.238🇺🇸 UMCP128.8.0.0/16 University of Maryland Division of Information Technology College Park, MD 20742 United States | ||||||
| PTR | sesync-vip.umiacs.umd.edu | ||||||
| NS | whizbang.umiacs.umd.edu ⭐ ⚠️ Not in parent delegation | ||||||
| A | 128.8.120.19🇺🇸 UMCP128.8.0.0/16 University of Maryland Division of Information Technology College Park, MD 20742 United States | ||||||
| PTR | whizbang.umiacs.umd.edu | ||||||
| NS | dnskrb3.umiacs.umd.edu ⚠️ Not in parent delegation | ||||||
| A | 128.8.132.75🇺🇸 UMCP128.8.0.0/16 University of Maryland Division of Information Technology College Park, MD 20742 United States | ||||||
| PTR | dnskrb3.umiacs.umd.edu | ||||||
| NS | sesyncdns1.umiacs.umd.edu ⚠️ Not in zone NS records | ||||||
| NS | sesyncdns2.umiacs.umd.edu ⚠️ Not in zone NS records | ||||||
| NS | sesyncdns3.umiacs.umd.edu ⚠️ Not in zone NS records | ||||||
| NS | smog.umiacs.umd.edu | ||||||
| A | 50.16.200.217🇺🇸 Amazon50.16.0.0/16 EC2 IAD prefix | ||||||
| PTR | smog.umiacs.umd.edu | ||||||
| NS | urchin.umiacs.umd.edu ⚠️ Not in parent delegation | ||||||
| A | 128.8.120.50🇺🇸 UMCP128.8.0.0/16 University of Maryland Division of Information Technology College Park, MD 20742 United States | ||||||
| PTR | urchin.umiacs.umd.edu | ||||||
| TXT | F0AE2C94EDB3F8DEB8DF53191C7281FC | ||||||
| SOA | whizbang.umiacs.umd.eduhostmaster@sesync.org 2026-06-02 #0 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1783993031 | ||||||
Same first word
Similar names
DNS History
12 records (8 active, 4 former)
●NSdnskrb3.umiacs.umd.edu2026-02-22 → 2026-07-14 · 3 obs
● 2026-02-22 15:33:00
● 2026-07-14 02:08:32
●NSsesyncdns1.umiacs.umd.edu2015-08-03 → 2026-07-14 · 2 obs
● 2026-07-14 02:08:32
●NSsesyncdns2.umiacs.umd.edu2015-08-03 → 2026-07-14 · 2 obs
● 2026-07-14 02:08:32
●NSsesyncdns3.umiacs.umd.edu2015-08-03 → 2026-07-14 · 6 obs
● 2016-03-01 05:54:58
○ 2016-07-18 04:17:32
○ 2017-10-13 22:36:46
● 2026-02-22 15:33:00
● 2026-07-14 02:08:32
●NSsmog.umiacs.umd.edu2016-07-18 → 2026-07-14 · 3 obs
● 2016-07-18 04:17:32
● 2026-07-14 02:08:32
●NSurchin.umiacs.umd.edu2026-02-22 → 2026-07-14 · 3 obs
● 2026-02-22 15:33:00
● 2026-07-14 02:08:32
●NSwhizbang.umiacs.umd.edu2026-02-22 → 2026-07-14 · 3 obs
● 2026-02-22 15:33:00
● 2026-07-14 02:08:32
○MXbubs.umiacs.umd.edu2015-08-03 → 2026-02-22 · 4 obs
● 2026-02-22 15:33:00
○ 2026-04-08 15:20:48
○ 2026-07-14 02:08:32
○MXhomsar.umiacs.umd.edu2015-08-03 → 2017-10-13 · 4 obs
● 2017-10-13 22:36:46
○ 2026-02-22 15:33:00
○ 2026-07-14 02:08:32
○MXpompom.umiacs.umd.edu2015-08-03 → 2026-02-22 · 4 obs
● 2026-02-22 15:33:00
○ 2026-04-08 15:20:48
○ 2026-07-14 02:08:32
●A128.8.120.2382026-04-08 → 2026-07-14 · 3 obs
● 2026-04-08 15:20:48
● 2026-07-14 02:08:32
○A129.2.30.762015-08-03 → 2017-10-13 · 4 obs
● 2017-10-13 22:36:46
○ 2026-02-22 15:33:00
○ 2026-07-14 02:08:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| sesync.us | sesyncdns1.umiacs.umd.edu, sesyncdns2.umiacs.umd.edu, sesyncdns3.umiacs.umd.edu, smog.umiacs.umd.edu | - |
✅ Authoritative Response
Server:50.16.200.217
NS records: sesyncdns1.umiacs.umd.edu, sesyncdns2.umiacs.umd.edu, sesyncdns3.umiacs.umd.edu, smog.umiacs.umd.edu
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sesync.us (unsigned zone)
⏱️ Timing
Total: 422ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 128.8.120.238 |
| NS | 4 | whizbang.umiacs.umd.edu, smog.umiacs.umd.edu... |
| TXT | 1 | F0AE2C94EDB3F8DEB8DF53191C7281FC |
| SOA | 1 | whizbang.umiacs.umd.edu hostmaster.sesyn |
Analysis
IP Addresses
sesync.us directs to one IP number, which is 128.8.120.238.
sesync.org and sesync-vip.umiacs.umd.edu, along with other host names, share IP addresses with sesync.us.
Name Servers
sesync.us is served by 7 authoritative name servers — among them dnskrb3.umiacs.umd.edu, sesyncdns1.umiacs.umd.edu, sesyncdns2.umiacs.umd.edu and 4 others.
sesync.us partially shares its NS delegation with several other domains, including 132.8.128.in-addr.arpa, umiacs.umd.edu, gembox.cbcb.umd.edu and two others.
These name servers are routinely co-deployed with the name servers urchin.umiacs.umd.edu, whizbang.umiacs.umd.edu, smog.umiacs.umd.edu and two others.
dnskrb3.umiacs.umd.edu resolves to 128.8.132.75. smog.umiacs.umd.edu resolves to 50.16.200.217. urchin.umiacs.umd.edu resolves to 128.8.120.50. whizbang.umiacs.umd.edu resolves to 128.8.120.19. All four hosts carry exactly one IP address.