sbgrid.com - robtex.com
sbgrid.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 134.174.140.86🇺🇸 LMANET134.174.0.0/16 784 Memorial Dr Cambridge MA 02139 United States | ||||||
| PTR | crystal.harvard.edu | ||||||
| NS | x.ns.joker.com ⭐ | ||||||
| A | 194.245.103.13🇩🇪 CSL194.245.0.0/16 DE-CSL-GMBH-PA | ||||||
| PTR | x.ns.joker.com | ||||||
| NS | y.ns.joker.com | ||||||
| A | 2a01:4f8:c0c:165b::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | y.ns.joker.com | ||||||
| A | 23.88.49.189🇩🇪 Hetzner23.88.0.0/17 HETZNER-DC | ||||||
| PTR | static.189.49.88.23.clients.your-server.de | ||||||
| NS | z.ns.joker.com | ||||||
| A | 2607:5300:203:7e6d::2222🇨🇦 OVH2607:5300::/32 Hosting route | ||||||
| PTR | z.ns.joker.com | ||||||
| A | 192.95.37.184🇨🇦 OVH192.95.0.0/18 Hosting route | ||||||
| PTR | z.ns.joker.com | ||||||
| SOA | x.ns.joker.comhostmaster@joker.com 2025-03-25 #91 | ||||||
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=1778334696 | ||||||
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
○NSa.ns.joker.com2015-07-09 → 2017-03-28 · 4 obs
● 2017-03-28 11:48:30
○ 2026-03-28 22:30:24
○ 2026-05-09 14:02:12
○NSb.ns.joker.com2015-07-09 → 2017-03-28 · 4 obs
● 2017-03-28 11:48:30
○ 2026-03-28 22:30:24
○ 2026-05-09 14:02:12
○NSc.ns.joker.com2015-07-09 → 2017-03-28 · 4 obs
● 2017-03-28 11:48:30
○ 2026-03-28 22:30:24
○ 2026-05-09 14:02:12
●NSx.ns.joker.com2026-03-28 → 2026-05-09 · 3 obs
● 2026-03-28 22:30:24
● 2026-05-09 14:02:12
●NSy.ns.joker.com2026-03-28 → 2026-05-09 · 3 obs
● 2026-03-28 22:30:24
● 2026-05-09 14:02:12
●NSz.ns.joker.com2026-03-28 → 2026-05-09 · 3 obs
● 2026-03-28 22:30:24
● 2026-05-09 14:02:12
●A134.174.140.862015-07-09 → 2026-05-09 · 2 obs
● 2026-05-09 14:02:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sbgrid.com | x.ns.joker.com, y.ns.joker.com, z.ns.joker.com | 5 records |
✅ Authoritative Response
Server:194.245.103.13
NS records: x.ns.joker.com, y.ns.joker.com, z.ns.joker.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sbgrid.com (unsigned zone)
⏱️ Timing
Total: 360ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 134.174.140.86 |
| NS | 3 | y.ns.joker.com, x.ns.joker.com... |
| SOA | 1 | x.ns.joker.com hostmaster.joker.com |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (x.ns.joker.com, y.ns.joker.com, y.ns.joker.com...)
Analysis
IP Addresses
sbgrid.com resolves to one IP number: 134.174.140.86.
Other host names including biogrids.org, pymolwiki.org, red.dfci.harvard.edu and sbgrid.org share IP numbers with sbgrid.com.
Name Servers
sbgrid.com is delegated to three name servers: x.ns.joker.com, y.ns.joker.com and z.ns.joker.com.
sbgrid.com at least partially shares name servers with other domains, including largebgpcommunities.net, nowyouknow.eu, mariaheller.com, loonys.net and konf.fi.
These name servers are commonly used with a.ns.joker.com, c.ns.joker.com and b.ns.joker.com.
Hosts with two IPs:
y.ns.joker.com points to 2a01:4f8:c0c:165b::1 and 23.88.49.189.
z.ns.joker.com points to 2607:5300:203:7e6d::2222 and 192.95.37.184.
Host with one IP:
x.ns.joker.com points to 194.245.103.13.