genzyme.us - robtex.com
genzyme.us
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.sanofi-synthelabo.com ⭐ | ||||||
| A | 2600:9000:5306:7f00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1663.awsdns-15.co.uk | ||||||
| A | 205.251.198.127🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1663.awsdns-15.co.uk | ||||||
| NS | ns2.sanofi-synthelabo.com | ||||||
| A | 2600:9000:5304:9000::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1168.awsdns-18.org | ||||||
| A | 205.251.196.144🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1168.awsdns-18.org | ||||||
| NS | ns3.sanofi-synthelabo.com | ||||||
| A | 2600:9000:5301:e000::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-480.awsdns-60.com | ||||||
| A | 205.251.193.224🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-480.awsdns-60.com | ||||||
| NS | ns4.sanofi-synthelabo.com | ||||||
| A | 2600:9000:5302:3a00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-570.awsdns-07.net | ||||||
| A | 205.251.194.58🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-570.awsdns-07.net | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.sanofi-synthelabo.comgtly-domtech@sanofi.com 2016-03-07 #70 | ||||||
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=1785266530 | ||||||
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.sanofi-synthelabo.com2015-06-16 → 2026-07-28 · 2 obs
● 2026-07-28 20:11:48
●NSns2.sanofi-synthelabo.com2015-06-16 → 2026-07-28 · 2 obs
● 2026-07-28 20:11:48
●NSns3.sanofi-synthelabo.com2015-06-16 → 2026-07-28 · 2 obs
● 2026-07-28 20:11:48
●NSns4.sanofi-synthelabo.com2015-06-16 → 2026-07-28 · 2 obs
● 2026-07-28 20:11:48
○MXfrasldsuext11.aventis.com2015-06-16 → 2016-06-21 · 4 obs
● 2016-06-21 21:12:12
○ 2017-02-17 03:57:00
○ 2026-07-28 20:11:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | x.cctld.us, f.cctld.us, n.cctld.us, m.cctld.us... | - |
| genzyme.us | ns2.sanofi-synthelabo.com, ns3.sanofi-synthelabo.com, ns4.sanofi-synthelabo.com, ns1.sanofi-synthelabo.com | - |
✅ Authoritative Response
Server:205.251.196.144
NS records: ns2.sanofi-synthelabo.com, ns3.sanofi-synthelabo.com, ns4.sanofi-synthelabo.com, ns1.sanofi-synthelabo.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for genzyme.us (unsigned zone)
⏱️ Timing
Total: 401ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1.sanofi-synthelabo.com, ns2.sanofi-synthelabo.com... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.sanofi-synthelabo.com gtly-domtech.s |
Analysis
Name Servers
The domain genzyme.us is delegated to these four name servers: ns1.sanofi-synthelabo.com, ns2.sanofi-synthelabo.com, ns3.sanofi-synthelabo.com and ns4.sanofi-synthelabo.com.
At least some of genzyme.us's name servers are shared with other domains, for example registrynxt.com, alprolix.com, gaucher.de and two more.
Four hostnames, each resolving to a pair of IP addresses: ns1.sanofi-synthelabo.com directs to 205.251.198.127 and 2600:9000:5306:7f00::1; ns2.sanofi-synthelabo.com directs to 205.251.196.144 and 2600:9000:5304:9000::1; ns3.sanofi-synthelabo.com directs to 205.251.193.224 and 2600:9000:5301:e000::1; ns4.sanofi-synthelabo.com directs to 205.251.194.58 and 2600:9000:5302:3a00::1.