sylvan.bio - robtex.com
sylvan.bio
bio
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.bio ⭐ | ||||||
| NS | a2.nic.bio | ||||||
| NS | b0.nic.bio | ||||||
| NS | c0.nic.bio | ||||||
| SOA | a0.nic.biohostmaster@donuts.email serial=1784269121 | ||||||
Same first word
Similar names
navlys.com |
vansly.com |
lyvans.org |
lyvans.com |
lsnavy.net |
syanlv.com |
salvyn.com |
slavny.ru |
synval.com |
lvanys.org |
valsyn.com |
savnly.com |
vanlys.com |
DNS History
5 records (5 active, 0 former)
●NSns21.domaincontrol.com2026-04-07 → 2026-07-17 · 2 obs
● 2026-07-17 06:33:32
●NSns22.domaincontrol.com2026-04-07 → 2026-07-17 · 2 obs
● 2026-07-17 06:33:32
●MXblazei.sylvaninc.com2026-04-07 → 2026-07-17 · 2 obs
● 2026-07-17 06:33:32
●MXsylvan-bio.mail.protection.outlook.com2026-04-07 → 2026-07-17 · 2 obs
● 2026-07-17 06:33:32
●A167.99.222.412026-04-07 → 2026-07-17 · 2 obs
● 2026-07-17 06:33:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| bio | a0.nic.bio, a2.nic.bio, b0.nic.bio, c0.nic.bio | 8 records |
| sylvan.bio | ns22.domaincontrol.com, ns21.domaincontrol.com | - |
✅ Authoritative Response
Server:97.74.100.11
NS records: ns22.domaincontrol.com, ns21.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sylvan.bio (unsigned zone)
⏱️ Timing
Total: 416ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 167.99.222.41 |
| NS | 2 | ns21.domaincontrol.com, ns22.domaincontrol.com |
| MX | 2 | blazei.sylvaninc.com (pri: 10), sylvan-bio.mail.protection.outlook.com ( |
| TXT | 1 | v=spf1 ip4:206.67.234.104 ip4:206.67.234 |
| SOA | 1 | ns21.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a0.nic.bio, a2.nic.bio, b0.nic.bio...)
Analysis
IP Addresses
sylvan.bio directs to one IP number, which is 167.99.222.41.
Among others, verloskundigenbudel-maarheeze.nl, www.sylvaninc.com, lttbv.nl and sylvaninc.com resolve to the same IP numbers as sylvan.bio.
Name Servers
sylvan.bio uses two name servers for its delegation: ns21.domaincontrol.com and ns22.domaincontrol.com.
sylvan.bio has the same name server delegation as a number of other domains, such as nollerarchitects.com.au, melstack.com, relicoventures.com and two more.
The two host names ns21.domaincontrol.com and ns22.domaincontrol.com each have a pair of IP addresses: ns21.domaincontrol.com has 97.74.100.11 and 2603:5:2141::b, and ns22.domaincontrol.com has 173.201.68.11 and 2603:5:2241::b.
Mail Servers
The MX records for sylvan.bio point to two mail servers: blazei.sylvaninc.com and sylvan-bio.mail.protection.outlook.com.
sylvan.bio shares at least some of its mail servers with other domains — for example altpost.net, sylvanbio.com, sylvan.fr and two more.
These mail servers tend to be used in conjunction with ostreatus.sylvaninc.com, sylvaninc-com.mail.protection.outlook.com, sylvan-fr.mail.protection.outlook.com and two additional mail servers.
Host names resolving to 8 IP numbers:
Hostname sylvan-bio.mail.protection.outlook.com directs to 52.101.68.5, 52.101.68.25 and 52.101.68.27 along with 5 other IP addresses.
Hosts that resolve to one IP address:
blazei.sylvaninc.com has the IP address 206.67.234.104.