optolearn.com - robtex.com
optolearn.com
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=1774803427 | ||||||
Same first word
optolearn.com |
Similar names
DNS History
9 records (3 active, 6 former)
●NSalex.ns.cloudflare.com2026-03-06 → 2026-03-29 · 3 obs
● 2026-03-06 02:45:16
● 2026-03-29 17:26:34
○NSns1.uk63.siteground.eu2020-02-27 → 2020-02-27 · 3 obs
○ 2026-03-06 02:45:16
○ 2026-03-29 17:26:34
○NSns2.uk63.siteground.eu2020-02-27 → 2020-02-27 · 3 obs
○ 2026-03-06 02:45:16
○ 2026-03-29 17:26:34
●NSvirginia.ns.cloudflare.com2026-03-06 → 2026-03-29 · 3 obs
● 2026-03-06 02:45:16
● 2026-03-29 17:26:34
○MXmx10.mailspamprotection.com2020-02-27 → 2020-02-27 · 3 obs
○ 2026-03-06 02:45:16
○ 2026-03-29 17:26:34
○MXmx20.mailspamprotection.com2020-02-27 → 2020-02-27 · 3 obs
○ 2026-03-06 02:45:16
○ 2026-03-29 17:26:34
○MXmx30.mailspamprotection.com2020-02-27 → 2020-02-27 · 3 obs
○ 2026-03-06 02:45:16
○ 2026-03-29 17:26:34
○A146.66.104.1772020-02-27 → 2020-02-27 · 3 obs
○ 2026-03-06 02:45:16
○ 2026-03-29 17:26:34
●A76.76.21.212026-03-06 → 2026-03-29 · 3 obs
● 2026-03-06 02:45:16
● 2026-03-29 17:26:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net... | - |
| optolearn.com | alex.ns.cloudflare.com, virginia.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.194.37
NS records: alex.ns.cloudflare.com, virginia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optolearn.com (unsigned zone)
⏱️ Timing
Total: 153ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 76.76.21.21 |
| NS | 2 | alex.ns.cloudflare.com, virginia.ns.cloudflare.com |
| SOA | 1 | alex.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (alex.ns.cloudflare.com, alex.ns.cloudflare.com, alex.ns.cloudflare.com...)
Analysis
IP Addresses
optolearn.com points to a single IP: 76.76.21.21.
Other host names, for instance betteracts.com, rosterscope.com, candycode.com, youngvetsclub.com and xtremyblog.com share IP numbers with optolearn.com.
Name Servers
Two name servers alex.ns.cloudflare.com and virginia.ns.cloudflare.com handle delegation for optolearn.com.
optolearn.com uses the same name server setup as other domains, for example catatanpengetahuan.com, pumpkincenterpoodles.com, futsaljakarta.com, panglima4dku139.xyz and 90gradosalinfinito.blog.
optolearn.com partially shares name servers with other domains; examples include sival2.pt, ukprojectfloors.co.uk, ipfly.net, go2feed.com and 9dragons-greatwall.com.
These name servers are often used with the name servers aaron.ns.cloudflare.com and clay.ns.cloudflare.com.
Host names with six IP numbers: alex.ns.cloudflare.com points to: 2606:4700:58::adf5:3b64, 2803:f800:50::6ca2:c164, 2a06:98c1:50::ac40:2164, 108.162.193.100, 172.64.33.100 and 173.245.59.100; virginia.ns.cloudflare.com points to: 2606:4700:50::a29f:2625, 2803:f800:50::6ca2:c225, 2a06:98c1:50::ac40:2225, 108.162.194.37, 162.159.38.37 and 172.64.34.37.