certu.com - dns.ninja
certu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.91.197.27🇻🇬 CONFLUENCE-NETWORK-INC208.91.197.0/24 Confluence Networks Route Object | ||||||
| NS | ns11.worldnic.com ⭐ | ||||||
| A | 162.159.26.214Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns12.worldnic.com | ||||||
| A | 162.159.27.150Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mx001.netsol.xion.oxcs.net ⭐ | ||||||
| MX | mx002.netsol.xion.oxcs.net ⭐ | ||||||
| MX | mx003.netsol.xion.oxcs.net ⭐ | ||||||
| A | 51.81.206.108🇺🇸 OVH51.81.128.0/17 Hosting route | ||||||
| PTR | mx33.oxsus-vadesecure.net | ||||||
| MX | mx004.netsol.xion.oxcs.net ⭐ | ||||||
| TXT | v=spf1 include:spf.registeredsite.com include:spf.cloudus.oxcs.net ~all | ||||||
| SOA | NS11.WORLDNIC.comnamehost@WORLDNIC.com serial=122102610 | ||||||
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=1781718100 | ||||||
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NSns11.worldnic.com2015-05-09 → 2026-06-17 · 2 obs
● 2026-06-17 17:53:42
●NSns12.worldnic.com2015-05-09 → 2026-06-17 · 2 obs
● 2026-06-17 17:53:42
○MXinbound.certu.com.netsolmail.net2015-05-09 → 2017-03-28 · 4 obs
● 2017-03-28 05:33:48
○ 2020-01-21 21:36:28
○ 2026-06-17 17:53:42
●MXmx001.netsol.xion.oxcs.net2026-04-14 → 2026-06-17 · 3 obs
● 2026-04-14 06:32:22
● 2026-06-17 17:53:42
●MXmx002.netsol.xion.oxcs.net2026-04-14 → 2026-06-17 · 3 obs
● 2026-04-14 06:32:22
● 2026-06-17 17:53:42
●MXmx003.netsol.xion.oxcs.net2026-04-14 → 2026-06-17 · 3 obs
● 2026-04-14 06:32:22
● 2026-06-17 17:53:42
●MXmx004.netsol.xion.oxcs.net2026-04-14 → 2026-06-17 · 3 obs
● 2026-04-14 06:32:22
● 2026-06-17 17:53:42
○MXmx1.netsolmail.net2020-01-21 → 2020-01-21 · 4 obs
● 2020-01-21 21:36:28
○ 2026-04-14 06:32:22
○ 2026-06-17 17:53:42
●A208.91.197.272015-05-09 → 2026-06-17 · 2 obs
● 2026-06-17 17:53:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| certu.com | ns11.worldnic.com, ns12.worldnic.com | 2 records |
✅ Authoritative Response
Server:162.159.26.214
NS records: ns11.worldnic.com, ns12.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certu.com (unsigned zone)
⏱️ Timing
Total: 279ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.91.197.27 |
| NS | 2 | ns11.worldnic.com, ns12.worldnic.com |
| MX | 4 | mx003.netsol.xion.oxcs.net (pri: 10), mx002.netsol.xion.oxcs.net (pri: 10)... |
| TXT | 1 | v=spf1 include:spf.registeredsite.com in |
| SOA | 1 | NS11.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns11.worldnic.com, ns12.worldnic.com)
Analysis
IP Addresses
certu.com has exactly one IP address — 208.91.197.27.
wavecontactlenses.biz, mushroomasia.com, www.psponline.net plus two other host names have IP numbers in common with certu.com.
Name Servers
certu.com uses two name servers for its delegation: ns11.worldnic.com and ns12.worldnic.com.
The name server configuration of certu.com is shared with other domains, for instance brookstone.be, voodoosportfishing.net, infectiousdiseaseonline.com and two others.
ns11.worldnic.com and ns12.worldnic.com each resolve to one IP number: ns11.worldnic.com points to 162.159.26.214 and ns12.worldnic.com points to 162.159.27.150.
Mail Servers
certu.com has four mail servers: mx001.netsol.xion.oxcs.net, mx002.netsol.xion.oxcs.net, mx003.netsol.xion.oxcs.net and mx004.netsol.xion.oxcs.net.
At least some of the mail servers used by certu.com are shared with other domains: fmccc.net, scelectronics.com, ez4us.org and two others among them.
Host names resolving to a single IP address:
mx003.netsol.xion.oxcs.net has the IP address 51.81.206.108.