sys4u.com - robtex.com
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sys4u.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 209.17.116.7🇺🇸 AS19871 | ||||||
| PTR | mycpaa.org | ||||||
| NS | ns21.worldnic.com ⭐ | ||||||
| A | 162.159.26.132 Cloudflare | ||||||
| PTR | ip-162-159-26-132.defastlink.net | ||||||
| NS | ns22.worldnic.com | ||||||
| A | 162.159.27.77 Cloudflare | ||||||
| PTR | ip-162-159-27-77.defastlink.net | ||||||
| MX | mx001.netsol.xion.oxcs.net ⭐ | ||||||
| A | 173.45.18.128🇨🇦 AMC | ||||||
| PTR | mx31.oxsus-vadesecure.net | ||||||
| MX | mx002.netsol.xion.oxcs.net ⭐ | ||||||
| A | 173.45.18.129🇨🇦 AMC | ||||||
| PTR | mx32.oxsus-vadesecure.net | ||||||
| MX | mx003.netsol.xion.oxcs.net ⭐ | ||||||
| A | 51.81.206.108🇺🇸 OVH | ||||||
| PTR | mx33.oxsus-vadesecure.net | ||||||
| MX | mx004.netsol.xion.oxcs.net ⭐ | ||||||
| A | 51.81.206.109🇺🇸 OVH | ||||||
| PTR | mx34.oxsus-vadesecure.net | ||||||
| TXT | v=spf1 include:spf.registeredsite.com include:spf.cloudus.oxcs.net ~all | ||||||
| SOA | NS21.WORLDNIC.comnamehost@WORLDNIC@com serial=122102611 | ||||||
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=1770918430 | ||||||
Up
cmf.sys4u.com |
Same first word
DNS History
9 records (7 active, 2 former)
●NSns21.worldnic.com2015-08-12 → 2026-02-15 · 2 obs
● 2026-02-15 15:58:42
●NSns22.worldnic.com2015-08-12 → 2026-02-15 · 2 obs
● 2026-02-15 15:58:42
○MXinbound.sys4u.com.netsolmail.net2015-08-12 → 2016-12-30 · 4 obs
● 2016-12-30 23:55:08
○ 2018-01-03 10:38:32
○ 2026-02-15 15:58:42
●MXmx001.netsol.xion.oxcs.net2026-02-15 → 2026-02-15 · 2 obs
● 2026-02-15 15:58:42
●MXmx002.netsol.xion.oxcs.net2026-02-15 → 2026-02-15 · 2 obs
● 2026-02-15 15:58:42
●MXmx003.netsol.xion.oxcs.net2026-02-15 → 2026-02-15 · 2 obs
● 2026-02-15 15:58:42
●MXmx004.netsol.xion.oxcs.net2026-02-15 → 2026-02-15 · 2 obs
● 2026-02-15 15:58:42
○MXmx1.netsolmail.net2018-01-03 → 2018-01-03 · 3 obs
● 2018-01-03 10:38:32
○ 2026-02-15 15:58:42
●A209.17.116.72015-08-12 → 2026-02-15 · 2 obs
● 2026-02-15 15:58:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net... | - |
| sys4u.com | ns21.worldnic.com, ns22.worldnic.com | 2 records |
✅ Authoritative Response
Server: 162.159.26.132
NS records: ns21.worldnic.com, ns22.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sys4u.com (unsigned zone)
⏱️ Timing
Total: 397ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 209.17.116.7 |
| NS | 2 | ns22.worldnic.com, ns21.worldnic.com |
| MX | 4 | mx001.netsol.xion.oxcs.net (pri: 10), mx003.netsol.xion.oxcs.net (pri: 10)... |
| TXT | 1 | v=spf1 include:spf.registeredsite.com in |
| SOA | 1 | NS21.WORLDNIC.com namehost@WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns21.worldnic.com, ns22.worldnic.com)
AI analysis
cmf.sys4u.com is a child of sys4u.com.
sys4u.com resolves to one IP number: 209.17.116.7.
Other host names, for instance omaralami.com, sagepackaging.com, wernererhard.es, 02d7c34.netsolhost.com and wernererhard.cn share IP numbers with sys4u.com.
sys4u.com's delegation uses two name servers: ns21.worldnic.com and ns22.worldnic.com.
sys4u.com uses the same name server setup as other domains, such as ridinginstructor.net, optofx.com, mikes-guns.com, pcnb.com and caseylegal.com.
Host names with a single IP address: ns21.worldnic.com points to 162.159.26.132; ns22.worldnic.com points to 162.159.27.77.
sys4u.com is handled by four mail servers: mx001.netsol.xion.oxcs.net, mx002.netsol.xion.oxcs.net, mx003.netsol.xion.oxcs.net and mx004.netsol.xion.oxcs.net.
sys4u.com shares at least some mail servers with other domains, for example express-foods.com, true-residential.com, gps-surveyor.com, caperformance.com and segcor.com.
Host names with one IP number:
mx001.netsol.xion.oxcs.net points to 173.45.18.128; mx002.netsol.xion.oxcs.net points to 173.45.18.129; mx003.netsol.xion.oxcs.net points to 51.81.206.108; mx004.netsol.xion.oxcs.net points to 51.81.206.109.