sigmakao.com - robtex.com
sigmakao.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 61.218.225.78🇹🇼 HiNet61.218.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | sigmakao.com | ||||||
| NS | domino-k2a ⭐ | ||||||
| NS | domino-k2a.sigmakao.com ⚠️ Not in parent delegation | ||||||
| A | 61.218.225.78🇹🇼 HiNet61.218.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | sigmakao.com | ||||||
| NS | domino-k3.sigmakao.com ⚠️ Not in parent delegation | ||||||
| A | 61.218.225.77🇹🇼 HiNet61.218.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | sigmakao.com | ||||||
| NS | host.sigmakao.com ⚠️ Not in zone NS records | ||||||
| NS | ns.sigmakao.com ⚠️ Not in parent delegation | ||||||
| NS | ns2.sigmakao.com ⚠️ Not in zone NS records | ||||||
| A | 211.23.250.62🇹🇼 HiNet211.23.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | 211-23-250-62.hinet-ip.hinet.net | ||||||
| MX | spam1.sigmakao.com ⭐ | ||||||
| A | 61.218.225.75🇹🇼 HiNet61.218.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | spam1.sigmakao.com | ||||||
| MX | spam.sigmakao.com(20) | ||||||
| A | 61.218.225.75🇹🇼 HiNet61.218.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | spam1.sigmakao.com | ||||||
| TXT | google-site-verification=GDAAgB6zEcyegJbBoY81GELIn74BylA2y4CTKjtFjK8 | ||||||
| TXT | v=spf1 a mx ptr ~all | ||||||
| SOA | domino-k2akmis@sigmakao.com 2014-01-28 #44 | ||||||
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=1778740121 | ||||||
PTR for
Subdomains
domino-k3.sigmakao.com |
domino-k.sigmakao.com |
ns2.sigmakao.com |
ns.sigmakao.com |
spam.sigmakao.com |
spam1.sigmakao.com |
domino-k2a.sigmakao.com |
Same first word
sigmakao.com |
Similar names
sagamiko.jp |
gaokimsa.vn |
amogiska.com |
sagamiko.sakura.ne.jp |
sagamiko.co.jp |
gokasima.com |
asimakog.eu.org |
askamigo.com |
kagisoam.co.za |
DNS History
20 records (9 active, 11 former)
○NSdns.sigmakao.com2009-01-16 → 2009-01-16 · 3 obs
● 2009-01-16 20:01:56
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
●NSdomino-k2a2026-02-15 → 2026-05-14 · 3 obs
○ 2017-06-22 22:14:54
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
●NSdomino-k2a.sigmakao.com2015-12-23 → 2026-05-14 · 3 obs
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
●NSdomino-k3.sigmakao.com2015-12-23 → 2026-05-14 · 3 obs
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
○NSdomino-s-new.sigmasha.com2015-07-24 → 2015-07-24 · 4 obs
○ 2009-01-16 20:01:56
● 2015-07-24 08:56:20
○ 2015-12-23 18:04:10
○ 2026-05-14 06:38:36
● 2015-07-24 08:56:20
○ 2015-12-23 18:04:10
○ 2026-05-14 06:38:36
●NShost.sigmakao.com2026-02-15 → 2026-05-14 · 3 obs
○ 2017-06-22 22:14:54
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
○NSmail.sigmakao.com2009-01-16 → 2009-01-16 · 3 obs
● 2009-01-16 20:01:56
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
●NSns.sigmakao.com2015-07-24 → 2026-05-14 · 6 obs
○ 2009-01-16 20:01:56
● 2015-07-24 08:56:20
○ 2015-12-23 18:04:10
○ 2017-06-22 22:14:54
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
● 2015-07-24 08:56:20
○ 2015-12-23 18:04:10
○ 2017-06-22 22:14:54
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
●NSns2.sigmakao.com2015-12-23 → 2026-05-14 · 3 obs
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
○NSns2.sigmasha.com2015-07-24 → 2015-07-24 · 4 obs
○ 2009-01-16 20:01:56
● 2015-07-24 08:56:20
○ 2015-12-23 18:04:10
○ 2026-05-14 06:38:36
● 2015-07-24 08:56:20
○ 2015-12-23 18:04:10
○ 2026-05-14 06:38:36
○MXdomino-k.sigmakao.com2015-12-23 → 2016-08-23 · 5 obs
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2016-08-23 16:55:38
○ 2017-06-22 22:14:54
○ 2026-05-14 06:38:36
● 2015-12-23 18:04:10
● 2016-08-23 16:55:38
○ 2017-06-22 22:14:54
○ 2026-05-14 06:38:36
○MXdomino-k2a.sigmakao.com2015-12-23 → 2016-08-23 · 5 obs
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2016-08-23 16:55:38
○ 2017-06-22 22:14:54
○ 2026-05-14 06:38:36
● 2015-12-23 18:04:10
● 2016-08-23 16:55:38
○ 2017-06-22 22:14:54
○ 2026-05-14 06:38:36
●MXspam.sigmakao.com2009-01-16 → 2026-05-14 · 4 obs
● 2009-01-16 20:01:56
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2026-05-14 06:38:36
●MXspam1.sigmakao.com2026-02-15 → 2026-05-14 · 3 obs
○ 2017-06-22 22:14:54
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
○A192.168.1.72009-01-16 → 2009-01-16 · 3 obs
● 2009-01-16 20:01:56
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○A192.168.1.82009-01-16 → 2009-01-16 · 3 obs
● 2009-01-16 20:01:56
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○A210.244.216.1302009-01-16 → 2009-01-16 · 3 obs
● 2009-01-16 20:01:56
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○A210.244.216.1312009-01-16 → 2009-01-16 · 3 obs
● 2009-01-16 20:01:56
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○ 2015-07-24 08:56:20
○ 2026-05-14 06:38:36
○A61.218.225.742015-12-23 → 2017-06-22 · 5 obs
○ 2015-07-24 08:56:20
● 2015-12-23 18:04:10
● 2017-06-22 22:14:54
○ 2026-02-15 19:21:34
○ 2026-05-14 06:38:36
● 2015-12-23 18:04:10
● 2017-06-22 22:14:54
○ 2026-02-15 19:21:34
○ 2026-05-14 06:38:36
●A61.218.225.782026-02-15 → 2026-05-14 · 3 obs
○ 2017-06-22 22:14:54
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
● 2026-02-15 19:21:34
● 2026-05-14 06:38:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, e.gtld-servers.net... | - |
| sigmakao.com | ns.sigmakao.com, host.sigmakao.com | 2 records |
✅ Authoritative Response
Server:61.218.225.78
NS records: ns.sigmakao.com, host.sigmakao.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sigmakao.com (unsigned zone)
⏱️ Timing
Total: 2120ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 61.218.225.78 |
| NS | 3 | domino-k3.sigmakao.com, ns2.sigmakao.com... |
| MX | 2 | spam.sigmakao.com (pri: 10), spam1.sigmakao.com (pri: 20) |
| TXT | 2 | v=spf1 a mx ptr ~all, google-site-verification=GDAAgB6zEcyegJb |
| SOA | 1 | domino-k2a kmis.sigmakao.com |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns.sigmakao.com, host.sigmakao.com)
Analysis
Hierarchy
sigmakao.com is a parent of domino-k3.sigmakao.com, domino-k.sigmakao.com, ns2.sigmakao.com, ns.sigmakao.com and spam.sigmakao.com, plus a few other host names.
IP Addresses
sigmakao.com points to a single IP number: 61.218.225.78.
Other host names, for instance domino-k2a.sigmakao.com, share IP numbers with sigmakao.com.
Name Servers
sigmakao.com delegates to six name servers: domino-k2a, domino-k2a.sigmakao.com, domino-k3.sigmakao.com, host.sigmakao.com, ns2.sigmakao.com and ns.sigmakao.com.
Host names with a single IP number:
domino-k2a.sigmakao.com points to 61.218.225.78.
domino-k3.sigmakao.com points to 61.218.225.77.
ns2.sigmakao.com points to 211.23.250.62.
Mail Servers
sigmakao.com is handled by two mail servers: spam1.sigmakao.com and spam.sigmakao.com.
Host names with a single IP number:
spam1.sigmakao.com points to 61.218.225.75.
spam.sigmakao.com points to 61.218.225.75.
Host names pointing to 61.218.225.75: spam1.sigmakao.com and spam.sigmakao.com.