t-tdc.com - robtex.com
t-tdc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.230.253.88🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | webltw88.alpha-mail.jp | ||||||
| NS | kotetsu.alpha-lt.net ⭐ | ||||||
| A | 157.205.252.6🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns01.alpha-mail.jp | ||||||
| NS | amdns03.alpha-mail.jp | ||||||
| A | 216.230.254.112🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | amdns03.alpha-mail.jp | ||||||
| NS | tsukuba.aics.ne.jp | ||||||
| A | 157.205.252.7🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns02.alpha-mail.jp | ||||||
| MX | ampub01.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.1🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub01.alpha-mail.net | ||||||
| MX | ampub02.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.2🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub02.alpha-mail.net | ||||||
| MX | ampub03.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.3🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub03.alpha-mail.net | ||||||
| MX | ampub04.alpha-mail.net(50) | ||||||
| A | 216.230.254.4🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub04.alpha-mail.net | ||||||
| TXT | v=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:2... | ||||||
| SOA | kotetsu.alpha-lt.netpostmaster@alpha-web.ne.jp 2023-08-03 #8 | ||||||
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=1774978767 | ||||||
Subdomains
www.t-tdc.com |
Same first word
t-tdc.com |
Similar names
DNS History
9 records (8 active, 1 former)
●NSamdns03.alpha-mail.jp2026-02-23 → 2026-03-31 · 3 obs
● 2026-02-23 15:15:10
● 2026-03-31 17:55:50
●NSkotetsu.alpha-lt.net2015-08-17 → 2026-03-31 · 2 obs
● 2026-03-31 17:55:50
●NStsukuba.aics.ne.jp2015-08-17 → 2026-03-31 · 2 obs
● 2026-03-31 17:55:50
●MXampub01.alpha-mail.net2015-08-17 → 2026-03-31 · 2 obs
● 2026-03-31 17:55:50
●MXampub02.alpha-mail.net2015-08-17 → 2026-03-31 · 2 obs
● 2026-03-31 17:55:50
●MXampub03.alpha-mail.net2015-08-17 → 2026-03-31 · 2 obs
● 2026-03-31 17:55:50
●MXampub04.alpha-mail.net2026-02-23 → 2026-03-31 · 3 obs
● 2026-02-23 15:15:10
● 2026-03-31 17:55:50
○A216.230.250.1622015-08-17 → 2018-03-07 · 4 obs
● 2018-03-07 21:25:58
○ 2026-02-23 15:15:10
○ 2026-03-31 17:55:50
●A216.230.253.882026-02-23 → 2026-03-31 · 3 obs
● 2026-02-23 15:15:10
● 2026-03-31 17:55:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| t-tdc.com | kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp | - |
✅ Authoritative Response
Server:157.205.252.7
NS records: kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for t-tdc.com (unsigned zone)
⏱️ Timing
Total: 948ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.230.253.88 |
| NS | 3 | amdns03.alpha-mail.jp, tsukuba.aics.ne.jp... |
| MX | 4 | ampub01.alpha-mail.net (pri: 10), ampub04.alpha-mail.net (pri: 50)... |
| TXT | 1 | v=spf1 ip4:157.205.202.0/24 ip4:157.205. |
| SOA | 1 | kotetsu.alpha-lt.net postmaster.alpha-we |
Analysis
Hierarchy
The parent of www.t-tdc.com is t-tdc.com.
IP Addresses
t-tdc.com points to an IP address: 216.230.253.88.
other host names include uni-tc.com, jetl.co.jp, l-o.jp, pul.co.jp and www.kjp.co.jp; they share IP numbers with t-tdc.com.
Name Servers
t-tdc.com is delegated to three name servers amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.
t-tdc.com at least partially shares name servers with other domains, for instance toa-kiki.co.jp, ymks.co.jp, nankokai.or.jp, mizuba.jp and hiplast.co.jp.
Host names with one IP:
amdns03.alpha-mail.jp points to 216.230.254.112; kotetsu.alpha-lt.net points to 157.205.252.6; tsukuba.aics.ne.jp points to 157.205.252.7.
Mail Servers
t-tdc.com is handled by four mail servers: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.
t-tdc.com shares at least partially some mail servers with other domains, for instance live-if.com, kitanihon-keibi.com, supportplus.biz, fb-trading.co.jp and gigasys.co.jp.
Host names with one IP number: ampub01.alpha-mail.net points to: 216.230.254.1; ampub02.alpha-mail.net points to: 216.230.254.2; ampub03.alpha-mail.net points to: 216.230.254.3; ampub04.alpha-mail.net points to: 216.230.254.4.