java4u.ch - dns.ninja
java4u.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 80.74.147.33🇨🇭 ASN-METANET80.74.144.0/20 METANET AG, Switzerland | ||||||
| PTR | amphora.sui-inter.net | ||||||
| NS | ns1.amphora.sui-inter.net ⭐ | ||||||
| A | 2a00:1128:1:1::147:33🇨🇭 ASN-METANET2a00:1128::/32 METANET AG, Switzerland IPv6 Allocation | ||||||
| PTR | amphora.sui-inter.net | ||||||
| A | 80.74.147.33🇨🇭 ASN-METANET80.74.144.0/20 METANET AG, Switzerland | ||||||
| PTR | amphora.sui-inter.net | ||||||
| NS | ns2.amphora.sui-inter.net | ||||||
| A | 2a00:1128:0:201:2::112🇨🇭 ASN-METANET2a00:1128::/32 METANET AG, Switzerland IPv6 Allocation | ||||||
| A | 46.231.201.112🇨🇭 ASN-METANET46.231.200.0/21 METANET AG, Switzerland | ||||||
| MX | mail.java4u.ch ⭐ | ||||||
| A | 80.74.147.33🇨🇭 ASN-METANET80.74.144.0/20 METANET AG, Switzerland | ||||||
| PTR | amphora.sui-inter.net | ||||||
| TXT | v=spf1 include:_spf.sui-inter.net +mx +a ~all | ||||||
| SOA | ns1.amphora.sui-inter.netdaniel\@sterchi.moonsoft.ch 2025-11-01 #44 | ||||||
ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.ch ⭐ | ||||||
| NS | b.nic.ch | ||||||
| NS | d.nic.ch | ||||||
| NS | e.nic.ch | ||||||
| NS | f.nic.ch | ||||||
| SOA | a.nic.chdns-operation@switch.ch 2026-06-29 #7 | ||||||
Subdomains
mail.java4u.ch |
Same first word
DNS History
6 records (4 active, 2 former)
○NSns.ch-inter.net2015-08-06 → 2018-09-11 · 4 obs
● 2018-09-11 18:52:52
○ 2026-04-03 06:40:14
○ 2026-06-29 02:14:22
●NSns1.amphora.sui-inter.net2026-04-03 → 2026-06-29 · 3 obs
● 2026-04-03 06:40:14
● 2026-06-29 02:14:22
●NSns2.amphora.sui-inter.net2026-04-03 → 2026-06-29 · 3 obs
● 2026-04-03 06:40:14
● 2026-06-29 02:14:22
○NSns2.ch-inter.net2015-08-06 → 2018-09-11 · 4 obs
● 2018-09-11 18:52:52
○ 2026-04-03 06:40:14
○ 2026-06-29 02:14:22
●MXmail.java4u.ch2015-08-06 → 2026-06-29 · 2 obs
● 2026-06-29 02:14:22
●A80.74.147.332015-08-06 → 2026-06-29 · 2 obs
● 2026-06-29 02:14:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | f.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| java4u.ch | ns2.amphora.sui-inter.net, ns1.amphora.sui-inter.net | - |
✅ Authoritative Response
Server:80.74.147.33
NS records: ns2.amphora.sui-inter.net, ns1.amphora.sui-inter.net
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
DS for java4u.ch does not match any DNSKEY
⏱️ Timing
Total: 1143ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 80.74.147.33 |
| NS | 2 | ns1.amphora.sui-inter.net, ns2.amphora.sui-inter.net |
| MX | 1 | mail.java4u.ch (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.sui-inter.net +mx +a |
| SOA | 1 | ns1.amphora.sui-inter.net daniel\.sterch |
Analysis
Hierarchy
mail.java4u.ch is delegated beneath java4u.ch.
IP Addresses
java4u.ch resolves to one IP address: 80.74.147.33.
openup.ru, planetcar.ch, mail.isc-engelberg.ch and two other host names share IP numbers with java4u.ch.
Name Servers
java4u.ch has two authoritative name servers — ns1.amphora.sui-inter.net and ns2.amphora.sui-inter.net.
java4u.ch uses the same name servers as several other domains — among them rompen.ch, i-sam.ch, beyer-chronometrie.com and two more.
There is at least partial name server overlap between java4u.ch and other domains — demozone.ch, ganderevent.ch, xn--mobilesbro-heb.ch and two more among them.
Both ns1.amphora.sui-inter.net and ns2.amphora.sui-inter.net have two IP addresses each. ns1.amphora.sui-inter.net resolves to 80.74.147.33 and 2a00:1128:1:1::147:33; ns2.amphora.sui-inter.net resolves to 46.231.201.112 and 2a00:1128:0:201:2::112.
Mail Servers
Mail for java4u.ch is handled by a single mail server, mail.java4u.ch.
mail.java4u.ch points to one IP number — 80.74.147.33.