learn.java - dns.ninja
learn.java
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.199.108.153🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24 | ||||||
| PTR | cdn-185-199-108-153.github.com | ||||||
| A | 185.199.109.153🇺🇸 Fastly185.199.109.0/24 GitHub - 185.199.109.0/24 | ||||||
| A | 185.199.110.153🇺🇸 Fastly185.199.110.0/24 GitHub - 185.199.110.0/24 | ||||||
| A | 185.199.111.153🇺🇸 Fastly185.199.111.0/24 GitHub - 185.199.111.0/24 | ||||||
| NS | ns1.markmonitor.com ⭐ | ||||||
| A | 2620:10a:80a8::1🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| A | 149.112.160.1🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| NS | ns2.markmonitor.com ⚠️ Not in parent delegation | ||||||
| A | 2001:67c:10b8::1🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net | ||||||
| PTR | ns2.markmonitor.com | ||||||
| A | 176.97.158.1🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net | ||||||
| PTR | ns2.markmonitor.com | ||||||
| NS | ns3.markmonitor.com | ||||||
| A | 2620:10a:80a9::1🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| A | 149.112.161.1🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| NS | ns4.markmonitor.com | ||||||
| A | 2001:67c:1bc::1🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast | ||||||
| PTR | ns1.markmonitor.com | ||||||
| A | 192.174.68.1🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net | ||||||
| PTR | ns1.markmonitor.com | ||||||
| NS | ns5.markmonitor.com ⚠️ Not in zone NS records | ||||||
| A | 2620:10a:80a8::2🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| A | 149.112.160.2🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.markmonitor.comhostmaster@markmonitor.com 2025-03-04 #5 | ||||||
java
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.java ⭐ | ||||||
| NS | a2.nic.java | ||||||
| NS | b0.nic.java | ||||||
| NS | c0.nic.java | ||||||
| SOA | a0.nic.javahostmaster@donuts.email serial=1789593718 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
9 records (9 active, 0 former)
●NSns1.markmonitor.com2026-09-10 → 2026-09-16 · 2 obs
● 2026-09-16 21:31:12
●NSns2.markmonitor.com2026-09-10 → 2026-09-16 · 4 obs
○ 2026-09-11 15:30:14
● 2026-09-15 12:34:46
● 2026-09-16 21:31:12
●NSns3.markmonitor.com2026-09-10 → 2026-09-16 · 2 obs
● 2026-09-16 21:31:12
●NSns4.markmonitor.com2026-09-10 → 2026-09-16 · 2 obs
● 2026-09-16 21:31:12
●NSns5.markmonitor.com2026-09-10 → 2026-09-16 · 2 obs
● 2026-09-16 21:31:12
●A185.199.108.1532026-09-10 → 2026-09-16 · 4 obs
○ 2026-09-11 15:30:14
● 2026-09-15 12:34:46
● 2026-09-16 21:31:12
●A185.199.109.1532026-09-10 → 2026-09-16 · 4 obs
○ 2026-09-11 15:30:14
● 2026-09-15 12:34:46
● 2026-09-16 21:31:12
●A185.199.110.1532026-09-10 → 2026-09-16 · 4 obs
○ 2026-09-11 15:30:14
● 2026-09-15 12:34:46
● 2026-09-16 21:31:12
●A185.199.111.1532026-09-10 → 2026-09-16 · 4 obs
○ 2026-09-11 15:30:14
● 2026-09-15 12:34:46
● 2026-09-16 21:31:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| java | a0.nic.java, a2.nic.java, b0.nic.java, c0.nic.java | 8 records |
| learn.java | ns5.markmonitor.com, ns4.markmonitor.com, ns1.markmonitor.com, ns3.markmonitor.com | - |
✅ Authoritative Response
Server:192.174.68.1
NS records: ns5.markmonitor.com, ns4.markmonitor.com, ns1.markmonitor.com, ns3.markmonitor.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for learn.java (unsigned zone)
⏱️ Timing
Total: 1536ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 185.199.108.153, 185.199.109.153... |
| NS | 4 | ns1.markmonitor.com, ns2.markmonitor.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.markmonitor.com hostmaster.markmonit |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a0.nic.java, a0.nic.java, a2.nic.java...)
Analysis
IP Addresses
learn.java directs to four IP numbers, which are 185.199.108.153, 185.199.109.153, 185.199.110.153 and 185.199.111.153.
Additional host names — www.frohoff.github.io, ivanconstructiongroup.com, dmegatron.github.io and two others — share IP numbers with learn.java.
Name Servers
Delegation for learn.java is to five name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and two others.
At least some of learn.java's name servers are shared with other domains, for example genomed-dna.com, nickelodeon.net.cn, tmgjobs.uk and two more.
These name servers are often deployed together with the name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.
Host names with two IP numbers:
ns1.markmonitor.com maps to two IP addresses — 149.112.160.1 and 2620:10a:80a8::1.
ns2.markmonitor.com maps to two IP addresses — 176.97.158.1 and 2001:67c:10b8::1.
ns3.markmonitor.com maps to two IP addresses — 149.112.161.1 and 2620:10a:80a9::1.
ns4.markmonitor.com maps to two IP addresses — 192.174.68.1 and 2001:67c:1bc::1.
ns5.markmonitor.com maps to two IP addresses — 149.112.160.2 and 2620:10a:80a8::2.