studylearn.net - robtex.com
studylearn.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 133.242.158.214🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | ik1-116-64710.vs.sakura.ne.jp | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | studylearn.net ⭐ | ||||||
| A | 133.242.158.214🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | ik1-116-64710.vs.sakura.ne.jp | ||||||
| TXT | google-site-verification=JpBRaE3vIFkX3RrRGxHPF47PdXv_KWlQqMHlb3lS6jI | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2026-01-02 #3 | ||||||
net
| 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=1774412512 | ||||||
MX for
studylearn.net |
Same first word
studylearn.net |
studylearn.com |
DNS History
9 records (5 active, 4 former)
●NSmaster.dns.ne.jp2026-02-23 → 2026-03-25 · 3 obs
● 2026-02-23 12:58:28
● 2026-03-25 04:40:02
○NSns01.yahoodomains.jp2017-02-11 → 2019-01-17 · 4 obs
● 2019-01-17 17:13:42
○ 2026-02-23 12:58:28
○ 2026-03-25 04:40:02
○NSns02.yahoodomains.jp2017-02-11 → 2019-01-17 · 4 obs
● 2019-01-17 17:13:42
○ 2026-02-23 12:58:28
○ 2026-03-25 04:40:02
●NSns1.dns.ne.jp2026-02-23 → 2026-03-25 · 3 obs
● 2026-02-23 12:58:28
● 2026-03-25 04:40:02
●NSns2.dns.ne.jp2026-02-23 → 2026-03-25 · 3 obs
● 2026-02-23 12:58:28
● 2026-03-25 04:40:02
○MXmailt.do-reg.jp2017-02-11 → 2019-01-17 · 4 obs
● 2019-01-17 17:13:42
○ 2026-02-23 12:58:28
○ 2026-03-25 04:40:02
●MXstudylearn.net2026-02-23 → 2026-03-25 · 3 obs
● 2026-02-23 12:58:28
● 2026-03-25 04:40:02
●A133.242.158.2142026-02-23 → 2026-03-25 · 3 obs
● 2026-02-23 12:58:28
● 2026-03-25 04:40:02
○A210.168.35.32017-02-11 → 2019-01-17 · 4 obs
● 2019-01-17 17:13:42
○ 2026-02-23 12:58:28
○ 2026-03-25 04:40:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net... | - |
| studylearn.net | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studylearn.net (unsigned zone)
⏱️ Timing
Total: 961ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 133.242.158.214 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | studylearn.net (pri: 10) |
| TXT | 1 | google-site-verification=JpBRaE3vIFkX3Rr |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
studylearn.net serves as the mail server for studylearn.net.
IP Addresses
studylearn.net points to a single IP address: 133.242.158.214.
Name Servers
studylearn.net is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
At least part of the name servers for studylearn.net are shared with other domains, for instance lohas.x0.com, fvv.f-counter.com, seo-smd.com, goyo-kiki.com and moscomm.net.
Host names with a single IP:
master.dns.ne.jp points to: 210.224.172.18
ns1.dns.ne.jp points to: 61.211.236.1
ns2.dns.ne.jp points to: 133.167.21.1
Mail Servers
Mail for studylearn.net is handled by a single mail server, studylearn.net.
Host studylearn.net points to IP 133.242.158.214.