book528.net - robtex.com
book528.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.198.91🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2881.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 | book528.net ⭐ | ||||||
| A | 49.212.198.91🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2881.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2881.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2025-12-12 #8 | ||||||
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=1774757257 | ||||||
MX for
book528.net |
Same first word
book528.net |
Similar names
DNS History
12 records (5 active, 7 former)
●NSmaster.dns.ne.jp2020-02-18 → 2026-03-29 · 3 obs
● 2020-02-18 13:33:30
● 2026-03-29 04:26:40
●NSns1.dns.ne.jp2020-02-18 → 2026-03-29 · 3 obs
● 2020-02-18 13:33:30
● 2026-03-29 04:26:40
○NSns1.xserver.jp2015-08-06 → 2017-04-01 · 4 obs
● 2017-04-01 06:27:42
○ 2020-02-18 13:33:30
○ 2026-03-29 04:26:40
●NSns2.dns.ne.jp2020-02-18 → 2026-03-29 · 3 obs
● 2020-02-18 13:33:30
● 2026-03-29 04:26:40
○NSns2.xserver.jp2015-08-06 → 2017-04-01 · 4 obs
● 2017-04-01 06:27:42
○ 2020-02-18 13:33:30
○ 2026-03-29 04:26:40
○NSns3.xserver.jp2015-08-06 → 2017-04-01 · 4 obs
● 2017-04-01 06:27:42
○ 2020-02-18 13:33:30
○ 2026-03-29 04:26:40
○NSns4.xserver.jp2015-08-06 → 2017-04-01 · 4 obs
● 2017-04-01 06:27:42
○ 2020-02-18 13:33:30
○ 2026-03-29 04:26:40
○NSns5.xserver.jp2015-08-06 → 2017-04-01 · 4 obs
● 2017-04-01 06:27:42
○ 2020-02-18 13:33:30
○ 2026-03-29 04:26:40
●MXbook528.net2015-08-06 → 2026-03-29 · 2 obs
● 2026-03-29 04:26:40
○A157.112.152.192015-08-06 → 2017-04-01 · 4 obs
● 2017-04-01 06:27:42
○ 2020-02-18 13:33:30
○ 2026-03-29 04:26:40
○A49.212.198.122020-02-18 → 2020-02-18 · 4 obs
● 2020-02-18 13:33:30
○ 2026-03-06 08:20:50
○ 2026-03-29 04:26:40
●A49.212.198.912026-03-06 → 2026-03-29 · 3 obs
● 2026-03-06 08:20:50
● 2026-03-29 04:26:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| book528.net | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for book528.net (unsigned zone)
⏱️ Timing
Total: 520ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.198.91 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | book528.net (pri: 10) |
| TXT | 1 | v=spf1 a:www2881.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
book528.net serves as a mail server for book528.net.
IP Addresses
book528.net points to a single IP: 49.212.198.91.
Other host names, for instance medcare-tora.sakura.ne.jp, msv-im06326.sakura.ne.jp, suncrown.sakura.ne.jp, nori-therapy.sakura.ne.jp and msv-im06348.sakura.ne.jp share IP numbers with book528.net.
Name Servers
book528.net is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
book528.net partially shares name servers with other domains; examples include y-tsj.com, outisv.sakura.ne.jp, gcat.jp, f-snc.com and atn-inc.sakura.ne.jp.
these name servers are commonly used with the name servers dns.sakura.ad.jp.
Host names with one IP number:
Host master.dns.ne.jp points to 210.224.172.18.
Host ns1.dns.ne.jp points to 61.211.236.1.
Host ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
book528.net is handled by a single mail server, book528.net.
book528.net points to a single IP: 49.212.198.91.