cal7750.com - robtex.com
cal7750.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 27.133.136.168🇯🇵 SAKURA-B27.133.128.0/19 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | v4-27-133-136-168.h052.net | ||||||
| NS | a.zero52.net ⭐ | ||||||
| A | 2001:e42:107:1008:ac1e:fb66:1b85:88a4🇯🇵 SAKURA-B2001:e40::/30 SAKURA Internet Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka 530-0011, JAPAN | ||||||
| A | 27.133.136.164🇯🇵 SAKURA-B27.133.128.0/19 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ueda.zero52.net | ||||||
| NS | b.zero52.org | ||||||
| A | 2001:e42:107:1008:ac1e:fb66:1b85:88a7🇯🇵 SAKURA-B2001:e40::/30 SAKURA Internet Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka 530-0011, JAPAN | ||||||
| A | 27.133.136.167🇯🇵 SAKURA-B27.133.128.0/19 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | v4-27-133-136-167.h052.net | ||||||
| NS | c.zero52.com | ||||||
| A | 2001:e42:107:1008:ac1e:fb65:1b85:88a5🇯🇵 SAKURA-B2001:e40::/30 SAKURA Internet Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka 530-0011, JAPAN | ||||||
| A | 27.133.136.165🇯🇵 SAKURA-B27.133.128.0/19 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | sakurayama.zero52.net | ||||||
| MX | smtp.google.com ⭐ | ||||||
| A | 2607:f8b0:4023:c0b::1a🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | dd-in-f26.1e100.net | ||||||
| A | 2607:f8b0:4023:c0b::1b🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | dd-in-f27.1e100.net | ||||||
| A | 2607:f8b0:4023:c0d::1a🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | dl-in-f26.1e100.net | ||||||
| A | 2607:f8b0:4023:c0d::1b🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | dl-in-f27.1e100.net | ||||||
| A | 74.125.137.26🇺🇸 Google74.125.137.0/24 | ||||||
| PTR | dy-in-f26.1e100.net | ||||||
| A | 142.250.141.26🇺🇸 Google142.250.141.0/24 | ||||||
| PTR | dd-in-f26.1e100.net | ||||||
| A | 142.250.141.27🇺🇸 Google142.250.141.0/24 | ||||||
| PTR | dd-in-f27.1e100.net | ||||||
| A | 142.251.2.26🇺🇸 Google142.251.2.0/24 | ||||||
| PTR | dl-in-f26.1e100.net | ||||||
| A | 142.251.2.27🇺🇸 Google142.251.2.0/24 | ||||||
| PTR | dl-in-f27.1e100.net | ||||||
| TXT | v=spf1 include:_spf.google.com ~all | ||||||
| TXT | google-site-verification=LmP-yrclhFUMi2NjSJmwMreahuh5AxqQujVTdTx2m9Q | ||||||
| SOA | a.zero52.netdns@zero52.net 2025-10-14 #7 | ||||||
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=1775141407 | ||||||
Subdomains
www.cal7750.com |
DNS History
5 records (5 active, 0 former)
●NSa.zero52.net2026-04-02 → 2026-04-02 · 2 obs
● 2026-04-02 14:59:10
●NSb.zero52.org2026-04-02 → 2026-04-02 · 2 obs
● 2026-04-02 14:59:10
●NSc.zero52.com2026-04-02 → 2026-04-02 · 2 obs
● 2026-04-02 14:59:10
●MXsmtp.google.com2026-04-02 → 2026-04-02 · 2 obs
● 2026-04-02 14:59:10
●A27.133.136.1682026-04-02 → 2026-04-02 · 2 obs
● 2026-04-02 14:59:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net... | - |
| cal7750.com | a.zero52.net, c.zero52.com, b.zero52.org | 1 record |
✅ Authoritative Response
Server:27.133.136.164
NS records: a.zero52.net, c.zero52.com, b.zero52.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cal7750.com (unsigned zone)
⏱️ Timing
Total: 1182ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 27.133.136.168 |
| NS | 3 | c.zero52.com, a.zero52.net... |
| MX | 1 | smtp.google.com (pri: 10) |
| TXT | 2 | google-site-verification=LmP-yrclhFUMi2N, v=spf1 include:_spf.google.com ~all |
| SOA | 1 | a.zero52.net dns.zero52.net |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (c.zero52.com)
Analysis
Hierarchy
The parent of www.cal7750.com is cal7750.com.
IP Addresses
cal7750.com points to IP number: 27.133.136.168.
Other host names such as *.ku.ma, threadbike.com, 888.ku.ma, fukidashi.jp and ip6a.net share IPs with cal7750.com.
Name Servers
cal7750.com is delegated to three name servers: c.zero52.com, a.zero52.net and b.zero52.org.
cal7750.com at least partially shares name servers with other domains, for instance zero52.com, threadbike.com, wab.jp, ip6a.net and maryai.net.
These name servers are commonly used with b.zero52.com, c.zero52.org, a.pwd.jp, b.pwd.jp, c.pwd.jp and ns1.pwd.jp.
Host c.zero52.com points to 2001:e42:107:1008:ac1e:fb65:1b85:88a5 and 27.133.136.165; Host a.zero52.net points to 2001:e42:107:1008:ac1e:fb66:1b85:88a4 and 27.133.136.164; Host b.zero52.org points to 2001:e42:107:1008:ac1e:fb66:1b85:88a7 and 27.133.136.167.
Mail Servers
cal7750.com is handled by a single mail server, smtp.google.com.
The mail server setup for cal7750.com matches that of other domains, for instance arkeeygroup.com, genefire.com, vertika.it, hra.edu.vn and eabd.org.
cal7750.com shares at least partially some mail servers with other domains, including callboxinc.com, cloudnativecommunity.io, z3roadster.net, thinkingdata.io and indogoremit.com.
these mail servers are commonly used together with aspmx.l.google.com.
The host name smtp.google.com points to nine IP numbers: 2607:f8b0:4023:c0b::1a, 2607:f8b0:4023:c0b::1b, 2607:f8b0:4023:c0d::1a, 2607:f8b0:4023:c0d::1b, 74.125.137.26, 142.250.141.26, 142.250.141.27, 142.251.2.26 and 142.251.2.27.