school520.com - robtex.com
school520.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.49.8.170🇺🇸 FASTNET-AS38.49.8.0/21 | ||||||
| A | 38.49.9.158🇺🇸 FASTNET-AS38.49.8.0/21 | ||||||
| NS | a9.share-dns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-172-64-53-25.defastlink.net | ||||||
| NS | a.share-dns.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-172-64-53-25.defastlink.net | ||||||
| NS | b.share-dns.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-172-64-52-239.defastlink.net | ||||||
| NS | b9.share-dns.net ⚠️ Not in parent delegation | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-172-64-52-239.defastlink.net | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1743956280 | ||||||
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=1771291435 | ||||||
Same first word
school520.com |
school520.cn |
Similar names
DNS History
13 records (6 active, 7 former)
●NSa.share-dns.com2026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:00:40
● 2026-03-21 10:28:38
●NSa9.share-dns.com2026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:00:40
● 2026-03-21 10:28:38
●NSb.share-dns.net2026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:00:40
● 2026-03-21 10:28:38
●NSb9.share-dns.net2026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:00:40
● 2026-03-21 10:28:38
○NSdns27.hichina.com2020-03-26 → 2020-03-26 · 4 obs
● 2020-03-26 12:00:42
○ 2026-03-21 07:00:40
○ 2026-03-21 10:28:38
○NSdns28.hichina.com2020-03-26 → 2020-03-26 · 4 obs
● 2020-03-26 12:00:42
○ 2026-03-21 07:00:40
○ 2026-03-21 10:28:38
○NSns75.domaincontrol.com2015-05-27 → 2017-04-02 · 4 obs
● 2017-04-02 13:04:42
○ 2020-03-26 12:00:42
○ 2026-03-21 10:28:38
○NSns76.domaincontrol.com2015-05-27 → 2017-04-02 · 4 obs
● 2017-04-02 13:04:42
○ 2020-03-26 12:00:42
○ 2026-03-21 10:28:38
○MXmailstore1.secureserver.net2015-05-27 → 2017-04-02 · 4 obs
● 2017-04-02 13:04:42
○ 2020-03-26 12:00:42
○ 2026-03-21 10:28:38
○MXsmtp.secureserver.net2015-05-27 → 2017-04-02 · 4 obs
● 2017-04-02 13:04:42
○ 2020-03-26 12:00:42
○ 2026-03-21 10:28:38
●A38.49.8.1702026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:00:40
● 2026-03-21 10:28:38
●A38.49.9.1582026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:00:40
● 2026-03-21 10:28:38
○A50.62.238.102015-05-27 → 2017-04-02 · 4 obs
● 2017-04-02 13:04:42
○ 2020-03-26 12:00:42
○ 2026-03-21 10:28:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| school520.com | b9.share-dns.net, a9.share-dns.com | 1 record |
✅ Authoritative Response
Server: 172.64.53.25
NS records: b9.share-dns.net, a9.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for school520.com (unsigned zone)
⏱️ Timing
Total: 213ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 38.49.9.158, 38.49.8.170 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (a9.share-dns.com)
Analysis
IP Addresses
school520.com points to two IP numbers: 38.49.8.170 and 38.49.9.158.
Name Servers
school520.com is delegated to four name servers: a9.share-dns.com, a.share-dns.com, b9.share-dns.net and b.share-dns.net.
school520.com at least partially shares name servers with other domains, for instance czjfr.com, czjq.org, czcgys.com, zonqiao.com and dachuanmei.com.
These name servers are commonly used alongside a7.share-dns.com, b7.share-dns.net, a4.share-dns.com, b4.share-dns.net, a1.share-dns.com, b1.share-dns.net, a5.share-dns.com, b5.share-dns.net, a2.share-dns.com and b2.share-dns.net.
Host names with one IP target:
a9.share-dns.com maps to 172.64.53.25
a.share-dns.com maps to 172.64.53.25
b9.share-dns.net maps to 172.64.52.239
b.share-dns.net maps to 172.64.52.239
Host names that map to 172.64.53.25: a9.share-dns.com and a.share-dns.com
Host names that map to 172.64.52.239: b9.share-dns.net and b.share-dns.net