521oa.com - robtex.com

521oa.com

DNSSEC⚠️ Not signed
A38.6.77.246🇺🇸 AS39882338.6.64.0/18 PEG TECH INC PT-82
NSa9.share-dns.com ⭐ ⚠️ Not in parent delegation
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSa.share-dns.com ⚠️ Not in zone NS records
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb.share-dns.net ⚠️ Not in zone NS records
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb9.share-dns.net ⚠️ Not in parent delegation
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
SOAa.share-dns.commaster@share-dns.com serial=1742023058

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774489587

Same first word

521oa.com

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSa.share-dns.coma9.share-dns.comb.share-dns.netb9.share-dns.netdns23.hichina.comdns24.hichina.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netMXmx.ym.163.comA38.6.77.246110.34.191.27175.176.194.19627.54.254.153
●NSa.share-dns.com2026-03-26 → 2026-03-26 · 3 obs
○ 2018-10-21 20:21:36
● 2026-03-26 01:56:46
● 2026-03-26 01:56:48
●NSa9.share-dns.com2026-03-26 → 2026-03-26 · 3 obs
○ 2018-10-21 20:21:36
● 2026-03-26 01:56:46
● 2026-03-26 01:56:48
●NSb.share-dns.net2026-03-26 → 2026-03-26 · 3 obs
○ 2018-10-21 20:21:36
● 2026-03-26 01:56:46
● 2026-03-26 01:56:48
●NSb9.share-dns.net2026-03-26 → 2026-03-26 · 3 obs
○ 2018-10-21 20:21:36
● 2026-03-26 01:56:46
● 2026-03-26 01:56:48
○NSdns23.hichina.com2015-07-25 → 2017-02-15 · 4 obs
● 2015-07-25 15:16:32
● 2017-02-15 13:09:08
○ 2018-10-21 20:21:36
○ 2026-03-26 01:56:48
○NSdns24.hichina.com2015-07-25 → 2017-02-15 · 4 obs
● 2015-07-25 15:16:32
● 2017-02-15 13:09:08
○ 2018-10-21 20:21:36
○ 2026-03-26 01:56:48
○NSf1g1ns1.dnspod.net2018-10-21 → 2018-10-21 · 4 obs
○ 2017-02-15 13:09:08
● 2018-10-21 20:21:36
○ 2026-03-26 01:56:46
○ 2026-03-26 01:56:48
○NSf1g1ns2.dnspod.net2018-10-21 → 2018-10-21 · 4 obs
○ 2017-02-15 13:09:08
● 2018-10-21 20:21:36
○ 2026-03-26 01:56:46
○ 2026-03-26 01:56:48
○MXmx.ym.163.com2015-07-25 → 2016-06-26 · 4 obs
● 2015-07-25 15:16:32
● 2016-06-26 20:50:08
○ 2017-02-15 13:09:08
○ 2026-03-26 01:56:48
○A110.34.191.272017-02-15 → 2017-02-15 · 4 obs
○ 2016-06-26 20:50:08
● 2017-02-15 13:09:08
○ 2018-10-21 20:21:36
○ 2026-03-26 01:56:48
○A175.176.194.1962018-10-21 → 2018-10-21 · 4 obs
○ 2017-02-15 13:09:08
● 2018-10-21 20:21:36
○ 2026-03-26 01:56:46
○ 2026-03-26 01:56:48
○A27.54.254.1532015-07-25 → 2016-06-26 · 4 obs
● 2015-07-25 15:16:32
● 2016-06-26 20:50:08
○ 2017-02-15 13:09:08
○ 2026-03-26 01:56:48
●A38.6.77.2462026-03-26 → 2026-03-26 · 3 obs
○ 2018-10-21 20:21:36
● 2026-03-26 01:56:46
● 2026-03-26 01:56:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
521oa.comb9.share-dns.net, a9.share-dns.com1 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 521oa.com (unsigned zone)

⏱️ Timing

Total: 546ms | Queries: -

📄 Records

TypeCountSample Data
A138.6.77.246
NS2a.share-dns.com, b.share-dns.net
SOA1a.share-dns.com master.share-dns.com

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a9.share-dns.com)

Analysis

IP Addresses

521oa.com resolves to a single IP: 38.6.77.246.

Other host names share IP numbers with 521oa.com; for instance js-hotel.com.

Name Servers

521oa.com is delegated to four name servers: a9.share-dns.com, a.share-dns.com, b9.share-dns.net and b.share-dns.net.

521oa.com shares some name servers with other domains, for example ewiscloud.com, tsxinye.com, eicsystem.com, cicifan.com and bisaw.cn.

these name servers are often used with a3.share-dns.com, b3.share-dns.net, a4.share-dns.com, b4.share-dns.net, a6.share-dns.com, b6.share-dns.net, a10.share-dns.com, b10.share-dns.net, a2.share-dns.com and b2.share-dns.net.

Host names with one IP:

a9.share-dns.com points to 172.64.53.25

a.share-dns.com points to 172.64.53.25

b9.share-dns.net points to 172.64.52.239

b.share-dns.net points to 172.64.52.239

Host names pointing to 172.64.53.25: a9.share-dns.com and a.share-dns.com

Host names pointing to 172.64.52.239: b9.share-dns.net and b.share-dns.net