021booking.com - robtex.com

021booking.com

DNSSEC⚠️ Not signed
A154.209.106.204🇭🇰 POWERLINE-HK154.209.96.0/19 Digital Core Technology Co., Ltd
NSa3.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
NSb3.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=1765534824

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=1777084576

Same first word

021booking.com

DNS History

8 records (5 active, 3 former)

202120222023202420252026NSa.share-dns.coma3.share-dns.comb.share-dns.netb3.share-dns.netjm1.dns.comjm2.dns.comA154.209.106.204172.255.243.245
●NSa.share-dns.com2026-02-21 → 2026-04-25 · 3 obs
○ 2020-03-06 01:55:40
● 2026-02-21 18:24:30
● 2026-04-25 02:38:16
●NSa3.share-dns.com2026-02-21 → 2026-04-25 · 3 obs
○ 2020-03-06 01:55:40
● 2026-02-21 18:24:30
● 2026-04-25 02:38:16
●NSb.share-dns.net2026-02-21 → 2026-04-25 · 3 obs
○ 2020-03-06 01:55:40
● 2026-02-21 18:24:30
● 2026-04-25 02:38:16
●NSb3.share-dns.net2026-02-21 → 2026-04-25 · 3 obs
○ 2020-03-06 01:55:40
● 2026-02-21 18:24:30
● 2026-04-25 02:38:16
○NSjm1.dns.com2020-03-06 → 2020-03-06 · 3 obs
● 2020-03-06 01:55:40
○ 2026-02-21 18:24:30
○ 2026-04-25 02:38:16
○NSjm2.dns.com2020-03-06 → 2020-03-06 · 3 obs
● 2020-03-06 01:55:40
○ 2026-02-21 18:24:30
○ 2026-04-25 02:38:16
●A154.209.106.2042026-02-21 → 2026-04-25 · 3 obs
○ 2020-03-06 01:55:40
● 2026-02-21 18:24:30
● 2026-04-25 02:38:16
○A172.255.243.2452020-03-06 → 2020-03-06 · 3 obs
● 2020-03-06 01:55:40
○ 2026-02-21 18:24:30
○ 2026-04-25 02:38:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
021booking.comb3.share-dns.net, a3.share-dns.com1 record

✅ Authoritative Response

Server:172.64.53.25

NS records: b3.share-dns.net, a3.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 021booking.com (unsigned zone)

⏱️ Timing

Total: 816ms | Queries: -

📄 Records

TypeCountSample Data
A1154.209.106.204
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 (a3.share-dns.com)

Analysis

IP Addresses

021booking.com points to IP number 154.209.106.204.

Other host names, for instance, nbahupukuaichuanzhuanqu.com.cn share IP numbers with 021booking.com.

Name Servers

021booking.com is delegated to four name servers: a3.share-dns.com, a.share-dns.com, b3.share-dns.net and b.share-dns.net.

021booking.com shares name servers with other domains at least partially, for example sckjt.com, dfk728.com, sbe-cn.net, wxzxj.com and zuowentoutiao.com.

these name servers are often used with the following: a1.share-dns.com, b1.share-dns.net, a5.share-dns.com, b5.share-dns.net, a12.share-dns.com, b12.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 number:

a3.share-dns.com points to: 172.64.53.25.

a.share-dns.com points to: 172.64.53.25.

b3.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: a3.share-dns.com and a.share-dns.com.

Host names pointing to 172.64.52.239: b3.share-dns.net and b.share-dns.net.