21bikes.com - robtex.com
21bikes.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 154.89.106.203🇭🇰 HKIDC-AS-AP154.89.64.0/18 abcde | ||||||
| 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=1738654517 | ||||||
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
21bikes.com |
Similar names
DNS History
13 records (5 active, 8 former)
●NSa.share-dns.com2026-03-17 → 2026-03-17 · 2 obs
● 2026-03-17 13:19:56
●NSa9.share-dns.com2026-03-17 → 2026-03-17 · 2 obs
● 2026-03-17 13:19:56
●NSb.share-dns.net2026-03-17 → 2026-03-17 · 2 obs
● 2026-03-17 13:19:56
●NSb9.share-dns.net2026-03-17 → 2026-03-17 · 2 obs
● 2026-03-17 13:19:56
○NSwww.21bikes.com2015-12-02 → 2018-12-04 · 3 obs
● 2018-12-04 22:42:16
○ 2026-03-17 13:19:56
○MXio.bouncemx.com2015-12-02 → 2017-02-14 · 5 obs
● 2015-12-02 18:11:04
● 2017-02-14 00:55:38
○ 2018-12-04 22:42:16
○ 2026-03-17 13:19:56
○MXmail.skrimple.com2015-08-11 → 2015-08-11 · 3 obs
○ 2015-12-02 18:11:04
○ 2026-03-17 13:19:56
●A154.89.106.2032026-03-17 → 2026-03-17 · 2 obs
● 2026-03-17 13:19:56
○A162.218.54.422015-08-11 → 2015-08-11 · 3 obs
○ 2015-12-02 18:11:04
○ 2026-03-17 13:19:56
○A198.12.15.2442015-08-11 → 2015-08-11 · 3 obs
○ 2015-12-02 18:11:04
○ 2026-03-17 13:19:56
○A70.39.84.2362016-03-02 → 2016-03-02 · 4 obs
● 2016-03-02 23:42:12
○ 2016-07-03 02:45:46
○ 2026-03-17 13:19:56
○A70.39.84.2422015-12-02 → 2017-02-14 · 7 obs
● 2015-12-02 18:11:04
○ 2016-03-02 23:42:12
● 2016-07-03 02:45:46
● 2017-02-14 00:55:38
○ 2018-12-04 22:42:16
○ 2026-03-17 13:19:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| 21bikes.com | b9.share-dns.net, a9.share-dns.com | 1 record |
✅ Authoritative Response
Server: 172.64.52.239
NS records: b9.share-dns.net, a9.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21bikes.com (unsigned zone)
⏱️ Timing
Total: 226ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.89.106.203 |
| 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
21bikes.com points to a single IP number: 154.89.106.203.
Name Servers
21bikes.com is delegated to four name servers: a9.share-dns.com, a.share-dns.com, b9.share-dns.net and b.share-dns.net.
21bikes.com at least partially shares name servers with other domains, for instance tjjlwh.com, qdhml.com, rymq.net, foodexpogz.cn and itsamarketingthing.com.
These name servers are often used together with the name servers a12.share-dns.com, b12.share-dns.net, a11.share-dns.com, b11.share-dns.net, a3.share-dns.com, b3.share-dns.net, a4.share-dns.com, b4.share-dns.net, a7.share-dns.com and b7.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.
Hosts pointing to 172.64.53.25: a9.share-dns.com, a.share-dns.com.
Hosts pointing to 172.64.52.239: b9.share-dns.net, b.share-dns.net.