johnfblack.com - robtex.com
johnfblack.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 154.218.164.215🇭🇰 ASLINE-AS-AP154.218.160.0/20 | ||||||
| NS | a11.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 | ||||||
| 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 | ||||||
| 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 | ||||||
| NS | b11.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 | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1752027592 | ||||||
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=1774589672 | ||||||
Subdomains
mailserver.johnfblack.com |
Same first word
johnfblack.com |
DNS History
14 records (5 active, 9 former)
●NSa.share-dns.com2026-03-13 → 2026-03-27 · 3 obs
● 2026-03-13 21:52:58
● 2026-03-27 05:44:18
●NSa11.share-dns.com2026-03-13 → 2026-03-27 · 3 obs
● 2026-03-13 21:52:58
● 2026-03-27 05:44:18
●NSb.share-dns.net2026-03-13 → 2026-03-27 · 3 obs
● 2026-03-13 21:52:58
● 2026-03-27 05:44:18
●NSb11.share-dns.net2026-03-13 → 2026-03-27 · 3 obs
● 2026-03-13 21:52:58
● 2026-03-27 05:44:18
○NSns1.wordpress.com2015-07-22 → 2015-11-25 · 4 obs
● 2015-11-25 11:25:08
○ 2016-02-28 17:43:56
○ 2026-03-27 05:44:18
○NSns2.wordpress.com2015-07-22 → 2015-11-25 · 4 obs
● 2015-11-25 11:25:08
○ 2016-02-28 17:43:56
○ 2026-03-27 05:44:18
○NSns3.wordpress.com2015-07-22 → 2015-11-25 · 4 obs
● 2015-11-25 11:25:08
○ 2016-02-28 17:43:56
○ 2026-03-27 05:44:18
○NSns65.domaincontrol.com2016-02-28 → 2020-01-03 · 5 obs
● 2016-02-28 17:43:56
● 2020-01-03 16:47:04
○ 2026-03-13 21:52:58
○ 2026-03-27 05:44:18
○NSns66.domaincontrol.com2016-02-28 → 2020-01-03 · 5 obs
● 2016-02-28 17:43:56
● 2020-01-03 16:47:04
○ 2026-03-13 21:52:58
○ 2026-03-27 05:44:18
○MXmail.johnfblack.com2016-02-28 → 2020-01-03 · 4 obs
● 2020-01-03 16:47:04
○ 2026-03-13 21:52:58
○ 2026-03-27 05:44:18
○A107.180.51.362016-02-28 → 2020-01-03 · 5 obs
● 2016-02-28 17:43:56
● 2020-01-03 16:47:04
○ 2026-03-13 21:52:58
○ 2026-03-27 05:44:18
●A154.218.164.2152026-03-13 → 2026-03-27 · 3 obs
● 2026-03-13 21:52:58
● 2026-03-27 05:44:18
○A192.0.78.242015-07-22 → 2015-11-25 · 4 obs
● 2015-11-25 11:25:08
○ 2016-02-28 17:43:56
○ 2026-03-27 05:44:18
○A192.0.78.252015-07-22 → 2015-11-25 · 4 obs
● 2015-11-25 11:25:08
○ 2016-02-28 17:43:56
○ 2026-03-27 05:44:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net... | - |
| johnfblack.com | b11.share-dns.net, a11.share-dns.com | 1 record |
✅ Authoritative Response
Server:172.64.52.239
NS records: b11.share-dns.net, a11.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for johnfblack.com (unsigned zone)
⏱️ Timing
Total: 316ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.218.164.215 |
| 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 (a11.share-dns.com)
Analysis
Hierarchy
johnfblack.com is the parent of mailserver.johnfblack.com.
IP Addresses
johnfblack.com resolves to a single IP: 154.218.164.215.
Other host names, for instance mailserver.johnfblack.com, gsscene.com, ilexing.com, mail.haojisenhe.com and haojisenhe.com share IP numbers with johnfblack.com.
Name Servers
johnfblack.com is delegated to four name servers: a11.share-dns.com, a.share-dns.com, b11.share-dns.net and b.share-dns.net.
johnfblack.com shares some name servers with other domains, for example hbyiman.com, scxfdc.com, hzjwbxg.com, lastpogo.com and k30008.com.
these name servers are often used with a2.share-dns.com, b2.share-dns.net, a6.share-dns.com, b6.share-dns.net, a8.share-dns.com, b8.share-dns.net, a3.share-dns.com, b3.share-dns.net, a7.share-dns.com and b7.share-dns.net.
Host names with one IP:
a11.share-dns.com points to 172.64.53.25
a.share-dns.com points to 172.64.53.25
b11.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: a11.share-dns.com and a.share-dns.com
Host names pointing to 172.64.52.239: b11.share-dns.net and b.share-dns.net