jonathanhowardmd.com - robtex.com
jonathanhowardmd.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.21.37.76Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.205.227🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | alberto.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c12🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alberto.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c312🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | alberto.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2312🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | alberto.ns.cloudflare.com | ||||||
| A | 108.162.195.18🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alberto.ns.cloudflare.com | ||||||
| A | 162.159.44.18Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alberto.ns.cloudflare.com | ||||||
| A | 172.64.35.18🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alberto.ns.cloudflare.com | ||||||
| NS | katja.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2635🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | katja.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c235🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | katja.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2235🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | katja.ns.cloudflare.com | ||||||
| A | 108.162.194.53🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | katja.ns.cloudflare.com | ||||||
| A | 162.159.38.53Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | katja.ns.cloudflare.com | ||||||
| A | 172.64.34.53🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | katja.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.37.76, 172.67.205.227 | ||||||
| SOA | alberto.ns.cloudflare.comdns@cloudflare.com serial=2396891703 | ||||||
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=1774684267 | ||||||
Same first word
jonathanhowardmd.com |
DNS History
6 records (4 active, 2 former)
●NSalberto.ns.cloudflare.com2026-03-04 → 2026-03-28 · 2 obs
● 2026-03-28 07:54:56
●NSkatja.ns.cloudflare.com2026-03-04 → 2026-03-28 · 2 obs
● 2026-03-28 07:54:56
●A104.21.37.762026-03-28 → 2026-03-28 · 2 obs
● 2026-03-28 07:54:56
●A172.67.205.2272026-03-28 → 2026-03-28 · 2 obs
● 2026-03-28 07:54:56
○A188.114.96.02026-03-04 → 2026-03-04 · 2 obs
○ 2026-03-28 07:54:56
○A188.114.97.02026-03-04 → 2026-03-04 · 2 obs
○ 2026-03-28 07:54:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| jonathanhowardmd.com | katja.ns.cloudflare.com, alberto.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.18
NS records: katja.ns.cloudflare.com, alberto.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jonathanhowardmd.com (unsigned zone)
⏱️ Timing
Total: 135ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.37.76, 172.67.205.227 |
| NS | 2 | alberto.ns.cloudflare.com, katja.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | alberto.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (katja.ns.cloudflare.com, katja.ns.cloudflare.com, katja.ns.cloudflare.com...)
Analysis
IP Addresses
The entity jonathanhowardmd.com points to two IP numbers: 104.21.37.76 and 172.67.205.227.
For instance, other host names bustler.net, www.famille-xh.fr, gallowayswoburn.com, docabo.ch and branded-products.at share IP numbers with jonathanhowardmd.com.
Name Servers
jonathanhowardmd.com is delegated to two name servers: alberto.ns.cloudflare.com and katja.ns.cloudflare.com.
jonathanhowardmd.com uses the same name server setup as other domains such as shift.com.np, palsonic.com.np, wastranepal.com, neobuds.com and ladwebs.com.au.
jonathanhowardmd.com shares name servers with other domains at least partially, for example joyomalam.com, gopayqianbaodizhi.com.cn, lijieouzhoubeiguanjun.com.cn, tagcdnsub.work and 2008nianjinrongweiji.com.cn.
These name servers are commonly used with malavika.ns.cloudflare.com, nelly.ns.cloudflare.com and jermaine.ns.cloudflare.com.
Host names with six IP numbers: host name alberto.ns.cloudflare.com points to: 2606:4700:58::a29f:2c12, 2803:f800:50::6ca2:c312, 2a06:98c1:50::ac40:2312, 108.162.195.18, 162.159.44.18 and 172.64.35.18; host name katja.ns.cloudflare.com points to: 2606:4700:50::a29f:2635, 2803:f800:50::6ca2:c235, 2a06:98c1:50::ac40:2235, 108.162.194.53, 162.159.38.53 and 172.64.34.53.