selectiveprep.com - dns.ninja
selectiveprep.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 50.87.235.230🇺🇸 EIGI50.87.0.0/16 Unified Layer | ||||||
| PTR | 50-87-235-230.unifiedlayer.com | ||||||
| NS | ns53.worldnic.com ⭐ | ||||||
| A | 162.159.26.165Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns54.worldnic.com | ||||||
| A | 162.159.27.8Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mx1.emailsrvr.com ⭐ | ||||||
| A | 184.106.54.1🇺🇸 RACKSPACE-ORD184.106.54.0/24 Rackspace ORD | ||||||
| PTR | mx1.emailsrvr.com | ||||||
| MX | mx2.emailsrvr.com(20) | ||||||
| A | 108.166.43.2🇺🇸 RACKSPACE-ORD108.166.0.0/18 Rackspace | ||||||
| PTR | mx2.emailsrvr.com | ||||||
| TXT | v=spf1 include:emailsrvr.com ~all | ||||||
| SOA | NS53.WORLDNIC.comnamehost@WORLDNIC.com serial=118091016 | ||||||
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=1786468774 | ||||||
Previously MX for
selectiveprep.com |
Subdomains
www.selectiveprep.com |
Same first word
selectiveprep.com |
DNS History
9 records (5 active, 4 former)
○NSns1.namelessdns.com2015-08-08 → 2016-03-20 · 4 obs
● 2016-03-20 04:11:24
○ 2016-09-07 23:53:16
○ 2026-08-11 17:40:42
○NSns2.namelessdns.com2015-08-08 → 2016-03-20 · 4 obs
● 2016-03-20 04:11:24
○ 2016-09-07 23:53:16
○ 2026-08-11 17:40:42
●NSns53.worldnic.com2016-09-07 → 2026-08-11 · 3 obs
● 2016-09-07 23:53:16
● 2026-08-11 17:40:42
●NSns54.worldnic.com2016-09-07 → 2026-08-11 · 3 obs
● 2016-09-07 23:53:16
● 2026-08-11 17:40:42
●MXmx1.emailsrvr.com2016-09-07 → 2026-08-11 · 3 obs
● 2016-09-07 23:53:16
● 2026-08-11 17:40:42
●MXmx2.emailsrvr.com2016-09-07 → 2026-08-11 · 3 obs
● 2016-09-07 23:53:16
● 2026-08-11 17:40:42
○MXselectiveprep.com2015-08-08 → 2016-03-20 · 4 obs
● 2016-03-20 04:11:24
○ 2016-09-07 23:53:16
○ 2026-08-11 17:40:42
●A50.87.235.2302016-09-07 → 2026-08-11 · 3 obs
● 2016-09-07 23:53:16
● 2026-08-11 17:40:42
○A69.65.43.1392015-08-08 → 2016-03-20 · 4 obs
● 2016-03-20 04:11:24
○ 2016-09-07 23:53:16
○ 2026-08-11 17:40:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net... | - |
| selectiveprep.com | ns53.worldnic.com, ns54.worldnic.com | 2 records |
✅ Authoritative Response
Server:162.159.27.8
NS records: ns53.worldnic.com, ns54.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for selectiveprep.com (unsigned zone)
⏱️ Timing
Total: 225ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 50.87.235.230 |
| NS | 2 | ns53.worldnic.com, ns54.worldnic.com |
| MX | 2 | mx2.emailsrvr.com (pri: 20), mx1.emailsrvr.com (pri: 10) |
| TXT | 1 | v=spf1 include:emailsrvr.com ~all |
| SOA | 1 | NS53.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns53.worldnic.com, ns54.worldnic.com)
Analysis
Hierarchy
www.selectiveprep.com is a subdomain of selectiveprep.com.
IP Addresses
selectiveprep.com has exactly one IP address — 50.87.235.230.
50-87-235-230.unifiedlayer.com and www.selectiveprep.com are among other host names that share IP numbers with selectiveprep.com.
Name Servers
selectiveprep.com is delegated to two name servers: ns53.worldnic.com and ns54.worldnic.com.
The name server configuration of selectiveprep.com is shared with other domains, for instance web2u.biz, coastharborrealty.com, tspintl.com and two others.
Both ns53.worldnic.com and ns54.worldnic.com have a single IP address each — ns53.worldnic.com resolves to 162.159.26.165 while ns54.worldnic.com resolves to 162.159.27.8.
Mail Servers
selectiveprep.com uses two mail servers, mx1.emailsrvr.com and mx2.emailsrvr.com.
The mail server setup of selectiveprep.com matches that of other domains such as rougemag.co.nz, gracebaptistportage.com, adultcreative.co.uk and two others.
At least some of the mail servers used by selectiveprep.com are shared with other domains: capturedbyclaudia.com, freemanlawgroupllp.com, 20thcentury-collectables.co.uk and two others among them.
Both mx1.emailsrvr.com and mx2.emailsrvr.com have a single IP address each — mx1.emailsrvr.com resolves to 184.106.54.1 while mx2.emailsrvr.com resolves to 108.166.43.2.