markcore.com - dns.ninja
markcore.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.252.144.23🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | s273.sureserver.com | ||||||
| NS | ns1.server273.com ⭐ | ||||||
| A | 192.252.144.23🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | s273.sureserver.com | ||||||
| NS | ns2.server273.com | ||||||
| A | 192.252.145.23🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | ns2.server273.com | ||||||
| MX | mail.markcore.com ⭐ | ||||||
| A | 192.252.144.23🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | s273.sureserver.com | ||||||
| TXT | v=spf1 a mx include:server273.smtp-spf.sureserver.com ~all | ||||||
| SOA | ns1.server273.comhostmaster@markcore.com serial=1782170512 | ||||||
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=1782171120 | ||||||
Subdomains
mail.markcore.com |
Same first word
markcore.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.server273.com2015-05-30 → 2026-06-22 · 2 obs
● 2026-06-22 23:36:44
●NSns2.server273.com2015-05-30 → 2026-06-22 · 2 obs
● 2026-06-22 23:36:44
●MXmail.markcore.com2015-05-30 → 2026-06-22 · 2 obs
● 2026-06-22 23:36:44
●A192.252.144.232017-01-31 → 2026-06-22 · 3 obs
● 2017-01-31 02:03:24
● 2026-06-22 23:36:44
○A64.14.68.512015-05-30 → 2016-05-04 · 4 obs
● 2016-05-04 17:03:40
○ 2017-01-31 02:03:24
○ 2026-06-22 23:36:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| markcore.com | ns1.server273.com, ns2.server273.com | 2 records |
✅ Authoritative Response
Server:192.252.145.23
NS records: ns1.server273.com, ns2.server273.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for markcore.com (unsigned zone)
⏱️ Timing
Total: 167ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.252.144.23 |
| NS | 2 | ns1.server273.com, ns2.server273.com |
| MX | 1 | mail.markcore.com (pri: 0) |
| TXT | 1 | v=spf1 a mx include:server273.smtp-spf.s |
| SOA | 1 | ns1.server273.com hostmaster.markcore.co |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.server273.com, ns2.server273.com)
Analysis
Hierarchy
markcore.com serves as the parent of mail.markcore.com.
IP Addresses
markcore.com directs to one IP number, which is 192.252.144.23.
Among the host names that share IP numbers with markcore.com are mail.caremaryland.org, mail.omegastar.com, www.ps.com.mx and two others.
Name Servers
DNS delegation for markcore.com points to two name servers: ns1.server273.com and ns2.server273.com.
markcore.com has the same name server delegation as a number of other domains, such as zatsky.net, reifflorenz.com, creatively-yours.com and two more.
markcore.com has at least partial name server overlap with other domains, such as bangalowdental.com, caremichigan.org, reelasian.com and two others.
ns1.server273.com directs to 192.252.144.23 and ns2.server273.com directs to 192.252.145.23; each host name points to exactly one IP number.
Mail Servers
markcore.com routes its mail through a single mail server, mail.markcore.com.
mail.markcore.com has exactly one IP number: 192.252.144.23.