certsharp.com - dns.ninja
certsharp.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.150.1.1🇨🇦 Amazon216.150.1.0/24 EC2 Prefix | ||||||
| NS | ns1.a2hosting.com ⭐ | ||||||
| A | 13.248.158.180🇺🇸 Amazon13.248.144.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns2.a2hosting.com | ||||||
| A | 75.2.118.134🇺🇸 Amazon75.2.112.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| NS | ns3.a2hosting.com | ||||||
| A | 76.223.26.245🇺🇸 Amazon76.223.16.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns4.a2hosting.com | ||||||
| A | 99.83.147.209🇺🇸 Amazon99.83.144.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| MX | mail.certsharp.com ⭐ | ||||||
| A | 68.66.216.9 | ||||||
| TXT | v=spf1 +a +mx +ip4:68.66.216.9 include:spf.a2hosting.com ~all | ||||||
| TXT | google-site-verification=sXDxDjADc45jxVWy7D1lER5xVKMZPOkNlJBX4ioLW3Y | ||||||
| SOA | ns1.a2hosting.comroot@mi3-cl9-ats2.a2hosting.com 2026-10-02 #1 | ||||||
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=1792108729 | ||||||
Subdomains
mail.certsharp.com |
Same first word
certsharp.com |
Similar names
Previous names
Next names
DNS History
17 records (6 active, 11 former)
●NSns1.a2hosting.com2026-08-31 → 2026-10-16 · 3 obs
● 2026-08-31 11:56:58
● 2026-10-16 00:00:28
○NSns1qsy.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
●NSns2.a2hosting.com2026-08-31 → 2026-10-16 · 3 obs
● 2026-08-31 11:56:58
● 2026-10-16 00:00:28
○NSns2qvz.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
●NSns3.a2hosting.com2026-08-31 → 2026-10-16 · 3 obs
● 2026-08-31 11:56:58
● 2026-10-16 00:00:28
○NSns3cpr.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
●NSns4.a2hosting.com2026-08-31 → 2026-10-16 · 3 obs
● 2026-08-31 11:56:58
● 2026-10-16 00:00:28
○NSns4blx.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
○MXin1-smtp.messagingengine.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
○MXin2-smtp.messagingengine.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
●MXmail.certsharp.com2026-08-31 → 2026-10-16 · 3 obs
● 2026-08-31 11:56:58
● 2026-10-16 00:00:28
○A185.199.108.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
○A185.199.109.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
○A185.199.110.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
○A185.199.111.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-10-16 00:00:28
●A216.150.1.12026-09-13 → 2026-10-16 · 3 obs
● 2026-09-13 21:29:02
● 2026-10-16 00:00:28
○A216.198.79.12026-08-31 → 2026-08-31 · 4 obs
● 2026-08-31 11:56:58
○ 2026-09-13 21:29:02
○ 2026-10-16 00:00:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| certsharp.com | ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com | 4 records |
✅ Authoritative Response
Server:75.2.118.134
NS records: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
⏱️ Timing
Total: 544ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.150.1.1 |
| NS | 4 | ns2.a2hosting.com, ns4.a2hosting.com... |
| MX | 1 | mail.certsharp.com (pri: 0) |
| TXT | 2 | google-site-verification=sXDxDjADc45jxVW, v=spf1 +a +mx +ip4:68.66.216.9 include:s |
| SOA | 1 | ns1.a2hosting.com root.mi3-cl9-ats2.a2ho |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com...)
Analysis
Hierarchy
mail.certsharp.com is delegated beneath certsharp.com.
IP Addresses
certsharp.com points to a single IP number: 216.150.1.1.
Additional host names — orcaas.ai, customweddingco.com, st-hubertgears.com and two others — share IP numbers with certsharp.com.
Name Servers
certsharp.com has four authoritative name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
There is at least partial name server overlap between certsharp.com and other domains — nicolenewton.com.au, joh7gnfz.a2hosted.com, bradlyburk.com and two more among them.
These name servers regularly appear alongside ns1.mysecurecloudhost.com, ns2.mysecurecloudhost.com, ns3.mysecurecloudhost.com and 5 other name servers in NS record sets.
ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com each resolve to one IP address: ns1.a2hosting.com resolves to 13.248.158.180, ns2.a2hosting.com resolves to 75.2.118.134, ns3.a2hosting.com resolves to 76.223.26.245 and ns4.a2hosting.com resolves to 99.83.147.209.
Mail Servers
certsharp.com has one mail server: mail.certsharp.com.
There is one IP number for mail.certsharp.com: 68.66.216.9.