certsharp.com - robtex.com
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🇺🇸 A2HOSTING68.66.216.0/21 A2 Hosting, Inc. | ||||||
| PTR | mi3-cl9-ats2.a2hosting.com | ||||||
| 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 2026-09-06 #0 | ||||||
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=1789333113 | ||||||
Same first word
certsharp.com |
Similar names
Previous names
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DNS History
17 records (6 active, 11 former)
●NSns1.a2hosting.com2026-08-31 → 2026-09-13 · 3 obs
● 2026-08-31 11:56:58
● 2026-09-13 21:29:06
○NSns1qsy.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
●NSns2.a2hosting.com2026-08-31 → 2026-09-13 · 3 obs
● 2026-08-31 11:56:58
● 2026-09-13 21:29:06
○NSns2qvz.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
●NSns3.a2hosting.com2026-08-31 → 2026-09-13 · 3 obs
● 2026-08-31 11:56:58
● 2026-09-13 21:29:06
○NSns3cpr.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
●NSns4.a2hosting.com2026-08-31 → 2026-09-13 · 3 obs
● 2026-08-31 11:56:58
● 2026-09-13 21:29:06
○NSns4blx.name.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
○MXin1-smtp.messagingengine.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
○MXin2-smtp.messagingengine.com2019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
●MXmail.certsharp.com2026-08-31 → 2026-09-13 · 3 obs
● 2026-08-31 11:56:58
● 2026-09-13 21:29:06
○A185.199.108.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
○A185.199.109.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
○A185.199.110.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
○A185.199.111.1532019-03-06 → 2019-03-06 · 3 obs
○ 2026-08-31 11:56:58
○ 2026-09-13 21:29:06
●A216.150.1.12026-09-13 → 2026-09-13 · 3 obs
● 2026-09-13 21:29:02
● 2026-09-13 21:29:06
○A216.198.79.12026-08-31 → 2026-08-31 · 4 obs
● 2026-08-31 11:56:58
○ 2026-09-13 21:29:02
○ 2026-09-13 21:29:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.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)
No DS record for certsharp.com (unsigned zone)
⏱️ Timing
Total: 614ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.150.1.1 |
| NS | 4 | ns2.a2hosting.com, ns1.a2hosting.com... |
| MX | 1 | mail.certsharp.com (pri: 0) |
| TXT | 2 | v=spf1 +a +mx +ip4:68.66.216.9 include:s, google-site-verification=sXDxDjADc45jxVW |
| 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
IP Addresses
certsharp.com resolves to one IP address: 216.150.1.1.
customweddingco.com, collectap.us, grapevine.fyi and two other host names share IP numbers with certsharp.com.
Name Servers
The authoritative name servers for certsharp.com are ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
The name servers of certsharp.com overlap at least partially with those of other domains — among them joh7gnfz.a2hosted.com, bradlyburk.com, sevenoaksreflexology.co.uk and two more.
These name servers commonly appear in delegations together with ns1.mysecurecloudhost.com, ns2.mysecurecloudhost.com, ns3.mysecurecloudhost.com and 7 other.
Each of the four hosts ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com points to a single IP address — ns1.a2hosting.com points to 13.248.158.180, ns2.a2hosting.com points to 75.2.118.134, ns3.a2hosting.com points to 76.223.26.245 and ns4.a2hosting.com points to 99.83.147.209.
Mail Servers
Mail for certsharp.com is handled by a single mail server, mail.certsharp.com.
mail.certsharp.com carries a single IP number, which is 68.66.216.9.