gradekeeper.com - robtex.com
gradekeeper.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 70.32.22.102🇺🇸 A2HOSTING70.32.16.0/20 A2 Hosting, Inc. | ||||||
| PTR | 70.32.22.102.static.a2webhosting.com | ||||||
| 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 | gradekeeper.com ⭐ | ||||||
| A | 70.32.22.102🇺🇸 A2HOSTING70.32.16.0/20 A2 Hosting, Inc. | ||||||
| PTR | 70.32.22.102.static.a2webhosting.com | ||||||
| TXT | v=spf1 +a +mx +ip4:68.66.216.44 +include:smtpjs.com ~all | ||||||
| SOA | ns1.a2hosting.comroot@mi3-ls10.a2hosting.com 2026-03-17 #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=1771291435 | ||||||
MX for
gradekeeper.com |
Same first word
gradekeeper.com |
DNS History
13 records (6 active, 7 former)
○NSns.visi.com2015-06-11 → 2017-02-17 · 4 obs
● 2017-02-17 09:05:06
○ 2018-12-05 08:25:12
○ 2026-03-22 23:11:50
●NSns1.a2hosting.com2018-12-05 → 2026-03-22 · 3 obs
● 2018-12-05 08:25:12
● 2026-03-22 23:11:50
●NSns2.a2hosting.com2018-12-05 → 2026-03-22 · 3 obs
● 2018-12-05 08:25:12
● 2026-03-22 23:11:50
○NSns2.visi.com2015-06-11 → 2017-02-17 · 4 obs
● 2017-02-17 09:05:06
○ 2018-12-05 08:25:12
○ 2026-03-22 23:11:50
●NSns3.a2hosting.com2018-12-05 → 2026-03-22 · 3 obs
● 2018-12-05 08:25:12
● 2026-03-22 23:11:50
●NSns4.a2hosting.com2018-12-05 → 2026-03-22 · 3 obs
● 2018-12-05 08:25:12
● 2026-03-22 23:11:50
○MXamx.gradekeeper.com.redcondor.net2015-06-11 → 2017-02-17 · 4 obs
● 2017-02-17 09:05:06
○ 2018-12-05 08:25:12
○ 2026-03-22 23:11:50
○MXbmx.gradekeeper.com.redcondor.net2015-06-11 → 2017-02-17 · 4 obs
● 2017-02-17 09:05:06
○ 2018-12-05 08:25:12
○ 2026-03-22 23:11:50
●MXgradekeeper.com2018-12-05 → 2026-03-22 · 3 obs
● 2018-12-05 08:25:12
● 2026-03-22 23:11:50
○MXsmx.gradekeeper.com.redcondor.net2015-06-11 → 2017-02-17 · 4 obs
● 2017-02-17 09:05:06
○ 2018-12-05 08:25:12
○ 2026-03-22 23:11:50
○MXvmx.gradekeeper.com.redcondor.net2015-06-11 → 2017-02-17 · 4 obs
● 2017-02-17 09:05:06
○ 2018-12-05 08:25:12
○ 2026-03-22 23:11:50
○A147.202.201.2522015-06-11 → 2017-02-17 · 4 obs
● 2017-02-17 09:05:06
○ 2018-12-05 08:25:12
○ 2026-03-22 23:11:50
●A70.32.22.1022018-12-05 → 2026-03-22 · 3 obs
● 2018-12-05 08:25:12
● 2026-03-22 23:11:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| gradekeeper.com | ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com | 4 records |
✅ Authoritative Response
Server:13.248.158.180
NS records: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for gradekeeper.com (unsigned zone)
⏱️ Timing
Total: 114ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 70.32.22.102 |
| NS | 4 | ns4.a2hosting.com, ns2.a2hosting.com... |
| MX | 1 | gradekeeper.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:68.66.216.44 +include |
| SOA | 1 | ns1.a2hosting.com root.mi3-ls10.a2hostin |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com...)
Analysis
Mail Server Role
gradekeeper.com serves as a mail server for gradekeeper.com.
IP Addresses
gradekeeper.com points to a single IP: 70.32.22.102.
Name Servers
gradekeeper.com is delegated to four name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
gradekeeper.com at least partially shares its name servers with other domains, for instance phuketpr.com, domain-names-for-sale.net, 19.32.70.in-addr.arpa, connectt.io and allme.me.
these name servers are commonly used with the name servers ns1.supercp.com, ns2.supercp.com, ns3.supercp.com, ns4.supercp.com and ns1.mysecurecloudhost.com.
Host names with one IP number: 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; ns4.a2hosting.com points to 99.83.147.209.
Mail Servers
gradekeeper.com is handled by a single mail server.
gradekeeper.com points to IP number 70.32.22.102.