tutorfirst.com - robtex.com
tutorfirst.com
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=1774398522 | ||||||
Subdomains
mail.tutorfirst.com |
Same first word
tutorfirst.com |
Similar names
DNS History
15 records (10 active, 5 former)
●NSns-1387.awsdns-45.org2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 00:31:46
● 2026-03-25 00:31:48
●NSns-1856.awsdns-40.co.uk2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 00:31:46
● 2026-03-25 00:31:48
●NSns-257.awsdns-32.com2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 00:31:46
● 2026-03-25 00:31:48
●NSns-765.awsdns-31.net2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 00:31:46
● 2026-03-25 00:31:48
○NSns63.domaincontrol.com2015-06-21 → 2026-02-22 · 4 obs
● 2026-02-22 02:30:10
○ 2026-03-25 00:31:46
○ 2026-03-25 00:31:48
○NSns64.domaincontrol.com2015-06-21 → 2026-02-22 · 4 obs
● 2026-02-22 02:30:10
○ 2026-03-25 00:31:46
○ 2026-03-25 00:31:48
●MXalt1.aspmx.l.google.com2026-02-22 → 2026-03-25 · 3 obs
● 2026-02-22 02:30:10
● 2026-03-25 00:31:48
●MXalt2.aspmx.l.google.com2026-02-22 → 2026-03-25 · 3 obs
● 2026-02-22 02:30:10
● 2026-03-25 00:31:48
●MXalt3.aspmx.l.google.com2026-02-22 → 2026-03-25 · 3 obs
● 2026-02-22 02:30:10
● 2026-03-25 00:31:48
●MXalt4.aspmx.l.google.com2026-02-22 → 2026-03-25 · 3 obs
● 2026-02-22 02:30:10
● 2026-03-25 00:31:48
●MXaspmx.l.google.com2026-02-22 → 2026-03-25 · 3 obs
● 2026-02-22 02:30:10
● 2026-03-25 00:31:48
○MXmail.tutorfirst.com2015-06-21 → 2017-05-18 · 4 obs
● 2017-05-18 13:08:30
○ 2026-02-22 02:30:10
○ 2026-03-25 00:31:48
○A192.155.192.1262015-06-21 → 2016-04-02 · 4 obs
● 2016-04-02 14:07:42
○ 2016-09-14 17:30:24
○ 2026-03-25 00:31:48
●A44.210.175.92026-02-22 → 2026-03-25 · 3 obs
● 2026-02-22 02:30:10
● 2026-03-25 00:31:48
○A52.21.190.592016-09-14 → 2017-05-18 · 5 obs
● 2016-09-14 17:30:24
● 2017-05-18 13:08:30
○ 2026-02-22 02:30:10
○ 2026-03-25 00:31:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| tutorfirst.com | ns-257.awsdns-32.com, ns-765.awsdns-31.net, ns-1856.awsdns-40.co.uk, ns-1387.awsdns-45.org | 1 record |
✅ Authoritative Response
Server:205.251.194.253
NS records: ns-257.awsdns-32.com, ns-765.awsdns-31.net, ns-1856.awsdns-40.co.uk, ns-1387.awsdns-45.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tutorfirst.com (unsigned zone)
⏱️ Timing
Total: 481ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 44.210.175.9 |
| NS | 4 | ns-1387.awsdns-45.org, ns-1856.awsdns-40.co.uk... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns-1387.awsdns-45.org awsdns-hostmaster. |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-257.awsdns-32.com)
Analysis
Hierarchy
tutorfirst.com is parent of mail.tutorfirst.com.
IP Addresses
tutorfirst.com points to a single IP: 44.210.175.9.
Name Servers
tutorfirst.com is delegated to four name servers: ns-257.awsdns-32.com, ns-765.awsdns-31.net, ns-1387.awsdns-45.org and ns-1856.awsdns-40.co.uk.
tutorfirst.com at least partially shares its name servers with other domains, for instance incochin.com, epicorpets.com, exciseqa.avalara.net, goalt3.net and naniwa-nandemo.com.
These name servers are commonly used with ns-261.awsdns-32.com, ns-653.awsdns-17.net, ns-1527.awsdns-62.org, a.ns.campaign.adobe.com, b.ns.campaign.adobe.com, c.ns.campaign.adobe.com and d.ns.campaign.adobe.com.
Host names with two IPs: ns-257.awsdns-32.com points to 2600:9000:5301:100::1 and 205.251.193.1; ns-765.awsdns-31.net points to 2600:9000:5302:fd00::1 and 205.251.194.253; ns-1387.awsdns-45.org points to 2600:9000:5305:6b00::1 and 205.251.197.107; ns-1856.awsdns-40.co.uk points to 2600:9000:5307:4000::1 and 205.251.199.64.
Mail Servers
Five mail servers handle tutorfirst.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
tutorfirst.com shares some mail servers with other domains, including mastersofbusiness.net, tinokat.com, ns500758.ns500759.ns500758.ns500698.ns500698.ns500698.ns500736.ns500735.ns500735.ns500735.ns500708.ns500576.ns500698.ns500576.ns500576.ns500652.trackreceptor.com, ns500731.ns500754.ns500742.ns500671.ns500731.ns500705.ns500688.ns500688.ns500678.ns500291.ns500291.ns500291.ns500131.lustychickser.com and ns500759.ns500698.ns500759.ns500758.ns500758.ns500698.ns500736.ns500698.ns500698.ns500736.ns500735.ns500698.ns500576.ns500576.ns500576.ns500619.ns500619.trackreceptor.com.
These mail servers are commonly used alongside the mail servers aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4023:c0b::1a and 74.125.137.26.
alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1a and 192.178.128.27.
alt2.aspmx.l.google.com points to 2a00:1450:4013:c1e::1b and 192.178.213.26.
alt3.aspmx.l.google.com points to 2a00:1450:4001:c21::1a and 142.251.127.26.
alt4.aspmx.l.google.com points to 2a00:1450:4025:c01::1b and 142.250.147.26.