postmaster.tools - dns.ninja
postmaster.tools
| DNSSEC | ⚠️ Not signed | ||||||
| A | 139.162.158.110🇩🇪 AKAMAI-LINODE-AP139.162.128.0/19 Akamai Technologies | ||||||
| NS | ns-1363.awsdns-42.org ⭐ | ||||||
| A | 2600:9000:5305:5300::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1363.awsdns-42.org | ||||||
| A | 205.251.197.83🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1363.awsdns-42.org | ||||||
| NS | ns-1837.awsdns-37.co.uk | ||||||
| A | 2600:9000:5307:2d00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1837.awsdns-37.co.uk | ||||||
| A | 205.251.199.45🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1837.awsdns-37.co.uk | ||||||
| NS | ns-194.awsdns-24.com | ||||||
| A | 2600:9000:5300:c200::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-194.awsdns-24.com | ||||||
| A | 205.251.192.194🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| NS | ns-833.awsdns-40.net | ||||||
| A | 2600:9000:5303:4100::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-833.awsdns-40.net | ||||||
| A | 205.251.195.65🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-833.awsdns-40.net | ||||||
| MX | mx.nomail.mx ⭐ | ||||||
| A | 127.0.0.1 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns-1363.awsdns-42.orgawsdns-hostmaster@amazon.com serial=1 | ||||||
tools
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.tools ⭐ | ||||||
| NS | v0n1.nic.tools | ||||||
| NS | v0n2.nic.tools | ||||||
| NS | v0n3.nic.tools | ||||||
| NS | v2n0.nic.tools | ||||||
| NS | v2n1.nic.tools | ||||||
| SOA | v0n0.nic.toolshostmaster@donuts.email serial=1784605204 | ||||||
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSns-1363.awsdns-42.org2018-12-26 → 2026-07-21 · 2 obs
● 2026-07-21 03:59:22
●NSns-1837.awsdns-37.co.uk2018-12-26 → 2026-07-21 · 2 obs
● 2026-07-21 03:59:22
●NSns-194.awsdns-24.com2018-12-26 → 2026-07-21 · 2 obs
● 2026-07-21 03:59:22
●NSns-833.awsdns-40.net2018-12-26 → 2026-07-21 · 2 obs
● 2026-07-21 03:59:22
●MXmx.nomail.mx2026-02-18 → 2026-07-21 · 3 obs
● 2026-02-18 20:00:20
● 2026-07-21 03:59:22
○MXmx.spambox.it2018-12-26 → 2018-12-26 · 3 obs
○ 2026-02-18 20:00:20
○ 2026-07-21 03:59:22
●A139.162.158.1102018-12-26 → 2026-07-21 · 2 obs
● 2026-07-21 03:59:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tools | v0n0.nic.tools, v0n1.nic.tools, v0n2.nic.tools, v0n3.nic.tools... | - |
| postmaster.tools | ns-194.awsdns-24.com, ns-1363.awsdns-42.org, ns-833.awsdns-40.net, ns-1837.awsdns-37.co.uk | - |
✅ Authoritative Response
Server:205.251.197.83
NS records: ns-194.awsdns-24.com, ns-1363.awsdns-42.org, ns-833.awsdns-40.net, ns-1837.awsdns-37.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for postmaster.tools (unsigned zone)
⏱️ Timing
Total: 489ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.162.158.110 |
| NS | 4 | ns-1363.awsdns-42.org, ns-1837.awsdns-37.co.uk... |
| MX | 1 | mx.nomail.mx (pri: 10) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns-1363.awsdns-42.org awsdns-hostmaster. |
Analysis
IP Addresses
postmaster.tools points to a single IP number: 139.162.158.110.
Additional host names — rs677-realsender.com, nomail.mx, rs800-realsender.com and two others — share IP numbers with postmaster.tools.
Name Servers
postmaster.tools has four authoritative name servers: ns-194.awsdns-24.com, ns-833.awsdns-40.net, ns-1363.awsdns-42.org and ns-1837.awsdns-37.co.uk.
postmaster.tools has at least partial name server overlap with other domains, such as cegrupa.com, dts8zy8jzywwi.cloudfront.net, blueprint.ai and two others.
ns-194.awsdns-24.com, ns-833.awsdns-40.net, ns-1363.awsdns-42.org and ns-1837.awsdns-37.co.uk all point to exactly two IP numbers each: ns-194.awsdns-24.com → 205.251.192.194 and 2600:9000:5300:c200::1; ns-833.awsdns-40.net → 205.251.195.65 and 2600:9000:5303:4100::1; ns-1363.awsdns-42.org → 205.251.197.83 and 2600:9000:5305:5300::1; ns-1837.awsdns-37.co.uk → 205.251.199.45 and 2600:9000:5307:2d00::1.
Mail Servers
postmaster.tools has one mail server: mx.nomail.mx.
postmaster.tools shares the same mail server setup as other domains, including securemail.app, nomail.mx, mx1.email and two others.