sendmark.io - dns.ninja
sendmark.io
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-1415.awsdns-48.org ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5305:8700::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1415.awsdns-48.org | ||||||
| A | 205.251.197.135🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1415.awsdns-48.org | ||||||
| NS | ns-1923.awsdns-48.co.uk ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5307:8300::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1923.awsdns-48.co.uk | ||||||
| A | 205.251.199.131🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1923.awsdns-48.co.uk | ||||||
| NS | ns-48.awsdns-06.com ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5300:3000::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-48.awsdns-06.com | ||||||
| A | 205.251.192.48🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-48.awsdns-06.com | ||||||
| NS | ns-537.awsdns-03.net ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5302:1900::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-537.awsdns-03.net | ||||||
| A | 205.251.194.25🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-537.awsdns-03.net | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1782158838 | ||||||
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
●NSns-1415.awsdns-48.org2018-05-08 → 2026-06-22 · 2 obs
● 2026-06-22 20:28:50
●NSns-1923.awsdns-48.co.uk2018-05-08 → 2026-06-22 · 2 obs
● 2026-06-22 20:28:50
●NSns-48.awsdns-06.com2018-05-08 → 2026-06-22 · 2 obs
● 2026-06-22 20:28:50
●NSns-537.awsdns-03.net2018-05-08 → 2026-06-22 · 2 obs
● 2026-06-22 20:28:50
○MXdffaa2ba129fcacd.mx1.mojedomena.seznam.cz2018-05-08 → 2018-05-08 · 3 obs
○ 2026-06-12 08:06:24
○ 2026-06-22 20:28:50
○MXdffaa2ba129fcacd.mx2.mojedomena.seznam.cz2018-05-08 → 2018-05-08 · 3 obs
○ 2026-06-12 08:06:24
○ 2026-06-22 20:28:50
○A52.18.139.1362018-05-08 → 2018-05-08 · 3 obs
○ 2026-06-12 08:06:24
○ 2026-06-22 20:28:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| sendmark.io | ns-537.awsdns-03.net, ns-48.awsdns-06.com, ns-1923.awsdns-48.co.uk, ns-1415.awsdns-48.org | - |
✅ Authoritative Response
Server:205.251.197.135
NS records: ns-537.awsdns-03.net, ns-48.awsdns-06.com, ns-1923.awsdns-48.co.uk, ns-1415.awsdns-48.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sendmark.io (unsigned zone)
⏱️ Timing
Total: 669ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
The authoritative name servers for sendmark.io are ns-48.awsdns-06.com, ns-537.awsdns-03.net, ns-1415.awsdns-48.org and ns-1923.awsdns-48.co.uk.
At least some of sendmark.io's name servers are shared with other domains, for example offerniche.com, splicebook.com, cornmbank.com and two more.
It is common for these name servers to be used in conjunction with the name servers ns-296.awsdns-37.com, ns-1344.awsdns-40.org and ns-1622.awsdns-10.co.uk.
Four hostnames, each resolving to a pair of IP addresses: ns-48.awsdns-06.com directs to 205.251.192.48 and 2600:9000:5300:3000::1; ns-537.awsdns-03.net directs to 205.251.194.25 and 2600:9000:5302:1900::1; ns-1415.awsdns-48.org directs to 205.251.197.135 and 2600:9000:5305:8700::1; ns-1923.awsdns-48.co.uk directs to 205.251.199.131 and 2600:9000:5307:8300::1.