hackmd.net - dns.ninja

`hackmd.net`

DNSSEC	⚠️ Not signed
NS	`ns-1086.awsdns-07.org` ⚠️ Not in zone NS records
		A	2600:9000:5304:3e00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1086.awsdns-07.org`
		A	205.251.196.62^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1086.awsdns-07.org`
NS	`ns-1679.awsdns-17.co.uk` ⚠️ Not in zone NS records
		A	2600:9000:5306:8f00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1679.awsdns-17.co.uk`
		A	205.251.198.143^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1679.awsdns-17.co.uk`
NS	`ns-548.awsdns-04.net` ⚠️ Not in zone NS records
		A	2600:9000:5302:2400::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-548.awsdns-04.net`
		A	205.251.194.36^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-548.awsdns-04.net`
NS	`ns-92.awsdns-11.com` ⚠️ Not in zone NS records
		A	2600:9000:5300:5c00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-92.awsdns-11.com`
		A	205.251.192.92^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-92.awsdns-11.com`

`net`

	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.net`nstld@verisign-grs.com serial=1782089545

Same first word

hackmd.io

hackmd.dev

hackmd.net

hackmd.com

hackmd.org

Similar names

mackhd.com

dachkm.org

kamdch.blogspot.com

chkadm.ru

mkdach.pl

kchadm.ru

chkadm.kasserver.com

ahkmdc.com

camhdk.com

dhcmak.com

DNS History

18 records (4 active, 14 former)

●NSns-1086.awsdns-07.org2026-02-17 → 2026-06-22 · 3 obs

○ 2017-06-10 01:19:10
● 2026-02-17 06:12:20
● 2026-06-22 01:10:38

●NSns-1679.awsdns-17.co.uk2026-02-17 → 2026-06-22 · 3 obs

○ 2017-06-10 01:19:10
● 2026-02-17 06:12:20
● 2026-06-22 01:10:38

●NSns-548.awsdns-04.net2026-02-17 → 2026-06-22 · 3 obs

○ 2017-06-10 01:19:10
● 2026-02-17 06:12:20
● 2026-06-22 01:10:38

●NSns-92.awsdns-11.com2026-02-17 → 2026-06-22 · 3 obs

○ 2017-06-10 01:19:10
● 2026-02-17 06:12:20
● 2026-06-22 01:10:38

○NSns1.byet.org2017-01-19 → 2017-06-10 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2017-06-10 01:19:10
○ 2026-02-17 06:12:20
○ 2026-06-22 01:10:38

○NSns1.onlydomains.com2016-11-11 → 2017-01-14 · 4 obs

● 2016-11-11 01:45:18
● 2017-01-14 18:38:50
○ 2017-01-19 10:41:16
○ 2026-06-22 01:10:38

○NSns1.wk.vc2017-01-19 → 2017-06-10 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2017-06-10 01:19:10
○ 2026-02-17 06:12:20
○ 2026-06-22 01:10:38

○NSns2.byet.org2017-01-19 → 2017-06-10 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2017-06-10 01:19:10
○ 2026-02-17 06:12:20
○ 2026-06-22 01:10:38

○NSns2.onlydomains.com2016-11-11 → 2017-01-14 · 4 obs

● 2016-11-11 01:45:18
● 2017-01-14 18:38:50
○ 2017-01-19 10:41:16
○ 2026-06-22 01:10:38

○NSns2.wk.vc2017-01-19 → 2017-06-10 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2017-06-10 01:19:10
○ 2026-02-17 06:12:20
○ 2026-06-22 01:10:38

○NSns3.byet.org2017-01-19 → 2017-06-10 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2017-06-10 01:19:10
○ 2026-02-17 06:12:20
○ 2026-06-22 01:10:38

○NSns3.onlydomains.com2016-11-11 → 2017-01-14 · 4 obs

● 2016-11-11 01:45:18
● 2017-01-14 18:38:50
○ 2017-01-19 10:41:16
○ 2026-06-22 01:10:38

○NSns4.byet.org2017-01-19 → 2017-06-10 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2017-06-10 01:19:10
○ 2026-02-17 06:12:20
○ 2026-06-22 01:10:38

○NSns5.byet.org2017-01-19 → 2017-06-10 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2017-06-10 01:19:10
○ 2026-02-17 06:12:20
○ 2026-06-22 01:10:38

○MXmail.hackmd.net2016-11-11 → 2017-01-14 · 4 obs

● 2016-11-11 01:45:18
● 2017-01-14 18:38:50
○ 2017-01-19 10:41:16
○ 2026-06-22 01:10:38

○MXmx.hackmd.net2017-01-19 → 2026-02-17 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2026-02-17 06:12:20
○ 2026-02-28 10:27:40
○ 2026-06-22 01:10:38

○A185.27.134.1122017-01-19 → 2026-02-17 · 5 obs

○ 2017-01-14 18:38:50
● 2017-01-19 10:41:16
● 2026-02-17 06:12:20
○ 2026-02-28 10:27:40
○ 2026-06-22 01:10:38

○A188.40.66.232016-11-11 → 2017-01-14 · 4 obs

● 2016-11-11 01:45:18
● 2017-01-14 18:38:50
○ 2017-01-19 10:41:16
○ 2026-06-22 01:10:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	f.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...	-
hackmd.net	ns-92.awsdns-11.com, ns-548.awsdns-04.net, ns-1679.awsdns-17.co.uk, ns-1086.awsdns-07.org	2 records

✅ Authoritative Response

Server:205.251.192.92

NS records: ns-92.awsdns-11.com, ns-548.awsdns-04.net, ns-1679.awsdns-17.co.uk, ns-1086.awsdns-07.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hackmd.net (unsigned zone)

⏱️ Timing

Total: 383ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-548.awsdns-04.net, ns-548.awsdns-04.net)

Analysis

Name Servers

The authoritative name servers for hackmd.net are ns-92.awsdns-11.com, ns-548.awsdns-04.net, ns-1086.awsdns-07.org and ns-1679.awsdns-17.co.uk.

At least some of hackmd.net's name servers are shared with other domains, for example shirane.or.jp, pervpatrols.com, macombdaily.com and two more.

These name servers tend to co-occur with sdns3.ultradns.biz, sdns3.ultradns.com, ns-531.awsdns-02.net and 4 other name servers in the same DNS delegations.

Four hostnames, each resolving to a pair of IP addresses: ns-92.awsdns-11.com directs to 205.251.192.92 and 2600:9000:5300:5c00::1; ns-548.awsdns-04.net directs to 205.251.194.36 and 2600:9000:5302:2400::1; ns-1086.awsdns-07.org directs to 205.251.196.62 and 2600:9000:5304:3e00::1; ns-1679.awsdns-17.co.uk directs to 205.251.198.143 and 2600:9000:5306:8f00::1.