trailhead.dev - dns.ninja

`trailhead.dev`

DNSSEC	⚠️ Not signed
A	146.75.29.145^{🇺🇸 Fastly146.75.28.0/22}
NS	`dns01.salesforce.com` ⭐
		A	2001:502:f3ff::9^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`dns01.salesforce.com`
		A	204.74.108.235^{🇺🇸 MAINT-ID-12008204.74.108.0/24 Neustar}
			PTR	`dns01.salesforce.com`
NS	`dns02.salesforce.com`
		A	2610:a1:1014::9^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`dns02.salesforce.com`
		A	204.74.109.235^{🇺🇸 MAINT-ID-12008204.74.109.0/24 Neustar}
			PTR	`dns02.salesforce.com`
NS	`dns03.salesforce.com`
		A	2610:a1:1015::9^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`dns03.salesforce.com`
		A	199.7.68.235^{🇺🇸 MAINT-ID-12008199.7.68.0/24 Neustar}
			PTR	`dns03.salesforce.com`
NS	`dns04.salesforce.com`
		A	2001:502:4612::9^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`dns04.salesforce.com`
		A	199.7.69.235^{🇺🇸 MAINT-ID-12008199.7.69.0/24 Neustar}
			PTR	`dns04.salesforce.com`
NS	`dns05.salesforce.com`
		A	2610:a1:1016::9^{🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar}
			PTR	`dns05.salesforce.com`
		A	204.74.114.235^{🇺🇸 MAINT-ID-12008204.74.114.0/24 Neustar}
			PTR	`dns05.salesforce.com`
NS	`dns06.salesforce.com`
		A	2610:a1:1017::9^{🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar}
			PTR	`dns06.salesforce.com`
		A	204.74.115.235^{🇺🇸 MAINT-ID-12008204.74.115.0/24 Neustar}
			PTR	`dns06.salesforce.com`
TXT	`v=spf1 -all`
TXT	`_globalsign-domain-verification=JoYbOPDKWZribGZezXhTmclcA86CzQ_j2ggEaNGxn8`
SOA	`dns01.salesforce.com`hostmaster@salesforce.com 2019-02-12 #8

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Subdomains

www.trailhead.dev

Same first word

Similar names

halitrade.com

dialearth.com

trialhead.com

deathrail.com

deltahair.com

dlairheat.com

earthdial.com

dlheatair.com

theraldia.co.uk

leahraidt.com

thedialar.com

tialheard.com

DNS History

12 records (7 active, 5 former)

●NSdns01.salesforce.com2026-02-20 → 2026-07-23 · 2 obs

● 2026-02-20 22:58:38
● 2026-07-23 20:26:40

●NSdns02.salesforce.com2026-02-20 → 2026-07-23 · 2 obs

● 2026-02-20 22:58:38
● 2026-07-23 20:26:40

●NSdns03.salesforce.com2026-02-20 → 2026-07-23 · 2 obs

● 2026-02-20 22:58:38
● 2026-07-23 20:26:40

●NSdns04.salesforce.com2026-02-20 → 2026-07-23 · 2 obs

● 2026-02-20 22:58:38
● 2026-07-23 20:26:40

●NSdns05.salesforce.com2026-02-20 → 2026-07-23 · 2 obs

● 2026-02-20 22:58:38
● 2026-07-23 20:26:40

●NSdns06.salesforce.com2026-02-20 → 2026-07-23 · 2 obs

● 2026-02-20 22:58:38
● 2026-07-23 20:26:40

○A146.75.117.1452026-03-16 → 2026-07-15 · 7 obs

○ 2026-02-25 13:23:52
● 2026-03-16 13:53:50
● 2026-03-16 16:38:24
○ 2026-03-18 21:19:18
● 2026-07-15 15:55:34
○ 2026-07-16 05:38:04
○ 2026-07-23 20:26:40

●A146.75.29.1452026-03-18 → 2026-07-23 · 10 obs

○ 2026-03-16 16:38:24
● 2026-03-18 21:19:18
● 2026-03-22 00:16:38
○ 2026-03-22 07:41:20
○ 2026-04-17 01:22:44
● 2026-04-20 03:51:40
● 2026-04-23 19:30:20
○ 2026-05-12 09:47:36
● 2026-07-21 01:07:34
● 2026-07-23 20:26:40

○A146.75.93.1452026-03-22 → 2026-07-16 · 7 obs

○ 2026-02-20 22:58:38
○ 2026-03-22 00:16:38
● 2026-03-22 07:41:20
○ 2026-04-17 01:22:44
● 2026-07-16 05:38:04
○ 2026-07-19 23:11:44
○ 2026-07-23 20:26:40

○A151.101.205.1452026-02-20 → 2026-05-12 · 7 obs

● 2026-02-20 22:58:38
● 2026-02-25 13:23:52
○ 2026-03-16 13:53:50
○ 2026-04-23 19:30:20
● 2026-05-12 09:47:36
○ 2026-07-15 15:55:34
○ 2026-07-23 20:26:40

○A151.101.41.1452026-07-19 → 2026-07-19 · 4 obs

○ 2026-07-16 05:38:04
● 2026-07-19 23:11:44
○ 2026-07-21 01:07:34
○ 2026-07-23 20:26:40

○A199.232.37.1452026-04-17 → 2026-04-17 · 4 obs

○ 2026-03-22 07:41:20
● 2026-04-17 01:22:44
○ 2026-04-20 03:51:40
○ 2026-07-23 20:26:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...	-
trailhead.dev	dns03.salesforce.com, dns02.salesforce.com, dns05.salesforce.com, dns01.salesforce.com...	-

✅ Authoritative Response

Server:204.74.108.235

NS records: dns03.salesforce.com, dns02.salesforce.com, dns05.salesforce.com, dns01.salesforce.com, dns06.salesforce.com, dns04.salesforce.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for trailhead.dev (unsigned zone)

⏱️ Timing

Total: 509ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`146.75.29.145`
NS	6	`dns01.salesforce.com, dns02.salesforce.com...`
TXT	2	`v=spf1 -all, _globalsign-domain-verification=JoYbOPDK`
SOA	1	`dns01.salesforce.com hostmaster.salesfor`

Analysis

Hierarchy

www.trailhead.dev is delegated beneath trailhead.dev.

IP Addresses

trailhead.dev has exactly one IP address — 146.75.29.145.

Further host names like crm.dev and admin.dev overlap in IP numbers with trailhead.dev.

Name Servers

trailhead.dev is delegated to 6 name servers: dns01.salesforce.com, dns02.salesforce.com, dns03.salesforce.com and 3 other.

There is at least partial name server overlap between trailhead.dev and other domains — tracesolution.de, 39.110.13.in-addr.arpa, 14.110.13.in-addr.arpa and two more among them.

These name servers tend to appear together with the name servers dns04.salesforce.com, dns05.salesforce.com and dns06.salesforce.com, plus two others.

Host names pointing to two IP addresses:

dns01.salesforce.com points to 204.74.108.235 and 2001:502:f3ff::9.

dns02.salesforce.com points to 204.74.109.235 and 2610:a1:1014::9.

dns03.salesforce.com points to 199.7.68.235 and 2610:a1:1015::9.

dns04.salesforce.com points to 199.7.69.235 and 2001:502:4612::9.

dns05.salesforce.com points to 204.74.114.235 and 2610:a1:1016::9.

dns06.salesforce.com points to 204.74.115.235 and 2610:a1:1017::9.