`gustav.dev`

DNSSEC	⚠️ Not signed
A	35.190.26.117
NS	`ns1.yay.com` ⭐
NS	`ns2.yay.com`
NS	`ns3.yay.com`
MX	`mx2.zoho.com` ⭐
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`zoho-verification=zb15646624.zmverify.zoho.com`
TXT	`google-site-verification=LzfXn9S7pRnz85LWMkY52sgI-l1y5nHjnPnGaaA_35Q`
TXT	`v=spf1 include:zoho.com ~all`
SOA	`ns1.yay.com`dns@yay.com 2019-08-01 #1

`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)

7 records (7 active, 0 former)

●NSns1.yay.com2026-03-04 → 2026-03-20 · 2 obs

● 2026-03-04 09:56:56
● 2026-03-20 20:23:00

●NSns2.yay.com2026-03-04 → 2026-03-20 · 2 obs

● 2026-03-04 09:56:56
● 2026-03-20 20:23:00

●NSns3.yay.com2026-03-04 → 2026-03-20 · 2 obs

● 2026-03-04 09:56:56
● 2026-03-20 20:23:00

●MXmx.zoho.com2026-03-04 → 2026-03-20 · 2 obs

● 2026-03-04 09:56:56
● 2026-03-20 20:23:00

●MXmx2.zoho.com2026-03-04 → 2026-03-20 · 2 obs

● 2026-03-04 09:56:56
● 2026-03-20 20:23:00

●MXmx3.zoho.com2026-03-04 → 2026-03-20 · 2 obs

● 2026-03-04 09:56:56
● 2026-03-20 20:23:00

●A35.190.26.1172026-03-04 → 2026-03-20 · 2 obs

● 2026-03-04 09:56:56
● 2026-03-20 20:23:00

gustav.dev resolves to a single IP address: 35.190.26.117.

gustav.dev is delegated to three name servers: ns1.yay.com, ns2.yay.com and ns3.yay.com.

gustav.dev is handled by three mail servers, mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

Host names with two IP numbers:

Host names with one IP number:

The host name mx2.zoho.com points to: 136.143.183.44.

The host name mx3.zoho.com points to: 204.141.43.44.

Host names that point to 136.143.183.44 : mx.zoho.com and mx2.zoho.com.

Host names that point to 204.141.43.44 : mx.zoho.com and mx3.zoho.com.