`zackoverflow.dev`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`glen.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`glen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`glen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`glen.ns.cloudflare.com`
		A	108.162.193.169^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`glen.ns.cloudflare.com`
		A	172.64.33.169^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`glen.ns.cloudflare.com`
		A	173.245.59.169^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`glen.ns.cloudflare.com`
NS	`nina.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a88^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c088^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2088^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nina.ns.cloudflare.com`
		A	108.162.192.136^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	172.64.32.136^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	173.245.58.136^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
SOA	`glen.ns.cloudflare.com`dns@cloudflare.com serial=2411507747

`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)

Same first word

zackoverflow.dev

DNS History

8 records (8 active, 0 former)

●NSglen.ns.cloudflare.com2026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

●NSnina.ns.cloudflare.com2026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

●MXeforward1.registrar-servers.com2026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

●MXeforward2.registrar-servers.com2026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

●MXeforward3.registrar-servers.com2026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

●MXeforward4.registrar-servers.com2026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

●MXeforward5.registrar-servers.com2026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

●A76.76.21.212026-06-23 → 2026-08-10 · 2 obs

● 2026-06-23 22:42:24
● 2026-08-10 12:38:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...	10 records
zackoverflow.dev	glen.ns.cloudflare.com, nina.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.136

NS records: glen.ns.cloudflare.com, nina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zackoverflow.dev (unsigned zone)

⏱️ Timing

Total: 438ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	2	`glen.ns.cloudflare.com, nina.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
SOA	1	`glen.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

IP Addresses

zackoverflow.dev resolves to just one IP address, 76.76.21.21.

Two other host names, along with xn--svanemrket-i6a.dk, mlsi.in and kdxdz.com, also share IP numbers with zackoverflow.dev.

Name Servers

Two name servers handle the delegation for zackoverflow.dev: glen.ns.cloudflare.com and nina.ns.cloudflare.com.

zackoverflow.dev shares its NS records with other domains, for example atrekhoshbo.com, ecohost.co, isupportpiracy.com and two others.

zackoverflow.dev has at least partial name server overlap with other domains, such as rotana.co.il, formonline.org, heattack.com and two others.

It is common to find these name servers paired with the name servers hal.ns.cloudflare.com.

DNS names with 6 IP addresses:

glen.ns.cloudflare.com resolves to 108.162.193.169, 172.64.33.169 and 173.245.59.169 among others, with 3 other IP addresses in total.

nina.ns.cloudflare.com resolves to 108.162.192.136, 172.64.32.136 and 173.245.58.136 among others, with 3 other IP addresses in total.

Mail Servers

Mail for zackoverflow.dev is handled by five mail servers, namely eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

There is at least a partial MX overlap between zackoverflow.dev and other domains, including aaronlevin.ca, istanbuleskortlari.net, bmpbrave.com and two others.

These mail servers tend to be used in combination with the mail servers eforward4.registrar-servers.com and eforward5.registrar-servers.com.

Host names that point to one IP address:

The hostname eforward1.registrar-servers.com resolves to 162.255.118.51.

The hostname eforward2.registrar-servers.com resolves to 162.255.118.52.

The hostname eforward3.registrar-servers.com resolves to 162.255.118.51.

The hostname eforward4.registrar-servers.com resolves to 162.255.118.52.

The hostname eforward5.registrar-servers.com resolves to 162.255.118.51.

Each of eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com resolves to 162.255.118.51.

eforward2.registrar-servers.com along with eforward4.registrar-servers.com each resolve to 162.255.118.52 IP addresses.