🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`checkback.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:5581^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:cdbb^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.85.129^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.205.187^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`julissa.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2669^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c269^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`julissa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2269^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`julissa.ns.cloudflare.com`
		A	108.162.194.105^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
		A	162.159.38.105^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
		A	172.64.34.105^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
NS	`neil.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`neil.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`neil.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`neil.ns.cloudflare.com`
		A	108.162.193.211^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`neil.ns.cloudflare.com`
		A	172.64.33.211^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`neil.ns.cloudflare.com`
		A	173.245.59.211^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`neil.ns.cloudflare.com`
MX	`mx2.zoho.com` ⭐
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			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	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			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	`mx.zoho.com`⁽⁵⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 include:zohomail.com include:spf.resend.com ~all`
TXT	`zoho-verification=zb44243158.zmverify.zoho.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.85.129, 172.67.205.187
		IPv6 hints	2606:4700:3030::6815:5581, 2606:4700:3033::ac43:cdbb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=115, name=cloudflare-ech.com
SOA	`julissa.ns.cloudflare.com`dns@cloudflare.com serial=2414719793

`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

checkback.dev

checkback.ru

checkback.help

checkback.io

checkback.ie

checkback.uk

checkback.ink

checkback.co.uk

checkback.workers.dev

checkback.com

checkback.net

checkback.vn

checkback.es

checkback.de

checkback.org

Similar names

Previous names

Next names

DNS History

13 records (9 active, 4 former)

●NSjulissa.ns.cloudflare.com2026-09-04 → 2026-09-14 · 2 obs

● 2026-09-04 18:14:54
● 2026-09-14 16:37:12

●NSneil.ns.cloudflare.com2026-09-04 → 2026-09-14 · 2 obs

● 2026-09-04 18:14:54
● 2026-09-14 16:37:12

●MXmx.zoho.com2026-09-04 → 2026-09-14 · 2 obs

● 2026-09-04 18:14:54
● 2026-09-14 16:37:12

●MXmx2.zoho.com2026-09-04 → 2026-09-14 · 2 obs

● 2026-09-04 18:14:54
● 2026-09-14 16:37:12

●MXmx3.zoho.com2026-09-04 → 2026-09-14 · 2 obs

● 2026-09-04 18:14:54
● 2026-09-14 16:37:12

●A104.21.85.1292026-09-12 → 2026-09-14 · 3 obs

○ 2026-09-04 18:14:54
● 2026-09-12 02:54:44
● 2026-09-14 16:37:12

●A172.67.205.1872026-09-12 → 2026-09-14 · 3 obs

○ 2026-09-04 18:14:54
● 2026-09-12 02:54:44
● 2026-09-14 16:37:12

○A188.114.96.02026-09-04 → 2026-09-04 · 3 obs

● 2026-09-04 18:14:54
○ 2026-09-12 02:54:44
○ 2026-09-14 16:37:12

○A188.114.97.02026-09-04 → 2026-09-04 · 3 obs

● 2026-09-04 18:14:54
○ 2026-09-12 02:54:44
○ 2026-09-14 16:37:12

●A2606:4700:3030::6815:55812026-09-12 → 2026-09-14 · 3 obs

○ 2026-09-04 18:14:54
● 2026-09-12 02:54:44
● 2026-09-14 16:37:12

●A2606:4700:3033::ac43:cdbb2026-09-12 → 2026-09-14 · 3 obs

○ 2026-09-04 18:14:54
● 2026-09-12 02:54:44
● 2026-09-14 16:37:12

○A2a06:98c1:3120::2026-09-04 → 2026-09-04 · 3 obs

● 2026-09-04 18:14:54
○ 2026-09-12 02:54:44
○ 2026-09-14 16:37:12

○A2a06:98c1:3121::2026-09-04 → 2026-09-04 · 3 obs

● 2026-09-04 18:14:54
○ 2026-09-12 02:54:44
○ 2026-09-14 16:37:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
checkback.dev	neil.ns.cloudflare.com, julissa.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.211

NS records: neil.ns.cloudflare.com, julissa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checkback.dev (unsigned zone)

⏱️ Timing

Total: 2501ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.205.187, 104.21.85.129`
AAAA	2	`2606:4700:3033::ac43:cdbb, 2606:4700:3030::6815:5581`
NS	2	`julissa.ns.cloudflare.com, neil.ns.cloudflare.com`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	2	`v=spf1 include:zohomail.com include:spf., zoho-verification=zb44243158.zmverify.zo`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`julissa.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

checkback.dev has four IP addresses: 104.21.85.129, 172.67.205.187, 2606:4700:3030::6815:5581 and 2606:4700:3033::ac43:cdbb.

8pggame-a.com, soylu.web.tr, www.zhuashuo.com and two other host names share IP numbers with checkback.dev.

Name Servers

checkback.dev uses two name servers for its delegation: julissa.ns.cloudflare.com and neil.ns.cloudflare.com.

checkback.dev uses the same name servers as several other domains — among them mayibiji.com, markkukopponen396.workers.dev, pdlwy.com and two more.

checkback.dev shares at least some of its name servers with other domains, including oceanpirogue.com, still-looking-for-name.workers.dev, cristieschaw4dkry.pages.dev and two others.

These name servers are frequently paired with the name servers amber.ns.cloudflare.com, yew.ns.cloudflare.com and wilson.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname julissa.ns.cloudflare.com directs to 108.162.194.105, 162.159.38.105 and 172.64.34.105 along with 3 other IP addresses.

Hostname neil.ns.cloudflare.com directs to 108.162.193.211, 172.64.33.211 and 173.245.59.211 along with 3 other IP addresses.

Mail Servers

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

checkback.dev has at least partial mail server overlap with other domains such as playspodx.com, cashtravelhubrdc.com, jordanpguzman.com and two more.

mx2.zoho.com resolves to 136.143.191.44, and so do mx3.zoho.com and mx.zoho.com — all three share that one IP address.

The host names mx2.zoho.com, mx3.zoho.com and mx.zoho.com each resolve to 136.143.191.44.

checkback.dev - robtex.com

checkback.dev

dev

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`checkback.dev`

`dev`