🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`usercore.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:2299^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:a257^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.34.153^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.162.87^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`irma.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aa6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`irma.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`irma.ns.cloudflare.com`
		A	108.162.192.166^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
		A	172.64.32.166^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
		A	173.245.58.166^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
NS	`toby.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bef^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`toby.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ef^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`toby.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ef^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`toby.ns.cloudflare.com`
		A	108.162.193.239^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`toby.ns.cloudflare.com`
		A	172.64.33.239^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`toby.ns.cloudflare.com`
		A	173.245.59.239^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`toby.ns.cloudflare.com`
MX	`fwd1.porkbun.com` ⭐
		A	44.226.226.6^{🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix}
			PTR	`fwd1.porkbun.com`
MX	`fwd2.porkbun.com` ⭐
		A	52.10.201.111^{🇺🇸 Amazon52.10.0.0/15 EC2 PDX Prefix}
			PTR	`fwd2.porkbun.com`
TXT	`v=spf1 include:_spf.porkbun.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.34.153, 172.67.162.87
		IPv6 hints	2606:4700:3033::6815:2299, 2606:4700:3037::ac43:a257
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=229, name=cloudflare-ech.com
SOA	`irma.ns.cloudflare.com`dns@cloudflare.com serial=2413397036

`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

usercore.com

usercore.dev

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Previous names

Next names

DNS History

12 records (8 active, 4 former)

●NSirma.ns.cloudflare.com2026-09-05 → 2026-09-09 · 2 obs

● 2026-09-05 13:32:28
● 2026-09-09 07:21:22

●NStoby.ns.cloudflare.com2026-09-05 → 2026-09-09 · 2 obs

● 2026-09-05 13:32:28
● 2026-09-09 07:21:22

●MXfwd1.porkbun.com2026-09-05 → 2026-09-09 · 2 obs

● 2026-09-05 13:32:28
● 2026-09-09 07:21:22

●MXfwd2.porkbun.com2026-09-05 → 2026-09-09 · 2 obs

● 2026-09-05 13:32:28
● 2026-09-09 07:21:22

●A104.21.34.1532026-09-05 → 2026-09-09 · 3 obs

○ 2026-09-05 13:32:28
● 2026-09-05 15:41:54
● 2026-09-09 07:21:22

●A172.67.162.872026-09-05 → 2026-09-09 · 3 obs

○ 2026-09-05 13:32:28
● 2026-09-05 15:41:54
● 2026-09-09 07:21:22

○A188.114.96.02026-09-05 → 2026-09-05 · 3 obs

● 2026-09-05 13:32:28
○ 2026-09-05 15:41:54
○ 2026-09-09 07:21:22

○A188.114.97.02026-09-05 → 2026-09-05 · 3 obs

● 2026-09-05 13:32:28
○ 2026-09-05 15:41:54
○ 2026-09-09 07:21:22

●A2606:4700:3033::6815:22992026-09-05 → 2026-09-09 · 3 obs

○ 2026-09-05 13:32:28
● 2026-09-05 15:41:54
● 2026-09-09 07:21:22

●A2606:4700:3037::ac43:a2572026-09-05 → 2026-09-09 · 3 obs

○ 2026-09-05 13:32:28
● 2026-09-05 15:41:54
● 2026-09-09 07:21:22

○A2a06:98c1:3120::2026-09-05 → 2026-09-05 · 3 obs

● 2026-09-05 13:32:28
○ 2026-09-05 15:41:54
○ 2026-09-09 07:21:22

○A2a06:98c1:3121::2026-09-05 → 2026-09-05 · 3 obs

● 2026-09-05 13:32:28
○ 2026-09-05 15:41:54
○ 2026-09-09 07:21:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
usercore.dev	irma.ns.cloudflare.com, toby.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.166

NS records: irma.ns.cloudflare.com, toby.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usercore.dev (unsigned zone)

⏱️ Timing

Total: 961ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.34.153, 172.67.162.87`
AAAA	2	`2606:4700:3037::ac43:a257, 2606:4700:3033::6815:2299`
NS	2	`irma.ns.cloudflare.com, toby.ns.cloudflare.com`
MX	2	`fwd1.porkbun.com (pri: 1), fwd2.porkbun.com (pri: 1)`
TXT	1	`v=spf1 include:_spf.porkbun.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`irma.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

usercore.dev has four IP addresses: 104.21.34.153, 172.67.162.87, 2606:4700:3033::6815:2299 and 2606:4700:3037::ac43:a257.

Among the host names that share IP numbers with usercore.dev are pickmyebike.com, buzhifanji.com, 310uu6.top and two others.

Name Servers

usercore.dev is served by two delegated name servers, irma.ns.cloudflare.com and toby.ns.cloudflare.com.

usercore.dev has the same name server delegation as a number of other domains, such as truesolutions.biz, masonofic.workers.dev, floridatractors.com and two more.

usercore.dev shares at least some of its name servers with other domains, including alvaroterroso.com, jesusmarquez.cv, ontariowebco.com and two others.

These name servers are frequently paired with the name servers hope.ns.cloudflare.com and keaton.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

irma.ns.cloudflare.com carries IP addresses 108.162.192.166, 172.64.32.166 and 173.245.58.166, with 3 other addresses beyond those.

toby.ns.cloudflare.com carries IP addresses 108.162.193.239, 172.64.33.239 and 173.245.59.239, with 3 other addresses beyond those.

Mail Servers

The MX records for usercore.dev point to two mail servers: fwd1.porkbun.com and fwd2.porkbun.com.

usercore.dev has the same mail server arrangement as a number of other domains, for example parichay.net, xldevs.com, slidingdoorsfixphoenix.com and two more.

usercore.dev shares at least some of its mail servers with other domains — for example j03tech.dev, thymeandremedy.com, weil.nyc and two more.

fwd1.porkbun.com and fwd2.porkbun.com each resolve to one IP number: fwd1.porkbun.com points to 44.226.226.6 and fwd2.porkbun.com points to 52.10.201.111.

usercore.dev - robtex.com

usercore.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

`usercore.dev`

`dev`