app2.off2class.com - dns.ninja

`app2.off2class.com`

CNAME	`dualstack.app-297444867.us-east-2.elb.amazonaws.com`
DNSSEC	⚠️ Not signed
A	3.18.205.60^{🇺🇸 Amazon3.16.0.0/14 EC2 CMH prefix}
		PTR	`ec2-3-18-205-60.us-east-2.compute.amazonaws.com`
A	3.132.77.39^{🇺🇸 Amazon3.132.0.0/14 EC2 CMH prefix}
A	3.133.204.131^{🇺🇸 Amazon3.132.0.0/14 EC2 CMH prefix}

`off2class.com`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:c4d^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:d4d^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4403^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.12.77^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.13.77^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.68.3^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bruce.ns.cloudflare.com` ⭐
NS	`tess.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
TXT	`_globalsign-domain-verification=3YuZZGExp0k0uO4yWOXNdJ84UAOEWvsqTLNES-pF74`
TXT	`google-site-verification=klKv3VUYFIwaGeSsGA1xKYMB84xnwPUfY_91PbXJ2UU`
TXT	`v=spf1 a mx ip4:67.227.154.154 include:spf.mandrillapp.com include:_spf.googl...`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.26.12.77, 104.26.13.77, 172.67.68.3
		IPv6 hints	2606:4700:20::681a:c4d, 2606:4700:20::681a:d4d, 2606:4700:20::ac43:4403
SOA	`bruce.ns.cloudflare.com`dns@cloudflare.com serial=2411010887

rank #992232 globally
rank #429088 in the tld
🔒 HSTS Preload (+subdomains)
📈 Tranco rank: #336,453

Same first word

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app2.trafficmanager.net

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DNS History

4 records (1 active, 3 former)

○A18.217.67.2322026-06-10 → 2026-08-03 · 2 obs

○ 2026-06-10 20:22:20
○ 2026-08-03 19:46:56

○A3.132.46.52026-06-10 → 2026-08-03 · 2 obs

○ 2026-06-10 20:22:20
○ 2026-08-03 19:46:56

○A3.134.222.792026-06-10 → 2026-08-03 · 2 obs

○ 2026-06-10 20:22:20
○ 2026-08-03 19:46:56

●CNAMEdualstack.app-297444867.us-east-2.elb.amazonaws.com2026-06-10 → 2026-08-03 · 2 obs

● 2026-06-10 20:22:20
● 2026-08-03 19:46:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net...	-
off2class.com	tess.ns.cloudflare.com, bruce.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.77

NS records: tess.ns.cloudflare.com, bruce.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for off2class.com (unsigned zone)

⏱️ Timing

Total: 177ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`dualstack.app-297444867.us-east-2.elb.am`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (tess.ns.cloudflare.com, tess.ns.cloudflare.com, tess.ns.cloudflare.com...)

Analysis

IP Addresses

The hostname app2.off2class.com resolves to three IP addresses: 3.18.205.60, 3.132.77.39 and 3.133.204.131.

Other host names, such as lab01.lkcsproof.com, share IP numbers with app2.off2class.com.