app.off2class.com - dns.ninja

app.off2class.com

DNSSEC⚠️ Not signed
A2606:4700:20::681a:c4d🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::681a:d4d🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::ac43:4403🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.12.77Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.13.77Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.68.3🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
TXTv=spf1 include:mailgun.org ~all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.26.12.77, 104.26.13.77, 172.67.68.3
IPv6 hints2606:4700:20::681a:c4d, 2606:4700:20::681a:d4d, 2606:4700:20::ac43:4403

off2class.com

DNSSEC⚠️ Not signed
A2606:4700:20::681a:c4d🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::681a:d4d🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::ac43:4403🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.12.77Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.13.77Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.68.3🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbruce.ns.cloudflare.com ⭐
NStess.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXT_globalsign-domain-verification=3YuZZGExp0k0uO4yWOXNdJ84UAOEWvsqTLNES-pF74
TXTgoogle-site-verification=klKv3VUYFIwaGeSsGA1xKYMB84xnwPUfY_91PbXJ2UU
TXTv=spf1 a mx ip4:67.227.154.154 include:spf.mandrillapp.com include:_spf.googl...
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.26.12.77, 104.26.13.77, 172.67.68.3
IPv6 hints2606:4700:20::681a:c4d, 2606:4700:20::681a:d4d, 2606:4700:20::ac43:4403
SOAbruce.ns.cloudflare.comdns@cloudflare.com serial=2411010887
rank #992232 globally
rank #429088 in the tld
🔒 HSTS Preload (+subdomains)
📈 Tranco rank: #336,453

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DNS History

12 records (6 active, 6 former)

A104.26.12.77104.26.13.77172.67.68.32606:4700:20::681a:c4d2606:4700:20::681a:d4d2606:4700:20::ac43:440316.58.27.9018.119.5.1018.190.229.4018.216.38.493.142.108.1973.151.112.89
●A104.26.12.772026-07-02 → 2026-08-04 · 3 obs
○ 2026-04-16 01:48:24
● 2026-07-02 20:52:30
● 2026-08-04 00:25:04
●A104.26.13.772026-07-02 → 2026-08-04 · 3 obs
○ 2026-04-16 01:48:24
● 2026-07-02 20:52:30
● 2026-08-04 00:25:04
○A16.58.27.902026-04-16 → 2026-08-04 · 2 obs
○ 2026-04-16 01:48:24
○ 2026-08-04 00:25:04
●A172.67.68.32026-07-02 → 2026-08-04 · 3 obs
○ 2026-04-16 01:48:24
● 2026-07-02 20:52:30
● 2026-08-04 00:25:04
○A18.119.5.102026-04-16 → 2026-04-16 · 3 obs
● 2026-04-16 01:48:24
○ 2026-07-02 20:52:30
○ 2026-08-04 00:25:04
○A18.190.229.402026-04-16 → 2026-04-16 · 3 obs
● 2026-04-16 01:48:24
○ 2026-07-02 20:52:30
○ 2026-08-04 00:25:04
○A18.216.38.492026-04-16 → 2026-04-16 · 3 obs
● 2026-04-16 01:48:24
○ 2026-07-02 20:52:30
○ 2026-08-04 00:25:04
●A2606:4700:20::681a:c4d2026-07-02 → 2026-08-04 · 3 obs
○ 2026-04-16 01:48:24
● 2026-07-02 20:52:30
● 2026-08-04 00:25:04
●A2606:4700:20::681a:d4d2026-07-02 → 2026-08-04 · 3 obs
○ 2026-04-16 01:48:24
● 2026-07-02 20:52:30
● 2026-08-04 00:25:04
●A2606:4700:20::ac43:44032026-07-02 → 2026-08-04 · 3 obs
○ 2026-04-16 01:48:24
● 2026-07-02 20:52:30
● 2026-08-04 00:25:04
○A3.142.108.1972026-04-16 → 2026-08-04 · 2 obs
○ 2026-04-16 01:48:24
○ 2026-08-04 00:25:04
○A3.151.112.892026-04-16 → 2026-08-04 · 2 obs
○ 2026-04-16 01:48:24
○ 2026-08-04 00:25:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net...-
off2class.comtess.ns.cloudflare.com, bruce.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.227

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: 111ms | Queries: -

📄 Records

TypeCountSample Data
A3172.67.68.3, 104.26.12.77...
AAAA32606:4700:20::ac43:4403, 2606:4700:20::681a:c4d...
TXT1v=spf1 include:mailgun.org ~all
HTTPS1{"priority":1,"target":".","alpn":["h2"]

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

app.off2class.com points to 6 IP addresses, including 104.26.12.77, 104.26.13.77 and 172.67.68.3, plus 3 other.

iku.upi.edu, metric-conversions.org, webtoffee.com plus two other host names have IP numbers in common with app.off2class.com.