`web.classapp.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700::6812:4af^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:5af^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.4.175^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.5.175^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/2 ✓ hints match
		IPv4	104.18.4.175, 104.18.5.175
		IPv6	2606:4700::6812:4af, 2606:4700::6812:5af

`classapp.com.br`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700::6812:4af^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:5af^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.4.175^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.5.175^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clark.ns.cloudflare.com` ⭐
NS	`meiling.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
MX	`alt2.aspmx.l.google.com`⁽¹⁰⁾
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
TXT	`MS=ms38226564.`
TXT	`google-site-verification=ASfGasKtybkQr6BzqmQO7iPDqAgcegGcWLTTBkDCaGw; faceboo...`
TXT	`google-site-verification=PpbYLCOTVtM3diU9MsZZK3PAak1Smf5LHwt6DKbXJkc.`
TXT	`google-site-verification=jc2Xr11X8bQq_IwX8c0mXunPzNxGddRIlg_3OjC_hfw.`
TXT	`google-site-verification=lNe7DhS1sJAntrjZ0l0AGxDsFKUPcV9-F4xcNqB7uP0.`
TXT	`google-site-verification=skf1tpJckO-Bb2Gkr0X9Um-ppusdywTv8deS0SjrgzQ.`
TXT	`v=spf1 include:_spf.rdstation.com.br include:spf.mandrillapp.com include:_spf...`
TXT	`zscaler-verification-133327181-5272025-fwOyTy`
HTTPS	HTTP/2 ✓ hints match
		IPv4	104.18.4.175, 104.18.5.175
		IPv6	2606:4700::6812:4af, 2606:4700::6812:5af
SOA	`clark.ns.cloudflare.com`dns@cloudflare.com serial=2399172234

rank #897262 globally
rank #6494 in the tld
📈 Tranco rank: #116,679

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DNS History

4 records (4 active, 0 former)

●A104.18.4.1752026-03-20 → 2026-03-29 · 2 obs

● 2026-03-20 11:25:36
● 2026-03-29 18:43:56

●A104.18.5.1752026-03-20 → 2026-03-29 · 2 obs

● 2026-03-20 11:25:36
● 2026-03-29 18:43:56

●A2606:4700::6812:4af2026-03-20 → 2026-03-29 · 2 obs

● 2026-03-20 11:25:36
● 2026-03-29 18:43:56

●A2606:4700::6812:5af2026-03-20 → 2026-03-29 · 2 obs

● 2026-03-20 11:25:36
● 2026-03-29 18:43:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
classapp.com.br	clark.ns.cloudflare.com, meiling.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.87

NS records: clark.ns.cloudflare.com, meiling.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 738ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.18.5.175, 104.18.4.175`
AAAA	2	`2606:4700::6812:4af, 2606:4700::6812:5af`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`

Analysis

IP Addresses

web.classapp.com.br resolves to four IPs: 2606:4700::6812:4af, 2606:4700::6812:5af, 104.18.4.175 and 104.18.5.175.

Other host names such as classapp.com.br, caseviewnet.com, ns2.voyeurfrance.net, showmecrime.mo.gov.cdn.cloudflare.net and localizecdn.com share IP numbers with web.classapp.com.br.

web.classapp.com.br - robtex.com