27
records
IPv4 Addresses
TTL
classapp.com.br. 300 IN A 104.18.4.175 classapp.com.br. 300 IN A 104.18.5.175
IPv6 Addresses
TTL
classapp.com.br. 300 IN AAAA 2606:4700:0:0:0:0:6812:4AF classapp.com.br. 300 IN AAAA 2606:4700:0:0:0:0:6812:5AF
Name Servers
TTL
classapp.com.br. 60 IN NS clark.ns.cloudflare.com. classapp.com.br. 60 IN NS meiling.ns.cloudflare.com.
Mail Servers
TTL
5m
5m
5m
5m
5m
classapp.com.br. 300 IN MX 1 ASPMX.L.GOOGLE.COM. classapp.com.br. 300 IN MX 5 ALT1.ASPMX.L.GOOGLE.COM. classapp.com.br. 300 IN MX 10 ALT2.ASPMX.L.GOOGLE.COM. classapp.com.br. 300 IN MX 10 ALT3.ASPMX.L.GOOGLE.COM. classapp.com.br. 300 IN MX 10 ALT4.ASPMX.L.GOOGLE.COM.
SOA Details
TTL
20m
SOA
Responsible
dns.cloudflare.com
SOA
Serial
2403319436
SOA
Times
Refresh
2h
Retry
40m
Expire
7d
Minimum TTL
30m
classapp.com.br. 1200 IN SOA clark.ns.cloudflare.com. dns.cloudflare.com. 2403319436 10000 2400 604800 1800
Certificate Authority Authorization
TTL
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
TTL
DMARC
Policy
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
none
quarantine
reject
20m
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected].
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
classapp.com.br. 1200 IN DMARC v=DMARC1;p=none;rua=mailto:[email protected].
DKIM
TTL
DKIM
Selector
mandrill
v=DKIM1
k=rsa
5m
Public Key
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J...
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB
classapp.com.br. 300 IN DKIM v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;.
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| ~ Softfail | all |
—
|
|
5m
classapp.com.br. 300 IN TXT "v=spf1 include:_spf.rdstation.com.br include:spf.mandrillapp.com include:_spf.google.com include:_spf.superlogica.com include:amazonses.com include:mail.zendesk.com ~all"
MTA-STS
TTL
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).
Text Content
TTL
MS=ms38226564.
5m
anthropic-domain-verification-pq1hh0=H2d3fZxgJcejKniZ5Xen0NfSc
5m
google-site-verification=ASfGasKtybkQr6BzqmQO7iPDqAgcegGcWLTTBkDCaGw; facebook-domain-verification=ohc54qbg58nm8d2sw7hd8p2al8noni
MS=ms38226564
5m
google-site-verification=PpbYLCOTVtM3diU9MsZZK3PAak1Smf5LHwt6DKbXJkc.
5m
google-site-verification=jc2Xr11X8bQq_IwX8c0mXunPzNxGddRIlg_3OjC_hfw.
5m
google-site-verification=lNe7DhS1sJAntrjZ0l0AGxDsFKUPcV9-F4xcNqB7uP0.
5m
google-site-verification=skf1tpJckO-Bb2Gkr0X9Um-ppusdywTv8deS0SjrgzQ.
5m
zscaler-verification-133327181-5272025-fwOyTy
5m
classapp.com.br. 300 IN TXT "MS=ms38226564." classapp.com.br. 300 IN TXT "anthropic-domain-verification-pq1hh0=H2d3fZxgJcejKniZ5Xen0NfSc" classapp.com.br. 300 IN TXT "google-site-verification=ASfGasKtybkQr6BzqmQO7iPDqAgcegGcWLTTBkDCaGw; facebook-domain-verification=ohc54qbg58nm8d2sw7hd8p2al8noni MS=ms38226564" classapp.com.br. 300 IN TXT "google-site-verification=PpbYLCOTVtM3diU9MsZZK3PAak1Smf5LHwt6DKbXJkc." classapp.com.br. 300 IN TXT "google-site-verification=jc2Xr11X8bQq_IwX8c0mXunPzNxGddRIlg_3OjC_hfw." classapp.com.br. 300 IN TXT "google-site-verification=lNe7DhS1sJAntrjZ0l0AGxDsFKUPcV9-F4xcNqB7uP0." classapp.com.br. 300 IN TXT "google-site-verification=skf1tpJckO-Bb2Gkr0X9Um-ppusdywTv8deS0SjrgzQ." classapp.com.br. 300 IN TXT "zscaler-verification-133327181-5272025-fwOyTy"
DNSSEC Public Keys
TTL
DNSKEY
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==
20m
DNSKEY
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
20m
classapp.com.br. 1200 IN DNSKEY 256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA== classapp.com.br. 1200 IN DNSKEY 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
Delegation Signer
TTL
DS
2371 13 2 9391638C48EF5DE25B818EE4E4C7EFE6D162B02267C2EA78D25E39930CFAC895
20m
classapp.com.br. 1200 IN DS 2371 13 2 9391638C48EF5DE25B818EE4E4C7EFE6D162B02267C2EA78D25E39930CFAC895
DNSSEC Next Secure
TTL
NSEC
.classapp.com.br ["TYPE65", "TYPE64", "TYPE61", "TYPE60", "TYPE59", "TYPE55", "TYPE53", "TYPE52", "DNSKEY", "NSEC", "RRSIG", "TYPE44", "TYPE37", "TYPE35", "SRV", "TYPE29", "AAAA", "TXT", "MX", "TYPE13", "SOA", "NS", "A", "CAA", "TYPE256"]
20m
classapp.com.br. 1200 IN NSEC .classapp.com.br ["TYPE65", "TYPE64", "TYPE61", "TYPE60", "TYPE59", "TYPE55", "TYPE53", "TYPE52", "DNSKEY", "NSEC", "RRSIG", "TYPE44", "TYPE37", "TYPE35", "SRV", "TYPE29", "AAAA", "TXT", "MX", "TYPE13", "SOA", "NS", "A", "CAA", "TYPE256"]