DNS Report: firmy.cz

Generated: 2026-08-11T04:07:43-05:00

88/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
OKIPv6 (AAAA)10/101 IPv6 address(es) detected.
OKName server redundancy20/202 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
OKDNSSEC chain15/15DS and DNSKEY detected.
OKCAA policy5/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/202 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5557 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers16/354 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: firmy.cz
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/2 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
77.75.76.191
AAAA
2a02:598:2::191
CNAME
MX
20 bb4bdcba74d9f0f3.mx2.emailprofi.seznam.cz.
10 bb4bdcba74d9f0f3.mx1.emailprofi.seznam.cz.
TXT
"google-site-verification=ViVc6KWNXO3_7cy77wSDVVTv3PgKi7F1ziZ9nuOCMg4"
"v=spf1 include:spf.szn.cz ip4:178.251.187.28 ip6:2a00:1ed0:45::d3 ~all"
"google-site-verification=_rqmNTKCjKuRqIfPzJnNIXLGK7ra_0lXAFnv4Eg_h4E"
"facebook-domain-verification=pws60mi9w3wjkjosdl8jcifztkb4l9"
NS
ans.seznam.cz.
ams.seznam.cz.
SOA
ans.seznam.cz. hostmaster.seznam.cz. 1785974400 900 300 604800 300
CAA
0 iodef "mailto:abuse-caa@firma.seznam.cz"
0 issue "letsencrypt.org"
DS
7167 13 2 E5375568BE0A8D3B5AAE2B7CFE5B97871965D953367FC6EFD213E3E8 9FF209E1
DNSKEY
257 3 13 2nbcy7Yt1gjotOPHLhF/cK2TotCSk4T1cB01k/ZSYbtfPVZP8UhIecad /jFs/IOSqACTdvhY34ZwzZzy4WlNng==
256 3 13 KpPcbxXuAbJ1RMhXF/K6y5eY5OqafgukcsYRSoBFrEVvKzQ3XqsdQDVo tHD2bWrj0LD8rBrXBRoiIp4VeN8Arw==
RRSIG
TXT 13 2 300 20260820000000 20260730000000 38873 firmy.cz. e9DhD8LO15RuIeGwFXebDNB99v3+ELoyBKsYtoaUAVw/baovjO2uZIL+ eeLQ+mAcaNfQfXDDl++Ia5BxFLi4mg==
MX 13 2 300 20260820000000 20260730000000 38873 firmy.cz. qrlaWjJDVYM/6tRWBT9FEXx0HXBLJIkXLF0DxhEjpdT742DmR6zoZ6qv 2n2wHiHbWr2TQc2zRIwUUXCxtuefPw==
AAAA 13 2 3600 20260820000000 20260730000000 38873 firmy.cz. arpTOyFOk9D8yC0kMOWMqcImUZrCv2C+tQsxjzHFRLy3iYLoq3UPs4EO GxfD3COAoE0c29C+8NLmLOdwsVO/HA==
DS 13 2 3600 20260823054724 20260809041724 5166 cz. s2FQ56o4LxYBggsIIJvTITen9Y22Hq9AbPgFR5HBALb2aNZV/+fh4e2A grt3BySsRZ7pitvgll7DIRThx4Q2ig==
CAA 13 2 3600 20260820000000 20260730000000 38873 firmy.cz. YRCc5xKUCf9AXT9AeSbo2DyKEKG3/EAEcke1w4qWdyAAXEXvh7Pwra9I w801HfD7owd+xLnAWdPdtHuEqeEh/A==
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP