30
records
IPv6 Addresses
TTL
eduid.cz. 1200 IN AAAA 2001:718:FF05:202:0:0:0:243
Name Servers
TTL
eduid.cz. 1200 IN NS decsys.vsb.cz. eduid.cz. 1200 IN NS nsa.ces.net. eduid.cz. 1200 IN NS nsa.cesnet.cz. eduid.cz. 1200 IN NS nsa.ten.cz.
Mail Servers
TTL
MX
—
10
20m
MX
—
10
20m
eduid.cz. 1200 IN MX 10 ag2.cesnet.cz. eduid.cz. 1200 IN MX 10 ag1.cesnet.cz.
SOA Details
TTL
20m
SOA
Responsible
hostmaster.cesnet.cz
SOA
Serial
2020013862
SOA
Times
Refresh
8h
Retry
2h
Expire
21d
Minimum TTL
15m
eduid.cz. 1200 IN SOA nsa.cesnet.cz. hostmaster.cesnet.cz. 2020013862 28800 7200 1814400 900
Certificate Authority Authorization
TTL
CAA
—
20m
20m
CAA
—
0
issuewild
;
20m
eduid.cz. 1200 IN CAA 0 iodef "mailto:[email protected]" eduid.cz. 1200 IN CAA 0 issue "harica.gr" eduid.cz. 1200 IN CAA 0 issue "letsencrypt.org" eduid.cz. 1200 IN CAA 0 issuemail "harica.gr" eduid.cz. 1200 IN CAA 0 issuewild ";"
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
5m
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).
eduid.cz. 300 IN DMARC v=DMARC1; p=quarantine; rua=mailto:[email protected]
DKIM
TTL
No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | a |
|
||
| - Fail | all |
—
|
|
5m
eduid.cz. 300 IN TXT "v=spf1 include:cesnet.cz a:mdx.eduid.cz -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).
DNSSEC Public Keys
TTL
DNSKEY
257 3 13 uvapembzPGDjGfoRDnlmeALvyZ0vn8BIefqoEgGANTgUYWzC5tBp0YJZwzYDMWjyvElinE5Lc1EXzjaWVcAsSw==
20m
DNSKEY
256 3 13 opeletdsy80cB7X5mMoL4VT52XikBAp0AsjSEn6/NofVMT4k+QbA93tTfo46SdrFCQMe4fOGGq7krQVSgl4Dtg==
20m
eduid.cz. 1200 IN DNSKEY 257 3 13 uvapembzPGDjGfoRDnlmeALvyZ0vn8BIefqoEgGANTgUYWzC5tBp0YJZwzYDMWjyvElinE5Lc1EXzjaWVcAsSw== eduid.cz. 1200 IN DNSKEY 256 3 13 opeletdsy80cB7X5mMoL4VT52XikBAp0AsjSEn6/NofVMT4k+QbA93tTfo46SdrFCQMe4fOGGq7krQVSgl4Dtg==
Delegation Signer
TTL
DS
42902 13 2 F82F13D7CA750AD0429F5363A6D096F135B644248FE5EF6BDBDC8A4207D43C50
20m
eduid.cz. 1200 IN DS 42902 13 2 F82F13D7CA750AD0429F5363A6D096F135B644248FE5EF6BDBDC8A4207D43C50
DNSSEC Signatures
TTL
RRSIG
TXT 13 2 300 1787000996 1784403596 20358 eduid.cz 2Rlfl9h75bykaaTy/3rAFS4cqN86NQdQV/Mkuf2nRA1USGvzCR42ejVvTtYUc7GIlVzqONmL1QiFQYta3eGwNw==
5m
RRSIG
MX 13 2 3600 1787000996 1784403596 20358 eduid.cz ebSqY6YQhkkHETtuU8pUxscf+n9ysY54FVGzQmnt1Rm0iiW2kUKgPnpWEJUgQSbLYS5i6sYzXV/cNeKhOkaj1Q==
20m
RRSIG
SOA 13 2 3600 1787696258 1785098858 20358 eduid.cz ZW6qq9z860sRF3Vb/DFPfbf//4cMn/3vRroLeBsJOglqQwlxllMRjVX9SPhhv7AKWrmzKI7LlkTLRUH5ZQGMxA==
20m
RRSIG
NS 13 2 3600 1787000996 1784403596 20358 eduid.cz TPZfj63S/pzGpabhd5FyuIpI2143CYwfbAADPMekVawQodJgli9xpvhUjOGF8EZE31jVAdavRzf6RnmhLJlgCQ==
20m
RRSIG
A 13 2 3600 1787000996 1784403596 20358 eduid.cz CkoARPcWZ0lalja/bNk8/KjdVel4D7RyzDwo5GOnJT7kb2QnBMCEaW/b2dLc82d2O9PPLwKcc79KiC5BawXyWg==
20m
RRSIG
CAA 13 2 3600 1787000996 1784403596 20358 eduid.cz JKPIQ6A3fZ2EWRSGO6gPeDZ0meWWGYRkmp/sNyMtd1N+xaJ1jTbsv5/anEEMDW+CYw6c+d1DP9JO6ZWB1++oZg==
20m
RRSIG
TYPE60 13 2 0 1787568184 1784970784 42902 eduid.cz rsOpIAIZ/+EFHl7s3vvj9t2lhHoqDMHp+Zn36YdhKEI//V3fnswmQhGvi6g7TOrokpgUn0MQZR0ufi4wkG7Xvg==
10s
RRSIG
TYPE59 13 2 0 1787568184 1784970784 42902 eduid.cz cRMj90EWOnHq4fjyEG3g8QQ1LhV+QjNJEWGMhhgGdpN64QByzUqiWhYcWvWlpHIUU2JaHRVzbtWG+s5MU2j2Eg==
10s
RRSIG
TYPE51 13 2 900 1787000996 1784403596 20358 eduid.cz 7qg3FVuqZvEoXesG1g+Ho7SAm/QAnLugul50ZoknkNy+6DUHzQ1ebOHFcC4fVGlHEP99r/TTMHK14mkLvVS9LQ==
15m
RRSIG
DNSKEY 13 2 3600 1787696258 1785098858 42902 eduid.cz ik6Rt8d/5Y5z2mK5jcpC68kJAXlAVcgpJ3ybolwwe0YnKYKX6V6zUFQu6JZa6srKXkai3Lb4POlPlikZYJ/d+g==
20m
RRSIG
AAAA 13 2 3600 1787000996 1784403596 20358 eduid.cz AijdM2VQFTgdQnX1diFhY46DYNMxr2vYuEeWvGircaAvSlFE5J14HSLnkqFhE5F5++hSZugd7LCG5hf0g+E/4A==
20m
eduid.cz. 300 IN RRSIG TXT 13 2 300 1787000996 1784403596 20358 eduid.cz 2Rlfl9h75bykaaTy/3rAFS4cqN86NQdQV/Mkuf2nRA1USGvzCR42ejVvTtYUc7GIlVzqONmL1QiFQYta3eGwNw== eduid.cz. 1200 IN RRSIG MX 13 2 3600 1787000996 1784403596 20358 eduid.cz ebSqY6YQhkkHETtuU8pUxscf+n9ysY54FVGzQmnt1Rm0iiW2kUKgPnpWEJUgQSbLYS5i6sYzXV/cNeKhOkaj1Q== eduid.cz. 1200 IN RRSIG SOA 13 2 3600 1787696258 1785098858 20358 eduid.cz ZW6qq9z860sRF3Vb/DFPfbf//4cMn/3vRroLeBsJOglqQwlxllMRjVX9SPhhv7AKWrmzKI7LlkTLRUH5ZQGMxA== eduid.cz. 1200 IN RRSIG NS 13 2 3600 1787000996 1784403596 20358 eduid.cz TPZfj63S/pzGpabhd5FyuIpI2143CYwfbAADPMekVawQodJgli9xpvhUjOGF8EZE31jVAdavRzf6RnmhLJlgCQ== eduid.cz. 1200 IN RRSIG A 13 2 3600 1787000996 1784403596 20358 eduid.cz CkoARPcWZ0lalja/bNk8/KjdVel4D7RyzDwo5GOnJT7kb2QnBMCEaW/b2dLc82d2O9PPLwKcc79KiC5BawXyWg== eduid.cz. 1200 IN RRSIG CAA 13 2 3600 1787000996 1784403596 20358 eduid.cz JKPIQ6A3fZ2EWRSGO6gPeDZ0meWWGYRkmp/sNyMtd1N+xaJ1jTbsv5/anEEMDW+CYw6c+d1DP9JO6ZWB1++oZg== eduid.cz. 10 IN RRSIG TYPE60 13 2 0 1787568184 1784970784 42902 eduid.cz rsOpIAIZ/+EFHl7s3vvj9t2lhHoqDMHp+Zn36YdhKEI//V3fnswmQhGvi6g7TOrokpgUn0MQZR0ufi4wkG7Xvg== eduid.cz. 10 IN RRSIG TYPE59 13 2 0 1787568184 1784970784 42902 eduid.cz cRMj90EWOnHq4fjyEG3g8QQ1LhV+QjNJEWGMhhgGdpN64QByzUqiWhYcWvWlpHIUU2JaHRVzbtWG+s5MU2j2Eg== eduid.cz. 900 IN RRSIG TYPE51 13 2 900 1787000996 1784403596 20358 eduid.cz 7qg3FVuqZvEoXesG1g+Ho7SAm/QAnLugul50ZoknkNy+6DUHzQ1ebOHFcC4fVGlHEP99r/TTMHK14mkLvVS9LQ== eduid.cz. 1200 IN RRSIG DNSKEY 13 2 3600 1787696258 1785098858 42902 eduid.cz ik6Rt8d/5Y5z2mK5jcpC68kJAXlAVcgpJ3ybolwwe0YnKYKX6V6zUFQu6JZa6srKXkai3Lb4POlPlikZYJ/d+g== eduid.cz. 1200 IN RRSIG AAAA 13 2 3600 1787000996 1784403596 20358 eduid.cz AijdM2VQFTgdQnX1diFhY46DYNMxr2vYuEeWvGircaAvSlFE5J14HSLnkqFhE5F5++hSZugd7LCG5hf0g+E/4A==