23
records
IPv4 Addresses
TTL
kotlinlang.org. 60 IN A 3.171.76.107 kotlinlang.org. 60 IN A 3.171.76.117 kotlinlang.org. 60 IN A 3.171.76.61 kotlinlang.org. 60 IN A 3.171.76.91
Name Servers
TTL
20m
20m
20m
kotlinlang.org. 1200 IN NS ns-1287.awsdns-32.org. kotlinlang.org. 1200 IN NS ns-163.awsdns-20.com. kotlinlang.org. 1200 IN NS ns-1638.awsdns-12.co.uk. kotlinlang.org. 1200 IN NS ns-953.awsdns-55.net.
Mail Servers
TTL
5m
5m
5m
5m
5m
kotlinlang.org. 300 IN MX 1 aspmx.l.google.com. kotlinlang.org. 300 IN MX 5 alt2.aspmx.l.google.com. kotlinlang.org. 300 IN MX 5 alt1.aspmx.l.google.com. kotlinlang.org. 300 IN MX 10 alt3.aspmx.l.google.com. kotlinlang.org. 300 IN MX 10 alt4.aspmx.l.google.com.
SOA Details
TTL
15m
SOA
Responsible
awsdns-hostmaster.amazon.com
SOA
Serial
2019052201
SOA
Times
Refresh
2h
Retry
15m
Expire
23368d
Minimum TTL
1d
kotlinlang.org. 900 IN SOA ns-1638.awsdns-12.co.uk. awsdns-hostmaster.amazon.com. 2019052201 7200 900 2019072901 86400
Certificate Authority Authorization
TTL
CAA
—
20m
20m
20m
CAA
—
0
issuewild
;
20m
kotlinlang.org. 1200 IN CAA 0 iodef "mailto:[email protected]" kotlinlang.org. 1200 IN CAA 0 issue "amazon.com" kotlinlang.org. 1200 IN CAA 0 issue "letsencrypt.org" kotlinlang.org. 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
20m
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
No aggregate report URIs (RUA).
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
kotlinlang.org. 1200 IN DMARC v=DMARC1; p=reject; adkim=s; aspf=s;
DKIM
TTL
DKIM
Selector
google
v=DKIM1
k=rsa
5m
Public Key
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCvCB6RR8mwRD42m0Hd...
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCvCB6RR8mwRD42m0Hdg07a4NJrWuVF3tcyo+sCeC27QO1VMiACu14JUzu6zDP6TK9HroceQrZgL5sF0XyLc56c2ShgODraDQBc2g0N9XVUjbruSPdVJb98zxaJ2JasFtL3mELxkUOzEuRC2ujA4BwUnsUl2lnYVJ3wuM8LoZM2PQIDAQAB
kotlinlang.org. 300 IN DKIM v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCvCB6RR8mwRD42m0Hdg07a4NJrWuVF3tcyo+sCeC27QO1VMiACu14JUzu6zDP6TK9HroceQrZgL5sF0XyLc56c2ShgODraDQBc2g0N9XVUjbruSPdVJb98zxaJ2JasFtL3mELxkUOzEuRC2ujA4BwUnsUl2lnYVJ3wuM8LoZM2PQIDAQAB
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | a |
|
||
| - Fail | all |
—
|
|
5m
kotlinlang.org. 300 IN TXT "v=spf1 include:_spf.google.com a:mkto-mailer.jetbrains.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
facebook-domain-verification=fz49z7zr0ycqj7f9qvli45x3wqzfrh
5m
google-site-verification=Kldj7OgchCyGYVHwynlh6tOmYdmPHPVno2VxUNeW0TI
5m
kotlinlang.org. 300 IN TXT "facebook-domain-verification=fz49z7zr0ycqj7f9qvli45x3wqzfrh" kotlinlang.org. 300 IN TXT "google-site-verification=Kldj7OgchCyGYVHwynlh6tOmYdmPHPVno2VxUNeW0TI"