SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sound-wave.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for sound-wave.co.kr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sound-wave.co.kr
- Valid from
- Oct 25, 2026
- Valid until
- Jan 23, 2027 (74 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06D6EC83CE7A96494A463911F627DEFFEECA
- SHA-256 fingerprint
- 4C:02:83:30:3F:D8:5F:24:96:C0:AA:30:81:4B:C8:73:26:77:43:E7:87:DB:75:EB:EB:30:EC:FB:31:8F:A2:F2
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 30, 2026.
Never get surprised by sound-wave.co.kr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sound-wave.co.kr continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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