SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1-space.app
SSL/TLS Certificate
SSL/TLS Certificate for 1-space.app
Valid- Issued by (CA)
- Google Trust Services
- Subject
- 1-space.app
- Valid from
- Oct 27, 2026
- Valid until
- Jan 25, 2027 (71 days remaining)
- Public key
- EC 256-bit
- Serial
- F06DDE9FD04C6ECD0E438519CB12444B
- SHA-256 fingerprint
- 9E:D5:B4:C4:21:5C:88:51:89:E1:8A:9F:77:7B:3E:D0:CA:6D:D0:6D:5A:DF:22:05:89:6A:9E:D8:22:BA:69:AC
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by 1-space.app's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1-space.app 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.