SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
askf5-com.df.gov.br
SSL/TLS Certificate
SSL/TLS Certificate for askf5-com.df.gov.br
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- api.contalegal.df.gov.br
- Valid from
- Mar 11, 2024
- Valid until
- Jun 9, 2024 (expired 785 days ago)
- Public key
- RSA 2048-bit
- Serial
- 037278CD159BD6ED5987415EA5548685B0E3
- SHA-256 fingerprint
- 02:5C:C7:37:9E:A4:D4:85:9A:2C:ED:F8:B8:AB:57:E0:0D:F7:4B:93:AE:5A:53:F9:51:A2:6D:E1:32:15:46:FE
- Chain
- R3 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by askf5-com.df.gov.br's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch askf5-com.df.gov.br 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, DNSSEC, CNAME 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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