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opaa.app SSL Certificate – Valid, expires 8 Jan 2027 | CubDomain

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opaa.app
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SSL certificate

O

opaa.appSSL certificate & chain

Status: Valid
Expires in: 67 days
Issuer: Let's Encrypt
Chain: 4 certificates

Chain1 · Site certificateopaa.app 2 · IntermediateYE2 3 · IntermediateRoot YE 4 · RootISRG Root X2

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Certificate chain

1 · Site certificateValidopaa.appIssued by YE2Expires 8 Jan 2027
2 · IntermediateValidYE2

Issued by Root YE

Expires 2 Sept 2028

→3 · IntermediateValidRoot YEIssued by ISRG Root X2Expires 2 Sept 2032

→4 · RootValidISRG Root X2Self-signed rootExpires 17 Sept 2040

Each certificate is shown in full below, from the site's own to the root.

1

Site certificate

opaa.app

Valid

Issued to

Common name (CN): opaa.app

Issued by

Common name (CN): YE2
Organisation (O): Let's Encrypt
Country (C): US

Validity

Valid from: 10 Oct 2026, 09:48 UTC
Valid until: 8 Jan 2027, 09:48 UTC
Days remaining: 67

Technical details

Serial number: 05:1E:11:20:BF:81:10:EB:3C:36:D4:9C:8C:CF:8C:48:7D:F9
Signature algorithm: sha384ECDSA
Matches the domain: Yes

Names covered Subject Alternative Names · 2

opaa.app
www.opaa.app

2

Intermediate

YE2

Valid

Issued to

Common name (CN): YE2
Organisation (O): Let's Encrypt
Country (C): US

Issued by

Common name (CN): Root YE
Organisation (O): ISRG
Country (C): US

Validity

Valid from: 3 Sept 2025, 00:00 UTC
Valid until: 2 Sept 2028, 23:59 UTC
Days remaining: 670

Technical details

Serial number: 4D:F3:B1:5D:D6:C0:78:4C:50:7C:D3:7B:58:E6:F1:15
Signature algorithm: sha384ECDSA

3

Intermediate

Root YE

Valid

Issued to

Common name (CN): Root YE
Organisation (O): ISRG
Country (C): US

Issued by

Common name (CN): ISRG Root X2
Organisation (O): Internet Security Research Group
Country (C): US

Validity

Valid from: 13 May 2026, 00:00 UTC
Valid until: 2 Sept 2032, 23:59 UTC
Days remaining: 2131

Technical details

Serial number: 00:87:21:65:FC:34:B6:E5:FB:A8:AD:D5:B3:70:5F:B5:3A
Signature algorithm: sha384ECDSA

4

Root

ISRG Root X2

Valid

Issued to

Common name (CN): ISRG Root X2
Organisation (O): Internet Security Research Group
Country (C): US

Issued by

Common name (CN): Self-signed
Organisation (O): Internet Security Research Group
Country (C): US

Validity

Valid from: 4 Sept 2020, 00:00 UTC
Valid until: 17 Sept 2040, 16:00 UTC
Days remaining: 5068

Technical details

Serial number: 41:D2:9D:D1:72:EA:EE:A7:80:C1:2C:6C:E9:2F:87:52
Signature algorithm: sha384ECDSA

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