Skip to content

cubdomaincubdomain

Analyse a domain

↑↓moveEnteropenEscclose

Tools Domains by date Extension Contact

Domain intelligence and free developer tools — WHOIS, DNS, SSL, SEO and newly registered domains, updated daily.

Popular toolsWHOIS Lookup DNS Lookup SSL Checker SEO Checker What is my IP All tools →

CubDomainAbout Contact Domains by date Blog Domain prices Registrars API for developers Our crawler Status (opens in a new tab)

ExtensionChrome (opens in a new tab)Firefox (opens in a new tab)Edge (opens in a new tab)Opera (opens in a new tab)Brave (opens in a new tab)

LegalPrivacy Policy Terms & Conditions Cookies Policy Disclaimer

© 2026 CubDomain.com · ABN 53 661 545 083. All rights reserved.

X (opens in a new tab)LinkedIn (opens in a new tab)YouTube (opens in a new tab)Reddit (opens in a new tab)Facebook (opens in a new tab)Pinterest (opens in a new tab)

opal.fr SSL Certificate – Valid, expires 13 Jan 2027 | CubDomain

Tools Domains by date Extension Contact

Log in Sign up free

Home
/
Domain reports
/
opal.fr
/
SSL certificate

O

opal.frSSL certificate & chain

Status: Valid
Expires in: 72 days
Issuer: Let's Encrypt
Chain: 4 certificates

Report Similar sites SSL certificate Technologies3 Same IP1 History Blocklists Subdomains Look-alikes Other extensions Reviews Blog

Chain1 · Site certificateopal.fr 2 · IntermediateYR1 3 · IntermediateRoot YR 4 · RootISRG Root X1

Advertisement

Certificate chain

1 · Site certificateValidopal.frIssued by YR1Expires 13 Jan 2027
2 · IntermediateValidYR1Issued by Root YRExpires 2 Sept 2028
3 · IntermediateValidRoot YRIssued by ISRG Root X1Expires 2 Sept 2032
4 · RootValidISRG Root X1Self-signed rootExpires 4 Jun 2035

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

1

Site certificate

opal.fr

Valid

Issued to

Common name (CN): opal.fr

Issued by

Common name (CN): YR1
Organisation (O): Let's Encrypt
Country (C): US

Validity

Valid from: 15 Oct 2026, 02:58 UTC
Valid until: 13 Jan 2027, 02:58 UTC
Days remaining: 72

Technical details

Serial number: 05:1C:44:B2:0C:1D:95:0E:62:AA:45:41:5B:E5:55:F9:D2:97
Signature algorithm: sha256RSA
Matches the domain: Yes

Names covered Subject Alternative Names · 2

opal.fr
www.opal.fr

2

Intermediate

YR1

Valid

Issued to

Common name (CN): YR1
Organisation (O): Let's Encrypt
Country (C): US

Issued by

Common name (CN): Root YR
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: 671

Technical details

Serial number: 00:A2:02:53:F1:5F:26:91:C0:5D:C1:CE:13:B9:BC:CA:4E
Signature algorithm: sha256RSA

3

Intermediate

Root YR

Valid

Issued to

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

Issued by

Common name (CN): ISRG Root X1
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: 2132

Technical details

Serial number: 00:F2:4B:6D:17:F9:D9:AD:7C:B1:C9:FE:A7:87:82:69:9F
Signature algorithm: sha256RSA

4

Root

ISRG Root X1

Valid

Issued to

Common name (CN): ISRG Root X1
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 Jun 2015, 11:04 UTC
Valid until: 4 Jun 2035, 11:04 UTC
Days remaining: 3136

Technical details

Serial number: 00:82:10:CF:B0:D2:40:E3:59:44:63:E0:BB:63:82:8B:00
Signature algorithm: sha256RSA