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)

Tools Domains by date Extension Contact

Log in Sign up free

aicompanion.dev SSL Certificate – Expired, expires 20 Jul 2025 | CubDomain

Home
/
Domain reports
/
aicompanion.dev
/
SSL certificate

A

aicompanion.devSSL certificate & chain

Status: Expired
Expires in: Expired
Issuer: Let's Encrypt
Chain: 3 certificates

Chain1 · Site certificate*.vercel.app 2 · IntermediateR11 3 · RootISRG Root X1

Advertisement

Certificate chain

1 · Site certificateExpired*.vercel.appIssued by R11Expires 20 Jul 2025
2 · IntermediateValidR11Issued by ISRG Root X1Expires 12 Mar 2027

→

3 · 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

*.vercel.app

Expired

Issued to

Common name (CN): *.vercel.app

Issued by

Common name (CN): R11
Organisation (O): Let's Encrypt
Country (C): US

Validity

Valid from: 21 Apr 2025, 12:55 UTC
Valid until: 20 Jul 2025, 12:55 UTC
Days remaining: Expired 466 days ago

Technical details

Serial number: 06:90:33:9A:2F:C4:2A:07:86:8C:44:D4:61:0E:7C:49:7B:3D
Signature algorithm: —

2

Intermediate

R11

Valid

Issued to

Common name (CN): R11
Organisation (O): Let's Encrypt
Country (C): US

Issued by

Common name (CN): ISRG Root X1
Organisation (O): Internet Security Research Group
Country (C): US

Validity

Valid from: 12 Mar 2024, 17:00 UTC
Valid until: 12 Mar 2027, 15:59 UTC
Days remaining: 133

Technical details

Serial number: 00:8A:7D:3E:13:D6:2F:30:EF:23:86:BD:29:07:6B:34:F8
Signature algorithm: —

3

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, 04:04 UTC
Valid until: 4 Jun 2035, 04:04 UTC
Days remaining: 3138

Technical details

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

Report Similar sites SSL certificate Same IP15 History Blocklists Subdomains Look-alikes Other extensions Reviews Blog