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 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. 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

szn.com.tw SSL Certificate – Expired, expires 30 Apr 2024 | CubDomain

Home
/
Domain reports
/
szn.com.tw
/
SSL certificate

S

szn.com.twSSL certificate & chain

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

Chain1 · Site certificateszn.com.tw 2 · IntermediateE1 3 · RootISRG Root X2

Advertisement

Certificate chain

1 · Site certificateExpiredszn.com.twIssued by E1Expires 30 Apr 2024
2 · IntermediateExpiredE1Issued by ISRG Root X2Expires 15 Sept 2025

3 · 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

szn.com.tw

Expired

Issued to

Common name (CN): szn.com.tw

Issued by

Common name (CN): E1
Organisation (O): Let's Encrypt
Country (C): US

Validity

Valid from: 31 Jan 2024, 04:35 UTC
Valid until: 30 Apr 2024, 05:35 UTC
Days remaining: Expired 901 days ago

Technical details

Serial number: 04:EE:2E:60:C7:07:F3:96:A3:C8:D3:85:EE:28:E5:4C:B5:70
Signature algorithm: —

2

Intermediate

E1

Expired

Issued to

Common name (CN): E1
Organisation (O): Let's Encrypt
Country (C): US

Issued by

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

Validity

Valid from: 3 Sept 2020, 17:00 UTC
Valid until: 15 Sept 2025, 09:00 UTC
Days remaining: Expired 398 days ago

Technical details

Serial number: 00:B3:BD:DF:F8:A7:84:5B:BC:E9:03:A0:41:35:B3:4A:45
Signature algorithm: —

3

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: 3 Sept 2020, 17:00 UTC
Valid until: 17 Sept 2040, 09:00 UTC
Days remaining: 5082

Technical details

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

Report Similar sites SSL certificate Technologies1 Same IP19 History Blocklists Subdomains Look-alikes Other extensions Reviews Blog