SSL Checker and Diagnostics Tool

Is this site running ssl and does it have the ssl certificate installed correctly?

Results for: www.wikipedia.org

>> click here for dns information about wikipedia.org

>> click here to be reminded of ssl certificate expiration for wikipedia.org

Use the SSL Checker Tool to find out details about a site's ssl certificate. Webmasters can use this tool to assist in troubleshooting ssl installation. Simply enter a url in the text box and click the 'lookup' button to get detail information about a site's ssl certificate.

website, domain, or url

Valid Domain Name IP Resolves To 208.80.154.225

SSL Certificate

Common Name : *.wikipedia.org
Subject Alternative Names : *.wikipedia.org, wikipedia.org, m.wikipedia.org, *.m.wikipedia.org, wikibooks.org, m.wikibooks.org, *.wikibooks.org, *.m.wikibooks.org, wikidata.org, m.wikidata.org, *.wikidata.org, *.m.wikidata.org, wikimedia.org, m.wikimedia.org, *.wikimedia.org, *.m.wikimedia.org, wikimediafoundation.org, m.wikimediafoundation.org, *.wikimediafoundation.org, *.m.wikimediafoundation.org, wikinews.org, m.wikinews.org, *.wikinews.org, *.m.wikinews.org, wikiquote.org, m.wikiquote.org, *.wikiquote.org, *.m.wikiquote.org, wikisource.org, m.wikisource.org, *.wikisource.org, *.m.wikisource.org, wikiversity.org, m.wikiversity.org, *.wikiversity.org, *.m.wikiversity.org, wikivoyage.org, m.wikivoyage.org, *.wikivoyage.org, *.m.wikivoyage.org, wiktionary.org, m.wiktionary.org, *.wiktionary.org, *.m.wiktionary.org, mediawiki.org, *.mediawiki.org, m.mediawiki.org, *.m.mediawiki.org
Issuer Name : DigiCert High Assurance CA-3
Serial Number : 07:24:ee:a9:7c:55:f2:57:5e:28:8b:a4:cc:f2:0e:8e
SHA1 Thumbprint : DA:AA:A4:9B:AD:0C:1F:A3:29:71:D8:CC:62:BA:72:D1:A4:DB:94:9F
Key Length : 2048 bit
Signature Algorithm : sha1WithRSAEncryption
Secure Renegotiation: Supported

This certificate does not use a vulnerable Debian key (this is good)

Correct : Certificate date is valid, valid from Oct 22 2012 and it expires Jan 20 2016 (973 days from today)

Correct : Certificate Name matches hostname www.wikipedia.org


Subject : *.wikipedia.org
Valid from Oct 22 2012 to Jan 20 2016
Issuer Name : DigiCert High Assurance CA-3



Subject : DigiCert High Assurance CA-3
Valid from Apr 2 2008 to Apr 3 2022
Issuer Name : DigiCert High Assurance EV Root CA

SSL Certificate is correctly installed
Congratulations! This certificate is correctly installed.