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certificatechain.io: an online tool to download intermediate ssl certificates

When installing an SSL certificate on your server you should install all intermediate certificates as well. If you fail to do so, some browsers will reported “untrusted” warnings for your site like this one.


Searching and downloading those intermediate certificates can be a hassle.

Today my colleagues at Spatie and I launched certificatechain.io. This online tool helps you download all intermediate certificates. Just paste or upload your certificate and you’ll get a file containing the entire trust chain that you can install on your server.

The site is built with Laravel 5 and uses the SSL certificate chain resolver we made last month.

Freek Van der Herten is a partner and developer at Spatie, an Antwerp based company that specializes in creating web apps with Laravel. After hours he writes about modern PHP and Laravel on this blog. When not coding he’s probably rehearsing with his kraut rock band.