How to Change a SharePoint Web Application from HTTP to HTTPS?
Requirement: Enable HTTPS encryption in SharePoint Web Application using SSL certificate.
How to Configure HTTPS for SharePoint 2016 web applications?
Enabling HTTPS encryption ensures that the communications between users and the SharePoint web site remain secure. This article assumes you have generated CSR and imported the SSL certificate to the IIS. If you need any assistance on these steps refer my another article: configuring SSL Certificates in SharePoint - Step by Step
To configure SharePoint 2013 /SharePoint 2016 for HTTPS, follow these steps:
Step 1: Add HTTPS Binding for the SharePoint Web Application
In SharePoint 2013, to change web application to HTTPS you have to modify the default AAM to include the new HTTPS URL. Add IIS binding to your SharePoint web application as below:
Step 2: Configure Alternate Access Mapping
As a next step, You have to modify the default AAM to include the new HTTPS URL. E.g. from http://intranet.crescent.com to the https://intranet.crescent.com.

To secure SharePoint 2013 or SharePoint 2016 Central Administration site with HTTPS, refer this article: Secure SharePoint 2016 Central Admin from HTTP to HTTPS using SSL Certificate
How to Configure HTTPS for SharePoint 2016 web applications?
Enabling HTTPS encryption ensures that the communications between users and the SharePoint web site remain secure. This article assumes you have generated CSR and imported the SSL certificate to the IIS. If you need any assistance on these steps refer my another article: configuring SSL Certificates in SharePoint - Step by Step
To configure SharePoint 2013 /SharePoint 2016 for HTTPS, follow these steps:
- Add HTTPS to web application's IIS binding
- Configure Alternate Access Mapping for the SharePoint Web application.
Step 1: Add HTTPS Binding for the SharePoint Web Application
In SharePoint 2013, to change web application to HTTPS you have to modify the default AAM to include the new HTTPS URL. Add IIS binding to your SharePoint web application as below:
- Open IIS Manager (Start >> Run >> Type "InetMgr")
- Expand Sites and Select your target web application from the right tree navigation >> Click on "Bindings…" link from the right hand panel.
- On the Bindings dialog, click on Add…
- In the Add Site Binding dialog, select HTTPS from the Type Drop down, leave the IP address as All Unassigned, the Port should say
443. Enter the Host name as intranet.crescent.com, Select your respective SSL certificate
you already imported. Click OK.
Step 2: Configure Alternate Access Mapping
As a next step, You have to modify the default AAM to include the new HTTPS URL. E.g. from http://intranet.crescent.com to the https://intranet.crescent.com.
- Go to: SharePoint 2016 Central Administration >> Click On Application Management
- Click on "Configure alternate access mappings"
- Click on "Edit Public URLs" >> Pick your SharePoint web application >> Enter the HTTPs URL in any of the Zone like "Intranet"

To secure SharePoint 2013 or SharePoint 2016 Central Administration site with HTTPS, refer this article: Secure SharePoint 2016 Central Admin from HTTP to HTTPS using SSL Certificate
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