Salesforce Sandbox API, using .Net web service - Please use TLS 1.1 or higher
24158
UNSUPPORTED_CLIENT: TLS 1.0 has been disabled in this organization. Please use TLS 1.1 or higher when connecting to Salesforce using https
35470
SSLHandshakeException: no cipher suites in common
50109
Can you get an Extended Validation SSL certificate that applies to unlimited subdomains?
40713
How to use HTTPS in an ASP.Net Application
35355
How to make GET web service more secure
49990
how to create webhook for salesforce from external system ..?
103965
The correct way of implementing SSL on localhost
31226
What is Salesforce1 and why/when would I use it?
113283
How to use Let's Encrypt DNS challenge validation?
115711
I am about to automate the Web API testing, how to initiate
145717
Session_ID_Remove Issue in API callouts in Salesforce
7647
What is the best way to get security token of a API Only user?
87790
How can i migrate SSL from Tomcat to Apache HTTPD?
56016
What hash is concatenating with the data to be signed in TLS 1.3 CertificateVerify message?
80147
Setup IIS 7.5 with multiple website bindings and SSL?
139787
How to provide access to Salesforce REST API to external application without providing them Integration user credentials?
110151
Accessing AWS S3 via a REST API (Apex callout with a Named Credential)