SSL/TLS Certificate Knowledgebase

Knowledge hub of SSL Guides, Manuals, and Resources

Certera.com Knowledge base is a hub of different online resources, helping newbies and professionals understand digital certificates thoroughly. Whether you only want to clear the basics, understand the exact definition, or want to know the purchase, installation, renewal, and management procedure, we provide them all in a single place. Certera got an accurate answer/solution directly from industry experts for every certificate query.

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How to Verify the Integrity of an SSL/TLS Certificate and Private Key Pair?

Introduction It is good practice to protect the SSL/TLS certificate and the associated private key as bad actors could cause significant harm if they were to gain unauthorized access to either of them. This process is done by ensuring that the certificate used within your application corresponds with the private…
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How to Enable HTTP/2 on IIS?

Introduction HTTP/2 is the newest version of HTTP, and it provides substantial enhancements in terms of performance over the prior version. If you have a website that resides on IIS, you can readily activate HTTP/2, which has the potential to provide faster pages, decreased Latency, and overall better user experience.…
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How to Enable HTTP/2 on Nginx?

In the constantly developing world of web technologies, HTTP/2 can be considered as a constant evolution with regard to HTTP/1. 1. HTTP/2 offers features like multiplexing, header compression, and server push that can make a real difference in the speed and optimization of your website. However, the implementation of HTTP/2…
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How to Display your Logo in the Inbox with Apple Branded Mail?

What is Apple Branded Mail? Apple Branded Mail was launched as part of Apple’s Apple Business Connect (ABC) platform to empower businesses to optimize their email marketing efforts. Companies will now be able to display their logo next to their emails in Apple Mail, thus giving emails a visual cue…
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How to Install SSL Certificates on VM Access Proxies?

Introduction As the employment of remote work and cloud business solutions is rapidly growing in the present digital environment, maintaining the security of VM access is highly crucial. The facilities of VM Access Proxies give users an opportune method to access their VMs through the internet but not directly. However,…
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How to Use Google Cloud KMS with Sectigo Code Signing Certificates?

Code signing is an essential method of ensuring software authenticity and trust. By using a secure Cloud HSM, such as Google Cloud KMS, the risk of private key exposure is non-existent. This article will guide you in using Google Cloud Key Management Service (KMS) to issue and maintain a Sectigo…
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How to Install SSL Certificate on Outlook Web Access (OWA)?

Introduction Modern communication is unimaginable without email correspondence, which is actively used in people’s everyday lives. Outlook Web Access (OWA) is a popular method or interface used by people to securely access their Microsoft Exchange e-mail accounts through any web browser. Nevertheless, sending restricted content through the internet connection without…
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How to Resolve SEC_ERROR_REUSED_ISSUER_AND_SERIAL?

What does SEC ERROR REUSED ISSUER AND SERIAL mean in Firefox? SEC_ERROR_REUSED_ISSUER_AND_SERIAL is a specific error in Mozilla Firefox that indicates a problem with the SSL/TLS certificate being presented by a website. This error occurs when Firefox detects a reused issuer-serial number combination, which is not allowed by the SSL/TLS…
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How to Fix ERR_CACHE_MISS Error in Chrome?

What is ERR_CACHE_MISS Error? The ERR_CACHE_MISS is a standard notice in Google Chrome, although the browser has some problems with its cache system. The error message happens when any web page demands the browser to re-enter some data or reload the data on view. In most cases, though, it occurs…
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How to Fix Mixed Content Warnings on HTTPS Website?

In the current digital environment, keeping your website secure is essential for both protecting user information and upholding your company’s reputable standing. The SSL mixed content error is a prevalent issue that might compromise its security. This error happens when resources loaded via HTTP are included in a website that…