Read more about the article Technical Search Engine Optimization Crash Course
In this article we cover ideas for learning about Technical Search Engine Optimization (Technical SEO).

Technical Search Engine Optimization Crash Course

Technical SEO requires skills in subjects including performance engineering, software architecture, system administration for the Linux Operating System (OS), caching, testing, load testing, Content Delivery Networks (CDN), Content Management Systems (CMS) such as WordPress, programming languages such as PHP, web server configuration and administration for the Apache or NGINX web servers, and much more.

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How to Fix the og:image Open Graph Meta Tags are Missing Critical Issue (with pictures)

In this article we'll take a brief look at the Open Graph Protocol, the og:image meta tag, and we'll review how to identify that this value is missing and how to fix this issue. Finally, we'll take a look at the Facebook for Developers: Sharing Debugger tool, test several pages, and address an image size issue.

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