PowerShell Snippet: Clearing Cloudflare Cache with Cloudflare's API
Cloudflare provides a GUI to purge cache, but every action you can perform using the GUI, you can also do with Cloudflare's API. You could use the API to auto purge the cache whenever you update content in your CMS of choice, or purge the cache as part of your Continuous Delivery pipeline. Using PowerShell we'll interact with Cloudflare's API and purge their cache.
Setting up Cloudflare Full Universal SSL with an Azure App Services
Using Cloudflare's Universal SSL service, we can provide our website over a safe HTTPS connection. This post walks you through setting up the SSL encrypted connection from client to Cloudflare, to your Azure Web Application using the Full (strict) option and Cloudflare's origin certificates.
PowerShell Snippet: Crawling a sitemap
Here's a PowerShell function that you can use to validate that all pages in your sitemap return a HTTP Status code 200. You can also use it to warm up your website, or ensure your website caching is warm after a cold boot. I personally use it as part of my Continuous Delivery pipeline to warm up my site and Cloudflare's cache.
Web performance: prevent wasteful hidden image requests (display: none)
We often hide images using CSS with "display: none", but this doesn't actually prevent the browser from downloading these images. Using the HTML Picture element, we can serve different versions of an image depending on media queries. We can even use a data-img to prevent images from being downloaded at all and optimize our website speed.
Crawling through Umbraco with Robots
The robots.txt file’s main purpose is to tell robots (Google Bot, Bing Bot, etc.) what to index for their search engine, and also what not to. Usually you want most of your website crawled by Google, such as blog posts, product pages, etc., but most websites will have some pages/sections that shouldn’t be indexed or listed in search engines.