section.io Website Performance and Security Blog

Hello from Aaron



I am extremely excited to join the section.io team in its mission to empower companies to deliver performant and scalable web content. As a former middle school math teacher, I understand what it’s like to fight with slow and unresponsive technology in a hectic workplace setting, and I look forward to partnering with section.io to create a streamlined, painless technological experience for your customers. If technology is not making our lives easier, less stressful, and more productive, then it is not doing its job.

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6 Quick Fixes to Secure Your Website

website security

Website security is a hot topic these days, with a new hack of a major institution making it in the headlines every few weeks. You know security is important, and you want to protect your site, but what measures should you take to keep your site secure? The truth is website security will be slightly different for every site. Some large ecommerce sites may need an internal security team in place to juggle the various security tools being utilized, while smaller to mid-size sites can manage without a dedicated security team.

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How to Measure Varnish Cache Performance

varnish cache tutorial

So you’ve installed Varnish Cache, now what? How can you tell whether or not it gave you the performance improvement you expected? You’d be surprised how many people get Varnish up and running and end up flying blind. Without proper logs and metrics you have few ways of knowing if Varnish is actually doing what you think and giving you the performance benefits you are looking for. In addition, Varnish often needs to be tuned after the initial setup to ensure that new items are properly cached and you are accounting for the behaviors of your specific users in your cache setup.

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How to Install Varnish Cache

varnish cache tutorial

Varnish Cache has quickly grown to be a popular reverse proxy software for accelerating HTTP requests and caching static and dynamic content. It’s an incredibly powerful way to speed up websites, increase scalability, and reduce server costs. Getting started, however, can be a bit of a headache. Before you dive into the fundamentals of VCL let’s take a quick look at everything you need to know about installing Varnish Cache.

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Debugging Varnish VCL



Varnish Cache’s Configuration Language (VCL) can be very approachable to get started with basic caching behaviour for your website. However, once you start to leverage the power of VCL to achieve the best possible performance for your site, you can find yourself in a situation where some HTTP requests don’t appear to be behaving how you expect. Varnish has some great tools to help you troubleshoot.

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Varnish 5.2 Already Available on section.io



Varnish Cache released their latest 5.2 version late last week and it is already available on section.io’s globally distributed Application Edge.

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Announcing Virtual Waiting Room

waiting room

section.io is pleased to announce another feature to help websites stay online when extreme traffic peaks arrive. A Virtual Waiting Room can ensure that your website stays up and serving customers when an extreme traffic event would otherwise have caused a complete outage.

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Early TLS deprecation



Since before PCI DSS 3.2 was published, section.io has provided delivery infrastructure with early TLS protocol versions disabled to allow customers to adopt the PCI requirements ahead of the June 2018 deadline. For many other customers though, disabling early TLS would have prevented too many visitors from being able to access, or complete transactions, on their websites.

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Tips to Make Sure Your DNS Registration Doesn't Expire

ajax calls

During my time at section.io I have seen the websites of our customers and our partners go offline due to a seemingly innocuous administration error: failing to renew their domain name registration on time. This issue was recently brought to the forefront recently when the popular marketing tool Marketo failed to renew their domain name, and were shut out of their system for several hours.

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What is An AJAX Call?

ajax calls

AJAX calls, which stand for Asynchronous JavaScript And XML, are becoming more popular as web applications look to bring in personalized items dynamically. AJAX calls are one method to load personalized content separately from the rest of the HTML document, which allows for the full HTML document to be cached, improving back end load time.

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