How the Vary HTTP Header Can Be Bad

Vary is а powerful HTTP header that plays a significant role in how your website cache is working. When this header is set correctly, it ensures that your site visitors see the right content, regardless of the caching applied. However, if this header is set up incorrectly, it can totally overrule even the benefits of the best caching system and cause resource overusage. In this blog post, I want to shed some light on how the Vary header affects your SiteGround hosted site and specifically our caching system, and to show you what's the recommended use of Vary header for your site.

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To crawl delay, or not to crawl delay?

Taming bots not to consume extensive amount of hosting resources has been an ongoing task for us. After the successful launch of the new Anti-bot AI system, which has already blоcked more than 1 billion hits only from malicious bots, we’d like to shed some more light on another measure in that area - the crawl-delay setting. Read on to find out what it is, why you might want to consider it and why we no longer apply a default crawl-delay setting on our servers.

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Our Top Customer Care Rep in May


Our Top Customer Care Rep of the Month Velizar can easily solve complex technical issues, but he can also masterfully play Mozart pieces on the violin, or tell you about War and Peace by Leo Tolstoy. He has a wide range of interests and an amazingly positive personality, which is probably why so many of the customers he serves are happy.

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Let’s Encrypt Interface New Options

Making SSL certificated accessible and used by everyone has been our ongoing effort for more than a year now. We were among the first to provide the free Let’s Encrypt certificates. Then, we automated the SSL issuing for all accounts. Later, we upgraded our WordPress plugin, SG Optimizer, to allow 1-click WordPress SSL configuration. Now we’re making the next step - our latest upgrade to the Let’s Encrypt tool in cPanel allows you to force all your domain traffic through HTTPS with a single click regardless of the application you are using. Read below to find out what are the new options in our Let’s Encrypt interface.

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How our new anti-bot AI prevents millions of brute-force attacks

For the last few days we have been gradually launching a new AI-based bot prevention system on our servers developed by our own DevOps specialists. We are already seeing amazing results from the operation of the system. Each hour it blocks between 500 000 and 2 million brute-force attempts across all our servers. Thus, we have prevented an unknown number of potential unauthorized logins, but what is even more important -- we have managed to save an enormous amount of server resources that can now be used for a meaningful and legitimate activity by our users.

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SG Site Scanner powered by Sucuri

Having a website regularly scanned for security issues, is something we have always highly recommended to our customers. Our site scanning service (known as HackAlert until recently) has always been among the bestsellers and is used by thousands of our customers to check their websites and inform them in case of a malware. Today we are happy to announce that we have introduced a number of improvements to this services. It is now called SG Site Scanner, it is powered by one of the most prominent web security experts - Sucuri.net, and it is simply awesome!

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Cloudflare HTTPS and WAF Update

Since we launched our integration with Cloudflare in 2012 we have seen thousands of our customers benefit from its CDN and the site security functionalities. Today we are happy to announce two improvements in the Cloudflare packages we provide. First, the SSL is now supported in the free plan of the service. Second, we have included a very cool security feature - the Cloudflare Web Application Firewall, in our Plus plan.

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Our Affiliate Program in 2016 – Founded on Product Quality and Trust


2016 was the most successful in the history of SiteGround. We kept growing in terms of clients and employees and we worked on many new projects that improved further the quality of our service. One of the key factors for our success is the relationship with our affiliate partners. During the past year we welcomed 63% more affiliates and witnessed a 60% increase in the number of the affiliate sales. We have distributed nearly $6 millions in commissions.

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