Online retailers depend heavily on the holiday season for a healthy bottom line.

It’s the busiest time of the year in many retail industries, and there’s a substantial uptick in customers looking to spend money. The objective is to seize that spike in potential customers while it’s there. The National Retail Federation notes that online shoppers are expected to spend $105 billion during the 2015 holiday season. The following four tips can help online retailers get the most out of the holiday season traffic boom.

If you want to learn how your website can scale to meet the millions of online consumers this year, watch our webinar Best Practices for Successful Holiday Load Testing.

1) Check your Infrastructure

Do not become a casualty of your own success: Make sure your website infrastructure can handle all the extra holiday visitors. Inadequate hosting capabilities can cause your site to go down when there are too many people browsing your site, leading customers to other websites to buy what you’re selling. Professional load testing services are an excellent option to make sure your sites will stay online with the increased traffic flow on both web and mobile platforms.

According to American Express, Cyber Monday sees a 170 percent increase in web traffic, while Black Friday sees a 114 percent uptick when compared to the average business day. The second and third Mondays in December and the second Tuesday in December round out the season’s most heavily trafficked days. Your site infrastructure needs to have enough overhead to handle at least a 170 percent increase in web traffic over the average.

2) Mobile First Mentality

In 2014, 60 percent of shoppers were using mobile devices to browse products during the holiday season. A comScore study found that 60 percent of all web traffic comes from mobile devices, and an upward trend is projected. It’s common for websites to neglect the mobile in favor of the desktop website–so a retailer can gain a substantial competitive advantage by offering a user-friendly, fast mobile site. Tweaking a mobile website can be a substantial undertaking, so it’s something to look at far in advance of the holiday season. Responsive web design, which generates the content display based on the screen size of the device, can streamline the web development process, making both the desktop and mobile websites functionally identical.

3) Cut download times

Your site doesn’t shine in the holiday season simply by staying online. It needs to be able to serve content to an increased number of visitors without sacrificing speed. According to KissMetrics, the typical website visitor will wait only 6 to 10 seconds for a web page to load before abandoning it. The longer your page takes to load, the more likely you are to lose visitors. Retailers can shine during the holiday season by ensuring their pages load as quickly as possible. Making sure the online graphics use compressed JPG images, reducing the number of ads displayed on the page, and removing unnecessary code are all effective ways to decrease load times.

4) Ad Retargeting

Ad retargeting is a practice that determines the placement of advertisements on websites based on a visitor’s browsing history. This offers retailers a huge opportunity to bring back customers who were looking at a product, but didn’t actually purchase it, to complete the sale. Generally speaking, only two percent of visitors actually buy something from a website on their first visit. The practice helps target potential customers that have already established an interest in what you’re selling as opposed to using other metrics like visiting a specific site or living in a specific area. Consider purchasing retargeted ads through a service like Facebook, opposed to traditional advertising, to get the most out of your promotions budget.

If you want to learn how your website can scale to meet the millions of online consumers this year, watch our webinar Best Practices for Successful Holiday Load Testing.