Click here to close now.

Welcome!

AJAX & REA Authors: Kevin Jackson, Carmen Gonzalez, Elizabeth White, Hovhannes Avoyan, XebiaLabs Blog

Related Topics: Java, AJAX & REA, Cloud Expo

Java: Article

The Super Bowl Effect on Website Performance

Synthetic monitoring of a website

Whether or not you are a fan of U.S. football - it was really hard to avoid this huge sports event on February 5. In addition to the actual game, it's the Super Bowl commercials that - besides being very expensive to air - usually drive a lot of load on the websites of the companies that run their ads. The question is whether the millions of dollars spent really drive consumers to these websites and make them do business with them.

As we won't get an answer from the top brands that advertised about the actual conversion rates we can look at the End User Experience and performance of their websites while these ads were aired. By analyzing the data that we can get through continuous synthetic monitoring combined with deep dive browser diagnostics, we'll be able to see whether their web application was actually able to handle the load and didn't leave too many of these users with a bad user experience.

Use Case: What Was the User Experience at One of the Top Brands on Super Bowl Day
In order to avoid any discussions on whether the numbers we present are good or bad and mean that this company did a good or terrible job, we present all this data without giving an actual name as the purpose of this exercise is to show how to perform this type of analysis.

Synthetic Monitoring of a Web Site
In order to monitor web site performance of a site we set up a Gomez Synthetic Monitor to be executed on a scheduled basis. The monitor not only monitored the performance of the initial home page but also walked through several main use-case scenarios on that page, e.g., searched for a product. These tests were also executed from multiple U.S. locations, using low- and high-bandwidth connections and also using both the Internet Explorer and Firefox browsers. In addition we captured individual performance sessions using dynaTrace Browser Diagnostics.

The following screenshot shows the response time of the home page of this website via our Last Mile platform via a Firefox browser in the days before the Super Bowl as well as during the Super Bowl. The average page load time was around 9 seconds with the exception of the time-frame during the Super Bowl - that's when it jumped up to 30 seconds:

Synthetic Monitoring shows peak during the Super Bowl of up to 30s to load the Homepage

Analyzing Page Load Time from Monitoring Data
There were two factors that drove this spike:

  1. Higher load on their application due to the commercial aired during the Super Bowl
  2. Additional content on their page that doubled the page size

Factor 1: Higher Load
That's of course intended and a success for their marketing campaign. What you want to make sure is that you can handle the additional expected load by using CDNs (Content Delivery Networks) to deliver that static content to your end users as well as provide additional resources on your web and application servers to handle the extra load. To be prepared for that it's highly recommended that you do some up-front large scale load-testing. For more information on that you can read my recent blog posts on To Load Test or Not to Load Test: That Is Not the Question.

Factor 2: Additional Content
The average size of the home page jumped from 776kb to 1.497kb - that's double the page size. The reason for this is additional images and content that was displayed on the home page when accessed during the Super Bowl. The Gomez Monitor as well as the dynaTrace Browser Diagnostics Sessions provides detailed resource analysis that immediately highlights the additional images, stylesheets and JavaScript files. The following shows some of the additional Super Bowl-related content including size and download time:

Additional content downloaded during the Super Bowl resulting in up to 3 times higher page load times

The additional content in this case may have been necessary to fulfill the company's marketing campaign. The question is whether the additional content could have been optimized not to download 40 additional resources with a total size of > 700kb.

Deep Dive Browser Diagnostics
Looking at the dynaTrace Browser Diagnostics Data we can observe several interesting aspects.

Observation 1: Load Impact of additional resources
We can see the actual impact of these additional resources that got downloaded during the time of the game. Two of these resources took a very long time and had a major impact on page load time. The background image was delivered by their own web server and was not put on a CDN, which results in more traffic on their web servers and less than optimal performance for end users who are far away from their data centers. Another interesting aspect was an additional Facebook Like button that took 600ms to download and execute.

dynaTrace Timeline View showing the impact of additional resources on the page load time

Observation 2: Page Transition Impact of CDN User Tracking Logic
Some tracking tools out there send their data in the onbeforeunload event handler. Modern browsers actually don't allow the onbeforeunload event handlers to take too long or send any data. The workaround for this is to put in an "artificial" JavaScript loop that waits for 750ms to ensure the browser sends the AJAX Request with the tracking data before the browser navigates to the next page. We can also see this behavior on this page:

JavaScript Tracing Code from a CDN Provider adding a 750ms loop to ensure tracing data gets send before navigating to the next page

Conclusion
When you are responsible for a website that is going to see high user volume for a marketing campaign you want to:

  1. Make sure the additional content for that marketing campaign is optimized, e.g., make sure this content is on CDNs and follow the Best Practices for Web Performance Optimization
  2. Make sure you test your application with the campaign-specific features under realistic load
  3. Analyze the impact of third-party tracking tools and other widgets you put on your page

More Stories By Andreas Grabner

Andreas Grabner has been helping companies improve their application performance for 15+ years. He is a regular contributor within Web Performance and DevOps communities and a prolific speaker at user groups and conferences around the world. Reach him at @grabnerandi

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@CloudExpo Stories
of cloud, colocation, managed services and disaster recovery solutions, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. TierPoint, LLC, is a leading national provider of information technology and data center services, including cloud, colocation, disaster recovery and managed IT services, with corporate headquarters in St. Louis, MO. TierPoint was formed through the strategic combination of some of t...
SYS-CON Events announced today that Column Technologies, a global technology solutions company, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. Established in 1998, Column Technologies is a leader in application performance and infrastructure management for commercial and federal markets. The company is headquartered in the United States, with a diverse and talented team of more than 350 employees around th...
Health care systems across the globe are under enormous strain, as facilities reach capacity and costs continue to rise. M2M and the Internet of Things have the potential to transform the industry through connected health solutions that can make care more efficient while reducing costs. In fact, Vodafone's annual M2M Barometer Report forecasts M2M applications rising to 57 percent in health care and life sciences by 2016. Lively is one of Vodafone's health care partners, whose solutions enable o...
SYS-CON Events announced today that Ciqada will exhibit at SYS-CON's @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Ciqada™ makes it easy to connect your products to the Internet. By integrating key components - hardware, servers, dashboards, and mobile apps - into an easy-to-use, configurable system, your products can quickly and securely join the internet of things. With remote monitoring, control, and alert messaging capability, you will mee...
SYS-CON Media announced today that @WebRTCSummit Blog, the largest WebRTC resource in the world, has been launched. @WebRTCSummit Blog offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. @WebRTCSummit Blog can be bookmarked ▸ Here @WebRTCSummit conference site can be bookmarked ▸ Here
SYS-CON Events announced today that GENBAND, a leading developer of real time communications software solutions, has been named “Silver Sponsor” of SYS-CON's WebRTC Summit, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. The GENBAND team will be on hand to demonstrate their newest product, Kandy. Kandy is a communications Platform-as-a-Service (PaaS) that enables companies to seamlessly integrate more human communications into their Web and mobile applicatio...
Public Cloud IaaS started it's life in the developer and startup communities and has grown rapidly to a $20B+ industry, but it still pales in comparison to how much is spent worldwide on IT: $3.6 trillion. In fact, there are 8.6 million data centers worldwide, the reality is many small and medium sized business have server closets and colocation footprints filled with servers and storage gear. While on-premise environment virtualization may have peaked at 75%, the Public Cloud has lagged in ado...
Dave will share his insights on how Internet of Things for Enterprises are transforming and making more productive and efficient operations and maintenance (O&M) procedures in the cleantech industry and beyond. Speaker Bio: Dave Landa is chief operating officer of Cybozu Corp (kintone US). Based in the San Francisco Bay Area, Dave has been on the forefront of the Cloud revolution driving strategic business development on the executive teams of multiple leading Software as a Services (SaaS) ap...
The best mobile applications are augmented by dedicated servers, the Internet and Cloud services. Mobile developers should focus on one thing: writing the next socially disruptive viral app. Thanks to the cloud, they can focus on the overall solution, not the underlying plumbing. From iOS to Android and Windows, developers can leverage cloud services to create a common cross-platform backend to persist user settings, app data, broadcast notifications, run jobs, etc. This session provide...
SYS-CON Events announced today that BroadSoft, the leading global provider of Unified Communications and Collaboration (UCC) services to operators worldwide, has been named “Gold Sponsor” of SYS-CON's WebRTC Summit, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. BroadSoft is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over their Internet Protocol networks. The Compa...
The 5th International DevOps Summit, co-located with 17th International Cloud Expo – being held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the...
DevOps tasked with driving success in the cloud need a solution to efficiently leverage multiple clouds while avoiding cloud lock-in. Flexiant today announces the commercial availability of Flexiant Concerto. With Flexiant Concerto, DevOps have cloud freedom to automate the build, deployment and operations of applications consistently across multiple clouds. Concerto is available through four disruptive pricing models aimed to deliver multi-cloud at a price point everyone can afford.
ProfitBricks has launched its new DevOps Central and REST API, along with support for three multi-cloud libraries and a Python SDK. This, combined with its already existing SOAP API and its new RESTful API, moves ProfitBricks into a position to better serve the DevOps community and provide the ability to automate cloud infrastructure in a multi-cloud world. Following this momentum, ProfitBricks has also introduced several libraries that enable developers to use their favorite language to code ...
What exactly is a cognitive application? In her session at 16th Cloud Expo, Ashley Hathaway, Product Manager at IBM Watson, will look at the services being offered by the IBM Watson Developer Cloud and what that means for developers and Big Data. She'll explore how IBM Watson and its partnerships will continue to grow and help define what it means to be a cognitive service, as well as take a look at the offerings on Bluemix. She will also check out how Watson and the Alchemy API team up to off...
The IoT Bootcamp is coming to Cloud Expo | @ThingsExpo on June 9-10 at the Javits Center in New York. Instructor. Registration is now available at http://iotbootcamp.sys-con.com/ Instructor Janakiram MSV previously taught the famously successful Multi-Cloud Bootcamp at Cloud Expo | @ThingsExpo in November in Santa Clara. Now he is expanding the focus to Janakiram is the founder and CTO of Get Cloud Ready Consulting, a niche Cloud Migration and Cloud Operations firm that recently got acquir...
The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, APM, APIs, Microservices, Security, Big Data, Internet of Things, DevOps and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding bu...
The world's leading Cloud event, Cloud Expo has launched Microservices Journal on the SYS-CON.com portal, featuring over 19,000 original articles, news stories, features, and blog entries. DevOps Journal is focused on this critical enterprise IT topic in the world of cloud computing. Microservices Journal offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. Follow new article posts on T...
SYS-CON Events announced today that Litmus Automation will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Litmus Automation’s vision is to provide a solution for companies that are in a rush to embrace the disruptive Internet of Things technology and leverage it for real business challenges. Litmus Automation simplifies the complexity of connected devices applications with Loop, a secure and scalable clou...
In 2015, 4.9 billion connected "things" will be in use. By 2020, Gartner forecasts this amount to be 25 billion, a 410 percent increase in just five years. How will businesses handle this rapid growth of data? Hadoop will continue to improve its technology to meet business demands, by enabling businesses to access/analyze data in real time, when and where they need it. Cloudera's Chief Technologist, Eli Collins, will discuss how Big Data is keeping up with today's data demands and how in t...
SYS-CON Media announced today that @ThingsExpo Blog launched with 7,788 original stories. @ThingsExpo Blog offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. @ThingsExpo Blog can be bookmarked. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago.