Welcome!

Linux Containers Authors: Zakia Bouachraoui, Yeshim Deniz, Elizabeth White, Liz McMillan, Pat Romanski

Related Topics: @DevOpsSummit, Linux Containers, Containers Expo Blog

@DevOpsSummit: Blog Feed Post

Third-Party Tags on #WebPerf | @DevOpsSummit @Catchpoint #APM #DevOps

Third-party tags, while providing value and necessary functionality, can lead to unexpected results

Impact of Third-Party Tags on Performance: Take II
By Dawn Parzych

Two years ago, we published an ebook on the True Impact of Third-party Tags. A lot can change in two years, especially when it comes to technology, so we felt it was time to revisit the sites we tested. In 2015, we analyzed sites across four verticals – US banking, ecommerce, news, and travel – to see what impact third-party tags have on page weight, response times, and the number of requests. We conducted the same analysis on these sites based on data from November 2016, during which over 600,000 test runs were analyzed.

If I said I had no assumptions going into the analysis, I would be lying. There are always assumptions or hypotheses involved in an analysis such as this. Here were a few of mine:

  • Average page sizes would  increase
  • Percentage of third party requests would increase
  • Response times would be the same or better

Now, let’s see whether I was right or wrong by exploring the results below.

Average Page Size

Given that the top 100 sites have seen their average page size increase by about 30% between March 2015 and November 2016, I expected to see similar increases across the sites we analyzed; however, the results surprised me.

downloadedbytes

Banking sites saw a massive increase nearly trebling in size; something didn’t make sense here. Looking at individual tests, I noticed that one banking site had an average page weight of over 10 MB during the time period, which would definitely bring the average up. After recalculating the averages without that outlier, the results were more in line with what I was expecting.

pageweightcomparison

 

Now, what jumped out was the drop in average page size for news sites, and then I realized The Financial Times was one of the sites we analyzed. The Financial Times has written about their performance studies and spoken about their culture of performance. Teams are empowered to say “no” to items that can lead to the site slowing down. This change took place in early 2016, influencing our comparison. The Financial Times was the lightest home page in the banking category, weighing in at 865K. The next closest page in size was 1.9MB, more than double the size.  Excluding The Financial Times from the analysis, the average size of the news sites also increased.

pageweight_noft

Percentage of Third-Party Requests

Sites are always looking for additional insights into user behavior and new features to enhance the user experience, so I was expecting the percentage of third-party requests to increase. While two industries saw increases in the percentage of third-party content, two experienced drops.

percentagerequest3rdparty

The biggest surprise didn’t come from the increases or decreases in percentages, but rather seeing that one site did not include any third-party content. Apple does not load any content on their home page from third parties. This was definitely unexpected when other sites have greater than 50% of their requests being delivered from third parties.

Page Load Time

Maybe because I spend so much time reading, thinking, and writing about web performance, I assume that pages should be getting faster. By now, everybody knows the negative consequences of slow performing pages and that users are expecting pages to load faster than ever, right? That’s why I wasn’t expecting the results we saw. Across the board, response times increased and, in some cases, the average webpage load time doubled.

pageloadtime

Parting Thoughts

After seeing the results, I wondered if using the month of November was not a good comparison due to the start of the holiday shopping season. Maybe sites were slightly slower then due to increased traffic. I went back and looked at the response times for ecommerce sites in October to compare; the average for October was 160 ms faster than November.

The two categories with the highest percentage of third-party content also have the slowest average page load times. Every DNS lookup, TCP connection, and request adds more time to the webpage load time. With studies regularly showing the negative impact slow page loads have on key business metrics, seeing response times jump so much in a short period of time was a shock.

Third-party tags, while providing value and necessary functionality, can lead to unexpected results.

The post Impact of Third-party Tags on Performance: Take II appeared first on Catchpoint's Blog.

More Stories By Mehdi Daoudi

Catchpoint radically transforms the way businesses manage, monitor, and test the performance of online applications. Truly understand and improve user experience with clear visibility into complex, distributed online systems.

Founded in 2008 by four DoubleClick / Google executives with a passion for speed, reliability and overall better online experiences, Catchpoint has now become the most innovative provider of web performance testing and monitoring solutions. We are a team with expertise in designing, building, operating, scaling and monitoring highly transactional Internet services used by thousands of companies and impacting the experience of millions of users. Catchpoint is funded by top-tier venture capital firm, Battery Ventures, which has invested in category leaders such as Akamai, Omniture (Adobe Systems), Optimizely, Tealium, BazaarVoice, Marketo and many more.

IoT & Smart Cities Stories
All in Mobile is a place where we continually maximize their impact by fostering understanding, empathy, insights, creativity and joy. They believe that a truly useful and desirable mobile app doesn't need the brightest idea or the most advanced technology. A great product begins with understanding people. It's easy to think that customers will love your app, but can you justify it? They make sure your final app is something that users truly want and need. The only way to do this is by ...
Digital Transformation and Disruption, Amazon Style - What You Can Learn. Chris Kocher is a co-founder of Grey Heron, a management and strategic marketing consulting firm. He has 25+ years in both strategic and hands-on operating experience helping executives and investors build revenues and shareholder value. He has consulted with over 130 companies on innovating with new business models, product strategies and monetization. Chris has held management positions at HP and Symantec in addition to ...
Dynatrace is an application performance management software company with products for the information technology departments and digital business owners of medium and large businesses. Building the Future of Monitoring with Artificial Intelligence. Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more busine...
DXWorldEXPO LLC announced today that Big Data Federation to Exhibit at the 22nd International CloudEXPO, colocated with DevOpsSUMMIT and DXWorldEXPO, November 12-13, 2018 in New York City. Big Data Federation, Inc. develops and applies artificial intelligence to predict financial and economic events that matter. The company uncovers patterns and precise drivers of performance and outcomes with the aid of machine-learning algorithms, big data, and fundamental analysis. Their products are deployed...
The challenges of aggregating data from consumer-oriented devices, such as wearable technologies and smart thermostats, are fairly well-understood. However, there are a new set of challenges for IoT devices that generate megabytes or gigabytes of data per second. Certainly, the infrastructure will have to change, as those volumes of data will likely overwhelm the available bandwidth for aggregating the data into a central repository. Ochandarena discusses a whole new way to think about your next...
CloudEXPO | DevOpsSUMMIT | DXWorldEXPO are the world's most influential, independent events where Cloud Computing was coined and where technology buyers and vendors meet to experience and discuss the big picture of Digital Transformation and all of the strategies, tactics, and tools they need to realize their goals. Sponsors of DXWorldEXPO | CloudEXPO benefit from unmatched branding, profile building and lead generation opportunities.
Cell networks have the advantage of long-range communications, reaching an estimated 90% of the world. But cell networks such as 2G, 3G and LTE consume lots of power and were designed for connecting people. They are not optimized for low- or battery-powered devices or for IoT applications with infrequently transmitted data. Cell IoT modules that support narrow-band IoT and 4G cell networks will enable cell connectivity, device management, and app enablement for low-power wide-area network IoT. B...
The hierarchical architecture that distributes "compute" within the network specially at the edge can enable new services by harnessing emerging technologies. But Edge-Compute comes at increased cost that needs to be managed and potentially augmented by creative architecture solutions as there will always a catching-up with the capacity demands. Processing power in smartphones has enhanced YoY and there is increasingly spare compute capacity that can be potentially pooled. Uber has successfully ...
SYS-CON Events announced today that CrowdReviews.com has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5–7, 2018, at the Javits Center in New York City, NY. CrowdReviews.com is a transparent online platform for determining which products and services are the best based on the opinion of the crowd. The crowd consists of Internet users that have experienced products and services first-hand and have an interest in letting other potential buye...
When talking IoT we often focus on the devices, the sensors, the hardware itself. The new smart appliances, the new smart or self-driving cars (which are amalgamations of many ‘things'). When we are looking at the world of IoT, we should take a step back, look at the big picture. What value are these devices providing. IoT is not about the devices, its about the data consumed and generated. The devices are tools, mechanisms, conduits. This paper discusses the considerations when dealing with the...