HeadSpin Proposes Speed Optimizations as Crafted Pick for


Overview and Methodology For Our Analysis




iPhone 8 / Verizon / Miami

Products Used:

HeadSpin Connected Intelligence Platform


  • Review multiple 3rd party SDKs that cause slowdown in launch time
  • Ensure that immediate content is loaded first before future content.
  • Optimize connection reuse
  • HeadSpin analyzed the mobile web experience on Safari browser on iOS on iPhone 8 in Miami, on the Verizon network.
  • NO SDK, code change or instrumentation was needed to run the remote performance sessions.
  • HeadSpin’s AI engine sifted through network traffic, client-side metrics, and videos of the test execution to find areas of poor user experience and performance bottlenecks.
  • Recommendations were provided for every issue that was surfaced.

Insights and Recommendations

HeadSpin’s proprietary AI technology analyzes and prioritizes the core issues impacting critical user journeys. Using computer vision techniques to quantify blank screens, time to interact, loading time, loading or buffering animations, and content quality, our AI models can automatically diagnose server-side issues whether they arise from infrastructure deployment issues, poor performance, or API errors. For a custom analysis of your app, request a Performance Insight report from HeadSpin. 

HeadSpin Performance Session (link)

We analyzed the mobile web experience using a typical user flow on

Session 1

Slow TLS

HEADSPIN RECOMMENDATION: Determine if any sensitive data is really being fetched from these hosts. If the hosts only serve publically available resources, consider making the requests over HTTP instead of HTTPS. If these hosts are also visible in the Slow Hosts issue, it’s very likely that hop time is the culprit. Confirm that the physical locations of your requests’ destination IPs are where you think they are.

Slow Server => => Virginia Location (Link)

HEADSPIN RECOMMENDATION: Do you expect these hosts to be slow? Are they performing a lot of server-side work before sending their replies? Alternatively, if the hosts are part of a CDN, is it possible they’re serving resources from the wrong edge? Confirm that the physical location of the request’s destination IP is where you think it is.

Page Load Time

The website load time is 1.25 seconds.

For the call, the server takes 436 ms to respond.

Session 2

502 Bad Gateway on Signup Link

The following requests return back a 502 error:

  1. Checkout
  2. Account

We noticed that there was a 502 bad gateway on the signup link when we tried on mobile web, captured in the session as well. This did not happen on desktop when we tried signing up on on the Chrome browser.

3.9MB gif file in the session, didn’t see the gif in the session. (Gif)


How to Work With HeadSpin

HeadSpin Powers Flawless Mobile App Performance

HeadSpin’s state-of-the-art Digital Experience Intelligence Platform™ will empower your engineering teams to:

  • Execute automation tests on real carrier-enabled devices worldwide
  • Discover performance bottlenecks
  • Collect and visualize your performance data
  • Seamlessly integrate with your CI/CD workflow
  • Monitor every critical user flow of your mobile experience
  • Pinpoint issues that cause performance regressions and impact user experience earlier in your development cycle
Overarching Areas of Opportunities

  • Launch new features confidently by monitoring and analyzing root causes of performance issues throughout the development life cycle
  • Drive new user installs and user engagement with optimized performance
  • Forge user trust and safety, accelerating consumer services for critical user paths across your apps and website
  • Benchmark KPIs for mobile performance to understand how your user experience for your mobile app and website compares to your peers in the same industry
  • Support localized testing across thousands of devices and 70+ countries around the world, on real devices under real-world conditions
Expert Holistic Consultation and Strategy 

HeadSpin has the product and solutions expertise to help you perfect the digital experience for your customers! Our team hails from digital pioneers, such as Google and Facebook, and has already delivered enhanced mobile-centric experiences for a diverse set of Fortune 1000 clients. HeadSpin’s strategic insights can help you:

  • Drive new user acquisition, user engagement, and feature adoption
  • Deploy app security measures on iOS and Android
  • Build consistent performance standards and experiences across all your mobile apps and websites 

... insight from HeadSpin helps us prioritize issues so we could deliver a better user experience.

Maria Zhang, CTO, Tinder