Third-Party Performance Impact and Management - It's My Third Party and I'll Cry If I Want To

Explore the impact of third-party providers on modern web development performance in this insightful conference talk from performance.now() 2018. Delve into the detection, auditing, and management of unruly or uninvited third-party elements such as fonts, analytics, ads, and tracking. Discover tools for stress-testing and quantifying the overhead these third parties bring, and understand their implications for users and businesses. Learn about potential performance degradation and security vulnerabilities caused by third-party integrations. Examine real-world examples, including the "Man in the Middle" scenario and issues faced by major companies like YouTube and Walmart. Gain practical knowledge on grouping requests by domain, handling missing files, and improving JavaScript failure resilience. Compare third-party providers to Content Delivery Networks (CDNs) and explore strategies for optimizing web performance in the face of external dependencies.

Introduction
Third Parties
Key Sections
How Can Third Parties Affect Us
ManInTheMiddle
YouTube
Network Issues
Third Party Runtime
Train Line
Walmart
Skycalm
RequestMap
Specific Domains
What happens if a file goes missing
How well does our JavaScript fail
Group by domain
Unafraid spoilers
Ask Dont Tell
Third Party vs CDN