The Netflix TechBlog

MARCH 7, 2024

In this article, we cover a few key integrations that we provide for various layers of the Metaflow stack at Netflix, as illustrated above. Deployment: Cache To produce business value, all our Metaflow projects are deployed to work with other production systems. We have developed an officially supported pattern to cover such use cases.

Systems 231

Systems Media Cache Open Source 231

Smashing Magazine

JUNE 29, 2021

Without build optimizations (incremental builds, caching, we will get to those soon) this will eventually become unmanageable as well — think about going through all images in a website: resizing, deleting, and/or creating new files over and over again. The cache is invalidated on a time basis. Creating an On-Demand builder.

Cache 139

Cache Website Strategy Traffic 139

Scalegrid

MARCH 28, 2024

Key Takeaways Redis offers complex data structures and additional features for versatile data handling, while Memcached excels in simplicity with a fast, multi-threaded architecture for basic caching needs. Redis is better suited for complex data models, and Memcached is better suited for high-throughput, string-based caching scenarios.

Cache 130

Cache Storage Architecture Scalability 130

KeyCDN

SEPTEMBER 3, 2020

Even if a browser doesn't support WebP, our WebP caching feature will ensure that the correct image format is delivered. WebP means faster loading times and less traffic. WebP delivery doesn't require any change on the origin server with the WebP caching feature. We won't go into detail in this article.

Processing 127

Processing Cache Website Servers 127

Smashing Magazine

DECEMBER 23, 2020

The service workers enable the offline usage of the PWA by fetching cached data or informing the user about the absence of an Internet connection. When developing a PWA, you can cache the application shell’s resources and assets in the browser. Cached content with IndexedDB. Cache first, then network. Service Workers.

Cache 136

Cache Internet Internet Google 136

KeyCDN

FEBRUARY 4, 2021

Oddly enough we encountered this error to a third party website while writing this article. ISPs do cache DNS however which means if your first provider goes down it will still try to query the first DNS server for a period of time before querying for the second one. So DNS services definitely go down!

Cache 134

Cache Website Internet Internet 134

Smashing Magazine

MARCH 6, 2025

How To Fix Largest Contentful Issues With Subpart Analysis How To Fix Largest Contentful Issues With Subpart Analysis Matt Zeunert 2025-03-06T10:00:00+00:00 2025-03-06T14:50:25+00:00 This article is sponsored by DebugBear The Largest Contentful Paint (LCP) in Core Web Vitals measures how quickly a website loads from a visitors perspective.

Website 59

Website Google Speed Metrics 59

Smashing Magazine

MAY 12, 2022

Recently Noam Rosenthal published two articles analyzing the common benefits and capabilities provided by various frameworks , and also their associated costs. I highly recommend checking out these articles. For this article, I primarily rely on insights gained from analyzing data presented using the Core Web Vitals Technology Report.

Google 136

Google Performance Website Mobile 136

The Netflix TechBlog

NOVEMBER 23, 2020

Introducing gnmi-gateway: a modular, distributed, and highly available service for modern network telemetry via OpenConfig and gNMI By: Colin McIntosh, Michael Costello Netflix runs its own content delivery network, Open Connect , which delivers all streaming traffic to our members.

Open Source 187

Open Source Network Transportation Cache 187

CSS - Tricks

APRIL 28, 2022

In my last article , we went over how to set up a web app that serves chunks and bundles of CSS and JavaScript from CloudFront. While CloudFront’s edge caching does offer benefits, serving your app’s resources from these multiple locations is not without a cost of its own. We’ll get into all of this! We’ll get into all of this!

Cache 83

Cache AWS Servers Traffic 83

Jos

JUNE 2, 2018

When they dug into the data, they found that the reason load times had increased was that they got a lot more traffic from Africa after doing the optimizations. How would you architecture a non-trivial size web project (client, server, databases, caching layer)? It ticked all the 6 ideas that I have talked about in the article.

Performance 237

Performance Speed Google Media 237

Dotcom-Montior

JUNE 25, 2020

This project implements multiple techniques and tactics to censor China’s internet and controls the internet gateways to analyze, filter, and manipulate the internet traffic between inside and outside of China. If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. Blocking IP Access.

Website 97

Website Internet Internet Performance 97

Smashing Magazine

AUGUST 3, 2023

It increases our visibility and enables us to draw a steady stream of organic (or “free”) traffic to our site. While paid marketing strategies like Google Ads play a part in our approach as well, enhancing our organic traffic remains a major priority. The higher our organic traffic, the more profitable we become as a company.

Performance 78

Performance Cache Traffic Metrics 78

Smashing Magazine

JULY 29, 2019

This article is part of a series in which I attempt to use the web under various constraints, representing a given demographic of user. MB , that suggests I’ve got around 29 pages in my budget, although probably a few more than that if I’m able to stay on the same sites and leverage browser caching. Let’s talk about caching.

Cache 99

Cache Mobile Google Network 99

Smashing Magazine

JUNE 25, 2020

Today, we’ll address storing and serving files for both single-server and scalable deployments while considering factors like compression, caching, and availability. If you’re on the latter end of this scale, you probably need more specialized advice than this article is prepared to give. Client-Side Caching.

Media 77

Media Cache Storage AWS 77

Smashing Magazine

SEPTEMBER 6, 2021

Practical HTTP/3 deployment options ( current article ). You would, however, be hard-pressed even today to find a good article that details the nuanced best practices. However, as discussed in part 2 , push is very difficult to use correctly due to issues with congestion control, caching, prioritization, and buffering.

Network 120

Network Servers Cache Traffic 120

Dotcom-Montior

MARCH 27, 2022

This project implements multiple techniques and tactics to censor China’s internet and controls the internet gateways to analyze, filter, and manipulate the internet traffic between inside and outside of China. If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. Blocking IP Access.

Website 82

Website Internet Internet Performance 82

ACM Sigarch

OCTOBER 12, 2020

have pointed out in their recent Science article (“There’s plenty of room at the Top”) — and cited by Hennessy in his Turing lecture — a naive implementation of matrix-matrix multiply in Python runs between 100x and 60,000x slower than their counterparts written in a “metal” language (highly optimized C).

C++ 108

C++ Benchmarking Hardware Architecture 108

Smashing Magazine

AUGUST 9, 2021

These statements and articles typically skip over some crucial technical details , are lacking in nuance, and usually are only partially correct. In this article series, I will discuss the new protocol, especially its performance features , with more nuance. We will discuss these features in more depth later in this article.

Transportation 145

Transportation Internet Internet Network 145

CSS - Tricks

JULY 25, 2019

This article is from my friend Ben who runs Calibre , a tool for monitoring the performance of websites. In this article, we uncover how PageSpeed calculates it’s critical speed score. Cache-Headers missing? Service workers that will cache the bytecode result of a parsed and compiled script. Related Articles.

Google 73

Google Engineering Speed Mobile 73

Scalegrid

JANUARY 5, 2024

This article cuts through the complexity to showcase the tangible benefits of DBMS, equipping you with the knowledge to make informed decisions about your data management strategies. However, some challenges may arise when scaling a DBMS, such as improper traffic distribution, inefficient database management, and performance issues.

Efficiency 147

Efficiency Storage Database Scalability 147

Percona Community

DECEMBER 4, 2020

Overview In this article, I look at how poorly designed sharding systems and replication systems in PostgreSQL affect query performance in high volume situations, and how to ensure data consistency across many servers.

Performance 52

Performance Cache Traffic Database 52

Smashing Magazine

JUNE 1, 2022

In this article, we will review what third-party resource requests are, consider how impactful they can be to the user experience, and discuss common optimization strategies to reduce the impact on the user experience. They can also highlight very long redirection chains in your third-party traffic.

Website 138

Website Design Network Testing 138

CSS - Tricks

JULY 15, 2020

This is not available in the src directory until we run a command to copy over the default from the cache: cp.cache/default-html.js Let’s pretend we work with a marketing department and they want to start measuring traffic with Google Analytics. Static files are cached on the edge reducing Time to First Byte (TTFB). src/html.js.

Cache 74

Cache Google Analytics Servers 74

Speed Curve

FEBRUARY 5, 2024

Caching the base page/HTML is common, and it should have a positive impact on backend times. Key things to understand from your CDN Cache Hit/Cache Miss – Was the resource served from the edge, or did the request have to go to origin? In the case of a cache miss, this should be zero.)

Servers 64

Servers Cache Benchmarking Retail 64

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. The fastest Androids predictably remain 18-24 months behind, owing to cheapskate choices about cache sizing by Qualcomm, Samsung Semi, and all the rest. The Moto G4 , for example.

Performance 127

Performance Network Mobile Metrics 127

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. While this may not seem significant for websites with low traffic, as traffic to the site begins to increase, so does the amount of energy consumed. They allow you to cache resources on the user's device when they visit your site for the first time.

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. While this may not seem significant for websites with low traffic, as traffic to the site begins to increase, so does the amount of energy consumed. They allow you to cache resources on the user's device when they visit your site for the first time.

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. While this may not seem significant for websites with low traffic, as traffic to the site begins to increase, so does the amount of energy consumed. They allow you to cache resources on the user's device when they visit your site for the first time.

Energy 40

Energy Cache Traffic Website 40

Smashing Magazine

OCTOBER 31, 2023

Answering Common Questions About Interpreting Page Speed Reports Answering Common Questions About Interpreting Page Speed Reports Geoff Graham 2023-10-31T16:00:00+00:00 2023-10-31T17:06:18+00:00 This article is sponsored by DebugBear Running a performance check on your site isn’t too terribly difficult. That’s what this article is about.

Speed 117

Speed Google Website Metrics 117

Smashing Magazine

MARCH 6, 2025

We recently published an article about how to improve the TTFB metric. So, to improve the TTFB, we need to speed up that process or cache the HTML so we can skip the HTML generation entirely. CrUX data is superficial, only reported for high-traffic pages , and takes at least 4 weeks to fully update after a change has been rolled out.

Website 59

Website Google Speed Metrics 59

Dotcom-Montior

APRIL 27, 2021

This project implements multiple techniques and tactics to censor China’s internet and controls the internet gateways to analyze, filter, and manipulate the internet traffic between inside and outside of China. If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. Blocking IP Access.

Website 52

Website Internet Internet Performance 52

Dotcom-Montior

JUNE 25, 2021

This project implements multiple techniques and tactics to censor China’s internet and controls the internet gateways to analyze, filter, and manipulate the internet traffic between inside and outside of China. If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. Blocking IP Access.

Website 52

Website Internet Internet Performance 52

Smashing Magazine

SEPTEMBER 24, 2021

That was until we went to production with our highest traffic customer. To mitigate the performance issues, we had to add a lot of (unbudgeted) extra servers and had to aggressively cache pages on a reverse proxy. The small adjustments we made, the lessons learned from this article, really helped with this. Further Reading.

Website 132

Website Code Servers Analytics 132

Percona

SEPTEMBER 1, 2023

Efficient memory management, including optimizing query caches and buffer pools, can help strike the right balance between memory consumption and query response times. Key parameters like the buffer pool size significantly impact efficiency by determining how much data MySQL can cache in memory for rapid access.

Tuning 52

Tuning Database Performance Hardware 52

Jos

JUNE 2, 2018

When they dug into the data, they found that the reason load times had increased was that they got a lot more traffic from Africa after doing the optimizations. How would you architecture a non-trivial size web project (client, server, databases, caching layer)? It ticked all the 6 ideas that I have talked about in the article.

Performance 100

Performance Speed Google Media 100

Smashing Magazine

APRIL 11, 2022

It’s common knowledge that better website performance results in more conversions, more traffic, and better user experience. We can use the preload attribute for the HTML link element to optimize loading performance by ensuring that the browser discovers the resource earlier, downloads it, and caches it. Use It Sparingly.

Media 78

Media Tuning Metrics Google 78