---
title: "Issue 15: The latest Web operations, scaling, and performance news"
publication: "StatusCode Weekly"
issue: 15
published_at: "2015-05-21"
canonical_url: "https://weekly.statuscode.com/issues/15"
---

WebOps Weekly 15   . 

The latest Web operations, HTTP, and Web performance news -[Read this on the Web](http://webopsweekly.com/issues/15) 

[![WebOps Weekly\](http://webopsweekly.com/images/webops-header.png)](http://webopsweekly.com) Issue 15 — May 21, 2015     

[Logjam: The Latest TLS Vulnerability Explained](https://blog.cloudflare.com/logjam-the-latest-tls-vulnerability-explained/?utm_source=webopsweekly&utm_medium=email) Another new TLS vulnerability has been published. This post explains how it works and who and what are affected. [weakdh.org](https://weakdh.org/) also explains more and tells you if your browser is vulnerable. Cloudflare [How 500px Serves Up Over 500TB of High Res Photos](http://stackshare.io/500px/how-500px-serves-up-over-500tb-of-high-res-photos?utm_source=webopsweekly&utm_medium=email) Paul Liu, a DevOps Developer at 500px, explains the architecture of the popular photo sharing site. It’s a Rails monolith fronted by Unicorn, Nginx, and HAProxy. StackShare [Boom: HTTP(S) Load Generator, Written in Go](https://github.com/rakyll/boom?utm_source=webopsweekly&utm_medium=email) Billing itself as an ‘ApacheBench (ab) replacement’, Boom is a tiny program that can provide a load to a webapp you want to test/stress. Burcu Dogan [Level up your backend with the best Redis tools and analytics from RedisGreen](http://www.redisgreen.net/docs.html?utm_source=webopsweekly&utm_medium=email) Thousands of apps use RedisGreen to get the best support, analytics, performance and uptime for their Redis servers. Find out what a difference a well-managed in-memory datastore makes. redisgreen.​netsponsored[![\](https://copm.s3.amazonaws.com/17a4f5c8.png)](http://www.redisgreen.net/docs.html?utm_source=webopsweekly&utm_medium=email) [Leveling Up: Simple Steps to Optimize The Critical Rendering Path](https://www.airpair.com/javascript/posts/the-tipping-point-of-clientside-performance?utm_source=webopsweekly&utm_medium=email) tutorial The Critical Rendering Path (or CRP) is the sequence of steps the browser takes to render the critical content of a page. Tiago Romero Garcia [Percheron: Like Vagrant, but for Managing Docker Images and Containers](https://github.com/ashmckenzie/percheron?utm_source=webopsweekly&utm_medium=email) code A tool that lets you manage multiple Docker containers and sets of containers in test, development and prototyping scenarios. Ash McKenzie [How Googlebot Crawls JavaScript](http://searchengineland.com/tested-googlebot-crawls-javascript-heres-learned-220157?utm_source=webopsweekly&utm_medium=email) The results of a series of tests made by SEO experts into how Googlebot parses, runs, and takes JavaScript into account when crawling sites. Search Engine Land [Meaningful Metrics That Get Your Users to Do The Things You Want](http://www.oreilly.com/pub/e/3390?cmp=tw-data-webcast-lp-stuk15_3390&utm_source=webopsweekly&utm_medium=email) video An hour long webinar replay (reg required) that where Buddy Brewer, Mark Zeman and Steve Souders look at how identifying and focusing deeply on a few meaningful metrics facilitates better decision making. O'Reilly Media In brief [Look Before You Leap – The Coming Leap Second and AWS](https://aws.amazon.com/blogs/aws/look-before-you-leap-the-coming-leap-second-and-aws/?utm_source=webopsweekly&utm_medium=email) news AWS Official Blog [Getting Started with aws-sdk-go and CloudFormation](http://junctionbox.ca/2015/05/02/golang-aws-cloudformation.html?utm_source=webopsweekly&utm_medium=email) tutorial Nathan Fisher [Workload Analysis with MySQL's Performance Schema](http://githubengineering.com/using-mysql-performance-schema-for-workload-analysis/?utm_source=webopsweekly&utm_medium=email) tutorial GitHub Engineering [Ask HN: Which Cloud Do You Use, and Why?](https://news.ycombinator.com/item?id=9582997&utm_source=webopsweekly&utm_medium=email) opinion Hacker News [text-rendering: optimizeLegibility is Decadent and Depraved](http://bocoup.com/weblog/text-rendering/?utm_source=webopsweekly&utm_medium=email) opinion While CSS’s ‘text-rendering: optimizeLegibility’ can improve text kerning slightly, it can have dramatic negative impacts on a page’s overall performance. Bocoup [Is It Time to Go SPA Only?](https://medium.com/ben-and-dion/is-it-time-to-go-spa-only-did-google-bot-put-a-nail-in-the-server-rendered-coffin-d3d4128d1ec0?utm_source=webopsweekly&utm_medium=email) opinion With the advances in JavaScript processing by Googlebot, client-side capabilities, and the ever present demand for performance, is it time to double down on single page JavaScript-driven apps? Ben and Dion [Notes On Amazon's ECS (EC2 Container Service), aka Docker on AWS](http://jpetazzo.github.io/2015/01/14/amazon-docker-ecs-ec2-container-service/?utm_source=webopsweekly&utm_medium=email) opinion Jérôme Petazzoni [Justice: A Performance Metric Bar for the Web with a Streaming FPS Graph](http://okor.github.io/justice/?utm_source=webopsweekly&utm_medium=email) tools code Jason Ormand [awslogs: AWS CloudWatch logs for Humans](https://github.com/jorgebastida/awslogs?utm_source=webopsweekly&utm_medium=email) Jorge Bastida [cloudwatch-sender: Send Metrics to InfluxDB/Graphite From Cloudwatch](https://github.com/BBC-News/cloudwatch-sender?utm_source=webopsweekly&utm_medium=email) code BBC News [SwiftProxy: Access Other Object Stores via the OpenStack Swift API](https://github.com/bouncestorage/swiftproxy?utm_source=webopsweekly&utm_medium=email) code Access other stores like Amazon S3, EMC Atmos, Google Cloud Storage, and Microsoft Azure using the Swift API. Bounce Storage [H2O: A Very Fast HTTP Server Written in C](http://h2o.github.io/?utm_source=webopsweekly&utm_medium=email) code Can also be used as a library by other C programs. DeNA Co.​, Ltd.​    [Read this issue on the Web](http://webopsweekly.com/issues/15) [See our archives](http://webopsweekly.com/issues) [Change your email address](*|UPDATE_PROFILE|*)  [Stop getting this newsletter](*|UNSUB|*)  

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