Todd H. Gardner articles - 62 total
Script Loading Race Conditions
You've tested everything locally. Your staging environment is flawless. Then you deploy to production and suddenly users are reporting "undefined is not a function" errors.
The Hidden Cost of Silent API Failures in Production
A checkout flow that worked perfectly in staging cost $50,000 in lost revenue. The culprit? An API returning HTML instead of JSON, and a try-catch block that hid the error. Here's how silent failures destroy production systems.
"Effective September 1, 2020, certificates valid for more than 398 days will not be trusted." No vote. No consensus. Just done.
Apple vs. The CAs: The Day One Company...
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That Time a Certificate Took Down...
From StackOverflow to Vibe Coding: The Evolution of Copy-Paste Development
How we went from copying StackOverflow answers to prompting AI for code, and why the tools to fix our bugs need to evolve too
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Your Wildcard SSL Setup is a Security...
Your Wildcard SSL Setup is a Security Nightmare (And You Don't Even Know It)
You probably gave some random script full access to your entire DNS zone. The same zone that controls your email. Your subdomains. Your everything. Let me show you exactly how badly you just compromised your infrastructure, and why nobody's talking about it.
Why Your Perfect Lighthouse Score Doesn't Mean Your Site is Fast
50% of perfect Lighthouse scores still fail real users. Learn why synthetic testing misses critical performance issues and how Real User Monitoring reveals the truth.
HTTP Caching Deep Dive: Performance Optimization Patterns Every Developer Should Know
Discover how to leverage HTTP caching headers to dramatically improve web performance without writing a single line of JavaScript. Learn practical caching strategies, common pitfalls to avoid, and how to implement resource-specific caching patterns that can cut load times by up to 67%.
GTMetrix Alternatives: Better Ways to Measure Web Performance
For years, GTMetrix was a go-to tool for checking website speed. But here’s the thing—paying for...
How to Optimize Website Images for Faster Load Times
Optimize your website images for faster load times, better SEO, and improved user experience with smart compression, lazy-loading, responsive formats, and CDN hosting.
Understanding “Failed to Fetch” JavaScript Errors and How to Fix Them
If you’re building modern web applications, you’ve probably encountered the dreaded “Failed to Fetch” error at some point. This common JavaScript error happens when your web app can’t connect to a server or resource, leading to frustrating moments for both users and developers.
How to Fix Long Animation Frames (LoAFs) and Speed Up Your Website
LoAFs happen when the browser takes too long to process an animation frame, leading to visual stuttering, delayed interactions, or a general feeling of “jankiness.”
What is a 'Rage Click'?
You know that thing where you are so angry at a broken website that you furiously click that button...
Our Super Friendly AI Sloth that Analyzes Your Observability Data
Seems like everyone is building a ChatGPT thing right now, doesn’t it? Well we are too! Inspired by...
Expanding Our Vision: Unifying Client-Side Observability Data
We built an incredible platform that distilled complex data down into simple reports and recommendations. Lots of teams around the world found valuable insights in Request Metrics that they couldn’t get anywhere else.
Explaining Performance to Non-Technical Stakeholders
Whether you’re an e-commerce company, a SaaS provider, or a content publisher, understanding the...
Audit Google Ad Performance With Lighthouse
Implementing Google Ads can be complicated. If done incorrectly, it negatively impacts your website’s performance. Fortunately, there is a new Google Light...
How To Read Flame Charts and Percentiles
Charting can be complicated and intimidating, especially when dealing with web performance data,...
Google Ads Are Slowing You Down
Google has a well earned reputation for speed. At least on their own sites. It’s an entirely...
See Current Core Web Vitals with Chrome
Google is using Core Web Vitals as a factor in search results rankings. They’ve also found that...
Optimizing Static HTML And Images With Webpack
Webpack is great for building Javascript applications, but did you know it can optimize static HTML...
Optimizing Images for Web Performance with NGINX
Images are a constant source of pain when developing websites. There are many formats and resolutions...
Fast Inline Images With React and Webpack
Webpack is great for building React applications, but did you know it can help you optimize app...
5 Tips To Make Google Fonts Faster
Google Fonts is a fantastic tool for web designers and developers, but it is sometimes one of the...
Using Brotli Compression in NGINX
Brotli is gaining steam as the compression algorithm du jour for high performance websites. Created...
HTTP/3 is Fast
HTTP/3 is here, and it’s a big deal for web performance. See just how much faster it makes...
Using HTTP Caching: 2022 Guide
The fastest website is the website that is already loaded, and that’s exactly what we can do with...
Synthetic Testing and Real User Monitoring
Synthetic Testing and Real User Monitoring are the most important tools in your performance toolbox....
Advertising's Performance Tradeoffs
Advertising is everywhere on the web and users have noticed. More than 40% of internet users block...