👋 Hey Reader, Welcome back to another episode of TechSEO Vitals Newsletter! It’s been over a year since we’ve known that most LLM and AI search engines don’t render JavaScript when they crawl our websites. ChatGPT, Claude, and Perplexity simply skip JavaScript entirely. I first wrote about this on LinkedIn last year. However, not much has changed since then. Every day, I visit websites that rely entirely on JavaScript rendering. Their owners don’t realize they need server-side rendering at a...
16 days ago • 4 min read
👋 Hey Reader, Welcome back to another episode of TechSEO Vitals Newsletter! This week, we're tackling your website's most expensive single point of failure, which most companies don't even know exists. One wrong character in a simple text file can make your entire business invisible to Google and other search engines. Let's dive in 🤿 ➡️ TL;DR One wrong line in robots.txt can block your entire website from search engines. HubSpot lost 10.5 million pages from Google due to a simple...
30 days ago • 5 min read
👋 Hey Reader, Welcome back to another episode of the TechSEO Vitals Newsletter! This week, we're tackling something that's silently killing conversions on most websites - and you probably don't even know it's happening. Let's dive in 🤿 ➡️ TL;DR Slow website interactions (measured by INP) are costing businesses millions in lost revenue. Rakuten saw a 53% revenue per visitor increase after fixing interaction delays. 97% of desktop sites perform well, but only 65% of mobile sites meet Google’s...
about 1 month ago • 4 min read
👋 Hey Reader, After two weeks I’m back with a new episode of the TechSEO Vitals Newsletter. This time we will dive into a topic about something that annoys all of us when it happens. So let’s dive in. Feedbacks are welcome! 🙏 ➡️ TL;DR Visual instability known as Cumulative Layout Shift (CLS) directly impacts revenue. Carpe increased revenue by $150K monthly after fixing CLS. The problem is widespread but fixable. Most sites can improve visual stability in days by adding image dimensions and...
about 2 months ago • 4 min read
👋 Hey Reader, After a short break, I'm back with a new episode of TechSEO Vitals newsletter and a slightly improved episode structure. Since more than half of subscribers are business-oriented, I'm splitting each episode into two parts. The business side of the problem, and developer's corner for a deeper dive into the technical aspect of the issue. I hope you'll enjoy this new structure I’ve designed. Feedbacks are welcome! 🙏 ➡️ TL;DR Slow-loading main content drives away customers. Sites...
2 months ago • 4 min read
👋 Welcome to the TechSEO Vitals Newsletter #18 Hey Reader, Time to First Byte, commonly known as TTFB, stands as the most critical metric in technical SEO and overall web performance. Basically, it measures the wait time from when you hit enter until your browser receives its first response from the website’s server. During this time, you see nothing but a blank screen. Unfortunately, TTFB is also one of the hardest metrics to improve because the underlying issues often run deep within your...
4 months ago • 3 min read
👋 Welcome to the TechSEO Vitals Newsletter #17 Hey Reader, A multilingual website allows visitors to experience your content in their native language, creating trust and connection that drives conversions. However, while businesses focus on translations, payment processors, delivery methods, and local regulations, the technical foundation often gets overlooked. Undoubtedly, all of them are critical parts of the expansion, but technical SEO and web performance carry equal weight. Choosing the...
4 months ago • 3 min read
👋 Welcome to the TechSEO Vitals Newsletter #16 Hey Reader, Crawlability has become a critical challenge as the number of web crawlers and their requirements grow exponentially. When you fall behind on keeping up with these evolving demands, your brand and website can disappear from major platforms, such as Google, Bing and ChatGPT. In this article, I’m exploring the most essential aspects of crawlability that every website must implement to stay visible in search engines and AI tools....
5 months ago • 4 min read
👋 Welcome to the TechSEO Vitals Newsletter #15 Hey Reader, Website migrations are among the most challenging aspects of technical SEO. Despite careful planning and thorough preparation, there can always be unexpected problems during the migration process. I’ve prepared a dedicated checklist that you can use to minimize these issues in your upcoming project. This technical SEO checklist compiles my years of migration experience and I divided it into three main phases: Pre-Migration, Migration,...
5 months ago • 6 min read