I’ve been noticing a growing disconnect between modern web development practices and technical SEO requirements, especially on custom-built websites.
A lot of developers focus heavily on UI/UX and JavaScript frameworks but overlook how search engines actually crawl and understand pages. Some of the most common issues I still see are:
Using <div> elements for everything instead of semantic HTML
Poor Core Web Vitals caused by oversized images and heavy scripts
Client-side rendering without proper SSR or pre-rendering
Missing heading hierarchy and weak internal linking
Bloated JS bundles slowing down mobile performance
The problem is that these issues become much harder to fix after launch. In my opinion, technical SEO should be part of the development architecture from the start instead of something “the marketing team handles later.”
I’ve also been testing performance and SEO optimizations on projects like Apklounge and noticed even small improvements in structure and loading speed can impact visibility significantly.
Curious to hear other developers’ thoughts:
Do you actively think about SEO while coding?
Are frameworks helping or hurting technical SEO today?
What’s the biggest SEO mistake you see developers making repeatedly?
You’re absolutely right about this. I’ve also noticed that many developers focus heavily on design and modern frameworks but often ignore technical SEO during the development phase. Later, when the website struggles with rankings or performance, fixing those issues becomes much harder.
We’ve seen that even a well-designed website can underperform if the technical foundation isn’t strong. Problems like poor Core Web Vitals, heavy JavaScript, missing semantic structure, or weak mobile optimization can seriously affect visibility on Google.
In our experience, frameworks are not the issue by themselves. The real problem is how they are implemented. When developers don’t think about crawlability, rendering, page speed, or clean architecture from the beginning, SEO suffers.
One of the biggest mistakes we repeatedly see is treating SEO as something to handle after development is complete. Technical SEO should be part of the development process from day one, just like responsiveness, security, and user experience.
Even small improvements in loading speed, structured content, and optimized code can make a noticeable difference in rankings and overall user engagement over time.