How We Improved Our Website's Mobile PageSpeed Score From 81 to 100
Website performance matters for both users and search engines. We recently worked on our own website and improved its mobile PageSpeed score from 81 to 100. Instead of simply sharing the final score, we wanted to docum
Website performance matters for both users and search engines.
We recently worked on our own website and improved its mobile PageSpeed score from 81 to 100.
Instead of simply sharing the final score, we wanted to document what we changed, what caused the performance issues, and what the results looked like afterward.
The Starting Point
Before making the changes, our mobile PageSpeed score was:
81 / 100
The website was functional, but there was still room for improvement.
We checked the PageSpeed Insights report to identify which resources and page elements were contributing to the performance issues.
The goal wasn't to blindly optimize everything. We wanted to identify the actual bottlenecks and make targeted changes.
What We Changed
We focused on several areas that commonly affect website performance:
- Reduced unnecessary resources We reviewed the CSS and JavaScript being loaded on the page and removed or reduced resources that weren't necessary for the initial page load.
This helped reduce the amount of work the browser needed to perform before the page became usable.
- Optimized images Large images can have a significant effect on mobile performance.
We reviewed the images used on the page and optimized them so the browser didn't have to download unnecessarily large files.
We also paid attention to how images were loaded so that they wouldn't interfere with the initial rendering of the page.
- Improved CSS delivery We reviewed our CSS and reduced unnecessary styling and resources that were being loaded before the main content could render.
The objective was to make the critical part of the page available to the browser as quickly as possible.
- Reduced unnecessary page overhead We also reviewed the HTML structure and other elements that weren't contributing directly to the user experience.
Small improvements across several areas can add up to a noticeable performance difference.
The Result
After making the changes, we ran the page through Google PageSpeed Insights again.
The mobile score improved from:
81 β 100
The final report also showed improved performance metrics compared with the original test.
The important point is that the improvement didn't come from one magic optimization.
It came from identifying several smaller performance problems and addressing them systematically.
Before and After
Before: Mobile PageSpeed β 81
After: Mobile PageSpeed β 100
We captured screenshots of both tests as well as the final performance metrics so the results can be independently reviewed.
What We Learned
One of the biggest lessons from this process is that website performance optimization should be based on measurements rather than assumptions.
Instead of asking:
"What optimization should we try?"
It's usually better to ask:
"What is the performance report actually telling us?"
That approach makes it easier to prioritize the changes that are most likely to have an impact.
Key Takeaways
Measure performance before making changes.
Optimize images and other large resources.
Reduce unnecessary CSS and JavaScript.
Pay attention to what blocks the initial rendering.
Test again after every major optimization.
Don't rely on a single optimization to solve every performance issue.
Keep real before-and-after measurements.
One Important Limitation
A PageSpeed score is useful, but it isn't the entire story.
Real users can have different devices, network conditions, browsers, and geographic locations.
A perfect lab score doesn't automatically mean every visitor will experience a perfect website.
That's why performance should be treated as an ongoing process rather than a one-time task.
Full Case Study
We've published the complete case study on our website, including the detailed before-and-after results, screenshots, metrics, and the changes we made:
https://seovoro.com/single-blog.php?slug=case-study-mobile-pagespeed-81-to-100
If you're working on website performance yourself, hopefully this breakdown gives you a useful starting point.
About Seovoro
Seovoro helps businesses improve their organic search visibility through SEO, technical optimization, content, local SEO, and AI-search strategies.
Website: https://seovoro.com
Originally published by Dev.to WebDev. Aggregated on AIWithGhost for educational purposes β full credit and traffic to the original publisher.