Resource Load Speed & Availability Checker | SEOcheck.hu
Check Which CSS, JS and Image Files Slow Down Your Page
This tool scans the given URL, collects all linked CSS, JavaScript, image and other assets, then checks their HTTP status and measures how fast they respond.
Enter a page URL you want to analyze. The system will download the HTML source, extract all referenced assets (stylesheets, scripts, images and common link resources) and perform a lightweight HTTP request to each of them. For every file you will see whether it is reachable, which HTTP status code it returns, and how many milliseconds it takes until the server responds. This allows you to quickly identify broken or very slow assets that hurt user experience and PageSpeed scores. Fixing or optimizing these files is often a quick win before starting deeper SEO work.
When should you run a resource load check?
Use this tool whenever you suspect that a page is loading slowly, or when PageSpeed Insight reports blocking or slow static assets. Start with your most important landing pages and category pages, then check templates used across the whole site. Broken or heavily delayed CSS, JS or image files can seriously hurt both user experience and SEO performance.
What to do with slow or broken assets
For broken resources, fix the path or remove the reference entirely. For slow responses consider moving the file to a faster server or CDN, compressing and minifying large CSS/JS, and optimizing or lazy-loading heavy images. After each round of fixes, re-run the test on this page to verify the improvement and keep a cleaner, faster technical foundation for your SEO work.
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