Audisto Crawler Hints
Website Performance Analysis Tool Technical SEO & Speed Checker
What is the performance tool for
Find Technical Performance Issues: Detect problems like oversized DOM structures, unoptimized images, and inefficient resource loading that slow down your pages and hurt Core Web Vitals scores.
Optimize Resource Delivery: Identify opportunities to improve JavaScript and CSS delivery, enable proper compression, and optimize resource loading for faster page speeds.
Improve Search Engine Crawling: Address technical issues that affect crawl efficiency, including redirect chains, header sizes, and page weight to improve search engine indexing.
Monitor Website Health: Track performance metrics across your entire website to maintain optimal loading times and prevent technical debt accumulation.
How to check performance issues at scale
Performance is a key ranking factor
Website performance directly impacts your business. Our analysis identifies technical issues that affect page speed, user experience, and search rankings. While our quick check gives you immediate insights for single pages, our full crawler helps you maintain optimal performance across your entire website - ensuring you never miss critical issues that could hurt your business.
Problem indicating Performance related hints
<html> contains more than 1500 nodes
The HTML of a page has an excessive DOM size of more than 1.500 nodes.Learn more
<img> has no width and/or height attribute
If an image without a width or height attribute is found, the URL is flagged with this hint.Learn more
<meta refresh> found
If a meta refresh is found, the URL is flagged with this hint.Learn more
<script> loaded multiple files from local domain
If multiple JavaScript files from the crawled domain are loaded, the URL is flagged with this hint.Learn more<script> more than 3 KiB within HTML
If more than 3 KiB of JavaScript is found within the HTML, the URL is flagged with this hint.Learn moreCSS <style> content larger than 0.5 KiB
If more than 0.5 KiB of CSS is found within <style> tags, the URL is flagged with this hint.Learn moreCSS loaded multiple files from local domain
If multiple CSS files from the domain of the crawl are loaded by the URL, it is flagged with this hint.Learn moreCompression not enabled
Content compression was not enabled, or gzip, deflate or brotli compression is not supported by the server.Learn moreHTTP headers more than 8 KiB in size
If the HTTP response headers in total are more than 8 KiB in size, the URL is flagged with this hint.Learn moreRedirect: Chain starts here
This URL is the first element in a chain of multiple redirects.Learn more
Informational Performance related hints
<html> is more than 100 KiB in size
If a document is more than 100 KiB in size, the URL is flagged with this hint.Learn moreCSS <style> found
If CSS is found within a <style> tag, the URL is flagged with this hint.Learn moreCSS style attribute found
If CSS is found as a style attribute, the URL is flagged with this hint.Learn more