Website Performance Test
Supercharge Load Speeds
Slow load speeds kill conversion rates. ScanFix measures real server response times, DOM node counts, and asset payload weights.
What ScanFix Checks On Your Site
Deterministic auditing aligned with W3C standards, axe-core rules, and Google Core Web Vitals.
Server Response Time (TTFB)
Pinpoints backend latency bottlenecks and slow DNS resolution times impacting Google ranking signals.
HTML & Asset Weight Audit
Identifies oversized HTML payloads, uncompressed images, and excessive script bundles bloating mobile downloads.
DOM Complexity Signals
Measures excessive DOM node depth and complexity that degrade rendering and battery life on mobile devices.
Frequently Asked Questions
Everything you need to know about our automated website checks.
What is a healthy TTFB for modern websites?
A healthy Time to First Byte is under 200ms for static/cached pages, and under 600ms for dynamically rendered pages.
How do uncompressed images affect speed scores?
Oversized images represent over 70% of transferred payload weight. ScanFix highlights uncompressed assets and recommends next-gen WebP formats.