Site Performance Analysis
Search engines—and your users—have zero patience for slow sites. 42crawl provides a professional performance suite that goes beyond simple load times to identify the exact resources that are slowing you down. This is the foundation of technical SEO and generative engine optimization.
Master Your Performance Metrics
While we track Core Web Vitals, we also look at the "under the hood" data that influences your rankings. A modern SEO crawler must provide these insights.
1. The Timing Breakdown
- TTFB (Time to First Byte): How fast is your server responding? A slow TTFB usually means you need better hosting or a CDN.
- DOM Content Loaded: The moment the browser has finished parsing the HTML.
- Full Page Load: When the very last image and script has finished downloading.
- Time to Interactive (TTI): The most important human metric—when can a user actually click a button?
2. The "Page Weight" Breakdown
We categorize every byte your site sends to a user:
- Images: Usually 60-80% of page weight. We flag heavy files that need compression.
- JavaScript: The #1 cause of "jank." We identify heavy scripts that block the main thread.
- CSS: We find large styling files that prevent the page from showing content quickly.
- Fonts: We catch unoptimized custom fonts that cause "layout shifts."
Third-Party Bloat Audit
Modern sites are often weighed down by "invisible" trackers and chat widgets. These are outside your direct control, but they kill your speed and your Core Web Vitals scores.
42crawl identifies exactly which third-party domains are the biggest "latency offenders." This is a key part of your GEO optimization strategy.
Your Optimization Checklist
For every single page, we run an automated best-practice audit:
- Modern Formats: We list images that should be converted to WebP or AVIF.
- Minification: We find uncompressed CSS and JS files.
- Render-Blocking: We highlight scripts in the
<head>that stop the page from loading. - Cache Policy: We check if your server is telling browsers to "remember" your assets.
How to Read Your Score
In the Performance tab, we give you a score from 0-100:
- ⚡ 90-100 (Excellent): Your site is world-class.
- 📈 70-89 (Good): Fast, but there are "easy wins" on the table.
- ⚠️ 50-69 (Needs Work): Slow speed is likely hurting your SEO and conversions.
- 🚨 <50 (Critical): Immediate action is required to prevent ranking loss.
By monitoring these metrics and your technical SEO health across your entire site, you ensure you stay competitive in the high-speed web of 2026. Use 42crawl to lead your generative engine optimization efforts.