What is GEO (Generative Engine Optimization)?

GEO stands for Generative Engine Optimization. It is the practice of optimizing your website to appear in AI-generated answers from ChatGPT, Perplexity, Google AI Overviews, and Claude. Foglift is the first tool to combine SEO and GEO analysis in one scan.

What does Foglift analyze?

Foglift scans websites across 5 categories: SEO (meta tags, headings, Open Graph), GEO (AI-crawler access, structured data, citation-readiness), Performance (Core Web Vitals, load time), Security (HTTP headers), and Accessibility (WCAG compliance, contrast, alt text).

How is Foglift different from Ahrefs or Semrush?

Ahrefs and Semrush focus only on traditional SEO. Foglift is the first tool to combine SEO + GEO (AI search optimization) analysis, checking if your site is ready for AI-generated answers. It starts free and costs 10x less than alternatives.

Does Foglift have an API?

Yes. Foglift offers a free public REST API at foglift.io/api/v1/scan that returns JSON results. Developers can use it from the terminal, CI/CD pipelines, or AI coding assistants like Claude Code and Cursor.

What are Core Web Vitals?

Core Web Vitals are three metrics that measure real-world user experience: LCP (Largest Contentful Paint) measures loading speed — should be under 2.5s. INP (Interaction to Next Paint) measures responsiveness — should be under 200ms. CLS (Cumulative Layout Shift) measures visual stability — should be under 0.1.

How can I test my website load time?

Use Foglift's free Page Speed Checker for instant results. You can also use Google PageSpeed Insights, WebPageTest, or Chrome DevTools. For real user data, check Chrome User Experience Report (CrUX) data in Google Search Console.

Website Load Time: How to Test & Improve Page Speed in 2026

Test now: Use our free Page Speed Checker to test any URL with Google PageSpeed Insights and get Core Web Vitals scores.

Why Website Load Time Matters

Every second counts. Research shows that 53% of mobile users abandon sites that take longer than 3 seconds to load. Amazon found that every 100ms of latency cost them 1% in sales. For smaller sites, the impact is even more dramatic — a slow site doesn't just lose visitors, it never acquires them in the first place because Google pushes slow sites down in search results.

53%

mobile users leave after 3s

revenue lost per 100ms delay

2.5s

Google's LCP threshold

70%

of sites fail Core Web Vitals

Core Web Vitals Explained

Google uses three Core Web Vitals as direct ranking signals:

LCP (Largest Contentful Paint)

< 2.5s

Time until the largest visible content element (hero image, heading) is rendered. The most important speed metric for SEO.

INP (Interaction to Next Paint)

< 200ms

Time from user interaction (click, tap, keypress) until the next visual update. Replaced FID in 2024 as the responsiveness metric.

CLS (Cumulative Layout Shift)

< 0.1

Measures unexpected layout shifts during page load. Those annoying jumps when ads or images load late — Google penalizes them.

How to Test Your Website Load Time

Foglift Page Speed Checker

Free, instant. Uses Google PageSpeed Insights API. Shows LCP, INP, CLS, performance score, and optimization opportunities.

Google PageSpeed Insights

Google's official tool. Shows both lab data (Lighthouse) and real-world data (CrUX). The benchmark for page speed testing.

WebPageTest

Advanced testing with waterfall charts, video recording, and multi-step transactions. Test from 30+ global locations.

Chrome DevTools

Built into Chrome. Network tab for waterfall analysis, Performance tab for detailed rendering timeline, Lighthouse for audits.

12 Ways to Improve Website Load Time

Optimize images

Use WebP/AVIF formats, compress images, serve responsive sizes with srcset. Images typically account for 50%+ of page weight. Tools: Sharp, Squoosh, Next.js Image component.

Enable compression (Gzip/Brotli)

Brotli compression reduces text-based assets by 15-25% more than Gzip. Most CDNs and hosts support it. Check your HTTP headers for content-encoding: br.

Implement a CDN

Serve assets from edge servers close to users. Cloudflare (free tier), Vercel Edge Network, or AWS CloudFront can cut latency by 50%+ for global users.

Minimize JavaScript

Reduce JS bundle size with code splitting, tree shaking, and lazy loading. Remove unused dependencies. Every 100KB of JS adds ~300ms of parse/compile time on mobile.

Optimize CSS delivery

Inline critical CSS (above-the-fold styles) in the HTML head. Defer non-critical CSS. Remove unused CSS with PurgeCSS or Tailwind's built-in purge.

Set proper cache headers

Use Cache-Control headers with long max-age for static assets (images, CSS, JS). Set immutable for hashed filenames. This eliminates repeat downloads for returning visitors.

Preload critical resources

Use <link rel='preload'> for fonts, hero images, and critical scripts. Use <link rel='preconnect'> for third-party domains (analytics, CDN, APIs).

Lazy load below-the-fold content

Use loading='lazy' on images and iframes below the fold. Use Intersection Observer API for custom lazy loading. Don't lazy load above-the-fold content (hurts LCP).

Reduce server response time (TTFB)

Target under 200ms Time to First Byte. Upgrade hosting, use server-side caching (Redis, Varnish), optimize database queries, use connection keep-alive.

Eliminate render-blocking resources

Move scripts to bottom of body or use async/defer. Use media queries on CSS links for print stylesheets. Only load what's needed for initial render.

Optimize web fonts

Use font-display: swap, subset fonts to needed characters, self-host instead of Google Fonts, preload font files. Variable fonts reduce total weight for multiple weights.

Fix layout shifts (CLS)

Set explicit width/height on images and ads. Use CSS aspect-ratio. Reserve space for dynamic content. Avoid inserting content above existing content after load.

Page Speed and AI Search (GEO)

AI crawlers (GPTBot, ClaudeBot, PerplexityBot) also benefit from fast-loading pages. When AI systems crawl your content for citation in AI-generated answers, slower pages are more likely to time out or be deprioritized. A fast, well-structured page is more likely to be fully crawled and cited. Use our Uptime Checker to verify your site's response time and Robots.txt Tester to ensure AI crawlers aren't blocked.

Frequently Asked Questions

What is a good website load time?

Under 2.5 seconds for LCP is 'good' per Google. Under 1.8 seconds puts you in the top 25%. For e-commerce, every 100ms matters — Amazon found 1% revenue loss per 100ms delay. Aim for the fastest load time achievable, but prioritize LCP over total load time.

Does page speed affect SEO rankings?

Yes. Google confirmed Core Web Vitals (LCP, INP, CLS) are direct ranking signals. Slow pages also have higher bounce rates and lower engagement, which indirectly hurt rankings. The impact is most significant for mobile search.

What slows down websites the most?

In order: (1) Unoptimized images (50%+ of page weight), (2) Too much JavaScript (3rd-party scripts, large bundles), (3) No CDN or caching, (4) Slow server response time (TTFB), (5) Render-blocking CSS/JS. Fix images first for the biggest quick win.

How often should I test page speed?

After every deployment that changes HTML, CSS, JS, or images. Also monthly for monitoring. Set up Core Web Vitals monitoring in Google Search Console for continuous real-user data. Our Page Speed Checker provides instant Lighthouse scores for any URL.

Check your website's speed & SEO health

Our full website scan checks page speed, Core Web Vitals, SEO, GEO, security, and accessibility — free.

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