Performance & SEO

export async function generateMetadata({ params }): Promise<Metadata> {
  const post = await getPost(params.slug);
  
  return {
    title: post.title,
    description: post.excerpt,
    openGraph: {
      title: post.title,
      description: post.excerpt,
      images: [post.featuredImage],
      type: 'article',
    },
    twitter: {
      card: 'summary_large_image',
      title: post.title,
      description: post.excerpt,
      images: [post.featuredImage],
    },
  };
}

import Image from 'next/image';

const OptimizedImage = ({ src, alt, width, height }) => {
  return (
    <Image
      src={src}
      alt={alt}
      width={width}
      height={height}
      placeholder="blur"
      blurDataURL="data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAABAAEDASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAv/xAAUEAEAAAAAAAAAAAAAAAAAAAAA/8QAFQEBAQAAAAAAAAAAAAAAAAAAAAX/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwCdABmX/9k="
      priority={true}
      className="rounded-lg"
    />
  );
};

import { getCLS, getFID, getFCP, getLCP, getTTFB } from 'web-vitals';

function sendToAnalytics(metric) {
  const body = JSON.stringify(metric);
  const url = '/analytics';

  if (navigator.sendBeacon) {
    navigator.sendBeacon(url, body);
  } else {
    fetch(url, { body, method: 'POST', keepalive: true });
  }
}

getCLS(sendToAnalytics);
getFID(sendToAnalytics);
getFCP(sendToAnalytics);
getLCP(sendToAnalytics);
getTTFB(sendToAnalytics);