Question 1

What is the difference between a 301 Permanent Redirect and a 302 Temporary Redirect for SEO?

Accepted Answer

A 301 redirect passes 90% to 99% of PageRank link equity from the old URL to the new destination and instructs search engines to index the new URL permanently. A 302 redirect indicates a temporary move, meaning Google retains the old URL in its index and will not pass full link equity.

Question 2

Why are redirect chains harmful to crawl budget and Core Web Vitals?

Accepted Answer

A redirect chain (e.g. Page A -> Page B -> Page C) forces Googlebot and visitors to wait for multiple round-trip server requests. This inflates Time to First Byte (TTFB), slows Largest Contentful Paint (LCP), and causes Googlebot to abandon deep crawls.

Question 3

What are essential HTTP security headers for modern websites?

Accepted Answer

Key security headers include Strict-Transport-Security (HSTS) to enforce HTTPS connections, X-Frame-Options to prevent clickjacking, X-Content-Type-Options to block MIME-type sniffing, and Content-Security-Policy (CSP) to defend against cross-site scripting (XSS).

Question 4

How does server compression (Gzip or Brotli) affect SEO rankings?

Accepted Answer

Serving text assets (HTML, CSS, JavaScript) with Brotli or Gzip compression reduces payload sizes by up to 70%, dramatically speeding up page rendering and ensuring compliance with Google's Core Web Vitals speed thresholds.

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