SEO Engine Performance & Tuning 2

Question 1

Which Core Web Vital measures the time from when a user first interacts with a page to when the browser responds to that interaction?

Accepted Answer

Interaction to Next Paint (INP)

Answer

INP replaced FID as a Core Web Vital in 2024, measuring responsiveness from interaction to the next visual update.

Question 2

A website scores 0.35 on Cumulative Layout Shift. How does Google classify this score?

Accepted Answer

Poor

Answer

CLS scores above 0.25 are classified as Poor; Good is below 0.1 and Needs Improvement is 0.1–0.25.

Question 3

Which HTTP header instructs the browser to cache a resource for a specific duration without revalidating?

Accepted Answer

Cache-Control: max-age

Answer

Cache-Control: max-age directs the browser to cache a resource for the specified number of seconds without server revalidation.

Question 4

What is the primary SEO benefit of implementing HTTP/2 on a web server?

Accepted Answer

Allows multiplexing multiple requests over a single connection

Answer

HTTP/2 multiplexing allows multiple requests and responses to travel over one TCP connection simultaneously, reducing latency.

Question 5

Which image format typically provides the best compression for photographic web images while maintaining SEO-friendly file sizes in modern browsers?

Accepted Answer

WebP

Answer

WebP provides 25–35% better compression than JPEG/PNG for photographs while supporting both lossy and lossless modes.

SEO Practice Test