Which are the most important factors On-Page SEO?

[semidot]

Funny how everyone ignores server response time while chasing meta tag hаcks.

TTFB and hosting latency wreck your Core Web Vitals before content even matters. You can optimize alt text all day, but a slow, uncached, unoptimized server kills dwell time and tanks rankings regardless of your "on-page tricks."

[Exoticaleathers]

The most important on-page SEO factors include keyword optimization, high-quality content, title tags, meta descriptions, headings, URL structure, internal linking, and image optimization.
A fast, mobile-friendly website with clear structure and strong user experience also helps improve search visibility.