The most basic SEO optimization methods, which are simple, practical, and essential. They particularly体现 (manifest) the long-tail effect. Recommended.
(Note: "体现" is translated as "manifest" here for better English flow. If you want to keep it literal, it can be "embodiment" or "reflection.")
For a more polished translation:
"The most fundamental SEO optimization techniques are simple, effective, and necessary. They especially highlight the long-tail effect. Highly recommended."