How can an owner of "21mphofficial.blogspot.com" improve their blog's visibility and search engine ranking (SEO)?

To improve SEO, the owner should focus on creating high-quality, relevant content, using appropriate keywords in post titles and body, optimizing images with alt text, ensuring mobile-friendliness, building natural backlinks from other reputable sites, and promoting content on social media channels. Regularly updating content also helps signal activity to search engines.