One of the things I really like about the field of SEO is how so many professionals are willing to help others in their free time. They volunteer to help non-profits, write blog posts for free (ahem!), and attend public SEO meet-ups.
If you ignore writing great, unique, and optimized text for <title> and <meta> description tags, you’re missing an invaluable opportunity to define the theme of the page for both human users and crawlers.
Same advice goes for <h1> tags and <img> alt text. The <title> and <meta> description are typically used in the search engine results pages (SERPs) list (<title> text being the blue-link text, and the <meta> description text serving as the descriptive snippet beneath the blue link text).
The <h1> serves as the on-page headline for the page, and the <img> alt text is where you can define the content of the image in text form (and aim to make the alt text relevant to the page instead of just a generic image description).
Best of all, the text in the tags <title>, <h1> and <img> alt text are valued by search engines as high quality sources for defining keywords for the page.
Bottom line: Write great content for human consumption, but think of your primary readers as humans who rely on using computer screen reader applications. If you write great text content for people that is readable by computers, you and your readers all win!
See on searchengineland.com