SEO attracts myths because it changes constantly. Here are the ones that cost people the most time.
The myths
1. "Meta keywords matter." They have been ignored for years. Skip them.
2. "More words = better rankings." Length is not a ranking factor; completeness is.
3. "Duplicate content = a penalty." Duplicates dilute and confuse, but there is no automatic penalty.
4. "You must post every day." Consistency beats frequency.
5. "Backlinks are dead." They still matter; their weight has just shifted toward relevance and quality.
6. "Keyword density is a target." Write naturally; stuffing hurts.
7. "Disallow in robots.txt removes a page from Google." It only stops crawling. Use noindex to remove.
8. "Page speed is everything." It matters, but content and links matter more.
9. "SEO is a one-time job." It is ongoing maintenance and iteration.
10. "Domain age guarantees ranking." Age correlates, it does not cause.
11. "One page can rank for everything." One keyword (or tight cluster) per page.
12. "Rankings happen overnight." Expect weeks to months.
What to do instead
Focus on the fundamentals: useful content, clear structure, sound technical SEO and a few real links. Verify claims rather than repeating them — for example, check what a page actually tells search engines with the on-page audit or the robots.txt generator.