Users will occasionally come to a page that doesn't exist on your site, either by following a broken link or typing in the wrong URL. Having a custom 404 page30 that kindly guides users back to a working page on your site can greatly improve a user's experience. Your 404 page should probably have a link back to your root page and could also provide links to popular or related content on your site. You can use Google Search Console to find the sources of URLs causing "not found" errors31.
Structured data21 is code that you can add to your sites' pages to describe your content to search engines, so they can better understand what's on your pages. Search engines can use this understanding to display your content in useful (and eye-catching!) ways in search results. That, in turn, can help you attract just the right kind of customers for your business.
Hi there, am interested to try your trick in Wikipedia, but am also not sure of how should I do tht, coz i read some posts saying tht “Please note that Wikipedia hates spams, so don’t spam them; if you do, they can block your IP and/or website URL, check their blocking policy and if they blacklist you, you can be sure that Google may know about it.”