To enumerate, Search Engine is software, usually accessed on the Internet, that searches a database of information according to the website user query through the search results page. The engine provides a list of results that best match what the user is trying to find. Today, there are many different search engines available on the Internet, each with its own abilities and features.
Yandex is a Russian multinational corporation specializing in Internet-related products and services. Including transportation, search, and information services. As well as eCommerce, navigation, mobile applications, and online advertising. In total, Yandex provides over 70 service solutions. The Yandex search engine has Yandex Webmaster Tools similar to Google Search Console (previously known as Google Webmaster Tools).
The Ahrefs Webmaster Tools is refreshingly simple to use. The navigation is intuitive with data pretty much exactly where you would expect it to be. Data is seemingly no more than one to two clicks away. It allows you to improve your website’s SEO performance and get more traffic from searches, plus it's also free for webmasters and website owners alike.
Search engine optimization (SEO) is a marketing discipline focused on growing organic visibility (non-paid) search engine results. Additionally, it is the process of improving the position that your website appears in the "organic" search results. For example, returned by sites such as Google, Yandex, Bing, Yahoo, etc.
DuckDuckGo is an internet search engine that emphasizes protecting searchers' privacy and avoiding the filter bubble of personalized keywords search results. It distinguishes itself from other search engines by not profiling its users. And by showing all users the same search results for a given search term.