When you type something into the search bar in the first place, it finds what pages exist on the web. Since there is no central registry of web pages on the Internet, it constantly adds them to its list. Google knows some pages that have already been crawled. The value attribute contains a string that represents the value contained in the search field.
A space is used to separate words or operators in a search query. In a simple query where no operators are used, spaces between words are considered implicit and, therefore, the search results will contain documents that contain all the words that have been entered. A Boolean search is a search that uses logic (that is, a problem with search forms is their accessibility; a common design practice is not to include a label for the search field (although there may be a magnifying glass icon or similar), since the purpose of a search form is usually quite obvious to sighted users due to location (this example shows a typical pattern). These techniques can be useful in certain cases, but you probably don't need to use them in most searches.
Most browsers also allow you to perform a web search directly from the address bar, although some have a separate search bar next to the address bar. Now that you know some tactics to ensure that search engine crawlers stay away from your unimportant content, let's look at optimizations that can help Googlebot find your important pages. Telling search engines how to crawl your site can give you better control of what ends up in the index. In addition, modern browsers also usually automatically store search terms entered previously in all domains, which then appear as autocomplete options when subsequent searches are performed in the search entries for that domain.
A search engine like Google has its own index of local business listings, from which it creates local search results. If the incremental option is not specified, the search event is only sent when the user explicitly initiates a search (for example, by pressing the Enter or Return key while editing the field). If you ask users to sign in, fill out forms, or answer surveys before accessing certain content, search engines won't see those protected pages. When search engines lacked the sophistication they have today, the term “10 blue links” was coined to describe the flat structure of the SERP.
Sometimes a search engine can find parts of your site by crawling, but other pages or sections may be hidden for one reason or another. The x-robots tag is used in the HTTP header of the URL, which provides more flexibility and functionality than meta tags if you want to block search engines on a large scale, since you can use regular expressions, block non-HTML files and apply noindex tags throughout the site. There's no reason not to target transactional queries with organic content, such as optimized product pages and local SEO strategies, but you should also consider using PPC to segment these search terms. To determine relevance, search engines use algorithms, a process or formula by which stored information is retrieved and ordered in a meaningful way.