Indexing is a process carried out by search engines to store and organize the information found on the Internet to make it faster and more accessible to users. . This means that if a website is not in the index of a search engine, users simply cannot find it.
First of all, you should know that search engines perform 3 main functions:
In the specific case of the Indexing process, when a web page or content is found by the search engine, it is added to a database called index, which includes all the URLs (or other forms of content, such as PDF files, images, videos, among others) with key data such as keywords, quality, meta tags and number of words that will serve to classify its content and display it in SERPs.
It is worth noting that search engines use different algorithms to index Internet content; for example, if you search for the word SEO in Google and Bing will show different pages with different positions in the results.
Among several of the most common reasons that exist for a search engine not to index URL content are:
Recommend reading: How to index your new pages via Google Search Console
When a website or content is created on the Internet, the main objective is that it is found, indexed, and classified by search engines so that it can be seen by as many users as possible.
Then, to help search engines make it easier to store and properly organize content in their index, you can do the following:
1.- Create a Site Map
A site map is nothing more than an XML document that is placed on a website's server to make a brief outline of the site's content, list the pages, and tell search engines when there are new pages and when they can revisit them to see new content and index it.
2.- Submit the Sitemap
After creating the Sitemap, a website must be sent to the various search engines to find it, crawl, index, and appear in the SERPs.
3.- Send the website's URL to search engines.
Submitting a website's URL can help search engines in the tracking process.
4.- Create profiles or update them on social networks.
One of the things that search engines use to index content is links. One practice for getting more links is to create social accounts and link them to a website.
This way, search engines will notice new content and crawl it faster.
You should share that link on your website. When you add the page link to a new social network profile, share it in an update on those networks. Even if the links are nofollow, search engines will still crawl your content.
5.- Creating external content
The most important thing to optimize the indexation of a website or content is through the use of links to external content; this is the key to appear in the first places of the SERPs.
More links to a website can be achieved by creating new quality external content such as writing on another blog in the same niche, participating in other social network profiles, doing computer graphics, creating marketing agreements with influencers, making use of broken or outdated links, among others.