So, have you ever thought How Google Works? You type few words on the Google search bar and your results are there in front of you with in a second. That’s amazing!! Isn’t it?
Google had developed complex algorithms which help them fetch this data in half a second. These algorithms are knows as Google spiders which crawl and index your site.
Let’s now understand, what goes in the background and understand the basics of what searching is all about and how Google crawling and indexing works.
What is Google Crawler?
Google uses software known as “Web-Crawlers” to discover webpages that are publicly available. The most famous web-crawler is called Googlebot.
What is Google Crawling?
Google crawling means, Google crawler visiting your webpages and following links on those pages, something similar to if you were to browse content over internet.
Google crawler follows your pages from link to link and hence crawl your website.
Crawler begins its crawling process with a list of web addresses from previous crawls, robots.txt and sitemaps, which you provide to Google. Hence robots .txt and sitemaps are very important and play a key role in SEO.
Using robots.txt you can include or exclude webpages, you want Google to crawl.
Crawler pays attention to new sites, pages, modified pages and dead links. Hence make sure that your website does not contain broken links.
What is Google Indexing?
Google indexing means Google crawling your website and storing the relevant information in their servers or adding your webpages into Google search.
Google gathers information from pages in the crawl process and creates an index on their servers so they can look things up later. This is very much similar to an index on the back of a book.
Google will not crawl your page if the meta tag is set to No-index. Hence make sure you set the meta tag equal to index to include your page in search results.
Google indexing considers many aspects of the pages like,
How many times a keyword is repeated in the page?
When the page was published?
Whether pages contain pictures and videos?
Hence it is very important that a proper keyword research is done before any blog is published, for better crawling and indexing of your webpages.
Google indexes millions of web pages daily. There are many factors which affect indexing and crawling of your site apart from the ones listed above about which you can read in our SEO blog.