They are called spiders, not because they are scary or creepy, but because they crawl all over websites throughout the Internet seeking out content. The only job a spider has is to enter into a website, and to read everything it can find, copy the information, and then take the information back to the search engine database to be filed away. The spider itself has very little to do with the ranking of a website, but the information it brings back to the search engine database is useful, and can increase the SEO each and every time it sends back information.
A spider will read the content of a website, page by page, and from the top left hand corner to the bottom right hand corner, just like a human being, and it records every single thing it reads. It will enter a website, and immediately look for a robot.txt file. If this file is not found, it will discard the webpage it was attempting to read, and will move on to another page, so having this file is crucial to getting information stored in a search engine database. The more relevant information the spider finds, and the more quality content that is stored in the search engine database, the higher the website will rank. If you want to find out more about SEO, you can call a dallas seo company.
A spider will follow every hyperlink it reads, and record the different websites it goes to. Having spiders record the incoming and outgoing links helps to increase SEO, which is why Webmasters are very happy to see spiders crawling around their websites.
The best way to get a spider to enter into a website is to frequently add fresh and original content. Each time a website is updated, spiders return to the website to record the new information. It is because of the return of spiders that so many articles suggest continuously adding content when attempting to boost SEO.
For the most part, spiders will find a website without any help. That being said, it is sometimes wise to submit the site to a few directories. Beware of submission software, though. They will increase the quantity of links, but it will not take into consideration the quality of links, so they will not count towards SEO.
Spiders crawling along the floor or wall of a bedroom might seem creepy and scary, but when they enter into a website, they become much more highly regarded. They are actually welcomed, rather than stepped on or squashed, so in the world of SEO, spiders are good.