However, they're both content issues that would lower the quality of your pages and ultimately cause you to be taken less seriously by Google. 404 errors won't seriously negatively affect your search rankings, but may be an indication of a bigger problem, and could irritate your visitors. It's always a …

A crawler is a Search Engine bot or a Search Engine spider that travels all around the web looking out for new pages ready to be indexed. In this scenario, the web can be considered as an entire country and the spiders/bots of Google stop at every destination to …