What is web crawler?
A web crawler or a spider bot, is basically an algorithm, internet bot, or piece of code that crawls and visits web pages on the internet automatically. It’s a tool often used by search engines and they employ it for web indexing and priority scheduling for the search results.
But the same principle that runs this type of bot can come off really handy for the purposes of SEO analyzing and optimization. In fact, services such as screaming frog use these kinds of programs specifically as SEO tools.
Finding broken links
those famous 404 errors, they can really hurt your website. Finding and resolving them is really important.
Analyzing page titles and metadata
so handy in determining the ones that are too long, too short, or duplicated across the site.
the importance of XML sitemaps is obvious to anyone. Screaming frog has advanced configurations on URLs to include and other services on this front.
Visualizing site architecture
this one is a really cool service. It shows the website’s structure in a flexible, dynamic tree-graph representation. You understand your site and its inner workings so better with this feature and can manage it better.