Screaming Frog SEO Spider is a software in Java language to get SEO information about your desired site. This program prepares complete reports about the site's SEO and saves it on the hard drive. According to the manufacturer: "We have built a leading security software that is trusted by thousands of SEO agencies around the world. We are a team of creative and professional people who focus on search engine marketing. Our marketers have brilliant successes in the field of SEO and paid campaigns of search engines in the field of branding and creative advertising, all of which are the basis for the creation of useful tools such as Seo Spider in the field of SEO. The user interface of this program is quiet, tidy and beautifully designed; However, its various parts may seem unfamiliar to you, and despite the use guide and FAQ section of the site, no ambiguity remains for you.

Features and features of Screaming Frog SEO Spider software:
Beautiful and quiet user interface
Displaying internal and external links with the possibility of filtering results
Show and report more details with graphs
Ability to use proxy server, create site map and save in xml format
And...
required system 
The minimum specification is a machine with at least 1GB of RAM. The SEO Spider is capable of crawling millions of URLs with the correct hardware, memory and storage. It is possible to save crawl data in RAM, or a database.

For crawls under 100-200k URLs a 64-bit OS and 8GB of RAM should be sufficient. However, to be able to crawl millions of URLs, an SSD and 16GB of RAM (or higher) is our recommended hardware