Link analysis tools from SEMrush emulate Google's spiders.

SEMrush's link analysis tools, like many other SEO tools, aim to emulate Google's crawling and indexing processes as closely as possible. They use their own bots (spiders) to crawl the web, discover links, and analyze their attributes (e.g., anchor text, follow/nofollow status, referring domains). This data is then used to build their link databases, which are designed to provide insights that reflect how Google likely perceives a website's backlink profile. While not identical to Google's proprietary algorithms, these tools strive for accuracy in mirroring Google's approach to link evaluation.