Tools for backlink and keyword research, competitor checks and finding web sources: mostly SEO suites, plus web-crawling tools for developers and some broader enterprise AI platforms.
Most tools here answer one question: who links to a site, and what does that mean for its search rankings? They crawl the web, build an index of backlinks and keywords, and let you compare your pages with a competitor's. Alongside them sit crawling and extraction tools for developers who want to collect web pages themselves.
Ahrefs is built around backlink analysis and keyword research. Ubersuggest covers keyword analysis, competitor insights and content ideas, which may be all a small site needs. Compare them on the same domain: the size of the link index, how often it refreshes and how much history it keeps matter more than the length of the feature list.
Developers who need to gather page content rather than audit a site should look at Firecrawl, which crawls the web and returns clean Markdown, HTML or JSON for RAG applications.