SE Ranking vs SlapMyWeb: a suite and an audit
SE Ranking and SlapMyWeb overlap, but they are not the same kind of product. SE Ranking is an all-in-one SEO suite. Its center of gravity is rank tracking, surrounded by keyword research, competitor and backlink analysis, a crawl-based Website Audit, content tools and integrations with Google Analytics and Search Console. It is the kind of platform an SEO lives in every day. SlapMyWeb is built around the audit. You paste a URL and get 240+ checks scored into 8 weighted pillars, a plain-English verdict, a prioritized action plan and generated fix code for each issue. It does have keyword research, rank tracking and domain analytics on Pro and backlink analytics on Agency, powered by DataForSEO, but those are supporting tools with a smaller dataset than a dedicated suite. So the real question is what you need most: daily SEO operations across many keywords, or an audit that tells you what to fix and how.