Backlinks remain a primary ranking signal for search engine algorithms. The Link Explorer gives you a transparent look at any website's link profile.
Evaluates the sub-domain against a checklist of features common to penalized or spammy sites. 2. Moz Keyword Explorer
| | Best For | Free Tier Details | | :--- | :--- | :--- | | Google Search Console | Core SEO health, performance monitoring, and keyword data from Google itself | Completely free – no limits | | Google Keyword Planner | Search volume and keyword ideas (requires active Google Ads account) | Free with any Google Ads account | | Ahrefs Webmaster Tools | Backlink analysis, site audits, and top pages | Free for verified site owners; limited data, but powerful | | Screaming Frog (Free Version) | Technical SEO crawling (crawl up to 500 URLs) | Permanently free with a crawler limit | | Ubersuggest (Lite) | Keyword research, domain overview, and content ideas | Free tier gives you limited daily searches | | SimilarWeb | Competitive traffic analysis and audience insights | Free tier gives you limited access to site traffic metrics | | SEO PowerSuite (Free) | Full SEO toolset (rank tracking, backlinks, audits) for one domain | Free forever for 1 domain; no major feature caps | moztool free
Similar to SEO Review Tools, Small SEO Tools has a dedicated "DA PA Checker."
View the Page Authority (PA) and Domain Authority (DA) of all search results in real time. Backlinks remain a primary ranking signal for search
In the late 2020s, a legend circulated among deep-web developers and digital archivists about a legendary piece of software known simply as MozTool Free
: A unique deep feature that analyzes how many "spammy" sites link to a domain, helping you avoid harmful associations. Link Explorer Link Explorer This public link is valid for
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With the free version of Moz’s Keyword Explorer, you can perform a limited number of searches per month. It provides critical data points such as: How many people are searching for a term.
Let’s say you refuse to pay for SEO software. Here is a step-by-step workflow to perform a professional audit using only the resources listed above.