
Ahrefs
FreemiumAI Marketing Platform Powered by Big Data to Dominate Search and AI Visibility
You need to know whether to start with a free check or pay for ongoing assistance. Google Search Console costs $0 per month and monitors your site issues directly. Frase costs $38 per month for its Starter plan and guides your writing. If you only need to fix technical site errors, start with Google Search Console. If you need immediate writing help, pick Frase.
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AI Marketing Platform Powered by Big Data to Dominate Search and AI Visibility

Measure, monitor, and optimize your website's presence in Google Search results.

AI-powered platform to create SEO and AI search optimized content that ranks higher and gets cited by AI 10x faster.
The only marketing tool you'll ever need to own your brand’s visibility everywhere it counts.

Win the SEO game with AI-powered keyword research and competitor analysis.

Website and AI visibility checks for site owners, freelancers, SEOs, developers and agencies.

Comprehensive SEO and content marketing platform to analyze competitors, optimize websites, and boost search rankings.
A Windows desktop application for website SEO crawling, auditing, and generative search optimization.

Surfer is an AI-driven SEO content optimization platform designed to improve organic search visibility and content performance.

Industry-leading website crawler for comprehensive technical SEO audits on Windows, macOS, and Linux.


AI Powered Onpage SEO Optimization Tool & Content Generator
The guide below helps you choose between Ubersuggest and Serpstat for Keyword Research and SEO Audit tasks. It also shows when Moz fits your budget better than other options.
Google Search Console costs $0 per month and shows direct issue alerts for your site.
If you run a regular website and want ongoing error alerts without paying, pick Google Search Console. If you need to trace broken links across a smaller catalog under 500 pages, pick Screaming Frog SEO Spider.
Ubersuggest provides a free plan at $0 per month along with lifetime payment options.
If you need basic word suggestions without recurring charges, pick Ubersuggest. If you manage client work across multiple regional markets, pay for Serpstat.
Frase costs $38 per month for its Starter plan and focuses on writing assistance.
Google Search Console is the only completely free option here at $0 per month.
It provides direct performance reports and issue alerts without any subscription fee.
Pick Google Search Console if you want core site monitoring on a zero dollar budget.
SEO Co-Pilot automates on-page updates, meaning it adjusts text and keywords directly on your web pages, and costs $49 per month for its Professional plan after a 7-day free trial.
Serpstat costs $50 per month on its Individual plan and requires you to update pages yourself.
Pick SEO Co-Pilot if you want the tool to write and place keywords on your pages automatically.
The paid version of Screaming Frog SEO Spider costs £199 per year and removes the 500 URL limit found in the £0 free tier.
It also adds integrations, which connect the crawler directly to services like Google Search Console and PageSpeed Insights to pull in extra data.
Pick the paid version if your site has more than 500 pages to inspect.
Ubersuggest is the cheapest option for Competitor SEO Research, which shows what rival websites rank for, because it includes a $0 free plan.
Frase and Serpstat both require paid plans, starting at $38 per month and $50 per month.
Pick Ubersuggest if you need competitor data without a monthly fee.