Hey, What do you mean "SEO value"? Rankings or something else? If you want to track rankings or estimate traffic your SEO brings to your website, you can try services like Rankactive rank tracking software If you want to get some type of URL/domain metrics you can take a look for Moz/MajesticSEO/Ahrefs.
I guess he means tools, one that can be first choice is scrapebox -you can test there various parameters and do various jobs for seo.
Finding SEO value of a website can be done with the following tools Woorank, SEOSitecheckup, Moz tools For Backlinks fo with Ahrefs and Backlinkwatch
SEO value means, all metrics related to SEO,backlinks ,DA,ranking etc, any single tool to get all SEO metrics at one go.
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Best Search Engine Optimization (SEO) Tools Ahrefs: SEO Keyword Tool. ... Google Search Console: Top SEO Tool. ... SEMRush: Marketing SEO Tools. ... KWFinder: SEO Keyword Tool. ... Moz: SEO Software. ... Ubersuggest: Keyword Tracking Tool. ... Answer The Public: Free SEO Tools. ... SpyFu: Free SEO Tools.
The following are website quality and SEO tests that may provide valuable insights. Google Web.Dev (Google Lighthouse) https://web.dev/measure ThinkWithGoogle (AI) Speed Report testmysite.thinkwithgoogle.com Google Lighthouse Test https://developers.google.com/web/tools/lighthouse/ Google Mobile SEO https://search.google.com/test/mobile-friendly Web Inspector - Malware & Security Scan https://app.webinspector.com/public/tasks Moz Pro: Crawl Test https://moz.com/link-explorer Hubspot: Website SEO Grader https://website.grader.com/ Alexa Traffic Rank https://www.alexa.com/siteinfo DareBoost SEO Quality & Performance https://www.dareboost.com/en Nibbler Comprehensive SEO report http://nibbler.silktide.com/en_US UpCity SEO Report Card https://app.upcity.com/free-tools/seo-report-card WooRank Deep SEO analysis https://www.woorank.com/ Remove'em Backlink Removal https://www.removeem.com/anchor-text-ratios/ Pagelocity Performance & SEO Analysis https://pagelocity.com/