Best SEO Tools in 2026

Semrush is a search-marketing platform covering keyword research, competitor analysis, rank tracking (Position Tracking), site audits, content optimisation and, increasingly, visibility in AI-generated answers. Adobe completed its acquisition of Semrush on 28 April 2026 and positions it as part of its customer-experience products, adding search, generative-engine and agentic-search optimisation tools to Adobe's portfolio.

Semrush's plans are built around websites monitored, keywords tracked and AI prompts. The SEO plan costs US$139 a month, or US$117.33 a month billed annually, for five websites and 500 daily-tracked keywords with keyword research, competitor insights, Position Tracking, Site Audit and MCP access. A US$199 plan adds AI-visibility prompt tracking, and a US$299 plan (US$248.17 billed annually) raises limits to 15 websites and 1,500 keywords with historical data, content optimisation, cannibalisation analysis and multi-location tracking. Custom plans add share of voice, API data integration and team users. A free account allows one demo project and ten reports a day. Semrush's breadth makes it the default single-subscription choice for many marketing teams; the cost rises quickly with extra users (from US$45 a month each) and add-ons, and its post-acquisition roadmap is now set within Adobe.

Ahrefs is an SEO software company headquartered in Singapore whose toolset includes Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, Content Explorer, GSC Insights and Brand Radar, a product that tracks brand visibility in AI search. The company states that it operates the world's second-most active web crawler and has more than ten years of data.

Its plans are Lite at US$129 a month, Standard at US$249 and Advanced at US$449, with an Enterprise tier above. Lite includes one user, five non-verified projects (unlimited verified), six months of history, 750 tracked keywords and 150 checks on AI prompts; Standard extends history to two years and allows 2,000 tracked keywords, 300 AI-prompt checks and 500,000 crawl credits, with up to two additional users at US$40 a month each. Sales tax is added separately. Ahrefs is chosen mainly for link research and competitive analysis, where its crawler gives it a large backlink index. Its constraints are a per-user pricing model, the absence of a permanent free tier on the pricing page and history limits on the entry plan that restrict trend analysis.

Google Search Console is a free service offered by Google that helps site owners monitor and troubleshoot how their site appears in Google Search. Unlike the third-party tools in this list, which estimate data from their own crawlers and keyword panels, Search Console reports first-party data from Google about the verified site.

Its Performance reports show which queries bring users to the site, with impressions, clicks and average position. Owners can submit sitemaps and individual URLs for crawling, review index coverage, and receive email alerts when Google identifies issues, then mark them as fixed. The URL Inspection tool shows crawl, index and serving information for a page directly from the Google index, and dedicated reports cover Core Web Vitals on mobile and desktop, rich results from structured data and AMP pages. Search Console is essential for every site because no other tool sees Google's own indexing decisions. Its limitations are equally clear: it shows only the owner's own site, provides no competitor, backlink-prospecting or keyword-volume research, covers only Google, and its query data is aggregated rather than a fixed daily rank check, so most teams pair it with a commercial suite.

SE Ranking is an SEO platform operating since 2013 that says more than a million businesses, agencies and SEO specialists have used it. It covers rank tracking, website audits, keyword research, competitor analysis, AI-search visibility, content marketing and local marketing, with an agency pack for white-label reporting and an MCP server for AI assistants.

Core costs US$129 a month or US$103.20 billed annually, including 10 projects, one manager seat, 2,000 keywords tracked daily, 250,000 pages audited a month and 25,000 API credits; Growth costs US$279 a month or US$223.20 annually with 30 projects, three manager seats, 5,000 tracked keywords and 2 million audited pages. Enterprise is custom, annual subscriptions include free migration and save 20%, and a 14-day trial needs no credit card. SE Ranking offers more tracked keywords and audit capacity per dollar than Semrush or Ahrefs at entry level, which makes it popular with small agencies. Multiple manager seats require the higher plan, and API capacity is metered in credits.

Moz Pro is the SEO suite from Moz, founded in 2004 by Rand Fishkin and Gillian Muessig as SEOmoz, a blog and community where early SEO practitioners shared research. Moz was later acquired by iContact, a subsidiary of Ziff Davis. Moz Pro combines keyword research, rank tracking, site crawling, link research and newer AI-search and generative-engine optimisation features.

Standard costs US$99 a month, or US$79 a month on yearly billing, with one user, three tracked sites, 300 tracked keywords and 400,000 pages crawled a month; Medium costs US$179 (US$143 yearly) with two users and adds AI-search and GEO tools and more AI content briefs; Large costs US$299 (US$239 yearly) with three users. Yearly billing saves 20%. Moz's educational resources and community remain a strength, and its tools are approachable for small in-house teams. The suite's quotas are modest for the price, AI features begin on the Medium plan, and agencies with large keyword sets are steered to STAT, Moz's separate enterprise rank tracker.

The Screaming Frog SEO Spider is a desktop website crawler made by Screaming Frog, a UK search-marketing agency founded in 2010 and based in Henley-on-Thames, Oxfordshire. It crawls a site the way a search engine does and reports technical issues, and is used for technical SEO audits.

The free version crawls up to 500 URLs and finds broken links, errors and redirects, analyses page titles and meta data, reviews meta robots directives, audits hreflang attributes, discovers exact duplicates, generates XML sitemaps and produces site visualisations. A paid licence removes the 500-URL limit and unlocks crawl configuration, scheduling, saving crawls, crawling password-protected sites, JavaScript rendering, crawl comparison, near-duplicate content detection and semantic analysis. A licence costs £199 per user per year, falling to £189, £179 and £169 for 5–9, 10–19 and 20+ licences. Licences are per user. The SEO Spider runs on the user's own computer, so very large sites depend on available memory and storage, and it provides no keyword, backlink or rank data on its own; it is usually combined with a suite and with Search Console.

Sitebulb is a website auditing tool available as desktop software and as a cloud service. Like Screaming Frog, it crawls a site to find technical issues, but it emphasises prioritised recommendations and visual reports aimed at explaining problems to clients and developers.

Desktop Lite allows one user and audits of up to 10,000 URLs; Desktop Pro allows audits of 500,000 URLs, which the company says can be raised towards 2 million depending on the machine, with extra users from £7 a month. Yearly billing saves 15% on desktop plans. Sitebulb Cloud, for teams of two or more users with no project limits, starts from £95 a month and, according to the company, can exceed £20,000 a year for large teams with heavy crawling. Sitebulb also lists MCP access so audits can be queried from AI assistants. A 14-day free trial is offered. Desktop prices were not rendered on the captured pricing page and are omitted here. Sitebulb's reporting is more presentation-ready than most crawlers; as a pure auditing tool it has no keyword research, rank tracking or backlink data.

Surfer is a content optimisation platform whose former surferseo.com address now redirects to surfer.ai. It analyses top-ranking pages for a query and scores drafts against them, and it has expanded into tracking brand visibility in ChatGPT, Gemini, Google AI Overviews and other AI models.

Prices on annual billing are: Discovery US$49 a month with 120 documents and 10 tracked pages; Standard US$99 with 360 documents, 50 pages and 25 AI prompts refreshed weekly; Pro US$182 with 200 pages and 50 prompts refreshed daily; and Peace of Mind US$299 with unlimited documents under a fair-use policy, 500 pages, 100 daily prompts and API access. A separate AI Search Analytics plan at US$82 a month annually tracks 50 AI prompts daily. Higher plans add plagiarism checking, rank-drop detection, team collaboration and a cannibalisation report, and Surfer lists MCP access. Free tools include an AI visibility audit, a volatility tracker and a Chrome extension. Surfer is a writing and on-page tool; it does not replace a suite for backlink research or technical crawling.

Clearscope is a content optimisation platform used by editorial and content-marketing teams to plan, draft and monitor articles against search intent and, more recently, AI-search visibility. It describes its pricing as transparent, with no contracts and no hidden costs, and offers a 14-day free trial.

Essentials costs US$129 a month and includes 50 tracked queries, 50 tracked pages, 20 discoveries and 20 drafts a month. Business costs US$399 a month and raises limits to 300 tracked queries, 300 pages and 50 discoveries a month, with a dedicated account manager; Enterprise is custom. Extra capacity is sold in blocks: additional tracked queries cost from US$6.50 to US$5.50 a month each depending on volume, extra pages from US$25 to US$15 a month per block, and extra drafts from US$50 to US$20. Clearscope is narrower than Surfer, focusing on editorial quality and content monitoring rather than broad SEO, and its entry price is higher than most content tools in this list for a small allowance, which suits established content teams more than solo bloggers.

Yoast SEO is a WordPress plugin for on-page SEO made by Yoast, a company founded in 2010 by Joost de Valk and based in Wijchen, the Netherlands, where around 70 of its roughly 110 staff work. Yoast's history page records that the company joined Newfold Digital. The plugin works inside the WordPress editor, helping authors write titles and meta descriptions, manage internal links and publish structured data about the site.

The free plugin covers core on-page needs, while Yoast SEO Premium costs US$118.80 a year excluding VAT and adds AI-driven suggestions, including AI-drafted metadata, and features for readiness for AI assistants. One subscription covers one site or domain, and additional team members cost US$5 a month each excluding VAT. Because it works inside the content management system, Yoast fixes issues at the point of publication rather than reporting them afterwards, which complements crawler and suite tools. It is limited to WordPress, provides no keyword-volume, backlink or rank data, and its content scores are heuristics rather than ranking guarantees.

Serpstat is an SEO platform offering keyword research, site analysis, rank tracking, site audit and backlink analysis in a single subscription priced below most suites. It targets freelancers, beginners and smaller agencies that want suite functions without paying Semrush or Ahrefs prices.

Individual costs US$50 a month and includes five projects, 100 searches a day across sites, keywords and links, 10,000 keyword position checks, 30,000 pages to audit and 50,000 export rows. Team costs US$100 a month with unlimited projects, 500 searches a day and 50,000 position checks; a Team x2 tier and larger plans are also listed. Annual billing saves up to 27%, and a free trial is offered. The daily search limits are the main constraint: heavy research sessions can exhaust 100 searches, and rank tracking is metered in position checks, so daily tracking consumes quota quickly. Buyers should check database coverage for their target countries during the trial.

Seobility is an SEO platform operated by Seobility GmbH of Nuremberg, Germany, offering website audits, ranking monitoring, backlink monitoring, competitor analysis, keyword research and content tools, plus AI-visibility tracking and an MCP connection for AI assistants, both labelled beta. It is aimed at small and mid-sized businesses, agencies and freelancers, and is one of the few suites with a permanent free tier.

The free Basic account requires no credit card and includes one website project, 10 tracked keywords, five daily tool credits, a limited website audit of 100 pages per crawl and tracking of three AI prompts. Premium costs €59.90 a month (or €575.04 a year, a 20% saving) and is presented as the plan for small and mid-sized businesses; Professional costs €99.90 a month (€959.04 a year) for businesses with several websites; and Agency costs €209.90 a month (€2,015.04 a year) for large sites and agencies. Paid plans begin with a 14-day free trial, prices exclude VAT, and extra keywords can be added in blocks of 100. Seobility's audit tooling is its strongest module; euro billing suits European buyers in particular.