This list is curated by GuestPosts.biz

1. Semrush — Competitor research, keyword research, site audit, content tools and PPC insights. Best for marketing teams. Paid — AI features.
2. Ahrefs — Market-leading backlink index, keyword research, site explorer. Best for backlink & competitor analysis. Paid.
3. Moz Pro — Keyword tracking, on-page recommendations, local features. Good for mid-size teams and beginners. Paid (trial).
4. SE Ranking — Affordable all-in-one with strong rank tracking and AI audit suggestions. Good for SMBs and agencies. Paid — AI features.
5. Serpstat — Growing all-in-one that balances price and features for keyword/competitor work. Paid.
6. Surfer SEO — Content editor tied to SERP-based recommendations (content score). Great for data-driven content teams. Paid — AI-enabled.
7. Clearscope — Content relevance scoring, used by editorial teams. Paid — AI-enabled.
8. MarketMuse — Topic modeling and content planning at scale. Ideal for enterprise content strategy. Paid — AI-enabled.
9. Frase — Research + content brief generator + editor. Good for small teams and freelancers. Paid — AI-enabled.
10. Outranking — Workflow for research, outlines and AI drafts tuned for SEO. Paid — AI-enabled.
11. Jasper (AI writing) — AI assistant used with Surfer/Clearscope for draft generation. Paid — AI-enabled.
12. Scalenut — Topic research, content briefs and AI writing. Paid — AI-enabled.
13. RankIQ / Rank Prompt — Tools focused on low-competition keyword discovery and AI content briefs. Paid — AI-enabled.
14. Screaming Frog SEO Spider — Desktop crawler for site audits (canonical, redirects, meta, Hreflang). Must-have for technical SEO. Paid/Free (limited).
15. DeepCrawl / OnCrawl — Enterprise crawlers for large sites and server-side issues. Paid.
16. Sitebulb — Visual audits and prioritized recommendations for tech SEO. Paid.
17. Botify — Enterprise crawling & log analysis with advanced insights. Paid.
18. Netpeak Spider — Windows crawler for fast technical site checks. Paid.
19. Google PageSpeed Insights / Lighthouse — Labs + field data for speed and Core Web Vitals. Free. (Essential).
20. GTmetrix — Performance testing with waterfall and recommendations. Free/Paid.
21. WebPageTest — Advanced page performance, filmstrip and real device testing. Free.
22. AccuRanker — Fast, accurate rank tracking at scale. Paid.
23. Rank Ranger — Rank tracking with extensive reporting dashboards. Paid.
24. Pro Rank Tracker — Affordable tracking for agencies and freelancers. Paid.
25. Majestic — Link-index focused on Trust Flow / Citation Flow metrics. Paid.
26. LinkResearchTools (LRT) — Powerful link risk analysis and recovery. Paid.
27. BuzzSumo — Content & backlink discovery, trending content analysis. Paid.
28. Google Keyword Planner — Ad/keyword volumes (within Google Ads). Free (with Ads account).
29. AnswerThePublic — Visual question & phrase ideas from search queries. Free/Paid.
30. Ubersuggest (Neil Patel) — Keyword ideas and content suggestions for beginners. Free/Paid.
31. io — Suggests keyword variations for Google/YT/Amazon. Paid.
32. Mangools (KWFinder, SERPChecker) — Easy keyword research with reasonable pricing. Paid.
33. BrightLocal — Local rank tracking, citation building and reputation management. Paid.
34. Whitespark — Citation services, local rank tracking and reputation features. Paid.
35. Yext — Listings management at scale for enterprises. Paid.
36. Yoast SEO — Popular WP plugin for on-page guidance and sitemaps. Free/Paid.
37. Rank Math — Feature-rich WP SEO plugin with integrated schema. Free/Paid.
38. Google Search Console — Direct reporting from Google about indexing and performance. Free (essential).
39. ai – AI Agent for creating SEO optimised content.
40. SimilarWeb — Traffic intelligence and competitor benchmarking. Paid.
41. Sistrix — European market strength; visibility index and SERP features. Paid.
42. SEO PowerSuite — Desktop toolset (Rank Tracker, Website Auditor, LinkAssistant). Paid.
43. Raven Tools — Reporting, audits and integrations for agencies. Paid.
44. CognitiveSEO — Link analysis + content visibility tools. Paid.
45. Detailed SEO (Chrome extension) — Quick on-page checks in the browser. Free.
46. Perplexity / Perplexity for SEO — LLM search & research assistant: fast insight generation and SERP interpretation. Freemium/Paid — AI core.
47. Alli AI (Alli) — Automated on-page fixes & recommendations (SEO automation). Paid — AI-enabled.
48. Rank Prompt / Rankscale / Rankscale.ai — AI tools that create optimized content prompts and track results. Paid — AI-enabled.
49. Profound / Goodie / Peec AI / Eldil AI — Specialist AI SEO tools that offer LLM-tuned content optimization, prompt engineering for AEO/LLM SEO (varies by vendor). Paid — AI-enabled.
50. Adobe LLM Optimizer / Adobe AI agents for site optimization — Adobe’s AI agents help with site optimization and content personalization (enterprise). Paid — AI-enabled.

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