Resources

A curated, open-source collection of 209 SEO tools and resources. Contributions welcome on GitHub.

Last updated 21 Feb 2026 by Suganthan Mohanadasan · commit history

All in One SEO Suites (11)

Ahrefs — Backlink indexing, keyword research, site auditing, rank tracking, and content exploration
Semrush — Keyword research, competitive analysis, site auditing, rank tracking, and advertising insights
Moz Pro — Domain Authority metric, keyword research, crawling, rank tracking, and educational resources
SE Ranking — Agency-focused tracking, auditing, backlink analysis, and AI visibility tracking
Serpstat — Affordable keyword research, backlink analysis, site auditing, and rank tracking
Morningscore — Gamified SEO translating organic traffic to dollar values with GEO scoring
Mangools — Five bundled tools: KWFinder, SERPChecker, SERPWatcher, LinkMiner, SiteProfiler
Seobility — Technical crawler with keywords, rank tracking, and backlink monitoring
Search Atlas — AI-powered platform with 60+ tools and OTTO SEO agent for automated fixes
Dragon Metrics — Global and multilingual SEO tracking across 11 search engines including Baidu and Naver
Marketing Miner — Bulk SEO and AI tool analyzing up to 100,000 keywords or URLs with 40+ SEO tools

Keyword Research and Analysis (13)

Ahrefs Keywords Explorer — Keyword clustering by parent topic, difficulty, volume, click data, and SERP features
Semrush Keyword Magic Tool — Search volume, difficulty, intent, CPC, and related keywords in one view
KeywordTool.io — Long-tail keyword suggestions from Google, YouTube, Bing, Amazon, and App Store
Ubersuggest — Keyword suggestions with visualisation maps for related keywords
AnswerThePublic — Visualizes search questions and autocomplete suggestions for content ideation
Also Asked — Maps People Also Ask questions into visual tree showing query branches
Google Keyword Planner — Free authoritative volume data source within Google Ads
Keywords Everywhere — Browser extension overlaying volume, CPC, and competition on search results
Exploding Topics — Identifies trending topics before they go mainstream
Google Trends — Compare keyword interest over time and regions for seasonality and trends
Keyword Monkey — AI-powered keyword research generating ideas and clusters with volume and difficulty
Keywords in Sheets — Google Sheets integration for keyword data directly in spreadsheets
ContentSage — B2B keyword research and enterprise content strategy platform

Keyword Clustering and Topical Authority (9)

Keyword Insights — Groups keywords by SERP similarity and intent using AI with topical maps and content briefs
Cluster AI — Analyzes SERP overlap to group keywords logically
KeyClusters — Groups keywords by analyzing top-ranking URLs and identifies hub pages
SE Ranking Keyword Grouper — Built-in keyword clustering based on SERP similarity
Surfer Topical Map — Topic cluster suggestions for topical authority with internal linking recommendations
LowFruits — Low-competition keywords with bulk SERP analysis and semantic clustering
Keyword Cupid — Visualizes keyword relationships by analyzing real Google results
CanniWizard — Finds keyword cannibalization issues via linked Google Search Console
Free AI Keyword Clustering Tool — Free automated keyword grouping and clustering tool

Content Optimisation and Writing (14)

Surfer SEO — Analyzes top-ranking pages and scores content in real-time for keyword density and structure
Clearscope — Premium content optimization for enterprise with Docs and WordPress integration
Frase — AI platform for research, writing, and optimization with SERP analysis and briefs
MarketMuse — Enterprise content intelligence for auditing sites, finding gaps, and planning clusters
Page Optimizer Pro — Analyzes LSI relationships beyond basic keyword matching
NeuronWriter — Combines NLP with SERP data for scoring, competitor analysis, and AI writing
Dashword — Analyzes SERP competitors and builds content briefs with term recommendations
Outranking.io — AI content strategy mixing SERP analysis, topic clustering, and optimization
Rankability — Content optimization with Content Monitor for identifying content to refresh
SearchAttention — Optimizes content for AI search engines like Google AI Overviews and Perplexity
KoalaWriter — AI SEO writing generating long-form articles with real-time SERP data
Penfriend AI — Learns writing style and generates SEO-optimized drafts matching brand voice
Outrank — Automated content generation with keyword research and SERP analysis
Leaps — Research and fact-checking before generating content to avoid AI slop

Technical SEO and Site Auditing (14)

Screaming Frog SEO Spider — Industry-standard desktop crawler for broken links, metadata, and sitemaps
Sitebulb — Desktop crawler with visual reporting and prioritized hints
SiteAnalyzer — Desktop crawler for fast and efficient technical audits
Lumar — Enterprise cloud-based crawler with JavaScript rendering and analytics integrations
ContentKing — Real-time monitoring with continuous auditing and change alerts
Oncrawl — Crawl data combined with log analysis and Search Console integration
Ryte — Website quality management for technical auditing, content, and search performance
Siteliner — Free tool for duplicate content, broken links, and page power distribution
LittleWarden — Monitors broken links, SSL certificates, and domain expiry with alerts
Tag Parrot — Submits pages to Google Indexing API for faster crawling and discovery
URL Monitor — Tracks page indexing status and alerts if pages get deindexed
RalfyIndex — Bulk indexing service with credit-based pricing
Indexing Insight — Enterprise index monitoring for up to 1M pages daily
SEM Samurai — Bulk 301-redirect mapping for site migrations

Rank Tracking (6)

AccuRanker — Fast rank tracker with on-demand updates, SERP features, and share of voice
Advanced Web Ranking — White-label reporting with deep SERP data and competitive analysis
Nozzle — Captures full SERP pages and tracks all features including AI overviews
SERPWatcher — Simple rank tracker with dominance index for overall ranking performance
Nightwatch — Local and global tracking with competitor monitoring and automated reporting
Wincher — Affordable daily rank tracker with GSC integration and competitor tracking

Backlink Analysis (4)

Ahrefs Site Explorer — Largest backlink database for referring domains, anchor text, and link velocity
Majestic — Trust Flow and Citation Flow metrics with the largest historical database
Moz Link Explorer — Domain and Page Authority scores with spam assessment
OpenLinkProfiler — Free backlink checker with freshness, categorization, and anchor text analysis

Outreach and Link Building (10)

BuzzStream — Outreach CRM for managing relationships and tracking campaigns
Pitchbox — Outreach automation for link building and digital PR
Hunter.io — Email finder for contact details with CRM integration
HARO — Connects journalists with expert sources for high-authority backlinks
Ranking Raccoon — Verified link exchange community across 54 industries
LinkDR — AI-powered link building automating prospecting and outreach
Loganix — White-label marketplace with 5,000+ vetted publishers
PressWhizz — Link building marketplace with competitor intel and keyword search
Authority Builders — Guest posts, niche edits, and HARO managed service
WhitePress — International marketplace with 130,000+ publishers across 34 languages

Internal Linking (7)

Link Whisper — WordPress plugin for AI link suggestions, orphan detection, and click tracking
LinkBoss — Semantic similarity analysis with NLP-friendly anchor text generation
LinkStorm — Semantic analysis with GSC integration and one-click link insertion
InLinks — Entity-based linking, schema markup, and NLP for content relationships
SEOJuice — Automates internal linking, meta descriptions, alt text, and schema
Twylu — Internal Authority Score with task management and multi-project support
AIOSEO Link Assistant — Part of All in One SEO plugin for discovering and managing internal links

Local SEO (6)

BrightLocal — Agency-focused rank tracking, citation building, and reputation management
Whitespark — Citation Finder, GBP audit, and local rank tracker
Google Business Profile — Free tool for managing business appearance in Search and Maps
Yext — Enterprise listings management syncing across directories and voice assistants
Moz Local — Business data to major directories for consistent listings
myPresences — Manage listings and reviews on 3,000+ services with AI visibility

LLM Visibility Tracking (14)

Decipher — Topical authority maps with auto-linking content
Otterly AI — Tracks Google AI Overviews, ChatGPT, Perplexity, Gemini, and Copilot
Profound — Enterprise GEO platform backed by Sequoia for 10+ AI platforms
Peec AI — Multi-language and geography intelligence for brand mentions and sentiment
Writesonic GEO — AI visibility tracking with content creation and Cloudflare integration
Scrunch AI — Tracks brand representation across AI systems and flags inaccuracies
ZipTie — Captures AI Overview text with screenshots and content optimization
Rankscale — GEO analytics with usage-based pricing and AI readiness scoring
AthenaHQ — Content optimization for AI search by ex-Google and DeepMind engineers
Gauge — Monitors brand mentions, citations, and sentiment across AI platforms
Am I On AI — Simple tool checking brand presence in AI search results
Query Fan Out — Analyzes query reformulation and brand coverage across AI responses
Waikay — Analyzes brand presence in ChatGPT, Gemini, Claude, and Perplexity
RadarKit — Monitors AI platforms via real browser prompting

AI SEO Tools (27)

AI Rank — AI visibility tracking across chat sessions by DEJAN
AI Flux — Dashboard tracking daily AI ranking volatility
Algoroo — Algorithm tracking monitoring keyword sets for SERP flux
Tree Walker — Brand perception analysis showing entropy in model completions
Brand Relevance — Tests website relevance for queries across Google AI systems
Citation Mining — Mines citations from Google and OpenAI responses
AI Search Snippet Generator — Generates LLM-powered grounding snippets from page content
AI Search Snippet Extractor — Shows which page content Google AI uses for answering queries
Bot Tester — Tests URL accessibility to search engines, AI crawlers, and web bots
Query Deserves Grounding (Google) — Predicts which queries trigger grounding in Google AI responses
Query Deserves Grounding (OpenAI) — Determines query grounding triggers in ChatGPT
LinkBERT — Link prediction model predicting natural placement in text
Penguin — AI link optimization suggesting optimal anchor text
Chunk Norris — Content chunking showing segmentation for AI retrieval
Google Entity Search — Checks entity recognition in Google Knowledge Graph
Google Brand and Intent Detection — Shows Google's intent classification for queries
Brand AI Sentiment — Mines synthetic reviews for AI brand perception
Content Substance Classifier — Estimates thin content likelihood using deep learning
Auxy — Discovers keyword opportunities from GSC data
Dejan Authority Score — Domain authority scoring from PageRank and Harmonic Centrality
Query Fanout Generator — Generates related query sets and shows AI expansion patterns
Semantic Content Compressor — Five-level semantic compression showing content distillation
QueryBurst — RAG optimization showing AI-selected representative chunks
AI Content Detection — Sentence-level AI detection with document scoring
Qforia — Free query fan-out showing content format needs per query
CC Rank Checker — Free PageRank and Harmonic Centrality from Common Crawl
WordLift — AI-powered SEO and structured data management platform

SERP Analysis and Monitoring (7)

SERPstat — SERP analysis with clustering, volume trends, and competitor intelligence
SimilarWeb — Estimated traffic, sources, demographics, and competitive benchmarking
SpyFu — Competitor paid and organic keywords with historical data
Sistrix — Visibility score, keyword analysis, and SERP features popular in Europe
SEOClarity — Enterprise SERP analytics and rank tracking with generative search features
Authoritas — SERP feature tracking and AI snippet analysis across 100+ regions
SEOBrowse — Search results analysis and SERP visualization tool

Schema Markup and Structured Data (10)

Schema.org — Official vocabulary documentation for all structured data types
Google Rich Results Test — Validates structured data and previews rich results eligibility
Schema Markup Generator (Merkle) — Free JSON-LD generator for FAQ, How-To, Product, and Organization schemas
InLinks Schema Generator — Automated schema generation based on entity recognition and NLP
Organization Schema for Ecommerce — E-commerce Organization schema including VAT and merchant returns
BlogPosting Schema Generator — Quick blog schema generator with author page linking
Person Schema Generator — Person schema generator for author pages
Case Study Schema Suite — Connects portfolio pages to case studies with schema
Schemantra — Validates and monitors structured data with issue alerts
Schema App — End-to-end structured data management platform

Page Speed and Core Web Vitals (6)

Google PageSpeed Insights — Lighthouse audits combined with real-world Chrome user data
GTmetrix — Load time, page size, and request count analysis with recommendations
WebPageTest — Multi-location and browser testing with filmstrip and waterfall analysis
Lighthouse — Open-source performance, accessibility, and SEO auditing in Chrome DevTools
CrUX Dashboard — Real-world Chrome user data with BigQuery and API access
DebugBear — Core Web Vitals monitoring with performance budgets and alerting

SEO Browser Extensions (8)

SiteAnalyzer SEO Tools — Free extension for SEO metrics and technical audit analysis
Keyword Surfer — Free extension showing volume, CPC, and related keywords in Google results
Detailed SEO Extension — Free extension for on-page SEO data including titles, meta, and headers
SEOQuake — Free extension with toolbar, on-page audit, and SERP overlay
MozBar — Domain and Page Authority metrics for visited pages
Ahrefs SEO Toolbar — Free extension with SEO metrics, on-page data, and redirect chain detection
Wappalyzer — Identifies CMS, frameworks, analytics, and marketing tools behind websites
Sprout SEO — Free extension for on-page analysis, technical checks, and Core Web Vitals

Log File Analysis (4)

Screaming Frog Log File Analyser — Desktop tool for analysing bot crawl behavior and crawl budget
JetOctopus — Cloud-based log analyzer combining log and crawl data for large sites
Oncrawl Log Analyser — Server log analysis with crawl data for bot behavior and orphan discovery
Botify — Enterprise log analysis, crawling, and keyword integration for crawl budget optimization

SEO Automation and Workflows (6)

Gumloop — Visual workflow builder for custom SEO automations without coding
AirOps — AI content operations for automating SEO and content workflows
Make — No-code automation connecting tools and automating reporting
Zapier — Connects SEO tools with CRMs, spreadsheets, and communication platforms
DataForSEO — SEO data API for SERP results, keywords, backlinks, and tracking
SearchAPI.io — Real-time SERP scraping API for Google, Bing, and YouTube

Reddit Marketing (3)

Launch Club AI — Reddit marketing toolkit scanning for high-intent threads
Redreach — AI Reddit lead generation monitoring 100,000+ subreddits
Reddit Insights — Reddit data analysis and insights platform

Reporting and Dashboards (6)

Google Looker Studio — Free dashboard tool connecting to Search Console, Analytics, and third parties
AgencyAnalytics — White-label reporting for agencies connecting 80+ tools
Databox — Customizable dashboards from hundreds of sources with KPI alerts
DashThis — Marketing reporting with SEO templates and drag-and-drop building
Supermetrics — Data pipeline from SEO platforms into spreadsheets, Looker Studio, and data warehouses
Bigmetrics — Analytics and metrics platform for SEO performance tracking

WordPress SEO Plugins (5)

Yoast SEO — Most popular WordPress plugin for meta tags, sitemaps, breadcrumbs, and schema
Rank Math — Feature-rich with generous free tier for schema, tracking, and AI suggestions
All in One SEO — On-page analysis, schema, sitemaps, social integration, and Link Assistant
SEOPress — Lightweight plugin handling meta, sitemaps, schemas, and redirects
The SEO Framework — Minimalist performance-focused plugin for essential SEO

Free Google Tools (7)

Google Search Console — Keyword data, indexing status, Core Web Vitals, and manual actions
Google Analytics — Traffic sources, user behavior, and conversions tracking
Google Trends — Keyword interest over time and regions for seasonality and trends
Google PageSpeed Insights — Lab and real-world performance data with speed recommendations
Google Mobile Friendly Test — Checks mobile usability standards compliance
Google Rich Results Test — Validates structured data and previews search appearance
Google Looker Studio — Free reporting and dashboards connecting Search Console and Analytics

Google Search Console Enhancement (3)

SEOTesting — Experimentation platform on GSC data with time and split tests
SEO Stack — AI-powered GSC replacement warehousing 10 years of data without row limits
SEO Gets — Surfaces 50k rows vs GSC's 1k limit with topic clustering and decay heatmaps

Documentation and Learning (9)

Google Search Central — Official Google documentation on search best practices
Schema.org Documentation — Full reference for all structured data types and properties
Ahrefs Blog — Tutorials, case studies, and data-driven research
Moz Blog — Strategies, tactics, and analysis with Whiteboard Friday
Search Engine Journal — News, guides, and how-to articles on SEO and content marketing
Search Engine Land — Industry news and search marketing analysis
Backlinko — Step-by-step guides on link building and on-page SEO
SEOFOMO News — Curated SEO and digital marketing news by Aleyda Solis
Learning SEO — Comprehensive educational SEO content and resources