SEO Resources – Free Tools & Guides

SEO Resources – Free Tools & Guides

250+ SEO tools and resources across 17 categories. Official docs (Google Search Console, Bing Webmaster), keyword research (Ahrefs, Semrush), technical audits (Screaming Frog, Sitebulb), content optimization (SurferSEO, Clearscope), backlinks, local SEO, Core Web Vitals, and more.

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Always start with Google Search Console and official docs—they're free and authoritative.
Screaming Frog SEO Spider is the gold standard for technical audits (free for 500 URLs).
For keywords: Ahrefs and Semrush lead, but Google Keyword Planner is free with an ads account.
Core Web Vitals matter—use PageSpeed Insights and Chrome UX Report for field data.
Backlink analysis: Ahrefs has the best index, Majestic offers unique Trust Flow metrics.
Local SEO: Claim your Google Business Profile first, then use BrightLocal or Whitespark for citations.

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SEO Foundations (Official)

Bing Webmaster Tools — Microsoft Bing site tools
Yandex Webmasters — Yandex site management
Google Page Experience (CWV) — Core Web Vitals overview
Google Rich Results Test — Validate structured data
Sitemaps Protocol — XML sitemaps reference
Microsoft Content Policies — Bing guidelines
YouTube Creator Music Policies — Avoid video SEO strikes
Google Merchant Center — Shopping feeds & surfaces

Keyword & Topic Research

Ahrefs Keywords Explorer — Depth + click metrics
Semrush Keyword Magic — Huge database + filters
Moz Keyword Explorer — Volume + difficulty
KWFinder (Mangools) — User‑friendly long‑tail
Serpstat — All‑in‑one, strong in CIS/EU
KeywordTool.io — Autocomplete sources
AlsoAsked — People Also Ask explorer
AnswerThePublic — Question visualizations
Google Ads Keyword Planner — Official volumes (ads)
Exploding Topics — Trend discovery
Soovle — Multi‑engine autocomplete
Topic Mojo — Topic maps & questions
WriterZen Keyword — Topic clustering suite
LowFruits — Weak SERP targeting
Glimpse for Trends — Trends enhancer
Keyword Cupid — Auto clustering

Rank & SERP Tracking

SE Ranking — All‑in‑one + tracking
Nightwatch — Local grids & API
Mangools SERPWatcher — Simple tracking
Ahrefs Rank Tracker — Global positions
Semrush Position Tracking — Device & local
ProRankTracker — Budget friendly
Advanced Web Ranking — Historic SERPs
Wincher — WordPress plug‑in support
SERPwoo — SERP intelligence
CognitiveSEO Signals — Tracking + audits
Rank Ranger — Feature reporting
Sensor (Semrush) — SERP volatility index
MozCast — Weather‑style SERP flux

Site Audits & Crawlers

Screaming Frog SEO Spider — Gold‑standard desktop crawler
Sitebulb — Audits with graphs & Hints
Lumar (Deepcrawl) — Enterprise cloud crawling
Botify — Enterprise SEO platform
JetOctopus — Log + crawl analysis
OnCrawl — Data‑driven cloud crawler
Siteliner — Duplicate content checker
Netpeak Spider — Affordable desktop crawler
ContentKing (Conductor) — Real‑time monitoring
SEOlyzer — Free log analyzer
Headless Chrome + Lighthouse CI — Automated audits
Ahrefs Site Audit — Cloud audits
Semrush Site Audit — Issues & themes
Beam Us Up — Legacy desktop crawler

Technical SEO Utilities

technicalseo.com Tools (Merkle) — Robots, hreflang, schema, etc.
httpstatus.io — Bulk HTTP status/headers
WhereGoes — Trace redirects
Redirect‑Checker.org — Single URL redirects
Hreflang Checker (Sitebulb) — Validate hreflang
Mobile‑Friendly Test (Lighthouse) — Core audits & mobile
HSTS Preload — Check HSTS status
SecurityHeaders.com — HTTP security headers
Robots Exclusion Tester (Bing) — Test in BWT
Sitemap Validator (SEOptimer) — XML sitemap check
XML Sitemaps Generator — Create sitemaps fast
Hreflang.org Testing Tool — Audit international tags

On‑Page & Content Optimization

SurferSEO — Content editor & NLP
MarketMuse — Topic modeling & planning
Clearscope — Entity coverage scoring
Frase — Briefs & optimization
ContentKing Pixels (CK AI) — Editorial best practices
Hemingway Editor — Readability polish
Rank Math — WP SEO plugin
Originality.ai — AI detection & plagiarism
Copyscape — Duplicate content check
Quetext — Plagiarism checker
Outranking — AI briefs & editors
NeuronWriter — Semantic editor

Backlink Analysis & Link Building

Ahrefs Site Explorer — Best‑in‑class link index
Semrush Backlink Analytics — Backlink database
Majestic — Trust/Citation Flow
Moz Link Explorer — DA/PA metrics
Linkody — Backlink monitoring
Monitor Backlinks (Ubersuggest) — Alerts & audits
Pitchbox — Outreach & CRM
BuzzStream — Prospecting & outreach
Hunter.io — Find email patterns
Voila Norbert — Email finding
NeverBounce — Email validation
Clearbit — Prospect enrichment
HARO/Connectively — PR opportunities
Terkel (Featured) — Expert quotes platform
Respona — Automated outreach
LinkResearchTools — Risk & detox
Disavow Tool (GSC) — Disavow file submit

Local SEO & Maps

Google Business Profile — Local presence
BrightLocal — Audits, grids, citations
Whitespark — Citations & rank tracking
PlePer Tools — GBP categories & more
GeoGrid (Nozzle/LocalFalcon) — Map rank grids
Moz Local — Listings distribution
Yext — Enterprise listings
Synup — Reputation & listings
Birdeye — Reviews platform

Speed, Performance & CWV

PageSpeed Insights — Lab + field CWV
web.dev/measure — Lighthouse‑based audits
WebPageTest — Filmstrips & waterfalls
GTmetrix — Page speed summary
Calibre — Performance monitoring
SpeedCurve — RUM + synthetic
RequestMap — Third‑party script bloat
Bundlephobia — Package weight
ImageOptim — Local image compression
Squoosh — In‑browser image encode

Structured Data & SERP Features

Rich Results Test — Google validator
JSON‑LD Playground — Test JSON‑LD

Analytics & Reporting

Google Analytics (GA4) — Traffic & conversions
Looker Studio — Free dashboards
Matomo — Open‑source analytics
Plausible — Lightweight analytics
Fathom — Privacy‑first analytics
Supermetrics — Connectors for reporting
Windsor.ai — Marketing attribution
Analytics Debugger (GA DevTools) — Test GA4 events
Google Data Exporter (GSC) — Page/Query exports

SERP Research & Intent

SERP API (SerpApi) — Programmatic SERP data
SEO Minion — Chrome extension helper
Detailed SEO Extension — SERP & on‑page aids

CMS & Platform SEO

Wix SEO Learning Hub — Wix resources
Headless SEO (Next.js) — Next.js SEO basics

Learning, Blogs & Research

Ahrefs Blog — Data‑driven case studies
Semrush Blog — Guides & trends
Moz Blog — Long‑standing best practices
Marie Haynes — Algorithm analysis
Aleyda Solis / Crawling Mondays — International & tech SEO
SEOFOMO Newsletter — Weekly curated news
SparkToro Blog — Audience insights & trends
Cyrus Shepard (Zyppy) — On‑page research
Search Engine Roundtable — Daily SEO news
Search Engine Land — Industry publication
Brody Clark — SERP feature testing
Barry Adams / SEO for News — News SEO specialization
Learning SEO (Aleyda) — Structured learning paths

Crawl, Index & HTTP Utilities

Test My Site (Think with Google) — Mobile speed & UX
HTTPie Online — Inspect requests
curlconverter.com — Turn curl to code
Heads‑Up with headers.cz — HTTP headers quicklook
GZIP Test — Compression check
Brotli Test — Brotli support
Can I Use — Browser support tables
Regex101 — Test extraction patterns
URL Encode/Decode — Encode helpers

Developer & Rendering Tools

Puppeteer — Headless Chrome control
Playwright — Cross‑browser automation
Scully (Angular) — Static site gen
Next.js — SSR/SSG for React
Nuxt — Vue SSR/SSG
Gatsby — React SSG w/ image perf
Eleventy — Simple static generator
Open Graph Preview — Social tags preview
Metatags.io — Meta preview tool
SnapShooter Render — Cross‑browser testing

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