100% free · No signup required
Free SEO tools that tell you exactly what to fix
Research keywords, audit pages, analyze SERPs and optimize content. Everything you need to improve your search rankings, in one place.
- Instant results
- No account required
- No credit card
- Tools in the kit
- 4
- Now and forever
- $0
- Countries of keyword data
- 20
- Platforms previewed
- 8
Results built on
- Live SERP data
- PageSpeed Insights
- Open Graph
- Schema.org
The toolkit
Everything you need to grow organic traffic
Built for SEOs, content teams and indie founders. Every tool ships with the data you need to fix what's broken.
Research & Content
2 tools
Keyword Research
Find rankable keywords with volume, CPC, competition and live SERP data.
- Monthly search volumes & 12-month trends
- Competition score (0–100)
- CPC & paid competition data
- Full SERP analysis with top 10 results
Social Preview
See and fix how any URL looks on Google, social networks and chat apps.
- Google SERP snippet preview (desktop & mobile)
- Facebook, Twitter & LinkedIn card previews
- WhatsApp, Slack & Discord link previews
- Schema.org validation & rich result checker
Audit & Optimization
2 tools
Technical SEO
Surface crawl, indexing, speed and security issues before they hurt rankings.
- robots.txt & XML sitemap analyzer
- Core Web Vitals & page speed audit
- Redirect chain & canonical checker
- SSL, security headers & HTTP audit
SEO Audit
A scored on-page audit with a prioritised fix list, in one scan.
- 7 on-page categories in one scan
- Meta tags, canonical & robots analysis
- Content quality, readability & keyword density
- Core Web Vitals (LCP, INP, CLS) — mobile & desktop
- Images, links & schema markup checks
- Weighted 0–100 score with A+–F grade
How it works
From URL to fix list in three steps
No onboarding, no credit card and no vanity metrics.
- 01
Enter a URL or keyword
Paste any public page or type a keyword. There is no account to create and nothing to install.
- 02
We analyze it live
Checks run against your real page: meta tags, content, links, schema, security headers and Core Web Vitals.
- 03
Get prioritized fixes
Every issue shows the value found and the target to aim for, with copy-paste code where a fix can be generated.
Keyword Research
Find keywords you can actually rank for
Enter one keyword and get monthly search volume, CPC, competition and the live top-10 search results, by country.
- Search volume, CPC and a 0–100 competition score for every keyword idea.
- 12-month trend lines to spot seasonality before it peaks.
- Filter, sort and export the full list to CSV in one click.
SEO Audit
No cryptic jargon. Plain-language fixes.
Most SEO tools drown you in raw errors. Here every issue shows the value found on your page next to the target to aim for, sorted by severity.
- A weighted 0–100 score with an A+ to F grade.
- Seven categories: meta tags, content, images, links, Core Web Vitals, schema and social tags.
- Add a target keyword to check your title, description, H1 and keyword density.
Why RedonApp
Not another generic SEO checker
Built to give you answers you can act on, without the enterprise paywall.
Real data
Live SERP results, Core Web Vitals from PageSpeed Insights and your page's actual tags. Nothing is mocked.
Free & private
No account and no credit card. Analytics load only if you allow them in the cookie settings.
Plain-language fixes
Every warning is explained in plain words, so marketers and developers can act on the same report.
Fix-ready code
Generate meta tags, schema, redirect rules, robots.txt and sitemaps in the format your stack uses.
Who it's for
Built for everyone who ships to the web
Developers
Validate tags before you deploy, and generate robots.txt, sitemaps, schema and redirect rules ready to ship.
SEO professionals
Audit any page or domain, share results with a link and export CSV reports.
Marketers and content teams
Preview campaigns on every social channel and find keywords worth writing for.
Agencies and freelancers
Run a credible technical audit during a pitch in under two minutes. No paid subscription needed.
From the blog
Latest guides
Actionable guides on keyword research, SEO strategy, and growing organic traffic — all free.
- Keyword research8 min read
Keyword Research for Beginners: Complete Guide
Everything you need to know to start finding keywords that drive real organic traffic — step by step.
Read article - Keyword research7 min read
How to Find Low Competition Keywords
A practical, step-by-step guide to finding keywords your site can realistically rank for — even if you're just starting out.
Read article - Keyword research8 min read
What is Keyword Difficulty? Everything You Need to Know
Keyword difficulty explained — what the score means, how it's calculated, and how to use it to choose better keywords.
Read article
FAQ
Frequently asked questions
What the tools check, how scores work and what they cost.
Are the tools really free?
Yes. Every tool is free to use with no signup and no credit card. Paste a URL or type a keyword and you get results straight away.
What does the SEO audit check?
The audit covers seven on-page categories: meta tags, content quality, images, links, Core Web Vitals, schema markup and social tags. Each category gets a score and a list of specific issues, and every issue shows the value found on your page next to the recommended target.
How is the SEO score calculated?
The 0–100 score is weighted across six categories: meta tags (20 points), content quality (25), images (15), links (15), page speed (15) and schema and social tags (10). The overall percentage maps to a letter grade from F to A+.
Which platforms does Social Preview cover?
It shows how your link appears on Google (desktop and mobile), Facebook, LinkedIn, Twitter/X, WhatsApp, Telegram, Slack and Discord in a single scan, and generates the missing meta, Open Graph and Twitter Card tags as HTML, React, Next.js, Astro or Nuxt code.
What does the Technical SEO toolkit audit?
Eight areas in one scan: robots.txt, XML sitemap, site security, schema markup, redirect chains, hreflang tags, HTTP headers and Core Web Vitals. Most tabs include a generator, so you can download a fix-ready config file.
Can I check any URL?
Any publicly accessible URL works. Private IP addresses and localhost are blocked. For a page that is not live yet, Social Preview accepts raw HTML pasted in place of a URL.
Ready to improve your rankings?
Run a full on-page audit on any URL and get a scored, prioritized fix list.
Free to use · No signup · No credit card
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