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Free SEO & Website Tools for Startups

62 free founder utilities - Ahrefs DR checker, website SEO checker, PageSpeed Insights, keyword generator, WHOIS / domain age, meta tags, SERP preview, sitemap suite, Markdown converters, name generator, title testers, robots.txt, UTM builder, launch checklist, and more. No signup.

Launch free

SEO tools built for launch week - not enterprise dashboards.

Validate the idea, compare websites, check Domain Rating, ship clean titles and OG tags, then list on ScrollLaunch for a lasting dofollow product page and browse high-DR directories.

Free tools

62

No signup

Categories

5

Authority → launch

Live Ahrefs DR

Yes

Public API

Dofollow launch

1

Per live product

Sitemap suite

Find, validate, and ship XML sitemaps

Ten tools that share one fetch pipeline - start with the checker, then count, extract, or generate.

After your sitemap is live, add a Sitemap: line with the robots.txt generator.

Workflow

How to use these SEO tools before launch

A practical sequence from branding to backlink targets - then ship.

  1. 1

    Validate the idea

    Score problem, demand, and go-to-market before you name or build.

    Validate ideaName generatorTagline

  2. 2

    On-page SEO

    Ship title, meta, OG image, robots.txt, then verify your sitemap.

    Keyword ideasMeta tagsSERP previewSEO checkerPageSpeedSitemap checker

  3. 3

    Authority check

    Compare DR and on-page SEO vs competitors or directories.

    DR checkerBulk DRWHOIS / ageSEO compare

  4. 4

    Launch week

    Checklist, UTMs, QR codes, ISO week - then list on ScrollLaunch.

    ChecklistUTM builderSPF / DMARCQR codeISO week

Category

Authority & backlinks

Ahrefs DR checker (single or bulk), WHOIS / domain age, dofollow audits, and backlink value before outreach.

Category

Name & branding

Generate startup names, taglines, and clean URL slugs before you print the brand.

Category

On-page & technical SEO

Titles, meta, OG, FAQ schema, robots.txt, redirects, headers, SSL, DNS, llms.txt, and copy diagnostics. Sitemap tools live in the suite above.

Looking for sitemaps? Jump to the sitemap suite.

Meta Description Tester

Write a meta description, see character/pixel estimates, and preview a Google-style SERP snippet.

Open Graph Preview

Preview Facebook and X-style link cards and generate og: title, description, and image tags.

Word Counter

Count words, characters, sentences, and estimated reading time for blogs, taglines, and launch copy.

Title Tag Generator

Build SEO title tags under ~60 characters from a keyword, brand, and page type.

Robots.txt Generator

Build a clean robots.txt with sitemap URL, disallow paths, and optional AI-scraper blocks.

Redirect Checker

Free redirect checker - trace 301/302/307/308 chains, meta refresh, and the final landing URL.

HTTP Header Checker

Free HTTP header checker - inspect status, security headers, caching, and X-Robots-Tag.

Canonical URL Checker

Free canonical URL checker - verify <link rel="canonical"> matches the final URL.

Broken Link Checker

Free broken link checker - scan a page’s outbound links for 4xx/5xx failures.

robots.txt Tester

Free robots.txt tester - fetch live rules, list sitemaps, and test if a path is allowed.

DNS Lookup

Free DNS lookup - A, AAAA, CNAME, MX, NS, TXT, and SOA records for any domain.

SSL Checker

Free SSL checker - certificate validity, expiry, issuer, and SAN names.

llms.txt Generator

Generate llms.txt and a draft ai.txt so answer engines can understand your site.

FAQ Schema Generator

Turn Q&A pairs into valid FAQPage JSON-LD for Google rich results - copy a ready <script> tag.

Keyword Density Checker

Paste draft copy to see word count, top phrases, and density % - spot stuffing before you publish.

Reading Time Calculator

Estimate minutes-to-read from any draft - same ~200 wpm style used on ScrollLaunch blog cards.

OG Image Generator

Design a 1200×630 Open Graph image in the browser - title, brand, accent - then download PNG.

Keyword Generator

Free keyword generator - questions, commercial, comparison, and long-tail ideas from a seed.

Keyword Difficulty Checker

Free keyword difficulty estimator - heuristic 0–100 from length and modifiers (not Ahrefs KD).

SERP Preview

Free Google snippet preview - title, URL, and meta description with desktop and mobile width estimates.

Website SEO Checker

Free website SEO checker - on-page score and checklist for any URL.

Schema Markup Checker

Free JSON-LD extractor - list schema.org types and raw structured data from any page.

Heading Analyzer

Free heading analyzer - outline H1–H6, flag missing or multiple H1s, copy as Markdown.

Hreflang Checker

Free hreflang checker - list alternate language URLs and flag missing x-default.

Readability Checker

Free readability checker - Flesch Reading Ease and grade level from pasted copy.

Image Alt Checker

Free image alt checker - list img tags on a page and flag missing alt attributes.

Meta Tags Checker

Free meta tags checker - extract title, description, robots, OG, Twitter, and every meta name/property.

Website Down Checker

Free website down checker - see if a URL is up from our server, with HTTP status and response time.

SPF DKIM DMARC Checker

Free SPF, DKIM, and DMARC checker - plus MX - so founder email is less likely to land in spam.

301 Redirect Generator

Free 301 / 302 redirect generator - Apache, Nginx, Vercel, Next.js, Netlify, and Cloudflare snippets.

PageSpeed Insights Checker

Free Google PageSpeed Insights checker - Lighthouse scores, Core Web Vitals, and CrUX field data.

Category

Markdown & content

Convert HTML, JSON, CSV, XML, paste, and webpages to Markdown - plus a simple email signature builder.

Category

Launch week

Idea validation, launch checklists, UTM links, QR codes, and ISO week planning.

Why these tools

Built for launch SEO, not vanity dashboards

Most SEO suites bury founders in crawl reports. These free SEO tools answer the questions you hit the week before launch: What is this directory's DR? How does my site compare on-page? Will my meta description truncate? Is my OG image ready? Which ISO week am I launching in?

Use them together with ScrollLaunch's curated directory list (ranked by Ahrefs Domain Rating) and a free dofollow product page so the equity you earn compounds after launch day.

Prefer a single competitor check? Start with SEO Compare. Need only Domain Rating? Use the Ahrefs DR checker. For the full launch playbook, read how to launch a SaaS, best SaaS directories, or Product Hunt alternatives.

Questions

Free SEO tools FAQ

What free SEO tools does ScrollLaunch offer?

62 utilities across authority, branding, on-page SEO, Markdown converters, and launch week - including a free how to validate a startup idea scorecard, SEO Compare, Ahrefs DR checker, website SEO checker, WHOIS / domain age, PageSpeed Insights, a sitemap suite, Markdown converters, robots.txt, UTM builder, and a SaaS launch checklist.

What is in the sitemap suite?

Finder/checker, validator, link counter, URL extractor, generator, index generator, split/merge, compare, analytics, and frequency analyzer - start with the sitemap checker, then wire the URL into robots.txt.

Are these SEO tools really free?

Yes. Every tool on /tools is free with no account required. Domain Rating, Bulk DR, SEO Checker, PageSpeed, SEO Compare, and Validate Startup Idea are rate-limited to protect upstream APIs and fair use.

What is the best tool to compare two websites?

Use SEO Compare for a full website comparison (on-page SEO score, Ahrefs DR, titles, meta, H1, Open Graph, robots.txt sitemap, and more). Use Ahrefs DR checker for a single-domain lookup.

Where does Domain Rating data come from?

Live Domain Rating comes from Ahrefs' free public Domain Rating API. Results are attributed as Domain Rating by Ahrefs.

Who are these website tools for?

Indie makers and SaaS founders preparing a launch - naming the product, shipping on-page SEO, checking DR before directory submissions, and planning ISO launch weeks on ScrollLaunch.

Do I need to sign up to use them?

No. Tools run in the browser (or via public APIs for Domain Rating, SEO Checker, WHOIS, and SEO Compare). Create an account only when you are ready to launch a product.

How should I use these tools before launch?

Follow the workflow on this page: validate the idea → on-page SEO → authority compare → launch checklist / UTMs / ISO week - then list on ScrollLaunch for a lasting dofollow product page.

Tools done. Launch next.

Launch free on ScrollLaunch and get a canonical dofollow backlink from your product page - the same equity founders chase on high-DR directories.