Free SEO Tools
50+ professional SEO tools — no signup, no limits, on real live data.
Most professional SEO data sits behind tools that cost $100–$500 a month. SeoMods gives those everyday checks away for free. Below are all the free tools, organized by category — pick one, enter a URL, domain or keyword, and get real results in seconds.
Site & On-Page Analysis
On-Page SEO Audit
Full on-page checkup with an overall score: titles, headings, images, links, mobile, speed, indexability and more.
Technical Site Audit (Crawler)
Crawl multiple pages of a site and aggregate technical SEO issues: broken links, missing titles, thin content, redirects and noindex.
On-Page SEO Checker (Keyword)
Score how well a page is optimized for a specific target keyword — placement in title, H1, URL, density and more.
Meta Tag Analyzer
Extract and grade title, meta description, robots, canonical, Open Graph and Twitter tags from any live page.
Keyword Density Checker
Analyze real word & phrase frequency (1, 2 and 3-word) of any page to spot keyword stuffing or gaps.
Heading Structure Analyzer
Visualize the H1–H6 outline of a page and detect missing H1, skipped levels and multiple H1 issues.
Open Graph & Twitter Card Checker
Preview how your page looks when shared on Facebook, LinkedIn and X (Twitter) with full tag validation.
Structured Data (Schema) Checker
Detect JSON-LD and Microdata structured data types implemented on a page (Article, Product, FAQ, etc.).
Link Analyzer
Count internal vs external links, nofollow/dofollow ratio and list every link found on the page.
Broken Link Checker
Crawl all links on a page and report dead links (4xx/5xx), redirects and their HTTP status codes.
Image ALT Text Checker
List every image on a page and flag those missing descriptive ALT text — a key accessibility & SEO factor.
Mobile-Friendly Checker
Check viewport configuration, responsive meta tags and common mobile usability signals.
Page Speed & Size Test
Measure real server response time (TTFB), total load time, page weight, compression and request size.
Keyword & Content Research
Keyword Research
Discover hundreds of real keyword ideas with A–Z, question & preposition modifiers, intent classification and grouping.
Keyword Suggestion Tool
Get instant keyword ideas straight from Google Autocomplete with A-Z & question modifiers.
Topic Research & Content Ideas
Turn one seed into clustered content ideas: questions, comparisons, prepositions — perfect for content calendars.
Search Intent Analysis
Classify any keyword as Informational, Navigational, Commercial or Transactional using real signal patterns.
Content / Keyword Gap
Compare your page against a competitor and reveal the keywords & terms they cover that you are missing.
EstimateSERP Features Analyzer
Predict which Google SERP features (featured snippet, PAA, video, local pack) a keyword is likely to trigger.
EstimatePPC & Keyword Value Research
Estimate commercial value and competition of keywords and group them for paid campaigns.
Google SERP Snippet Preview
Pixel-accurate preview of how your title and description will appear in Google search results.
Word & Character Counter
Count words, characters, sentences, paragraphs and reading time of any text — plus top keywords.
Text Similarity / Duplicate Checker
Compare two pieces of text and get a real similarity percentage to detect duplication.
Competitive & Backlinks
Competitor / Site Explorer
Profile any domain: live tech stack, server, page count, social profiles, domain age, SSL and on-site SEO signals.
Organic Research / Top Pages
Pull a domain’s most important pages from its sitemap and analyze the topics & keywords they target.
Backlink Checker / Verifier
Verify in real time whether specific pages link back to your domain, and inspect anchor text, rel and status.
Toxic Backlink Audit
Paste your backlink list (e.g. from Search Console) and flag toxic, spammy or risky links with a toxicity score.
Link Intersect / Backlink Gap
Compare outbound link profiles of two competitor pages to find linking domains you could also target.
EstimateKeyword Rank Checker
Estimate where a domain ranks for a keyword by analyzing on-page relevance signals against the target term.
EstimateMarket / Niche Explorer
Map a niche: aggregate real keyword demand signals and competitor angles to size up a market.
Domain & Technical
WHOIS Lookup
Retrieve real domain registration data: registrar, creation/expiry dates, name servers and status.
DNS Records Lookup
Query live A, AAAA, MX, NS, TXT, CNAME, SOA and SRV records for any domain.
SSL Certificate Checker
Inspect the live TLS certificate: issuer, validity dates, days remaining and SAN domains.
HTTP Header Checker
View raw response headers, server software, caching, security headers and content type of any URL.
Redirect & HTTP Status Checker
Trace the full redirect chain (301/302/307) of a URL and verify the final status code.
IP & Geolocation Lookup
Resolve a domain/IP and get real geolocation, ISP, ASN and hosting organization data.
Robots.txt Tester
Fetch and parse a site’s robots.txt, list rules per user-agent and locate sitemap declarations.
Sitemap Finder & Validator
Locate a domain’s XML sitemap(s), validate the format and count the URLs inside.
Gzip / Brotli Compression Test
Check whether a URL serves compressed content and measure the bytes & percentage saved.
Domain Age Checker
Find the registration date and exact age of any domain via live WHOIS data.
Local, Brand & Social
Local SEO Audit
Check NAP (name/address/phone), LocalBusiness schema, contact data and map signals for local ranking readiness.
Brand Mention Monitoring
Track real-time web & news mentions of your brand or keyword via live Google News / RSS feeds.
Social Media Presence Tracker
Scan a website for linked social profiles and Open Graph social-readiness across platforms.
Generators & Utilities
Meta Tag Generator
Generate clean, copy-ready title, description, robots, Open Graph and Twitter meta tags.
Robots.txt Generator
Build a valid robots.txt with allow/disallow rules, crawl-delay and sitemap reference.
.htaccess Redirect Generator
Generate WWW/non-WWW, HTTP→HTTPS and 301 redirect rules for Apache .htaccess.
Schema (JSON-LD) Generator
Produce valid JSON-LD structured data for Organization, Website, Article or LocalBusiness.
UTM Campaign URL Builder
Create trackable campaign URLs with utm_source, medium, campaign, term and content parameters.
SEO URL Slug Generator
Convert any title into a clean, lowercase, hyphenated, SEO-friendly URL slug (handles Turkish chars).
Encoder / Decoder & Hash
Base64, URL encode/decode and MD5 / SHA-1 / SHA-256 hashing in one place.
Strong Password Generator
Generate cryptographically secure random passwords with configurable length and character sets.
Frequently asked questions
Are these SEO tools really free?
Yes. All 50+ tools are completely free with no trials, paywalls or usage limits. No card and no account are required.
Do I need to sign up?
No. You can use any tool instantly without signing up. An optional free account only lets you save your activity.
What are the best free SEO tools here?
The most popular are the On-Page SEO Audit, Backlink Checker, Keyword Research, SERP Preview and the technical lookups (WHOIS, DNS, SSL). All run on real, live data.
Do the tools use real data?
Yes. They fetch the actual page, query real DNS/WHOIS registries and inspect the real SSL chain. Where a metric cannot be obtained for free, it is clearly labelled as an estimate.
Are these a free alternative to Semrush or Ahrefs?
For individual checks — audits, lookups and keyword ideas — yes. They do not replace those paid platforms for enterprise-scale rank tracking.