Free Website, SEO and Marketing Tools
Free technical checks, SEO utilities, analytics calculators, and marketing generators to debug your website and improve growth. No sign-up required.
IP Lookup
Find your IP address and geolocation data
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DNS Lookup
Check A, AAAA, MX, NS, TXT, and CAA records
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Sitemap Validator
Validate your sitemap.xml for errors
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HTTP Headers Checker
Inspect response, cache, and security headers
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SSL Certificate Checker
Check HTTPS certificate issuer and expiry
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Redirect Checker
Trace URL redirects and final destinations
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Cookie Checker
Inspect Set-Cookie headers and attributes
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CSP Checker
Check and generate Content Security Policy headers
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Canonical URL Checker
Check canonical tags and indexability signals
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Page Size Checker
Estimate page weight and linked resource size
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Indexability Checker
Check if Google can index a page
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Robots.txt Tester
Test crawler access for a specific path
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Broken Link Checker
Find 404s, redirects, and invalid links
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Hreflang Checker
Validate international SEO alternates
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SERP Snippet Preview
Preview Google title and description snippets
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On-Page SEO Checker
Audit titles, headings, links, images, and schema
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Image SEO Checker
Audit alt text, dimensions, sizes, and formats
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Internal Link Analyzer
Inspect anchors, rel attributes, and link groups
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AI Crawlability Checker
Check AI crawler rules, llms.txt, and schema
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GSC Export Analyzer
Find CTR gaps, quick wins, and cannibalization
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HTTP Status Bulk Checker
Check statuses and redirects for URL lists
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Migration Redirect Validator
Validate old to new URL redirect mappings
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Uptime SLA Calculator
Convert downtime into uptime and SLA allowances
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Bandwidth Calculator
Estimate hosting bandwidth from traffic and page weight
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ROI Calculator
Calculate ROAS, ROI, CAC, and other metrics
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CTR Calculator
Calculate your Click-Through Rate
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UTM Generator
Create trackable URLs with UTM parameters
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A/B Test Calculator
Calculate statistical significance of your A/B tests
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LTV Calculator
Calculate Customer Lifetime Value
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Meta Tags Generator
Generate SEO and Open Graph meta tags
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Ad Cost Calculator
Calculate CPM, CPC, and total ad costs
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QR Code Generator
Create customizable QR codes instantly
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Schema Markup Generator
Generate JSON-LD structured data for rich snippets
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Robots.txt Generator
Create crawler rules to control search engine indexing
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Conversion Rate Calculator
Calculate conversion rate, traffic needs, and revenue impact
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Open Graph Preview
Preview social media cards for Google, Facebook, X, and LinkedIn
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Percentage Calculator
Calculate percentages, percentage of, and percentage change
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Es ist Zeit Google Analytics aufzugeben.
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