| What it does | Continuous website auditing across security, performance, SEO, accessibility and compliance
| Free online keyword extraction tool for text and URLs with instant results, no signup required
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| Stage | Not given
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| Founded | Not given
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| Based in | CZ
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| Free plan: Text and URL keyword extraction up to 10,000 characters per submission. Pro plan: $9.99 per month or $99 per year; includes 50,000 character limit for Text and URL extraction and AI-powered semantic extraction up to 20,000 characters per request.
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| Key features | - 199 checks across 9 audit categories
- Evidence-backed findings with detection method
- Multi-page website crawling
- Device preview lab with multiple viewports
- PDF export and client reports
- White-label branding on Agency plans
- Standards mapping to OWASP, WCAG and RFCs
- Public REST API with 60-120 requests per minute
- Competitor benchmark on Super plan
| - Word frequency analysis and keyword density calculation
- Stop-word filtering to remove common words
- Multi-word phrase detection (bigrams and trigrams)
- Text and URL extraction modes
- Download results as CSV file
- Copy results to clipboard
- Filter results by keyword type (1-word, 2-word, 3-word phrases)
- AI-powered semantic extraction for Pro users
- URL extraction respects robots.txt directives
- No account or signup required for free features
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| What makes it different | - One defensible audit artefact instead of multiple tools and spreadsheets
- Read-only scans that respect robots.txt and never change anything
- No account or card required for initial scan
- Weighted scoring that marks unmeasured categories rather than inflating scores
- Client projects with share links and read-only viewer role
| - Completely free with no signup, credit card, or account required
- Privacy-first approach with no cookies, tracking, or data retention
- Supports multi-word phrases (bigrams and trigrams) for comprehensive keyword analysis
- Works with publicly accessible URLs without manual copy-paste
- Results available instantly with multiple export and filtering options
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 6 ● no change since last check | 9 ● no change since last check |
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| Trust Flow (Majestic) | 1 | 4 |
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| Citation Flow (Majestic) | 19 | 14 |
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| Referring domains (Majestic) | 6 | 34 |
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WebAuditOS