| What it does | Free online reaction time test that measures your reflex speed in milliseconds
| Free fence calculators for posts, rails, pickets, panels, concrete and installed cost estimates
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| Stage | Not given
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| Founded | Not given
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| Based in | US
| US
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Reaction time measured in milliseconds
- Sessions of 5, 10 or 20 rounds
- Best and average score tracking
- Percentile comparison with online-test benchmarks
- Shareable score card and friend challenge link
- Light and dark mode
- Works on mobile, tablet and desktop
- No registration or download required
- Random delay prevents anticipation
| - Material quantity calculators for posts, rails, pickets and concrete
- Installed cost estimates by material type and US state
- Support for multiple fence styles including privacy, picket, chain link, vinyl and split-rail
- Gate calculations and multiple layout options
- Published formulas and calculation methodology
- Planning guides covering post spacing, depth and frost lines by state
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| What makes it different | - No sign-up, download, or account required
- Does not collect or store personal data
- Sub-millisecond timer precision using browser performance API
- Benchmarks against pro gamers, trained athletes, and average adults
- Fast and clean interface without ads
| - All formulas are published and explained on every calculator page
- Accounts for regional cost differences using construction cost index
- Covers multiple fence materials and styles in one set of tools
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 6 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 4 |
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| Citation Flow (Majestic) | 12 | 17 |
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| Referring domains (Majestic) | 3 | 4 |
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VoltReflex
CalcFence