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Asset 2/15: Implement high-authority API Latency Cost Calculator
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‎app/tools/api-latency-calculator/page.tsx‎

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'use client'
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import React, { useState, useMemo } from 'react'
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import { DollarSign, TrendingDown, Clock, MousePointer2, AlertCircle, Info, ArrowRight, TrendingUp } from 'lucide-react'
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import BreadcrumbSchema from '@/components/seo/BreadcrumbSchema'
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export default function ApiLatencyCalculator() {
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const [monthlyRevenue, setMonthlyRevenue] = useState(10000)
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const [currentLatency, setCurrentLatency] = useState(500)
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const [targetLatency, setTargetLatency] = useState(100)
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const stats = useMemo(() => {
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// Industry Benchmark: 100ms = 1% conversion/revenue loss
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const latencyDiff = Math.max(0, currentLatency - targetLatency)
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const lossPercentage = (latencyDiff / 100) * 1.0
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const monthlyLoss = (monthlyRevenue * lossPercentage) / 100
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const annualLoss = monthlyLoss * 12
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const projectedRevenue = monthlyRevenue + monthlyLoss
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return {
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monthlyLoss,
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annualLoss,
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lossPercentage,
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projectedRevenue
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}
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}, [monthlyRevenue, currentLatency, targetLatency])
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return (
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<div className="min-h-screen bg-white dark:bg-slate-950 py-12 px-4 sm:px-6 lg:px-8 transition-colors duration-300">
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<BreadcrumbSchema name="API Latency Cost Calculator" slug="api-latency-calculator" />
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<div className="max-w-5xl mx-auto">
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<div className="text-center mb-12">
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<div className="inline-flex items-center justify-center p-3 bg-red-100 dark:bg-red-900/30 text-red-600 dark:text-red-400 rounded-2xl mb-4 border border-red-200 dark:border-red-800">
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<TrendingDown className="w-8 h-8" />
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</div>
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<h1 className="text-4xl font-extrabold text-gray-900 dark:text-white mb-4 tracking-tight">API Latency Cost Calculator</h1>
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<p className="text-xl text-gray-500 dark:text-slate-400 max-w-2xl mx-auto">
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Discover how much revenue your business is losing due to slow API response times and network latency.
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</p>
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</div>
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<div className="grid grid-cols-1 lg:grid-cols-3 gap-8">
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{/* Inputs Section */}
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<div className="lg:col-span-1 space-y-6">
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<div className="bg-white dark:bg-slate-900 rounded-3xl border border-gray-100 dark:border-slate-800 p-8 shadow-sm">
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<h2 className="text-sm font-bold text-gray-400 dark:text-slate-500 uppercase tracking-widest mb-6">Business Metrics</h2>
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<div className="space-y-6">
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<div>
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<label className="block text-xs font-bold text-gray-500 dark:text-slate-400 uppercase mb-2">Monthly Revenue ($)</label>
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<div className="relative">
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<DollarSign className="absolute left-4 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400" />
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<input
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type="number"
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value={monthlyRevenue}
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onChange={(e) => setMonthlyRevenue(Math.max(0, parseInt(e.target.value) || 0))}
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className="w-full pl-10 pr-4 py-3 bg-gray-50 dark:bg-slate-800 border border-gray-200 dark:border-slate-700 rounded-xl font-bold text-gray-900 dark:text-white focus:ring-2 focus:ring-red-500 outline-none transition-all"
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/>
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</div>
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</div>
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<div>
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<label className="block text-xs font-bold text-gray-500 dark:text-slate-400 uppercase mb-2">Current Latency (ms)</label>
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<div className="relative">
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<Clock className="absolute left-4 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400" />
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<input
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type="number"
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value={currentLatency}
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onChange={(e) => setCurrentLatency(Math.max(0, parseInt(e.target.value) || 0))}
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className="w-full pl-10 pr-4 py-3 bg-gray-50 dark:bg-slate-800 border border-gray-200 dark:border-slate-700 rounded-xl font-bold text-gray-900 dark:text-white focus:ring-2 focus:ring-red-500 outline-none transition-all"
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/>
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</div>
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</div>
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<div>
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<label className="block text-xs font-bold text-gray-500 dark:text-slate-400 uppercase mb-2">Target Latency (ms)</label>
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<div className="relative">
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<TrendingUp className="absolute left-4 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400" />
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<input
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type="number"
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value={targetLatency}
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onChange={(e) => setTargetLatency(Math.max(0, parseInt(e.target.value) || 0))}
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className="w-full pl-10 pr-4 py-3 bg-gray-50 dark:bg-slate-800 border border-gray-200 dark:border-slate-700 rounded-xl font-bold text-gray-900 dark:text-white focus:ring-2 focus:ring-green-500 outline-none transition-all"
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/>
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</div>
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</div>
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</div>
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</div>
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<div className="bg-amber-50 dark:bg-amber-900/10 rounded-3xl p-6 border border-amber-100 dark:border-amber-900/30">
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<div className="flex gap-3">
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<AlertCircle className="w-5 h-5 text-amber-600 shrink-0 mt-0.5" />
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<p className="text-xs text-amber-800 dark:text-amber-400 leading-relaxed font-medium">
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<strong>The 100ms Rule:</strong> Amazon found that every 100ms of latency cost them 1% in sales. Google found an extra 500ms delay caused a 20% drop in traffic.
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</p>
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</div>
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</div>
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</div>
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{/* Results Section */}
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<div className="lg:col-span-2 space-y-8">
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<div className="bg-gray-900 rounded-3xl p-10 text-white shadow-2xl relative overflow-hidden group">
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<div className="absolute top-0 right-0 p-8 opacity-10 group-hover:opacity-20 transition-opacity">
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<DollarSign className="w-32 h-32" />
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</div>
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<div className="relative z-10">
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<h3 className="text-sm font-bold text-gray-400 uppercase tracking-widest mb-8">Estimated Revenue Loss</h3>
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<div className="grid grid-cols-1 md:grid-cols-2 gap-12">
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<div>
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<span className="block text-gray-400 text-xs font-bold uppercase mb-2">Monthly Loss</span>
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<span className="text-4xl md:text-5xl font-extrabold text-red-500 tracking-tight">
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${stats.monthlyLoss.toLocaleString(undefined, { minimumFractionDigits: 2, maximumFractionDigits: 2 })}
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</span>
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</div>
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<div>
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<span className="block text-gray-400 text-xs font-bold uppercase mb-2">Annual Impact</span>
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<span className="text-4xl md:text-5xl font-extrabold text-white tracking-tight">
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${stats.annualLoss.toLocaleString(undefined, { minimumFractionDigits: 2, maximumFractionDigits: 2 })}
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</span>
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</div>
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</div>
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<div className="mt-12 pt-8 border-t border-gray-800">
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<div className="flex items-center justify-between">
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<div>
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<span className="block text-gray-500 text-xs font-bold uppercase mb-1">Conversion Drop</span>
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<span className="text-xl font-bold text-amber-500">-{stats.lossPercentage.toFixed(1)}%</span>
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</div>
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<div className="text-right">
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<span className="block text-gray-500 text-xs font-bold uppercase mb-1">Potential Monthly Revenue</span>
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<span className="text-xl font-bold text-green-500">${stats.projectedRevenue.toLocaleString(undefined, { minimumFractionDigits: 2, maximumFractionDigits: 2 })}</span>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div className="bg-white dark:bg-slate-900 rounded-3xl border border-gray-100 dark:border-slate-800 p-8">
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<div className="flex items-center gap-3 mb-6">
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<Info className="w-5 h-5 text-blue-500" />
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<h2 className="text-lg font-bold text-gray-900 dark:text-white">Why This Matters</h2>
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</div>
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<div className="prose prose-sm dark:prose-invert max-w-none text-gray-600 dark:text-slate-400">
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<p>
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Latency is silent conversion killer. In the world of modern web applications, user expectations are at an all-time high. A delay that feels insignificant to a developer can be the difference between a completed sale and a bounced visitor.
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</p>
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<div className="grid grid-cols-1 md:grid-cols-2 gap-6 mt-6">
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<div className="p-4 bg-gray-50 dark:bg-slate-800 rounded-2xl border border-gray-100 dark:border-slate-700">
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<h4 className="font-bold text-gray-900 dark:text-white mb-2 flex items-center gap-2">
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<MousePointer2 className="w-4 h-4 text-blue-500" /> UX Impact
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</h4>
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<p className="text-xs">Users perceive delays over 100ms as non-instant, breaking the flow of interaction and reducing trust in the platform.</p>
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</div>
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<div className="p-4 bg-gray-50 dark:bg-slate-800 rounded-2xl border border-gray-100 dark:border-slate-700">
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<h4 className="font-bold text-gray-900 dark:text-white mb-2 flex items-center gap-2">
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<TrendingUp className="w-4 h-4 text-green-500" /> SEO Benefits
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</h4>
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<p className="text-xs">Google's Core Web Vitals (specifically LCP and INP) directly influence search rankings based on site responsiveness.</p>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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{/* Footer Ad Slot */}
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<div className="mt-16 min-h-[250px] bg-gray-50 dark:bg-slate-900/50 rounded-3xl border border-dashed border-gray-200 dark:border-slate-800 flex items-center justify-center">
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<span className="text-xs font-bold text-gray-400 uppercase tracking-widest">Ad Placement</span>
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</div>
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</div>
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</div>
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)
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}

‎app/tools/page.tsx‎

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{ name: 'Secure Hash Generator', description: 'MD5, SHA-256, and SHA-512 cryptographic hashing tool', icon: Shield, href: '/tools/hash-generator', color: 'from-slate-500 to-slate-700', category: 'Generators' },
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{ name: 'Sitemap XML Validator', description: 'Verify XML sitemaps for Google Search Console compliance', icon: Layers, href: '/tools/sitemap-validator', color: 'from-blue-600 to-blue-800', category: 'SEO', releaseDate: '2026-05-06' },
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{ name: 'JSON-LD Schema Generator', description: 'Build structured data schema for Google Rich Results', icon: Code, href: '/tools/schema-generator', color: 'from-emerald-600 to-emerald-800', category: 'SEO', releaseDate: '2026-05-07' },
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{ name: 'API Latency Cost Calculator', description: 'Calculate the financial impact of network latency on your revenue', icon: TrendingDown, href: '/tools/api-latency-calculator', color: 'from-red-600 to-red-800', category: 'SEO' },
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{ name: 'WCAG Color Contrast Checker', description: 'Verify ADA and WCAG 2.1 accessibility compliance', icon: Palette, href: '/tools/color-contrast', color: 'from-pink-500 to-pink-700', category: 'Design', releaseDate: '2026-05-08' },
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{ name: 'Markdown to HTML Converter', description: 'Convert documentation to clean, semantic HTML code', icon: FileCode, href: '/tools/markdown-converter', color: 'from-violet-500 to-violet-700', category: 'Formatters', releaseDate: '2026-05-09' },
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