cat << 'EOF' > /var/www/dnscheck.indiatips.in/templates/index.html
{% extends "base.html" %}

{% block title %}DNS Checker - Home{% endblock %}

{% block content %}
<div class="row">
    <div class="col-md-12">
        <h1 class="mb-4">DNS Diagnostic Tool</h1>
        <p class="lead">Comprehensive DNS, SSL, HTTP, and Mail server diagnostic tool</p>
    </div>
</div>

<div class="row">
    <div class="col-md-3 mb-3">
        <div class="card h-100">
            <div class="card-body">
                <h5 class="card-title">DNS Check</h5>
                <p class="card-text">Query DNS records, check propagation, and validate DNSSEC</p>
                <a href="/dns" class="btn btn-primary">Go to DNS Check</a>
            </div>
        </div>
    </div>
    <div class="col-md-3 mb-3">
        <div class="card h-100">
            <div class="card-body">
                <h5 class="card-title">SSL Check</h5>
                <p class="card-text">Check SSL certificate validity, expiry, and security</p>
                <a href="/ssl" class="btn btn-primary">Go to SSL Check</a>
            </div>
        </div>
    </div>
    <div class="col-md-3 mb-3">
        <div class="card h-100">
            <div class="card-body">
                <h5 class="card-title">HTTP Check</h5>
                <p class="card-text">Analyze HTTP headers, redirects, and response times</p>
                <a href="/http" class="btn btn-primary">Go to HTTP Check</a>
            </div>
        </div>
    </div>
    <div class="col-md-3 mb-3">
        <div class="card h-100">
            <div class="card-body">
                <h5 class="card-title">Mail Check</h5>
                <p class="card-text">Validate MX records, SPF, DKIM, DMARC, and RBL listings</p>
                <a href="/mail" class="btn btn-primary">Go to Mail Check</a>
            </div>
        </div>
    </div>
</div>

<div class="row mt-4">
    <div class="col-md-12">
        <h3>Features</h3>
        <ul class="list-group list-group-flush">
            <li class="list-group-item">DNS record queries (A, AAAA, MX, TXT, NS, SOA, etc.)</li>
            <li class="list-group-item">DNSSEC validation</li>
            <li class="list-group-item">SSL certificate checks (expiry, SAN, issuer)</li>
            <li class="list-group-item">HTTP/HTTPS analysis with redirect tracking</li>
            <li class="list-group-item">Mail server validation (MX, SPF, DKIM, DMARC)</li>
            <li class="list-group-item">RBL listing checks</li>
            <li class="list-group-item">DNS propagation comparison</li>
            <li class="list-group-item">Zone transfer tests</li>
            <li class="list-group-item">Historical reports and comparisons</li>
        </ul>
    </div>
</div>
{% endblock %}
EOF