Craft CMS SEO Meta Tags

Craft CMS SEO Meta.twig

<meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="icon" type="image/png" href="{{ siteUrl }}favicon.png">
    <title>{% if homeTitle is defined %}{{ siteName }} | {{ entry.homeTitle }}{% elseif entry.title is defined %}{{ entry.title }} | {{ siteName }}{% else %}{{ title }} | {{ siteName }}{% endif %}</title>
    <link rel="stylesheet" href="{{ siteUrl }}assets/css/app.css" />
    <script src="{{ siteUrl }}assets/bower_components/modernizr/modernizr.js"></script>

    <!-- General Page Meta -->
    {% if entry.seoDescription is defined %}
        {% if entry.seoDescription is not empty %}
            <meta name="description" content="{{ entry.seoDescription }}">
        {% endif %}
    {% endif %}
    {% if entry.seoKeywords is defined %}
        {% if entry.seoKeywords is not empty %}
            <meta name="keywords" content="{{ entry.seoKeywords }}"> 
        {% endif %}
    {% endif %}

    <!-- Facebook Meta Tags -->
    {% if entry.title is defined %}
        <meta property="og:title" content="{{ entry.title }}">
    {% endif %}
    <meta property="og:site_name" content="{{ siteName }}">
    <meta property="og:url" content="{{ url(craft.request.path) }}">
    {% if entry.seoDescription is defined %}
        {% if entry.seoDescription is not empty %}
            <meta property="og:description" content="{{ entry.seoDescription }}">
        {% endif %}
    {% endif %}
    {% if entry.seoFeaturedImage is defined %}
        {% if entry.seoFeaturedImage is not empty %}
            <meta property="og:image" content="{% for image in entry.seoFeaturedImage %}{{ image.getUrl('seoSocialShareImage') }}{% endfor %}">
        {% endif %}
    {% endif %}
    <meta property="og:type" content="website">

    <!-- Twitter Meta Tags -->
    <meta name="twitter:card" content="summary_large_image">
    {% if entry.title is defined %}
        <meta name="twitter:title" content="{{ entry.title }}">
    {% endif %}
    {% if entry.seoDescription is defined %}
        {% if entry.seoDescription is not empty %}
            <meta name="twitter:description" content="{{ entry.seoDescription }}">
        {% endif %}
    {% endif %}
    {% if entry.seoFeaturedImage is defined %}
        {% if entry.seoFeaturedImage is not empty %}
            <meta name="twitter:image:src" content="{% for image in entry.seoFeaturedImage %}{{ image.getUrl('seoSocialShareImage') }}{% endfor %}">
        {% endif %}
    {% endif %}