SEO Fundamentals

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<!-- On-Page SEO -->
<title>Best Digital Marketing Course | SukhNexus</title>
<meta name="description" content="Learn digital marketing...">
<h1>Digital Marketing Course</h1>
<img alt="SEO tutorial" src="seo.jpg">

<!-- Internal Linking -->
<a href="/seo-guide">SEO Guide</a>

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def seo_score(factors):
    weights = {
        "title_tag": 15, "meta_desc": 10, "headers": 10,
        "content_quality": 20, "backlinks": 15, "speed": 10,
        "mobile_friendly": 10, "internal_links": 10
    }
    total = 0
    for factor, present in factors.items():
        if present and factor in weights:
            total += weights[factor]
    return min(total, 100)

score = seo_score({
    "title_tag": True, "meta_desc": True, "headers": True,
    "content_quality": True, "backlinks": False, "speed": True,
    "mobile_friendly": True, "internal_links": True
})
print(f"SEO Score: {score}/100")