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Core SEO

Comment Spam

Niraj Raut Niraj Raut 2 min read Core SEO
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💡 Think of it like this: Comment Spam is like a referral from a trusted colleague. When a respected website links to yours, it tells Google: ‘This person knows what they’re talking about.’

Quick Facts: Comment Spam
Category Link Building
Difficulty Level Intermediate
Affects Domain Authority, Rankings, Referral Traffic
Tools to Measure Ahrefs, Moz Link Explorer, Hunter.io, BuzzSumo
Related Terms Blog Commenting Link Building, Automated Link Building, Black Hat Seo

How Comment Spam Works

Comment spam is the practice of posting automated or manual comments on blog posts, forum threads, news sites, and other platforms with the sole purpose of inserting a backlink to your website. These comments typically add no genuine value to the discussion — they are often generic phrases like “Great article! Check out my site…” followed by a URL.

Why Comment Spam Matters for SEO

Beyond being ethically questionable, comment spam is largely useless for SEO in today’s landscape: If you’re unsure how Comment Spam is impacting your site, working with an experienced SEO consultant can help you identify the problem and fix it efficiently.

Common Comment Spam Mistakes

WordPress sites receive an enormous volume of comment spam — Akismet, the leading spam filter plugin, filters over 7.5 million spam comments per hour globally. This shows how automated and widespread the practice has become, which in turn has made site owners extremely suspicious of all comments containing external links.

Do’s and Don’ts: Comment Spam

✅ Do This ❌ Don’t Do This
✅ Pursue resource page link building by pitching your content to relevant pages ❌ Use automated link building tools — they generate spammy, low-quality links
✅ Use descriptive anchor text that reflects the content being linked to ❌ Over-optimise anchor text with exact-match keywords — it signals manipulation
✅ Monitor new and lost backlinks weekly with Ahrefs or SEMrush ❌ Ignore link velocity — sudden spikes in link acquisition look unnatural

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TL;DR: The practice of posting irrelevant or low-value comments on blog posts, forums, and other sites…

If you remember one thing — focus on how Comment Spam affects your users first, then optimise for search engines second.

Frequently Asked Questions

An important SEO concept that affects how search engines discover, evaluate, and rank your website
Comment Spam directly influences how search engines understand and rank your pages. Websites that get this right tend to see stronger organic visibility, better crawl efficiency, and more consistent traffic growth over time.
Start by auditing your current setup using tools like Google Search Console, Screaming Frog, or Ahrefs. Identify the gaps, prioritise by impact, and apply fixes methodically. Working with an experienced SEO consultant can help you cut through complexity and see results faster.
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Niraj Raut
Niraj Raut
SEO Consultant & Strategist

SEO consultant helping service businesses in Nepal and beyond grow through organic search. I write about technical SEO, content strategy, and building durable search presence without the fluff.

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