Blog Commenting for SEO
Blog commenting for SEO is leaving relevant, helpful comments on other sites' blog posts to earn visibility, referral traffic, and occasional links, rather than trying to gain strong direct ranking value.
Key takeaways
- Blog commenting is a low-cost tactic for referral traffic and relationship building, not direct ranking power.
- Most comment links are nofollow, so focus on value, not link juice.
- Effective comments share insights, ask questions, or provide data—never generic praise.
- Consistency and relevance are key; target active blogs in your niche.
- Avoid spammy behavior: use your real name, add context, and engage with replies.
When done right, blog commenting can open doors to new audiences and partnerships.
Example: How a Single Comment Sparked a Partnership
Imagine you run a small SEO agency. You find a popular post on Search Engine Journal about 'Link Building in 2025.' You read it, then leave a thoughtful comment:
- Your comment: 'Great point about digital PR. In my experience, combining guestographics with targeted outreach doubled our referral traffic in three months. Has anyone tried that with smaller budgets?'
- Result: The author replies, other readers engage, and you get a few clicks to your site. Later, the author invites you to co-write a follow-up post, earning a dofollow link.
Key: The comment added value, showed expertise, and sparked a conversation—not just a link drop.
Quick-Start: 5 Steps to Effective Blog Commenting
- Find relevant blogs – Use search operators like
"your niche" + "blog" + "comment"or tools like BuzzSumo to find active blogs with recent posts and engaged comment sections. - Read the post thoroughly – Understand the author's argument, key points, and any gaps or questions you can address.
- Write a value-adding comment – Share a personal experience, a data point, a different perspective, or a thoughtful question. Avoid generic praise.
- Use your real name – Fill in the name field with your real name (not a brand or keyword). Optionally link to your website if relevant.
- Engage with replies – Check back to respond to the author or other commenters. This builds relationships and increases visibility.
How to Judge a Blog Worth Commenting On
- Active comment section – Recent comments (within the last month) and author replies indicate engagement.
- Relevance to your niche – The blog's topic should closely match your industry or target audience.
- Quality of content – Well-written, authoritative posts attract readers who may click through to your site.
- Comment policy – Check if the blog allows links in comments (some automatically nofollow or strip them).
- Domain authority – While not critical, higher authority sites can offer better visibility and referral traffic.
Common Mistakes to Avoid
- Posting generic praise – Comments like 'Great post!' add no value and are often ignored or marked as spam.
- Dropping a link without context – Self-promotional links without relevance to the discussion are a red flag.
- Using fake or brand-only names – Transparency builds trust; use your real name.
- Targeting irrelevant or low-quality blogs – Comments on abandoned or spammy sites won't reach your audience.
- One-off commenting – Consistency over time builds recognition and relationships.
Next step
FAQ
Does blog commenting help SEO?
Blog commenting can help SEO indirectly by driving referral traffic, building relationships, and increasing brand visibility. Most comment links are nofollow, so they do not directly pass ranking signals.
Are blog comment links nofollow?
Yes, most blog comment links are automatically set to nofollow by content management systems. This means they do not pass PageRank or influence search rankings directly.
How do I find blogs to comment on?
Use search operators like 'your niche + blog + comment' or tools like BuzzSumo. Look for blogs with active comment sections and recent posts.
What should I write in a blog comment?
Write a comment that adds value: share a personal experience, ask a thoughtful question, or provide additional insights. Avoid generic praise or self-promotion.
Related topics
Sources
- Google Search Central — Best source for Google's link and spam guidance, including how Google treats sitewide and user-generated links.
- Search Engine Journal — Widely cited SEO publication that has covered whether blog comments still help link building.
- Google Search Central: Link spam guidance — Relevant for understanding when comment links and other user-generated links may be treated as spam.
- Google Search Central: Link best practices — Useful for explaining link attributes and how Google evaluates outbound links.
Reviewed by Lucía Marín, Founding editor.