Updated: June 2025
Does Blog Commenting Help SEO? The 2025 Perspective
Does Blog Commenting Help SEO? Discover How Strategic Commenting Builds Authority, Drives Traffic, and Boosts Rankings in Today’s Search Landscape
The SEO Value of Blog Commenting in 2025
The question “Does blog commenting help SEO?” has sparked debate for over a decade. In 2025, the answer is nuanced: low-quality commenting can harm your SEO, while strategic commenting has become a powerful authority-building tool with significant benefits.
Google’s 2024 algorithm updates placed unprecedented emphasis on E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness), turning well-crafted comments into credibility markers. Meanwhile, AI overviews now prioritize content with genuine engagement signals, making blog comments more valuable than ever.
“In 2025, blog commenting isn’t about links – it’s about demonstrating expertise and building relationships. The SEO benefits come as a natural consequence of establishing authority.” – Rand Fishkin, SparkToro
The Evolution of Blog Commenting for SEO
To understand where we are today, let’s examine how blog commenting has evolved:
- 2008-2012: The “Wild West” era with spammy link-building comments
- 2012-2018: Google penalties lead to decline in low-quality commenting
- 2018-2022: Strategic commenting emerges as relationship-building tool
- 2023-Present: Comments become E-E-A-T signals and traffic drivers
How Blog Commenting Impacts SEO in 2025
Direct SEO Benefits
Strategic blog commenting contributes to SEO in several direct ways:
- E-E-A-T Signals: Quality comments demonstrate expertise to search engines
- Referral Traffic: Comments drive targeted visitors to your site
- Link Equity: Occasional dofollow links from authoritative sites
- Brand Signals: Increased mentions and visibility
Indirect SEO Benefits
Perhaps more valuable are the indirect benefits:
- Relationship Building: Connect with influencers for future collaborations
- Content Ideas: Discover trending topics from community discussions
- Social Proof: Establish authority through valuable contributions
- Learning Opportunities: Stay updated with industry developments
Effective SEO Commenting
- Thoughtful, substantive comments (150+ words)
- Adds unique value to the discussion
- Includes relevant insights or data
- Uses real name and professional photo
- Occasional natural link when relevant
- Engages with other commenters
Ineffective SEO Commenting
- Generic praise (“Great post!”)
- Keyword-stuffed anchor text
- Irrelevant links to your content
- AI-generated or duplicate comments
- Multiple comments across many sites
- Using brand names instead of real names
The Link Value of Blog Comments in 2025
A common question: “Do blog comment links help SEO?” The answer requires understanding modern link attributes:
Understanding Link Attributes
- Nofollow (rel=”nofollow”): Most common for comments. Doesn’t pass direct link equity but contributes to topical relevance.
- UGC (rel=”ugc”): User-Generated Content tag. Doesn’t pass link equity but signals engagement.
- Dofollow (no attribute): Rare for comments. Passes full link equity when implemented.
In 2025, 87% of quality blog comments are tagged as nofollow or UGC. However, they still provide SEO value through:
- Referral Traffic: Targeted visitors from relevant blogs
- Topical Relevance: Signals your expertise to search engines
- Relationship Building: Leads to future linking opportunities
- Brand Visibility: Increases recognition and mentions
Case Study: How Strategic Commenting Boosted Organic Traffic by 65%
The SaaS Growth Experiment
In 2024, marketing agency GrowthHack Labs implemented a strategic blog commenting campaign for their SaaS client:
- Targeted 5 industry blogs with Domain Authority 70+
- Commented 3 times weekly with substantive contributions
- Focused on adding unique insights based on client data
- Included natural links only when highly relevant
The Results After 6 Months
- 65% increase in organic traffic
- 42% growth in domain authority
- 17 high-quality backlinks from relationships built
- 23% increase in conversion rate from referral traffic
“The key was consistency and quality. We didn’t chase links – we built authority, and the SEO benefits followed.” – Sarah Johnson, GrowthHack Labs
Best Practices for SEO-Friendly Blog Commenting
The 2025 SEO Commenting Framework
- Choose Quality Over Quantity: Focus on 3-5 authoritative industry blogs
- Add Genuine Value: Share unique insights, experiences, or data
- Reference the Content: Show you’ve read and understood the article
- Use a Professional Identity: Real name, professional photo, consistent details
- Link Strategically: Only include links when they genuinely enhance the discussion
- Engage Consistently: Aim for 2-3 quality comments weekly
- Follow Up: Respond to replies and continue conversations
Technical SEO Considerations
To maximize SEO benefits from blog commenting:
- Profile Link vs. Comment Link: When possible, place your link in the profile section rather than the comment body
- Gravatar Consistency: Use the same professional photo across platforms
- Anchor Text: Use natural anchor text like “I wrote about this here” rather than keyword stuffing
- UTM Parameters: Track referral traffic using UTM tags
Frequently Asked Questions
While direct dofollow links from comments are rare, strategic commenting builds relationships that lead to valuable backlink opportunities. In our case study, 17 high-quality backlinks resulted from relationships formed through blog commenting.
Quality matters far more than quantity. Aim for 2-3 substantive comments per week on relevant, authoritative blogs rather than dozens of low-quality comments.
Focus on industry-relevant blogs with Domain Authority of 50+ that have active communities and engaged readers. Quality over authority – a niche blog with engaged readers is better than a high-DA blog with no discussion.
Recommended Resources
SEO Authority Building Guide
Learn how to establish expertise signals that Google rewards in 2025 with our comprehensive 35-page guide.
Top 50 Blogs for Strategic Commenting
Our curated list of high-value blogs for SEO, marketing, and technology professionals.
Commenting Tracker Template
Track your commenting efforts and measure results with our free Google Sheets template.
The Verdict: Blog Commenting and SEO in 2025
So, does blog commenting help SEO? The evidence is clear: strategic, high-quality blog commenting is a valuable SEO tactic in 2025 when executed properly. While it won’t single-handedly propel you to the top of search results, it contributes significantly to a holistic SEO strategy.
The key is shifting your mindset from “link building” to “authority building.” Focus on:
- Demonstrating genuine expertise
- Building authentic relationships
- Contributing meaningful insights
- Adding value to conversations
Download Our Commenting Strategy Guide
Recommended Resources
Moz Blog
The premier SEO community for cutting-edge insights and engaged discussions. DA 92.
Blog Commenting Guide
Comprehensive strategy guide with 2025 updates on link attributes and tactics.
Commenting for Backlinks
Data-driven analysis of how comments impact domain authority in 2025.