Link building companies typically offer a mix of strategy, outreach, content creation, and reporting services. Their work often includes competitor analysis, backlink research, campaign planning, link prospecting, outreach, performance tracking, and ongoing optimization. 

Key services include: 

• Backlink audit: Reviewing your backlink profile to identify harmful or low-quality links, spammy referring domains, and broken links or pages that may affect SEO performance. 
• Blogger outreach: Reaching out to relevant bloggers, publishers, influencers, and content creators to secure brand mentions and backlinks. 
• Guest posting: Creating content for authoritative, relevant third-party websites that includes a contextual link back to your site. 
• Linkable asset creation: Developing high-value content such as infographics, original research, guides, tools, or calculators that naturally attract backlinks. 
• Broken link building: Finding broken links on other websites and suggesting your content as a relevant replacement. 
• Digital PR: Earning backlinks through media outreach, press coverage, expert commentary, and newsworthy campaigns. 

Many link building companies also provide digital marketing services, including search engine optimization (SEO), local SEO, content marketing, and social media marketing.  

The cost of link building services varies, depending on service type and scope, target niche, competition level, link quality, editorial fees, and engagement level. 

For instance, a B2B link building agency may charge around $150-$300 per placement for sites with a domain authority (DA) of 20-30 and $600-$1,500 per placement for sites with a DA of 50+. 

Below are the approximate price ranges of link building services: 

• Guest posting: $150-$1,500 per link 
• Niche edits: $150-$300 per link 
• Link insertion: $75-$2,000 per link 
• Digital PR: $2,000-$15,000 per month 
• Content creation: $5,000-$20,000+ per month 
• SEO campaigns: $3,000-$15,000+ per month 
• Managed link building: $1,500-$3,000 per month for small projects, and $7,000-$15,000 for enterprise-level work 

White-hat link building refers to ethical, guideline-compliant strategies used to earn backlinks that provide real value to users. Reputable link building companies use these methods to build authority over time through relevant outreach, strong content, and credible placements. 

Examples of white-hat link building include:  

• Creating useful, original content that people naturally want to reference 
• Earning links from relevant, trustworthy websites in your industry 
• Securing contextual links that fit naturally within high-quality content 
• Building a diverse backlink profile across different referring domains 
• Using digital PR, guest posting, and outreach in a relevant and transparent way 

Black-hat link building, by contrast, uses manipulative tactics designed to influence rankings without providing real value. These methods may produce short-term gains, but they can also lead to search engine penalties, lost trust, and long-term SEO damage. 

Examples of black-hat link building include: 

• Buying links to manipulate search rankings 
• Excessive link exchanges 
• Spamming blogs, forums, or comment sections with links 
• Hiding links or text in content 
• Using link farms, private blog networks (PBNs), or automated link building tools 

Backlinks can influence AI search visibility indirectly by strengthening your site's authority, discoverability, and performance in traditional search. In practice, sites with stronger backlink profiles often earn better organic visibility, and that can increase their chances of being surfaced or cited in AI search experiences.  

However, backlinks are only one part of the picture. Content quality, relevance, crawlability, and overall site trust also matter. Google's guidance for AI Overviews says standard SEO best practices still apply, rather than any separate AI-specific optimization. 

According to industry research, 76% of pages cited in AI overviews rank in the top 10 of Google's search results. Moreover, it observed positive correlations between link quality and AI mentions. 

The answer will depend on your internal capabilities, marketing goals, timeline, and budget. 

Hire a link building agency if:  

• You do not have the in-house expertise or resources to build and manage a consistent link building strategy. 
• You need to scale quickly or compete in a highly competitive industry where outreach experience and publisher relationships matter. 
• You need a team with proven processes for prospecting, outreach, content placement, and reporting. 

Keep it in-house if: 

• You are running a small or limited campaign that does not justify agency costs. 
• You already have a dedicated SEO, content, or outreach team with the capacity to manage link building internally. 
• You want greater control over strategy, messaging, and day-to-day execution. 
• Your business relies heavily on internal subject-matter expertise, making it easier for your own team to create and pitch link-worthy content.