02 / THE MARKET Types of link building services, and where each one fits
Search for link building services and you will find hundreds of providers, from a freelancer working alone to full-service SEO agencies and a link marketplace or two. Most SEOs have tried several, and underneath the branding they sell the same few methods of backlink building. Each has a place in a link building strategy, and each has a catch.
Blogger outreach and guest posting services
The most common model. A link building agency runs link prospecting to find blogs in your niche, pitches each editor with a personal message, and pays for or earns guest posts carrying your backlink. Link outreach services and blog outreach services can secure editorial links on sites with real readers, and some agencies sell link prospecting services on their own.
The catch: outreach is slow, the best blogs are pitched constantly, and the sites happiest to publish guest posts often publish anything for anyone. Outreach compared with EntityLinks.
Niche edits and link insertions
Your backlink is inserted into an existing article that is already indexed and may already rank in the SERP. Link insertions are quick, and the page can bring some authority with it.
The catch: the article was written for something else, and a site that sells niche edits rarely sells just one per page.
Digital PR, HARO and press releases
Digital PR pitches stories, an infographic or original research to journalists, aiming for coverage in outlets like Forbes. Journalist requests through services such as HARO, and press releases, add brand mentions, visibility and awareness.
The catch: it can earn the strongest editorial backlinks there are, but outcomes are unpredictable, the cost per link is high, and press release links are usually nofollow or marked sponsored.
Citation building and directory submissions
Citation building services list a business on directories, map apps such as Google Maps, and data aggregators with a consistent name, address and phone number. For local SEO, accurate citations are foundational.
The catch: citations help a local business get found, but directory submissions pass little ranking strength on their own, and mass submissions leave a footprint.
Content syndication and link exchange services
Content syndication services republish your articles on other platforms for exposure. Link exchange services pair websites that agree to link to each other, sometimes through three-way swaps.
The catch: syndicated copies usually carry a canonical or nofollow link back to the original, and reciprocal link exchanges at scale are a link scheme Google names in its spam policies.
Broken link building and resource pages
A link builder finds broken links, unlinked brand mentions and resource pages in your industry, often with a backlink audit in Semrush or Ahrefs, then asks site owners to point them at your page instead. Link reclamation recovers links you have already earned.
The catch: it is manual and low in volume, and every link depends on a reply from a stranger.
Private blog networks and PBN links
A private blog network is a group of sites, often rebuilt on expired domains, run mainly to pass links. PBN links can move rankings, which is why they are still sold.
The catch: PBNs are what spam algorithms are trained to find, and when a shared network is found, everybody on it is affected. There is a better alternative to a PBN.