SERPninja

SERPninja is based in Toronto, Canada, and operates as a link building service provider working primarily with digital marketing agencies and consultants rather than directly with end businesses. The team, sized between one and ten people, positions itself as a white label partner, fulfilling link building orders on behalf of agency clients who then present the work under their own branding. Its client base spans general SEO agencies as well as specialised sectors such as casino and gambling, marijuana and CBD, and SaaS companies. The service catalogue centres on niche edits, described as links placed into existing, already-authoritative content to pass on SEO value, and guest posts, which involve hand-written content published on established sites, with ideation, content creation and prospecting handled as part of the offering. Additional services include listicle backlinks, PBN setups and PBN rentals, local citations, Google Business Profile (GMB) verification, social signals, and managed link building programs. SERPninja also publishes a set of free SEO tools, including a keyword cannibalisation checker, meta description generator, content outline generator, website traffic estimator, DA checker, and Flesch-Kincaid calculator, alongside an SEO course and citation lists, supporting agencies and consultants in their broader link building and content workflows.