Third-party listicles generated most early AI citation signals in two generative engine optimization , or GEO, experiments published by Search Engine Land. The clearest result came from a 30-day cold-start test for a SaaS link-building agency, where third-party listicles accounted for 85.8% of source mentions , compared with 14.0% for the brand's own listicle and 0.2% for PR. The findings matter because visibility in AI-generated answers is not simply a matter of publishing more content on ...