Scaling 250,000 Neighborhoods: Enterprise SEO at Apartments.com w/ Zach Chahalis

Zach Chahalis, VP of SEO at Apartments.com, joins Ross Hudgens for a deep dive into the high-stakes world of real estate SEO—where listings change daily, pages balloon into the hundreds of thousands, and competition is cutthroat across every SERP. They explore how Zach’s team manages SEO at scale, including 75+ site migrations, advanced internal linking via entity modeling, and custom AI agents built to streamline content operations. From avoiding redirect chains to handling rental “orphan pages,” this episode is packed with hard-earned lessons for SEOs working at enterprise scale. Plus: duplicate content, the future of AI search in real estate, and why your site should never go through a migration before Black Friday. Show Notes 0:08 – Zach’s role at Apartments.com and SEO in high-competition markets 1:00 – Biggest pitfalls in site migrations: communication and redirect logic 2:00 – Why bad redirect chains are like sending mail to your old address 3:39 – What to expect from traffic drops post-migration 5:06 – The difference between redesigns, CMS moves, and full migrations 7:42 – How entity linking models boost internal linking and relevance 9:55 – The user and SEO value of cross-linking neighborhood/location pages 11:51 – How Zach’s team measures and improves internal page authority 13:17 – Their in-house SEO testing program and what they’ve learned 15:01 – When they ignore positive SEO test results to preserve UX 16:41 – Managing orphaned rental pages and lifecycle SEO logic 19:05 – What they show users when listings go offline 21:24 – When to 404 vs. redirect in real estate or e-commerce 23:37 – Competing in a duplicate content world: data + experience wins 25:56 – Using proprietary data (e.g., 3D tours) to differentiate listings 27:28 – Real estate’s slower exposure to AI Overviews 28:19 – AI as productivity booster: writing, research, and landlord tools 30:46 – How internal teams use AI to speed up editorial content creation 33:50 – Why real estate is less impacted by AI than other verticals 35:59 – Indexing the long tail: 250K+ neighborhoods, 40K city pages 37:55 – Agentic workflows: surfacing internal data to speed up content 40:58 – How AI flags Fair Housing violations before content goes live 42:48 – Building secure, proprietary pipelines for real estate data 44:03 – Where to find Zach online Show Links Zach Chahalis on LinkedIn: https://www.linkedin.com/in/zacharychahalis Zach’s website: https://www.zacharychahalis.com Hyperlocal Content from a National Lens deck: https://speakerdeck.com/zjchahalis/hyperlocal-content-from-a-national-lens Apartments.com: https://www.apartments.com/Subscribe today for weekly tips: https://bit.ly/3dBM61f Listen on iTunes: https://podcasts.apple.com/us/podcast/content-and-conversation-seo-tips-from-siege-media/id1289467174 Listen on Spotify: https://open.spotify.com/show/1kiaFGXO5UcT2qXVRuXjsM Listen on Google: https://podcasts.google.com/feed/aHR0cHM6Ly9mZWVkcy5zaW1wbGVjYXN0LmNvbS9jT3NjUkdLeA Follow Siege on Twitter: http://twitter.com/siegemedia Follow Ross on Twitter: http://twitter.com/rosshudgens Directed by Cara Brown: https://twitter.com/cararbrown Email Ross: ross@siegemedia.com #seo | #contentmarketing