# SEO.co > SEO.co is a full-service SEO company and SEO agency. We engineer organic visibility across both traditional search and AI answer engines — technical SEO, on-page content, editorial link building, local SEO, and generative engine optimization (GEO/AEO) for Fortune 500s and venture-backed startups. Operating since 2010. SEO.co is part of a network of specialist marketing and technology brands. Services are sold as ongoing engagements, typically scoped from an initial audit and 90-day roadmap. Contact: info@seo.co, +1 (206) 678-0188. ## Primary pages - [Home](https://seo.co/): Full-service SEO company and SEO agency — technical SEO, link building, local SEO, and AI search optimization since 2010. - [Homepage (plain text)](https://seo.co/index.md): Markdown version of the homepage: services, process, comparison table, and FAQs as readable text. - [SEO Services](https://seo.co/services/): The full service catalog — technical, on-page, local, ecommerce, and enterprise SEO. - [AI SEO / GEO](https://seo.co/ai/): Generative and answer engine optimization for ChatGPT, Perplexity, Claude, Gemini, and Google AI Overviews. - [Our Approach](https://seo.co/process/): How an engagement runs: audit, roadmap, execution, measurement. - [Case Studies](https://seo.co/case-studies/): Named-brand results, including GoDaddy, Hewlett Packard, and Expedia. - [About](https://seo.co/about/): Company history — building SEO campaigns since 2010. - [Team](https://seo.co/team/): The strategists, engineers, and writers who do the work. - [Blog](https://seo.co/blog/): Technical SEO, content marketing, and AI search analysis. - [Contact](https://seo.co/contact/): Start a project conversation. ## Services - [SEO Services](https://seo.co/services/): Full-stack SEO strategy and execution. - [On Page SEO](https://seo.co/on-page-seo/): Content, entity, and structure optimization. - [Local SEO](https://seo.co/local-seo/): Maps, GBP, citations, and local visibility. - [SEO Audits](https://seo.co/audit/): Technical, content, and backlink diagnostics. - [Link Building](https://seo.co/link-building/): Editorial links from real publications. - [White Label SEO](https://seo.co/white-label/): Agency-grade execution under your brand. - [AI SEO / GEO](https://seo.co/ai/): Visibility in ChatGPT, Perplexity, Claude, Gemini. ## Free SEO tools - [Site Audit](https://seo.co/tools/audit/): Crawl-based technical site audit. - [Site Speed Tester](https://seo.co/tools/site-speed-tester/): Core Web Vitals and LCP analysis. - [Title Tag Checker](https://seo.co/tools/title-tag-checker/): Inspect title tags at scale. - [Backlink Checker](https://seo.co/tools/backlink-checker/): Inspect a domain's backlink profile. - [Broken Link Checker](https://seo.co/tools/broken-link-checker/): Find broken links across a site. - [Sitemap Validator](https://seo.co/tools/sitemap-validator/): Validate XML sitemap structure. - [Robots.txt Tester](https://seo.co/tools/robots-txt-tester/): Inspect crawler directives. - [AI SEO Prompts](https://seo.co/tools/ai-prompts/): 20 copy/paste agent automation recipes. ## Results & company - [SEO Case Studies](https://seo.co/case-studies/): Named brands. Measurable outcomes. - [SEO Blog](https://seo.co/blog/): Research, frameworks, and field notes. - [Our Team](https://seo.co/team/): The people behind the work. - [Our Approach](https://seo.co/process/): How we operate and why it works. - [Our History](https://seo.co/about/): Building SEO since 2010. ## Recent articles - [How to Predict, Control and Manage SERP Rankings Volatility](https://seo.co/blog/rankings-volatility/): Learn what causes SERP rankings volatility in 2026, how to measure real impact versus noise, and the technical fixes that stabilize organic visibility. - [llms.txt Adoption in 2026 and Whether Yours Is Worth Building](https://seo.co/blog/llms-txt-adoption-statistics/): See current llms.txt adoption rates, which LLMs actually read the file, and whether publishing one is worth the engineering time for your site in 2026. - [Why AEO and GEO Are Not the Same as Traditional SEO](https://seo.co/blog/aeo-geo-vs-traditional-seo/): AEO and GEO reward different signals than classic SEO. Here is how ranking, retrieval, and citation actually work inside ChatGPT, Perplexity, Claude, and Gemini. - [How Long Does SEO Take to Work for Law Firms? (Realistic Timelines & Expectations)](https://seo.co/law/seo-timeline/): A realistic, month-by-month breakdown of how long legal SEO actually takes to produce rankings, traffic, and clients — and what speeds results up or slows them down. - [How Much Do Small vs. Large Law Firms Need to Spend on SEO to Stay Competitive?](https://seo.co/law/seo-budget/): What solo practitioners, mid-sized firms, and 50+ attorney firms actually need to spend on SEO each month – and what that money buys. - [Search Everywhere Optimization: The New and Improved SEO](https://seo.co/search-everywhere-optimization/) - [Why Isn’t My Law Firm Ranking on Google? Common SEO Mistakes to Avoid](https://seo.co/law/law-firm-website-not-ranking/) - [Content Audit: How to Optimize Your Site By Cleaning Up Old Content](https://seo.co/audit/content/): A step-by-step content audit process for cleaning up old content — and the AI-era content audit layer that decides whether answer engines can find, extract and cite you at all. - [How to Outrank Big Brands in SEO](https://seo.co/outrank-big-brands/) - [Page-Level vs. Object-Level Targeting: The New Frontier of SEO in the AI Era](https://seo.co/ai/page-level-vs-object-level-targeting/) - [Backlink Audit: A Guide to Link Profile Analysis in SEO](https://seo.co/audit/backlink/) - [SEO Reseller: Pros & Cons of Reselling SEO Services](https://seo.co/seo-reseller/) - [What Is Second Tier Link Building & How Can it Boost Your SEO](https://seo.co/second-tier-link-building/) - [SEO Pricing: How Much Should You Pay for SEO Services in 2026?](https://seo.co/seo-pricing/) - [SEO Strategies to Abandon](https://seo.co/seo-strategies-to-abandon/) - [What is Programmatic Advertising & How Does it Help SEO?](https://seo.co/programmatic-advertising/) - [11 Top Law Firm SEO Companies to Grow Your Legal Practice in 2026](https://seo.co/law/top-law-firm-seo-companies/) - [Top 14 Best SEO Consultants in 2026](https://seo.co/best-seo-consultants/) - [14 Ideas for Local SEO Content](https://seo.co/local-seo/content/) - [How to Promote Your Content Online in 2026](https://seo.co/content-promotion/) - [How Do I Grow Organic Traffic in 2026?](https://seo.co/organic-traffic/) - [How Do I Get High Quality Backlinks in 2026?](https://seo.co/link-building/high-quality-backlinks/) - [Top Legal Software Tools in 2026](https://seo.co/law/best-legal-software/) - [Should You Be Using a Private Blog Network (PBN) for Link Building in 2026?](https://seo.co/pbn/) - [How to Drive Traffic with Zero Search Volume Keywords](https://seo.co/zero-search-volume/) - [SEO Hacking: The Top 32 White Hat SEO Hacks for 2026](https://seo.co/seo-hacks/) - [How to Optimize Your Google Business Profile (GBP) to Improve Local SEO](https://seo.co/local-seo/google-business-profile/) - [Top 50 SEO & Marketing Blogs & Influencers for 2026](https://seo.co/marketing-blogs/) - [SEO Is Binary: Below the Fold Is the New Page 2](https://seo.co/seo-is-binary/) - [Digital Marketing Services: A Comprehensive Guide for 2026](https://seo.co/digital-marketing/) - [Best Digital Marketing Strategies for Lawyers in 2026 & Beyond](https://seo.co/law/digital-marketing/) - [Digital Marketing Trends: 11 Must-Follow Marketing Trends In 2026](https://seo.co/digital-marketing/trends/) - [Using Rich Snippets to Improve SEO, Link Building & Click-throughs](https://seo.co/rich-snippets/) - [How to Use Podcasts for SEO and Link Building in 2026](https://seo.co/podcasting/) - [Video SEO: Optimizing & Promoting Your Videos for SEO in 2026](https://seo.co/video-seo/) - [Are Infographics Still Valuable for SEO in 2026?](https://seo.co/infographics/) - [Top 200 Google Ranking Factors: 2026 Complete List](https://seo.co/google-ranking-factors/) - [Link Exchanges & Reciprocal Link Building: Are Link Exchanges Safe for SEO in 2026?](https://seo.co/link-exchange/) - [Content Automation in 2026: AI, Google Signals & De‑Indexation Risks](https://seo.co/content-automation/) - [Negative SEO: Is Negative SEO (aka "Google Bowling") Still Real in 2026?](https://seo.co/negative-seo/) ## Sister brands - [Digital.Marketing](https://digital.marketing/?=seodotco): AI digital marketing agency built for scale. - [PPC.co](https://ppc.co/?=seodotco): Paid media management services. - [DEV.co](https://dev.co/?=seodotco): Web & software development services. - [VID.co](https://vid.co/?=seodotco): Video production & video marketing services. - [Link.Build](https://link.build/?=seodotco): Link building services. - [LLM.co](https://llm.co/?=seodotco): Custom, private LLMs. ## Optional - [Privacy Policy](https://seo.co/privacy-policy/) - [Terms](https://seo.co/terms/) - [Services Agreement](https://seo.co/services-agreement/) ## Full content map Complete index of all ~601 articles plus every service, tool, and location page: https://seo.co/sitemap.xml