How to improve SEO in 2021

The fundamentals of SEO in 2021 haven't shifted dramatically, but Google's priorities have sharpened around three specific areas your clients should focus on. Core Web Vitals became an official ranking factor in June 2021, meaning page experience metrics—loading speed, visual stability, and interactivity—now directly influence where your client's pages rank. This means you need to audit their sites with Google's PageSpeed Insights and Search Console data, not just generic performance tools. Prioritize improving Largest Contentful Paint (LCP) by optimizing images, deferring non-critical JavaScript, and leveraging browser caching. For Cumulative Layout Shift (CLS), focus on image and video dimensions, avoiding unsized DOM elements, and managing ad/embed behavior. These aren't one-time fixes; they require ongoing optimization as you modify page templates and add new content. Your web designer clients especially need to understand that design aesthetics mean nothing if the page takes four seconds to load or shifts while someone's trying to click a button.

Beyond technical performance, E-E-A-T (Experience, Expertise, Authoriousness, Trustworthiness) became increasingly important for ranking in competitive niches. This isn't about adding generic author bios—it's about demonstrating genuine competence. For YMYL (Your Money Your Life) queries, you should be helping clients build proper author credentials, linking to verified professional backgrounds, and creating content that clearly shows the person writing actually knows their subject. This matters less for a local plumber's service pages and significantly more for anything touching health, finance, or legal advice.

Link building strategy should evolve toward relationship-based outreach rather than scalable link-scraping tactics. Tools like Semrush and Ahrefs let you identify relevant, high-authority pages in your niche that have actually linked to competitors. Reach out with specific value—a unique study, a correction to their existing resource, or genuinely helpful additions to their content. This takes more time per link but produces sustainable results without Google penalty risk.

Finally, create content clusters rather than isolated blog posts. Pick pillar topics your clients want to rank for, build comprehensive pillar content around them, then create 5-10 supporting articles that link back with relevant internal anchor text. This architectural approach signals topical authority to Google far better than randomly publishing blog posts. Search Console data and rank tracking show which topics actually drive traffic—use that data to guide your content strategy instead of guessing what might rank.