How to Improve SEO and Web Ranking? Guide 2026 | Xulum.com

What is SEO?

SEO (Search Engine Optimization) is the set of techniques and strategies aimed at improving the visibility of a website in the organic results of search engines like Google, Bing or Yahoo. Unlike paid advertising (SEM), SEO works on natural ranking, generating sustained traffic over the long term.

When a user searches for "web design in Buenos Aires", Google analyzes thousands of variables to decide which pages to show first. Your goal is for your website to be considered the most relevant and trustworthy result for that search.

Types of SEO: On-Page and Off-Page

SEO is divided into two main categories that work together:

• On-Page SEO: everything you can optimize within your own site — titles, descriptions, URL structure, content, images, loading speed and user experience.
• Off-Page SEO: external actions that strengthen your domain authority, mainly obtaining links (backlinks) from other quality sites.
• Technical SEO: structural aspects like sitemap.xml, robots.txt, HTTPS, structured data and correct page indexing.

Step 1: Run an SEO Audit

Before applying any improvements, it's essential to understand the current state of your site. An SEO audit helps you identify:

• Crawling and indexing errors
• Pages with duplicate content
• Images missing alt text
• Missing or duplicate titles and meta descriptions
• Page speed issues
• Poor URL structure

Free tools for your audit: Google Search Console, Google PageSpeed Insights and Screaming Frog (free limited version).

Step 2: Research Your Keywords

Keyword research means identifying what terms your target audience uses when searching for products or services like yours. To do it right:

• Use Google Keyword Planner or Ubersuggest to find keywords with good search volume and manageable competition.
• Prioritize long-tail keywords (specific, longer phrases) — they have less competition and higher buying intent. For example: "web design agency in Miami" rather than just "web design".
• Analyze your competitors' keywords using tools like SEMrush or Ahrefs.

Step 3: Create Quality Content

Google rewards useful, original and thorough content. Key rules:

• Use your main keyword in the title (H1), in the first paragraphs and naturally throughout the text.
• Structure content with subheadings (H2, H3) to improve readability.
• Write for users first, not for robots. Google penalizes keyword stuffing.
• Update existing content regularly — Google values pages that stay current.
• Include images with descriptive and relevant alt attributes.

Step 4: Optimize Your Page Speed

Page speed has been an official ranking factor since 2010 and gained even more weight with Google's Core Web Vitals (2021). A slow site loses visitors and rankings. To improve speed:

• Compress images using modern formats like WebP.
• Implement lazy loading for images below the fold.
• Use a CDN (Content Delivery Network) to serve resources from the server closest to your user.
• Minify CSS and JavaScript files.
• Enable browser caching.

Step 5: Mobile-First Design

More than 60% of global web traffic comes from mobile devices. Since 2019, Google uses Mobile-First Indexing, meaning it indexes and ranks your site based on its mobile version. If your site isn't optimized for mobile, you're losing rankings and customers.

Check how your site looks on mobile with Google's Mobile-Friendly Test.

Step 6: Link Building Strategy

Backlinks (links from other sites to yours) are one of Google's most important ranking factors. The more relevant, quality sites that link to you, the higher your domain authority. Effective strategies:

• Publish guest posts on industry blogs.
• Create content so valuable that others naturally want to link to it (infographics, statistics, guides).
• Register your business in quality directories and on Google Business Profile.
• Get mentions in local or industry media.

Step 7: Measure and Adjust Results

SEO is a continuous process, not a one-time action. It's essential to monitor results to identify what's working and what needs adjusting. Key metrics:

• Average position of your keywords (Google Search Console).
• Organic traffic and bounce rate (Google Analytics).
• CTR (Click-Through Rate) of your Google results.
• Core Web Vitals: LCP, FID and CLS.