SEO Marketing: How to Check a Website’s SEO Properly

Mercer Daniel
Mercer Daniel
• 8 min read

For any business operating online, understanding a website's search engine optimization (SEO) performance is not optional; it's foundational to digital growth. A proper SEO check moves beyond surface-level keyword rankings, delving into the technical, content, and authority signals that dictate visibility and user experience. This systematic evaluation identifies critical bottlenecks, uncovers opportunities for competitive advantage, and informs strategic adjustments that directly impact organic traffic, lead generation, and revenue. Without a structured approach to auditing these elements, marketing efforts risk being misdirected, leading to wasted resources and missed market share.

Technical Foundations: Ensuring Search Engine Accessibility

The bedrock of any successful SEO strategy lies in a website's technical health. Search engines must efficiently crawl and index content to display it in search results. A thorough technical audit identifies barriers that prevent this, impacting visibility at the most fundamental level.

Crawlability and Indexability Checks

Verify that search engine bots can access and process all intended pages. This involves reviewing robots.txt files to ensure no critical sections are inadvertently blocked, and examining XML sitemaps to confirm all important URLs are submitted for indexing. A site's HTTP status codes should be clean, with minimal 4xx (client errors) or 5xx (server errors) for live pages, and appropriate 3xx (redirects) implemented to consolidate link equity. Large numbers of broken links or redirect chains can dilute authority and waste crawl budget.

Site Speed and Core Web Vitals Assessment

Page load speed and responsiveness are direct ranking factors and critical user experience signals. Evaluate Core Web Vitals metrics, including Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and First Input Delay (FID). LCP measures loading performance, CLS quantifies visual stability, and FID assesses interactivity. Optimizing these metrics often involves image compression, leveraging browser caching, minimizing render-blocking resources (CSS and JavaScript), and utilizing content delivery networks (CDNs). Slow sites deter users and signal poor quality to search engines.

Mobile Responsiveness and Usability

With mobile-first indexing, a site's performance on mobile devices is paramount. Every page must render correctly and be fully functional across various screen sizes. Test for touch-friendly elements, readable font sizes, and absence of horizontal scrolling. Mobile usability directly influences engagement and conversions, as users expect a seamless experience regardless of device.

Structured Data Implementation

Implementing schema markup (structured data) helps search engines understand the context of your content, potentially leading to rich results (e.g., star ratings, FAQs, product details) in search. Audit existing schema for accuracy, completeness, and adherence to guidelines. Incorrect or incomplete schema can be ignored or even penalized, missing an opportunity to enhance visibility and click-through rates.

On-Page Content and Keyword Relevance

Content quality and its alignment with user intent are central to attracting and engaging an audience. An effective on-page audit ensures that each page serves a clear purpose and communicates its value to both users and search engines.

Content Quality and Topical Authority

Assess content for originality, depth, accuracy, and comprehensiveness. Does it fully address user queries? Is it more valuable than competitor content? High-quality content establishes topical authority, signaling expertise and trustworthiness. Identify thin content, duplicate content issues, or pages with low engagement that may require consolidation, expansion, or removal.

Keyword Integration and Density

Evaluate how target keywords are naturally integrated into content. Avoid keyword stuffing, which can lead to penalties. Instead, focus on semantic SEO, using related terms and phrases that demonstrate a deeper understanding of the topic. Each page should target a primary keyword or a tightly related cluster of keywords, aligning with specific user search intent (informational, navigational, commercial, transactional). Beyond content, you should also check a website's rankings to gauge its current standing against competitors.

Meta Elements and Heading Structure

Review meta titles and descriptions for clarity, keyword inclusion, and compelling calls to action. These elements are often the first impression users have in search results. Heading tags (H1, H2, H3, etc.) should provide a logical structure to the content, improving readability and helping search engines understand the hierarchy of information on the page. Ensure only one H1 per page, accurately reflecting the main topic.

Internal Linking Strategy

An effective internal linking structure distributes page authority, guides users through relevant content, and helps search engines discover new pages. Audit internal links for relevancy, anchor text quality, and distribution. Look for orphaned pages (pages with no internal links) or pages with excessive internal links, which can dilute their impact.

Pro Tip: Prioritize fixes by impact and effort. Not all SEO issues are equal. Focus first on high-impact technical problems that block indexing or severely degrade user experience, then move to on-page optimizations that align with high-value keywords. Small, easy fixes can often yield quick wins, but don't shy away from larger structural changes if the data supports their long-term value.

Off-Page Authority: Building External Trust Signals

Off-page SEO primarily concerns external signals that indicate a website's authority, trustworthiness, and relevance. These signals are largely driven by backlinks and brand mentions.

Backlink Profile Analysis

Analyze the quantity, quality, and relevance of incoming backlinks. A strong backlink profile consists of links from reputable, authoritative, and topically relevant websites. Identify and disavow harmful or spammy links that could negatively impact rankings. Look for opportunities to acquire new, high-quality backlinks through content promotion, outreach, and digital PR efforts. Anchor text diversity is also crucial; a natural profile avoids over-optimization with exact-match keywords.

Brand Mentions and Reputation

Monitor online mentions of your brand, even those without direct links. Search engines factor unlinked brand mentions into their understanding of a brand's authority and popularity. Address negative sentiment promptly and strategically, as online reputation directly influences user trust and click-through rates from search results.

User Experience: Beyond the Algorithm

While often intertwined with technical SEO, user experience (UX) extends to how users interact with your content and site layout. Positive UX signals reinforce a site's value to search engines.

Engagement Metrics and User Flow

Examine metrics such as bounce rate, time on page, and conversion rates. High bounce rates or low time on page can indicate that content isn't meeting user expectations or that the site navigation is confusing. Analyze user flow through analytics to identify drop-off points or areas where users struggle, then optimize content and design to improve engagement and guide users toward desired actions.

Competitive Landscape: Benchmarking and Opportunity

A comprehensive SEO check includes an analysis of competitors. Understanding what works for others can reveal untapped opportunities and help refine your own strategy.

Identifying Keyword Gaps

Discover keywords your competitors rank for, but you don't. This can reveal new content topics, product categories, or service offerings that align with user demand. Look for low-difficulty, high-volume keywords where competitors have weaker content.

Analyzing Competitor Backlink Strategies

Examine the backlink profiles of top-ranking competitors. Identify common sources of links, guest post opportunities, or industry publications they've secured mentions from. This can provide a roadmap for your own link-building efforts, focusing on acquiring links from similar high-authority domains.

Synthesizing Your Findings for Action

A proper SEO check culminates in a clear, prioritized action plan. Group identified issues by category (technical, on-page, off-page, UX) and assign a severity level and estimated impact. Develop a roadmap for implementation, ensuring that high-impact, low-effort fixes are addressed first to demonstrate immediate value. Regularly monitor the effects of these changes using analytics and search console data to iterate and refine your strategy. SEO is an ongoing process, not a one-time fix; continuous auditing and adaptation are essential for sustained organic growth.

Frequently Asked Questions

  • How often should I check my website's SEO?

    A comprehensive SEO audit should be conducted at least once a year, or more frequently (quarterly) for rapidly changing websites or highly competitive industries. Smaller, more focused checks on specific areas (e.g., new content, backlink profile) should be ongoing.

  • What are the most critical SEO factors to check first?

    Always start with technical SEO: crawlability, indexability, and site speed. If search engines can't access or process your content, no amount of on-page optimization will matter. After technical issues, focus on content quality and keyword relevance.

  • Can I perform an SEO check myself, or do I need a professional?

    Many basic SEO checks can be performed using readily available tools and resources. However, complex technical issues, in-depth backlink analysis, or advanced competitive research often benefit from the expertise of an experienced SEO professional who can interpret data and formulate strategic recommendations.

  • How do I measure the success of my SEO changes?

    Success is measured through key performance indicators (KPIs) such as organic traffic volume, keyword rankings for target terms, conversion rates from organic search, improvements in Core Web Vitals, and reductions in bounce rate. Consistent monitoring via analytics platforms is crucial.

Share this article
Mercer Daniel
Written by

Mercer Daniel

Daniel Mercer is a paid search and performance marketing specialist focused on helping brands turn search intent into measurable growth. With experience across Google Ads strategy, PPC campaign structure, keyword targeting, ad testing, and landing-page optimization, he writes about search engine marketing in a way that is clear, practical, and performance-driven. Through SEM Rocket, Daniel focuses on making paid search easier to understand, improve, and scale for marketers, founders, agencies, and growth-focused teams.

Find the next paid search fix faster

Cut through noisy reporting and focus on the adjustments that can improve search ad performance now.

Improve SEM with clearer campaign decisions
without the dashboard fog

Use SEM Rocket to focus on the parts of paid search marketing that create better clicks, stronger intent matching, and more efficient campaign management.