Every time we run an SEO audit for a new client, we find the same problems. It does not matter if the business is a five-person startup or a 200-person company. It does not matter if they spent $500 or $50,000 on their website. The same fundamental mistakes appear again and again, quietly bleeding traffic, rankings, and revenue.
We are sharing the 10 most common issues we find because most of them are fixable in a few hours. If your site has even three of these problems, addressing them will likely produce a measurable improvement in search performance within 60 days.
Mistake 1: Missing or Incorrect Schema Markup
What we see: Most websites either have no schema markup at all, or they have a basic Organization schema that was added during development and never updated. Service pages, FAQ sections, product pages, and location data are almost always missing structured data.
How to fix it: Add relevant schema to every key page. LocalBusiness schema for your main site. Service schema for each service page. FAQPage schema for any page with questions and answers. Product schema for product pages. If you serve multiple locations, each one needs its own LocalBusiness schema. This matters for both traditional SEO and GEO optimization because AI models rely heavily on structured data to understand and cite your content.
Mistake 2: Duplicate or Generic Title Tags
What we see: Pages across the site sharing the same title tag, or title tags that say things like "Services | Company Name" without any keywords. We recently audited a 40-page site where 28 pages had identical title tags.
How to fix it: Every page needs a unique title tag that includes the primary keyword for that page. Follow the format: Primary Keyword - Secondary Keyword | Brand Name. Keep it under 60 characters. This is one of the most basic SEO elements and one of the most commonly neglected.
Mistake 3: No GEO Strategy Whatsoever
What we see: Even businesses with decent traditional SEO have no strategy for appearing in AI-generated search results. They have never searched for their business in ChatGPT or Perplexity. They have no idea whether AI tools recommend them or their competitors.
How to fix it: Start by auditing your AI search visibility. Search for your key services and brand name in ChatGPT, Perplexity, and Google AI Overviews. Then focus on the fundamentals that drive GEO: authoritative content that directly answers common questions, proper schema markup, consistent brand mentions across the web, and content structured for easy summarization. Read our full guide on what GEO optimization is and why your business needs it.
Mistake 4: Thin Content on Key Pages
What we see: Service pages with 100 to 200 words of generic copy. Product pages with nothing but a title and a price. Location pages that are just a map and an address. Google and AI models need substance to understand what your page is about and whether it deserves to rank.
How to fix it: Every important page needs at least 500 to 800 words of useful, specific content. Service pages should explain what the service includes, who it is for, how it works, what it costs, and frequently asked questions. This depth serves both human visitors and search engines.
Mistake 5: Ignoring AI Crawlers
What we see: Robots.txt files that block AI crawlers (GPTBot, ClaudeBot, PerplexityBot), or no consideration for AI crawlers at all. Some websites inadvertently block these bots through aggressive rate limiting or firewall rules.
How to fix it: Check your robots.txt file and server logs. Make sure you are not blocking the major AI crawlers unless you have a specific reason to do so. If you want to appear in AI search results, these bots need access to your content. Add a specific AI crawlers section to your robots.txt that explicitly allows them.
Key Takeaway
If your robots.txt blocks GPTBot, ClaudeBot, or PerplexityBot, your content cannot appear in AI-generated search results. This is one of the fastest fixes with the most immediate GEO impact.
Mistake 6: Slow Mobile Performance
What we see: Websites that load in 2 to 3 seconds on desktop but take 6 to 10 seconds on mobile. Uncompressed images, render-blocking JavaScript, excessive third-party scripts, and oversized fonts are the usual culprits.
How to fix it: Run your site through Google PageSpeed Insights and address every issue in the "Opportunities" section. Compress images, defer non-critical JavaScript, minimize CSS, and eliminate unused code. Target a mobile load time under 3 seconds and a Core Web Vitals score in the green zone. Google has been clear that page speed is a ranking factor, and slow sites also have higher bounce rates.
Source: Google, "Web Vitals," https://web.dev/vitals/
Mistake 7: No Internal Linking Strategy
What we see: Blog posts that link to nothing else on the site. Service pages that do not connect to related services. Orphaned pages that are accessible only through the navigation menu and have zero internal links pointing to them.
How to fix it: Build a deliberate internal linking structure. Every blog post should link to at least two or three relevant service pages and one or two related blog posts. Service pages should link to relevant case studies, blog content, and related services. This helps search engines understand your site structure, distributes page authority, and keeps visitors engaged longer. Both SEO and GEO benefit from clear topical connections between your pages.
Mistake 8: Keyword Cannibalization
What we see: Multiple pages targeting the same primary keyword, forcing them to compete against each other in search results. A common example: a service page and a blog post both targeting "AI consulting services," splitting the ranking potential between them.
How to fix it: Run a content audit and map each page to a single primary keyword. If two pages target the same term, either merge them into one stronger page or differentiate them with clearly distinct keyword targets. Use tools like Ahrefs or SEMrush to identify cannibalization issues.
Mistake 9: Missing Alt Text on Images
What we see: Websites with dozens or hundreds of images and zero alt text. Or alt text that says "image1.jpg" or "photo." This is a missed SEO opportunity and an accessibility failure.
How to fix it: Add descriptive alt text to every image on your site. The alt text should describe what the image shows and, where natural, include relevant keywords. "Team of accountants reviewing financial reports at conference table" is good. "Image" is not. This helps with image search rankings, accessibility compliance, and gives AI models more context about your content.
Mistake 10: Neglecting Google Business Profile
What we see: Google Business Profiles that were set up years ago and never updated. Missing business hours, no recent photos, zero posts, and a handful of unanswered reviews. For local businesses, this is like leaving money on the sidewalk.
How to fix it: Treat your GBP as an active marketing channel. Update your business description and categories. Post weekly updates (events, promotions, news). Respond to every review within 48 hours. Upload new photos monthly. Add products or services. For detailed guidance, read our guide on local SEO optimization.
Source: Moz, "Local Search Ranking Factors," https://moz.com/local-search-ranking-factors
The Compounding Effect
None of these mistakes exists in isolation. Missing schema makes your GEO strategy weaker. Thin content makes your internal linking less effective. Slow mobile speed increases bounce rates, which hurts rankings, which reduces the backlinks you earn, which makes your domain authority lower, which makes it harder to rank for anything.
Fixing these issues is not about checking boxes. It is about building a search foundation where every element reinforces the others. The businesses that rank well in both traditional search and AI search in 2026 are the ones that get the fundamentals right.
Want us to audit your site for these issues? We will show you exactly what is holding your search performance back.
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