Whether you run a small local business or a large e-commerce store, your website’s visibility in search engines depends heavily on how well it is optimised. Unfortunately, many websites are missing critical elements that prevent them from ranking well — and most business owners don’t even know the problems exist.
In this article, we break down the most common SEO and GEO (Generative Engine Optimisation) errors found on websites today, with a particular focus on missing metadata and schema markup — two of the most overlooked yet impactful issues.
1. Missing or Poorly Written SEO Metadata
Metadata is the behind-the-scenes information that tells search engines what your pages are about. When it is missing, incomplete, or poorly written, your site loses valuable ranking opportunities and click-through rates suffer dramatically.
Missing Title Tags
The title tag is one of the single most important on-page SEO elements. It tells search engines and users what a page is about. Many websites either leave title tags completely empty, use the same generic title across every page, or let their content management system auto-generate unhelpful titles like “Home – WordPress” or “Page 1”.
Every page on your website should have a unique, descriptive title tag that includes a primary keyword and accurately reflects the page’s content.
Missing or Duplicate Meta Descriptions
The meta description is the short summary that appears beneath your page title in search engine results. While it is not a direct ranking factor, it has a significant impact on whether users click your link over a competitor’s.
Common errors include:
- No meta description at all, leaving search engines to pull random text from the page
- Duplicate meta descriptions used across multiple pages
- Descriptions that are too long, too short, or fail to include a call to action
- Descriptions that don’t match the actual content of the page
Missing Open Graph and Social Meta Tags
When someone shares your website link on social media platforms like Facebook, LinkedIn, or X (formerly Twitter), the platform reads Open Graph tags to determine what title, image, and description to display. Without these tags, shared links look broken, unprofessional, and far less likely to generate engagement.
Missing Canonical Tags
Without proper canonical tags, search engines may index multiple versions of the same page — for example, with and without a trailing slash, or with different URL parameters. This causes duplicate content issues that dilute your page authority and confuse search engines about which version to rank.
2. Missing or Incorrect Schema Markup
Schema markup (also known as structured data) is a form of code added to your website that helps search engines understand your content more clearly. It is the foundation of rich results — those enhanced search listings that show star ratings, FAQs, prices, opening hours, and more directly in the search results page.
Schema markup is also increasingly important for GEO (Generative Engine Optimisation) — ensuring your content is understood and cited correctly by AI-powered tools like Google’s AI Overviews, ChatGPT, and Bing Copilot.
No Schema Markup at All
Many websites have zero structured data implemented. This means search engines and AI tools must guess what your business does, where it is located, what products or services you offer, and whether your content is trustworthy. Without schema, you are missing out on rich results and losing ground to competitors who have it.
Missing LocalBusiness Schema
For businesses that serve local customers, LocalBusiness schema is essential. It tells search engines your:
- Business name, address, and phone number (NAP)
- Opening hours
- Geographic service areas
- Business category
- Website URL and social profiles
Without this, your business is far less likely to appear in local pack results, Google Maps, and location-based AI answers.
Missing Product and Review Schema
E-commerce websites frequently miss Product schema, which enables star ratings, price, availability, and review counts to appear directly in search results. These rich snippets dramatically increase click-through rates. Missing them means your product listings look plain and uninteresting next to competitors who display five-star ratings and live pricing information.
Missing FAQ and HowTo Schema
FAQ schema allows your frequently asked questions to appear as expandable dropdowns directly in Google search results, taking up significantly more space on the results page and improving visibility. HowTo schema similarly enhances step-by-step content. Both are commonly absent from websites that would benefit enormously from them.
Missing Article and Author Schema
For blogs and news websites, Article schema combined with Person schema for authors is critical. This structured data helps Google understand the credibility of your content and its author, which directly supports E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) — a core part of how Google evaluates content quality.
Incorrect or Broken Schema Implementation
Even when schema markup has been added to a website, it is frequently implemented incorrectly. Common technical errors include:
- Invalid schema types that don’t match the page content
- Missing required properties flagged in Google’s Rich Results Test
- Schema that conflicts with the visible on-page content
- Outdated schema formats no longer supported by search engines
- JSON-LD code that contains syntax errors and fails to parse correctly
3. Additional Common SEO and GEO Errors
Beyond metadata and schema, websites frequently suffer from several other critical issues:
- Missing or poorly structured heading tags — Pages without a clear H1 tag or with a disorganised heading hierarchy confuse both users and search engines.
- Images without alt text — Alt attributes are essential for image SEO, accessibility, and helping AI tools understand visual content.
- Slow page speed — Core Web Vitals are a confirmed ranking factor. Slow-loading pages lose both rankings and users.
- No XML sitemap or robots.txt file — Without these, search engine crawlers may miss key pages or waste crawl budget on irrelevant ones.
- Broken internal and external links — Dead links damage user experience and prevent link equity from flowing correctly through your site.
- Non-mobile-friendly design — Google uses mobile-first indexing, meaning it primarily evaluates the mobile version of your site.
- Missing HTTPS / SSL certificate — Unsecured websites are flagged by browsers and penalised in search rankings.
- Thin or duplicate content — Pages with little value or copied content are actively suppressed by search algorithms.
Why GEO Errors Are Becoming Just as Critical as SEO Errors
The rise of AI-powered search — including Google’s AI Overviews, ChatGPT search, and Microsoft Copilot — has introduced a new layer of optimisation known as Generative Engine Optimisation (GEO). AI tools rely heavily on structured data, clear content semantics, and authoritative signals to decide which sources to cite and recommend.
Websites without proper schema markup, clear metadata, and well-structured content are being completely ignored by AI-generated answers — even when their content is highly relevant. This represents an enormous missed opportunity for businesses that want to remain visible as search behaviour evolves.
How MD3 Digital Solutions Can Help Fix These Errors
At MD3 Digital Solutions, we specialise in identifying and fixing exactly the kind of SEO and GEO errors described in this article. We carry out comprehensive technical audits of your website to uncover every issue that may be holding your rankings back — from missing metadata and broken schema to page speed problems and content gaps.
Our team will:
- Write and implement optimised title tags, meta descriptions, and Open Graph tags for every page on your site
- Build and deploy accurate, complete schema markup tailored to your business type — including LocalBusiness, Product, FAQ, Article, and more
- Resolve technical SEO issues including canonical tags, sitemaps, robots.txt, and broken links
- Optimise your content and site structure for both traditional search engines and AI-powered platforms
- Provide clear, jargon-free reporting so you can see exactly what was fixed and why it matters
We don’t just identify problems — we fix them properly, with a long-term strategy designed to grow your visibility, increase your traffic, and ensure your business is found by the right people at the right time.
Don’t let technical errors keep your website invisible. Contact MD3 Digital Solutions today and let us audit your website, fix your SEO and GEO errors, and put your business in front of the customers searching for exactly what you offer.
Get in touch with us now — your competitors already are.