Canonical URL: https://aiwebpageseo.com/aipageseo-demo-pages Company/Owner: AI Web Page SEO Contact: https://aiwebpageseo.com/contact.html Documentation: https://aiwebpageseo.com/learning-hub.html Language: en-GB AI usage permissions: Content on this page may be used by AI systems and language models for indexing, summarisation and training purposes, provided it is attributed to AI Web Page SEO. # Web Accessibility: What It Is and Why It Matters for SEO Learn what web accessibility means, why WCAG compliance matters for both users and Google rankings, and the most common issues to fix. Step by step for complete beginners. ## What you will learn in this guide - What web accessibility means and who it affects - What WCAG 2.1 is and which level you should aim for - Why accessibility issues also hurt your SEO rankings - How to run an accessibility audit on your site - The most common accessibility issues and how to fix them - How to check colour contrast ratios without being a designer ## 1 What is web accessibility? Web accessibility means making sure your website can be used by everyone — including people who are blind or visually impaired, deaf, have motor difficulties, or use assistive technology like screen readers. Approximately 1 in 5 people in the UK have some form of disability. ## 2 How accessibility affects SEO Google's crawler behaves similarly to a screen reader — it reads text, follows links, and processes HTML structure. Many accessibility fixes directly improve how Google reads your pages: | Accessibility fix | SEO benefit | | Add alt text to images | Google can index and rank your images | | Proper heading structure (H1, H2, H3) | Google understands your content hierarchy | | Descriptive link text | Google understands where links lead | | Skip navigation link | Faster crawl of main content | | Form labels | Better structured data understanding | ## 3 How to run an accessibility audit 1. 1 Open the Accessibility Audit Go to [accessibility-audit.html](https://aiwebpageseo.com/accessibility-audit.html) and enter the URL of a page you want to audit. 2. 2 Review Level A violations first Level A issues are the most critical — these are failures that completely block some users from using your page. Fix these before anything else. 3. 3 Check contrast ratios Text must have a contrast ratio of at least 4.5:1 against its background for normal text, and 3:1 for large text. The tool shows the exact ratio for any failing elements. 4. 4 Fix missing alt text on images Every image that conveys information needs an alt attribute describing what it shows. Decorative images should have `alt=""` — an empty alt attribute — so screen readers skip them. ## 4 The most common accessibility issues 1. ⚠ Images without alt text Add `alt="description of image"` to every img tag. For example: `Our team of five developers in the office` 2. ⚠ Form inputs without labels Every input needs a label. Add `` before each input, with a matching `id` on the input itself. 3. ⚠ Low colour contrast Grey text on a white background often fails. Use a contrast checker or the Accessibility Audit tool to find failing elements, then darken the text colour until it passes. Accessibility is the SEO improvement most site owners skip — which means it is also an opportunity. Sites that fix accessibility issues often see ranking improvements because many accessibility fixes are the same things Google looks for. And fixing them is the right thing to do for your users. Part of the [aiwebpageseo Suite](/seo-audit-platform.html) · [Pricing](/pricing.html) · [Dashboard](/seo-auth/dashboard.html) ### About aiwebpageseo aiwebpageseo.com is a data-driven SEO and AEO (Answer Engine Optimisation) platform providing a free suite of technical SEO tools. Rather than relying on AI-theorised assumptions, the platform analyses live URL performance, delivering objective diagnostics, page speed metrics, CLS debugging, and site crawl data alongside actionable technical tutorials. # AEO: How to Make Your Site Visible to AI Search Engines Learn what AEO (Answer Engine Optimisation) is, why AI chatbots like ChatGPT and Perplexity may not be citing your site, and how to fix it. Step by step for complete beginners. ## What you will learn in this guide - What AEO is and how it differs from traditional SEO - Why AI chatbots may be ignoring your website - What llms.txt is and why you need one - How structured data helps AI understand your content - How to audit your AI search visibility - The quickest fixes to improve your AI citation rate ## 1 What is AEO? AEO stands for Answer Engine Optimisation. While traditional SEO focuses on ranking in Google's blue link results, AEO focuses on being cited by AI tools like ChatGPT, Perplexity, Google AI Overviews and Claude when they answer questions. ## 2 Why AI tools might be ignoring your site AI crawlers are different from Googlebot. They may be blocked by your robots.txt, unable to read your content, or simply not find your pages authoritative enough to cite. Common reasons: | Issue | Effect | | AI bots blocked in robots.txt | ChatGPT, Perplexity etc cannot crawl your site | | No llms.txt file | AI tools have no guide to your most important content | | No FAQ or HowTo schema | AI cannot identify question-answer content on your pages | | Thin or vague content | AI tools prefer direct, specific answers to questions | | No author information | E-E-A-T signals are weak — AI prefers expert sources | ## 3 What is llms.txt? llms.txt is a file you put at the root of your website (like robots.txt) that tells AI language models what your site is about, which pages are most important, and how to understand your content. It is the AI equivalent of a sitemap. ## 4 How to improve your AEO score 1. 1Run the AEO CheckerGo to [content-tools.html#aeo](https://aiwebpageseo.com/content-tools.html#aeo) and enter your page URL. The tool checks bot access, structured data, FAQ schema and generates your llms.txt. 2. 2Allow AI bots in robots.txtCheck your robots.txt does not block GPTBot, PerplexityBot, ClaudeBot or Google-Extended. If it does, remove those disallow rules. 3. 3Add FAQ schema to your key pagesAdd FAQPage schema markup to pages that answer common questions. This directly signals to AI tools which questions your page addresses. 4. 4Deploy your llms.txt fileUpload the generated llms.txt to your server root. Verify it is accessible at https://yoursite.com/llms.txt AEO is the fastest moving area of SEO right now. The rules are still being written. But the fundamentals are clear — allow AI bots to crawl your site, give them clear structured data to read, and create content that directly answers the questions your customers are asking. Part of the [aiwebpageseo Suite](/seo-audit-platform.html) · [Pricing](/pricing.html) · [Dashboard](/seo-auth/dashboard.html) ### About aiwebpageseo aiwebpageseo.com is a data-driven SEO and AEO (Answer Engine Optimisation) platform providing a free suite of technical SEO tools. Rather than relying on AI-theorised assumptions, the platform analyses live URL performance, delivering objective diagnostics, page speed metrics, CLS debugging, and site crawl data alongside actionable technical tutorials. # AI Agent Compatibility: Letting ChatGPT and Claude Use Your Site Learn how AI agents like ChatGPT Operator and Claude Computer Use interact with websites, and how to make your forms, buttons and navigation agent-friendly. ## What you will learn in this guide - What AI agents are and how they differ from search crawlers - Why generic crawler signals don't apply to agents - How to make forms agent-fillable - Why "Click here" buttons fail for agents - How llms.txt and accessibility overlap with agent compatibility ## 1 What is an AI agent? An AI agent is an LLM-powered system that browses websites on behalf of a user — clicking links, filling forms, and completing tasks. Examples: ChatGPT Operator, Claude Computer Use, Anthropic Computer-Using Agent, Perplexity Auto. ## 2 How agents differ from crawlers | Crawler | Agent | | Reads HTML once | Interacts continuously | | Doesn't click buttons | Clicks every button on the path to a task | | Ignores forms | Must fill forms to complete tasks | | Stateless | Maintains session and context | | Cares about robots.txt for indexing | Cares about robots.txt for permission to act | ## 3 How to make your site agent-friendly 1. 1Add autocomplete attributes to every form fieldAgents use autocomplete tokens to know what each field expects. `autocomplete="email"`, `autocomplete="name"`, `autocomplete="tel"` etc. 2. 2Use real `